diff options
Diffstat (limited to 'target/linux/ar71xx/files/drivers')
25 files changed, 0 insertions, 10582 deletions
diff --git a/target/linux/ar71xx/files/drivers/gpio/gpio-latch.c b/target/linux/ar71xx/files/drivers/gpio/gpio-latch.c deleted file mode 100644 index d911f6a2cb..0000000000 --- a/target/linux/ar71xx/files/drivers/gpio/gpio-latch.c +++ /dev/null @@ -1,220 +0,0 @@ -/* - * GPIO latch driver - * - * Copyright (C) 2014 Gabor Juhos <juhosg@openwrt.org> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation. - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/module.h> -#include <linux/types.h> -#include <linux/gpio.h> -#include <linux/slab.h> -#include <linux/platform_device.h> - -#include <linux/platform_data/gpio-latch.h> - -struct gpio_latch_chip { - struct gpio_chip gc; - - struct mutex mutex; - struct mutex latch_mutex; - bool latch_enabled; - int le_gpio; - bool le_active_low; - int *gpios; -}; - -static inline struct gpio_latch_chip *to_gpio_latch_chip(struct gpio_chip *gc) -{ - return container_of(gc, struct gpio_latch_chip, gc); -} - -static void gpio_latch_lock(struct gpio_latch_chip *glc, bool enable) -{ - mutex_lock(&glc->mutex); - - if (enable) - glc->latch_enabled = true; - - if (glc->latch_enabled) - mutex_lock(&glc->latch_mutex); -} - -static void gpio_latch_unlock(struct gpio_latch_chip *glc, bool disable) -{ - if (glc->latch_enabled) - mutex_unlock(&glc->latch_mutex); - - if (disable) - glc->latch_enabled = true; - - mutex_unlock(&glc->mutex); -} - -static int -gpio_latch_get(struct gpio_chip *gc, unsigned offset) -{ - struct gpio_latch_chip *glc = to_gpio_latch_chip(gc); - int ret; - - gpio_latch_lock(glc, false); - ret = gpio_get_value(glc->gpios[offset]); - gpio_latch_unlock(glc, false); - - return ret; -} - -static void -gpio_latch_set(struct gpio_chip *gc, unsigned offset, int value) -{ - struct gpio_latch_chip *glc = to_gpio_latch_chip(gc); - bool enable_latch = false; - bool disable_latch = false; - int gpio; - - gpio = glc->gpios[offset]; - - if (gpio == glc->le_gpio) { - enable_latch = value ^ glc->le_active_low; - disable_latch = !enable_latch; - } - - gpio_latch_lock(glc, enable_latch); - gpio_set_value(gpio, value); - gpio_latch_unlock(glc, disable_latch); -} - -static int -gpio_latch_direction_input(struct gpio_chip *gc, unsigned offset) -{ - struct gpio_latch_chip *glc = to_gpio_latch_chip(gc); - int ret; - - gpio_latch_lock(glc, false); - ret = gpio_direction_input(glc->gpios[offset]); - gpio_latch_unlock(glc, false); - - return ret; -} - -static int -gpio_latch_direction_output(struct gpio_chip *gc, unsigned offset, int value) -{ - struct gpio_latch_chip *glc = to_gpio_latch_chip(gc); - bool enable_latch = false; - bool disable_latch = false; - int gpio; - int ret; - - gpio = glc->gpios[offset]; - - if (gpio == glc->le_gpio) { - enable_latch = value ^ glc->le_active_low; - disable_latch = !enable_latch; - } - - gpio_latch_lock(glc, enable_latch); - ret = gpio_direction_output(gpio, value); - gpio_latch_unlock(glc, disable_latch); - - return ret; -} - -static int gpio_latch_probe(struct platform_device *pdev) -{ - struct gpio_latch_chip *glc; - struct gpio_latch_platform_data *pdata; - struct gpio_chip *gc; - int size; - int ret; - int i; - - pdata = dev_get_platdata(&pdev->dev); - if (!pdata) - return -EINVAL; - - if (pdata->le_gpio_index >= pdata->num_gpios || - !pdata->num_gpios || - !pdata->gpios) - return -EINVAL; - - for (i = 0; i < pdata->num_gpios; i++) { - int gpio = pdata->gpios[i]; - - ret = devm_gpio_request(&pdev->dev, gpio, - GPIO_LATCH_DRIVER_NAME); - if (ret) - return ret; - } - - glc = devm_kzalloc(&pdev->dev, sizeof(*glc), GFP_KERNEL); - if (!glc) - return -ENOMEM; - - mutex_init(&glc->mutex); - mutex_init(&glc->latch_mutex); - - size = pdata->num_gpios * sizeof(glc->gpios[0]); - glc->gpios = devm_kzalloc(&pdev->dev, size , GFP_KERNEL); - if (!glc->gpios) - return -ENOMEM; - - memcpy(glc->gpios, pdata->gpios, size); - - glc->le_gpio = glc->gpios[pdata->le_gpio_index]; - glc->le_active_low = pdata->le_active_low; - - gc = &glc->gc; - - gc->label = GPIO_LATCH_DRIVER_NAME; - gc->base = pdata->base; - gc->can_sleep = true; - gc->ngpio = pdata->num_gpios; - gc->get = gpio_latch_get; - gc->set = gpio_latch_set; - gc->direction_input = gpio_latch_direction_input, - gc->direction_output = gpio_latch_direction_output; - - platform_set_drvdata(pdev, glc); - - ret = gpiochip_add(&glc->gc); - if (ret) - return ret; - - return 0; -} - -static int gpio_latch_remove(struct platform_device *pdev) -{ - struct gpio_latch_chip *glc = platform_get_drvdata(pdev); - - gpiochip_remove(&glc->gc); - return 0; -} - - -static struct platform_driver gpio_latch_driver = { - .probe = gpio_latch_probe, - .remove = gpio_latch_remove, - .driver = { - .name = GPIO_LATCH_DRIVER_NAME, - .owner = THIS_MODULE, - }, -}; - -static int __init gpio_latch_init(void) -{ - return platform_driver_register(&gpio_latch_driver); -} - -postcore_initcall(gpio_latch_init); - -MODULE_DESCRIPTION("GPIO latch driver"); -MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>"); -MODULE_LICENSE("GPL v2"); -MODULE_ALIAS("platform:" GPIO_LATCH_DRIVER_NAME); diff --git a/target/linux/ar71xx/files/drivers/gpio/gpio-nxp-74hc153.c b/target/linux/ar71xx/files/drivers/gpio/gpio-nxp-74hc153.c deleted file mode 100644 index 82e6e943ff..0000000000 --- a/target/linux/ar71xx/files/drivers/gpio/gpio-nxp-74hc153.c +++ /dev/null @@ -1,243 +0,0 @@ -/* - * NXP 74HC153 - Dual 4-input multiplexer GPIO driver - * - * Copyright (C) 2010 Gabor Juhos <juhosg@openwrt.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include <linux/version.h> -#include <linux/module.h> -#include <linux/init.h> -#include <linux/gpio.h> -#include <linux/slab.h> -#include <linux/platform_device.h> -#include <linux/nxp_74hc153.h> - -#define NXP_74HC153_NUM_GPIOS 8 -#define NXP_74HC153_S0_MASK 0x1 -#define NXP_74HC153_S1_MASK 0x2 -#define NXP_74HC153_BANK_MASK 0x4 - -struct nxp_74hc153_chip { - struct device *parent; - struct gpio_chip gpio_chip; - struct mutex lock; -}; - -static struct nxp_74hc153_chip *gpio_to_nxp(struct gpio_chip *gc) -{ - return container_of(gc, struct nxp_74hc153_chip, gpio_chip); -} - -static int nxp_74hc153_direction_input(struct gpio_chip *gc, unsigned offset) -{ - return 0; -} - -static int nxp_74hc153_direction_output(struct gpio_chip *gc, - unsigned offset, int val) -{ - return -EINVAL; -} - -static int nxp_74hc153_get_value(struct gpio_chip *gc, unsigned offset) -{ - struct nxp_74hc153_chip *nxp; - struct nxp_74hc153_platform_data *pdata; - unsigned s0; - unsigned s1; - unsigned pin; - int ret; - - nxp = gpio_to_nxp(gc); - pdata = nxp->parent->platform_data; - - s0 = !!(offset & NXP_74HC153_S0_MASK); - s1 = !!(offset & NXP_74HC153_S1_MASK); - pin = (offset & NXP_74HC153_BANK_MASK) ? pdata->gpio_pin_2y - : pdata->gpio_pin_1y; - - mutex_lock(&nxp->lock); - gpio_set_value(pdata->gpio_pin_s0, s0); - gpio_set_value(pdata->gpio_pin_s1, s1); - ret = gpio_get_value(pin); - mutex_unlock(&nxp->lock); - - return ret; -} - -static void nxp_74hc153_set_value(struct gpio_chip *gc, - unsigned offset, int val) -{ - /* not supported */ -} - -static int nxp_74hc153_probe(struct platform_device *pdev) -{ - struct nxp_74hc153_platform_data *pdata; - struct nxp_74hc153_chip *nxp; - struct gpio_chip *gc; - int err; - - pdata = pdev->dev.platform_data; - if (pdata == NULL) { - dev_dbg(&pdev->dev, "no platform data specified\n"); - return -EINVAL; - } - - nxp = kzalloc(sizeof(struct nxp_74hc153_chip), GFP_KERNEL); - if (nxp == NULL) { - dev_err(&pdev->dev, "no memory for private data\n"); - return -ENOMEM; - } - - err = gpio_request(pdata->gpio_pin_s0, dev_name(&pdev->dev)); - if (err) { - dev_err(&pdev->dev, "unable to claim gpio %u, err=%d\n", - pdata->gpio_pin_s0, err); - goto err_free_nxp; - } - - err = gpio_request(pdata->gpio_pin_s1, dev_name(&pdev->dev)); - if (err) { - dev_err(&pdev->dev, "unable to claim gpio %u, err=%d\n", - pdata->gpio_pin_s1, err); - goto err_free_s0; - } - - err = gpio_request(pdata->gpio_pin_1y, dev_name(&pdev->dev)); - if (err) { - dev_err(&pdev->dev, "unable to claim gpio %u, err=%d\n", - pdata->gpio_pin_1y, err); - goto err_free_s1; - } - - err = gpio_request(pdata->gpio_pin_2y, dev_name(&pdev->dev)); - if (err) { - dev_err(&pdev->dev, "unable to claim gpio %u, err=%d\n", - pdata->gpio_pin_2y, err); - goto err_free_1y; - } - - err = gpio_direction_output(pdata->gpio_pin_s0, 0); - if (err) { - dev_err(&pdev->dev, - "unable to set direction of gpio %u, err=%d\n", - pdata->gpio_pin_s0, err); - goto err_free_2y; - } - - err = gpio_direction_output(pdata->gpio_pin_s1, 0); - if (err) { - dev_err(&pdev->dev, - "unable to set direction of gpio %u, err=%d\n", - pdata->gpio_pin_s1, err); - goto err_free_2y; - } - - err = gpio_direction_input(pdata->gpio_pin_1y); - if (err) { - dev_err(&pdev->dev, - "unable to set direction of gpio %u, err=%d\n", - pdata->gpio_pin_1y, err); - goto err_free_2y; - } - - err = gpio_direction_input(pdata->gpio_pin_2y); - if (err) { - dev_err(&pdev->dev, - "unable to set direction of gpio %u, err=%d\n", - pdata->gpio_pin_2y, err); - goto err_free_2y; - } - - nxp->parent = &pdev->dev; - mutex_init(&nxp->lock); - - gc = &nxp->gpio_chip; - - gc->direction_input = nxp_74hc153_direction_input; - gc->direction_output = nxp_74hc153_direction_output; - gc->get = nxp_74hc153_get_value; - gc->set = nxp_74hc153_set_value; - gc->can_sleep = 1; - - gc->base = pdata->gpio_base; - gc->ngpio = NXP_74HC153_NUM_GPIOS; - gc->label = dev_name(nxp->parent); -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,5,0) - gc->dev = nxp->parent; -#else - gc->parent = nxp->parent; -#endif - gc->owner = THIS_MODULE; - - err = gpiochip_add(&nxp->gpio_chip); - if (err) { - dev_err(&pdev->dev, "unable to add gpio chip, err=%d\n", err); - goto err_free_2y; - } - - platform_set_drvdata(pdev, nxp); - return 0; - -err_free_2y: - gpio_free(pdata->gpio_pin_2y); -err_free_1y: - gpio_free(pdata->gpio_pin_1y); -err_free_s1: - gpio_free(pdata->gpio_pin_s1); -err_free_s0: - gpio_free(pdata->gpio_pin_s0); -err_free_nxp: - kfree(nxp); - return err; -} - -static int nxp_74hc153_remove(struct platform_device *pdev) -{ - struct nxp_74hc153_chip *nxp = platform_get_drvdata(pdev); - struct nxp_74hc153_platform_data *pdata = pdev->dev.platform_data; - - if (nxp) { - gpiochip_remove(&nxp->gpio_chip); - gpio_free(pdata->gpio_pin_2y); - gpio_free(pdata->gpio_pin_1y); - gpio_free(pdata->gpio_pin_s1); - gpio_free(pdata->gpio_pin_s0); - - kfree(nxp); - platform_set_drvdata(pdev, NULL); - } - - return 0; -} - -static struct platform_driver nxp_74hc153_driver = { - .probe = nxp_74hc153_probe, - .remove = nxp_74hc153_remove, - .driver = { - .name = NXP_74HC153_DRIVER_NAME, - .owner = THIS_MODULE, - }, -}; - -static int __init nxp_74hc153_init(void) -{ - return platform_driver_register(&nxp_74hc153_driver); -} -subsys_initcall(nxp_74hc153_init); - -static void __exit nxp_74hc153_exit(void) -{ - platform_driver_unregister(&nxp_74hc153_driver); -} -module_exit(nxp_74hc153_exit); - -MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>"); -MODULE_DESCRIPTION("GPIO expander driver for NXP 74HC153"); -MODULE_LICENSE("GPL v2"); -MODULE_ALIAS("platform:" NXP_74HC153_DRIVER_NAME); diff --git a/target/linux/ar71xx/files/drivers/leds/leds-nu801.c b/target/linux/ar71xx/files/drivers/leds/leds-nu801.c deleted file mode 100644 index 11e8927785..0000000000 --- a/target/linux/ar71xx/files/drivers/leds/leds-nu801.c +++ /dev/null @@ -1,396 +0,0 @@ -/* - * LED driver for NU801 - * - * Kevin Paul Herbert - * Copyright (c) 2012, Meraki, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - */ - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/slab.h> -#include <linux/platform_device.h> -#include <linux/leds.h> -#include <linux/workqueue.h> -#include <linux/delay.h> -#include <linux/leds-nu801.h> - -#include <linux/gpio.h> -#include <linux/of_gpio.h> - -#define MAX_NAME_LENGTH 24 -#define NUM_COLORS 3 - -static const char * const led_nu801_colors[] = { "blue", "green", "red" }; - -struct led_nu801_led_data { - struct led_classdev cdev; - struct led_nu801_data *controller; - enum led_brightness level; - char name[MAX_NAME_LENGTH]; -}; - -struct led_nu801_data { - unsigned cki; - unsigned sdi; - int lei; - struct delayed_work work; - struct led_nu801_led_data *led_chain; - int num_leds; - const char *device_name; - const char *name; - u32 ndelay; - atomic_t pending; -}; - -static void led_nu801_work(struct work_struct *work) -{ - struct led_nu801_data *controller = - container_of(work, struct led_nu801_data, work.work); - struct led_nu801_led_data *led; - u16 bit; - u16 brightness; - int index; - - for (index = 0; index < controller->num_leds; index++) { - led = &controller->led_chain[index]; - brightness = led->level << 8; /* To do: gamma correction */ - for (bit = 0x8000; bit; bit = bit >> 1) { - gpio_set_value(controller->sdi, - (brightness & bit) != 0); - gpio_set_value(controller->cki, 1); - if (unlikely(((index == (controller->num_leds - 1)) && - (bit == 1) && - (controller->lei < 0)))) { - udelay(600); - } else { - ndelay(controller->ndelay); - } - gpio_set_value(controller->cki, 0); - ndelay(controller->ndelay); - } - } - if (controller->lei >= 0) { - gpio_set_value(controller->lei, 1); - ndelay(controller->ndelay); - gpio_set_value(controller->lei, 0); - } - atomic_set(&controller->pending, 1); -} - -static void led_nu801_set(struct led_classdev *led_cdev, - enum led_brightness value) -{ - struct led_nu801_led_data *led_dat = - container_of(led_cdev, struct led_nu801_led_data, cdev); - struct led_nu801_data *controller = led_dat->controller; - - if (led_dat->level != value) { - led_dat->level = value; - if (atomic_dec_and_test(&controller->pending)) - schedule_delayed_work(&led_dat->controller->work, - (HZ/1000) + 1); - } -} - -static int led_nu801_create(struct led_nu801_data *controller, - struct device *parent, - int index, - enum led_brightness brightness, -#ifdef CONFIG_LEDS_TRIGGERS - const char *default_trigger, -#endif - const char *color) -{ - struct led_nu801_led_data *led = &controller->led_chain[index]; - int ret; - - scnprintf(led->name, sizeof(led->name), "%s:%s:%s%d", - controller->device_name, color, controller->name, - (controller->num_leds - (index + 1)) / NUM_COLORS); - led->cdev.name = led->name; - led->cdev.brightness_set = led_nu801_set; -#ifdef CONFIG_LEDS_TRIGGERS - led->cdev.default_trigger = default_trigger; -#endif - led->level = brightness; - led->controller = controller; - ret = led_classdev_register(parent, &led->cdev); - if (ret < 0) - goto err; - - return 0; - -err: - kfree(led); - return ret; -} - -static int -led_nu801_create_chain(const struct led_nu801_template *template, - struct led_nu801_data *controller, - struct device *parent) -{ - int ret; - int index; - - controller->cki = template->cki; - controller->sdi = template->sdi; - controller->lei = template->lei; - controller->num_leds = template->num_leds * 3; - controller->device_name = template->device_name; - controller->name = template->name; - controller->ndelay = template->ndelay; - atomic_set(&controller->pending, 1); - - controller->led_chain = kzalloc(sizeof(struct led_nu801_led_data) * - controller->num_leds, GFP_KERNEL); - - if (!controller->led_chain) - return -ENOMEM; - - ret = gpio_request(controller->cki, template->name); - if (ret < 0) - goto err_free_chain; - - ret = gpio_request(controller->sdi, template->name); - if (ret < 0) - goto err_ret_cki; - - if (controller->lei >= 0) { - ret = gpio_request(controller->lei, template->name); - if (ret < 0) - goto err_ret_sdi; - ret = gpio_direction_output(controller->lei, 0); - if (ret < 0) - goto err_ret_lei; - } - - ret = gpio_direction_output(controller->cki, 0); - if (ret < 0) - goto err_ret_lei; - - ret = gpio_direction_output(controller->sdi, 0); - if (ret < 0) - goto err_ret_lei; - - for (index = 0; index < controller->num_leds; index++) { - ret = led_nu801_create(controller, parent, index, - template->init_brightness - [index % NUM_COLORS], -#ifdef CONFIG_LEDS_TRIGGERS - template->default_trigger, -#endif - template->led_colors[index % NUM_COLORS] ? - template->led_colors[index % NUM_COLORS] : - led_nu801_colors[index % NUM_COLORS]); - if (ret < 0) - goto err_ret_sdi; - } - - INIT_DELAYED_WORK(&controller->work, led_nu801_work); - schedule_delayed_work(&controller->work, 0); - - return 0; - -err_ret_lei: - if (controller->lei >= 0) - gpio_free(controller->lei); -err_ret_sdi: - gpio_free(controller->sdi); -err_ret_cki: - gpio_free(controller->cki); -err_free_chain: - kfree(controller->led_chain); - - return ret; -} - -static void led_nu801_delete_chain(struct led_nu801_data *controller) -{ - struct led_nu801_led_data *led_chain; - struct led_nu801_led_data *led; - int index; - int num_leds; - - led_chain = controller->led_chain; - controller->led_chain = 0; - num_leds = controller->num_leds; - controller->num_leds = 0; - cancel_delayed_work_sync(&controller->work); - - for (index = 0; index < num_leds; index++) { - led = &led_chain[index]; - led_classdev_unregister(&led->cdev); - } - - gpio_free(controller->cki); - gpio_free(controller->sdi); - if (controller->lei >= 0) - gpio_free(controller->lei); - - kfree(led_chain); -} - -static struct led_nu801_data * -leds_nu801_create_of(struct platform_device *pdev) -{ - struct device_node *np = pdev->dev.of_node, *child; - struct led_nu801_data *controllers; - int count = 0, ret; - int i = 0; - - for_each_child_of_node(np, child) - count++; - if (!count) - return NULL; - - controllers = kzalloc(sizeof(struct led_nu801_data) * count, - GFP_KERNEL); - if (!controllers) - return NULL; - - for_each_child_of_node(np, child) { - const char *state; - struct led_nu801_template template = {}; - struct device_node *colors; - int jj; - - template.cki = of_get_named_gpio_flags(child, "cki", 0, NULL); - template.sdi = of_get_named_gpio_flags(child, "sdi", 0, NULL); - if (of_find_property(child, "lei", NULL)) { - template.lei = of_get_named_gpio_flags(child, "lei", - 0, NULL); - } else { - template.lei = -1; - } - of_property_read_u32(child, "ndelay", &template.ndelay); - of_property_read_u32(child, "num_leds", &template.num_leds); - template.name = of_get_property(child, "label", NULL) ? : - child->name; - template.default_trigger = of_get_property(child, - "default-trigger", NULL); - - jj = 0; - for_each_child_of_node(child, colors) { - template.led_colors[jj] = of_get_property(colors, - "label", NULL); - state = of_get_property(colors, "state", NULL); - if (!strncmp(state, "off", 3)) - template.init_brightness[jj] = LED_OFF; - else if (!strncmp(state, "half", 4)) - template.init_brightness[jj] = LED_HALF; - else if (!strncmp(state, "full", 4)) - template.init_brightness[jj] = LED_FULL; - jj++; - } - - ret = led_nu801_create_chain(&template, - &controllers[i], - &pdev->dev); - if (ret < 0) - goto err; - i++; - } - - return controllers; - -err: - for (i = i - 1; i >= 0; i--) - led_nu801_delete_chain(&controllers[i]); - kfree(controllers); - return NULL; -} - -static int led_nu801_probe(struct platform_device *pdev) -{ - struct led_nu801_platform_data *pdata = pdev->dev.platform_data; - struct led_nu801_data *controllers; - int i, ret = 0; - - if (!(pdata && pdata->num_controllers)) { - controllers = leds_nu801_create_of(pdev); - if (!controllers) - return -ENODEV; - } - - controllers = kzalloc(sizeof(struct led_nu801_data) * - pdata->num_controllers, GFP_KERNEL); - if (!controllers) - return -ENOMEM; - - for (i = 0; i < pdata->num_controllers; i++) { - ret = led_nu801_create_chain(&pdata->template[i], - &controllers[i], - &pdev->dev); - if (ret < 0) - goto err; - } - - platform_set_drvdata(pdev, controllers); - - return 0; - -err: - for (i = i - 1; i >= 0; i--) - led_nu801_delete_chain(&controllers[i]); - - kfree(controllers); - - return ret; -} - -static int led_nu801_remove(struct platform_device *pdev) -{ - int i; - struct led_nu801_platform_data *pdata = pdev->dev.platform_data; - struct led_nu801_data *controllers; - - controllers = platform_get_drvdata(pdev); - - for (i = 0; i < pdata->num_controllers; i++) - led_nu801_delete_chain(&controllers[i]); - - kfree(controllers); - - return 0; -} - -static const struct of_device_id of_numen_leds_match[] = { - { .compatible = "numen,leds-nu801", }, - {}, -}; -MODULE_DEVICE_TABLE(of, of_pwm_leds_match); - -static struct platform_driver led_nu801_driver = { - .probe = led_nu801_probe, - .remove = led_nu801_remove, - .driver = { - .name = "leds-nu801", - .owner = THIS_MODULE, - .of_match_table = of_numen_leds_match, - }, -}; - -static int __init led_nu801_init(void) -{ - return platform_driver_register(&led_nu801_driver); -} - -static void __exit led_nu801_exit(void) -{ - platform_driver_unregister(&led_nu801_driver); -} - -module_init(led_nu801_init); -module_exit(led_nu801_exit); - -MODULE_AUTHOR("Kevin Paul Herbert <kph@meraki.net>"); -MODULE_DESCRIPTION("NU801 LED driver"); -MODULE_LICENSE("GPL v2"); -MODULE_ALIAS("platform:leds-nu801"); diff --git a/target/linux/ar71xx/files/drivers/leds/leds-rb750.c b/target/linux/ar71xx/files/drivers/leds/leds-rb750.c deleted file mode 100644 index 79e98b4882..0000000000 --- a/target/linux/ar71xx/files/drivers/leds/leds-rb750.c +++ /dev/null @@ -1,144 +0,0 @@ -/* - * LED driver for the RouterBOARD 750 - * - * Copyright (C) 2010 Gabor Juhos <juhosg@openwrt.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - */ -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/init.h> -#include <linux/platform_device.h> -#include <linux/leds.h> -#include <linux/slab.h> - -#include <asm/mach-ath79/mach-rb750.h> - -#define DRV_NAME "leds-rb750" - -struct rb750_led_dev { - struct led_classdev cdev; - u32 mask; - int active_low; - void (*latch_change)(u32 clear, u32 set); -}; - -struct rb750_led_drvdata { - struct rb750_led_dev *led_devs; - int num_leds; -}; - -static inline struct rb750_led_dev *to_rbled(struct led_classdev *led_cdev) -{ - return (struct rb750_led_dev *)container_of(led_cdev, - struct rb750_led_dev, cdev); -} - -static void rb750_led_brightness_set(struct led_classdev *led_cdev, - enum led_brightness value) -{ - struct rb750_led_dev *rbled = to_rbled(led_cdev); - int level; - - level = (value == LED_OFF) ? 0 : 1; - level ^= rbled->active_low; - - if (level) - rbled->latch_change(0, rbled->mask); - else - rbled->latch_change(rbled->mask, 0); -} - -static int rb750_led_probe(struct platform_device *pdev) -{ - struct rb750_led_platform_data *pdata; - struct rb750_led_drvdata *drvdata; - int ret = 0; - int i; - - pdata = pdev->dev.platform_data; - if (!pdata) - return -EINVAL; - - drvdata = kzalloc(sizeof(struct rb750_led_drvdata) + - sizeof(struct rb750_led_dev) * pdata->num_leds, - GFP_KERNEL); - if (!drvdata) - return -ENOMEM; - - drvdata->num_leds = pdata->num_leds; - drvdata->led_devs = (struct rb750_led_dev *) &drvdata[1]; - - for (i = 0; i < drvdata->num_leds; i++) { - struct rb750_led_dev *rbled = &drvdata->led_devs[i]; - struct rb750_led_data *led_data = &pdata->leds[i]; - - rbled->cdev.name = led_data->name; - rbled->cdev.default_trigger = led_data->default_trigger; - rbled->cdev.brightness_set = rb750_led_brightness_set; - rbled->cdev.brightness = LED_OFF; - - rbled->mask = led_data->mask; - rbled->active_low = !!led_data->active_low; - rbled->latch_change = pdata->latch_change; - - ret = led_classdev_register(&pdev->dev, &rbled->cdev); - if (ret) - goto err; - } - - platform_set_drvdata(pdev, drvdata); - return 0; - -err: - for (i = i - 1; i >= 0; i--) - led_classdev_unregister(&drvdata->led_devs[i].cdev); - - kfree(drvdata); - return ret; -} - -static int rb750_led_remove(struct platform_device *pdev) -{ - struct rb750_led_drvdata *drvdata; - int i; - - drvdata = platform_get_drvdata(pdev); - for (i = 0; i < drvdata->num_leds; i++) - led_classdev_unregister(&drvdata->led_devs[i].cdev); - - kfree(drvdata); - return 0; -} - -static struct platform_driver rb750_led_driver = { - .probe = rb750_led_probe, - .remove = rb750_led_remove, - .driver = { - .name = DRV_NAME, - .owner = THIS_MODULE, - }, -}; - -MODULE_ALIAS("platform:leds-rb750"); - -static int __init rb750_led_init(void) -{ - return platform_driver_register(&rb750_led_driver); -} - -static void __exit rb750_led_exit(void) -{ - platform_driver_unregister(&rb750_led_driver); -} - -module_init(rb750_led_init); -module_exit(rb750_led_exit); - -MODULE_DESCRIPTION(DRV_NAME); -MODULE_DESCRIPTION("LED driver for the RouterBOARD 750"); -MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>"); -MODULE_LICENSE("GPL v2"); diff --git a/target/linux/ar71xx/files/drivers/leds/leds-wndr3700-usb.c b/target/linux/ar71xx/files/drivers/leds/leds-wndr3700-usb.c deleted file mode 100644 index 6425b055da..0000000000 --- a/target/linux/ar71xx/files/drivers/leds/leds-wndr3700-usb.c +++ /dev/null @@ -1,76 +0,0 @@ -/* - * USB LED driver for the NETGEAR WNDR3700 - * - * Copyright (C) 2009 Gabor Juhos <juhosg@openwrt.org> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation. - */ - -#include <linux/leds.h> -#include <linux/module.h> -#include <linux/platform_device.h> - -#include <asm/mach-ath79/ar71xx_regs.h> -#include <asm/mach-ath79/ath79.h> - -#define DRIVER_NAME "wndr3700-led-usb" - -static void wndr3700_usb_led_set(struct led_classdev *cdev, - enum led_brightness brightness) -{ - if (brightness) - ath79_device_reset_clear(AR71XX_RESET_GE1_PHY); - else - ath79_device_reset_set(AR71XX_RESET_GE1_PHY); -} - -static enum led_brightness wndr3700_usb_led_get(struct led_classdev *cdev) -{ - return ath79_device_reset_get(AR71XX_RESET_GE1_PHY) ? LED_OFF : LED_FULL; -} - -static struct led_classdev wndr3700_usb_led = { - .name = "netgear:green:usb", - .brightness_set = wndr3700_usb_led_set, - .brightness_get = wndr3700_usb_led_get, -}; - -static int wndr3700_usb_led_probe(struct platform_device *pdev) -{ - return led_classdev_register(&pdev->dev, &wndr3700_usb_led); -} - -static int wndr3700_usb_led_remove(struct platform_device *pdev) -{ - led_classdev_unregister(&wndr3700_usb_led); - return 0; -} - -static struct platform_driver wndr3700_usb_led_driver = { - .probe = wndr3700_usb_led_probe, - .remove = wndr3700_usb_led_remove, - .driver = { - .name = DRIVER_NAME, - .owner = THIS_MODULE, - }, -}; - -static int __init wndr3700_usb_led_init(void) -{ - return platform_driver_register(&wndr3700_usb_led_driver); -} - -static void __exit wndr3700_usb_led_exit(void) -{ - platform_driver_unregister(&wndr3700_usb_led_driver); -} - -module_init(wndr3700_usb_led_init); -module_exit(wndr3700_usb_led_exit); - -MODULE_DESCRIPTION("USB LED driver for the NETGEAR WNDR3700"); -MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>"); -MODULE_LICENSE("GPL v2"); -MODULE_ALIAS("platform:" DRIVER_NAME); diff --git a/target/linux/ar71xx/files/drivers/mtd/cybertan_part.c b/target/linux/ar71xx/files/drivers/mtd/cybertan_part.c deleted file mode 100644 index 4d33c19b7e..0000000000 --- a/target/linux/ar71xx/files/drivers/mtd/cybertan_part.c +++ /dev/null @@ -1,206 +0,0 @@ -/* - * Copyright (C) 2009 Christian Daniel <cd@maintech.de> - * Copyright (C) 2009 Gabor Juhos <juhosg@openwrt.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - * - * TRX flash partition table. - * Based on ar7 map by Felix Fietkau <nbd@nbd.name> - * - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/slab.h> -#include <linux/vmalloc.h> - -#include <linux/mtd/mtd.h> -#include <linux/mtd/partitions.h> -#include <linux/version.h> - -struct cybertan_header { - char magic[4]; - u8 res1[4]; - char fw_date[3]; - char fw_ver[3]; - char id[4]; - char hw_ver; - char unused; - u8 flags[2]; - u8 res2[10]; -}; - -#define TRX_PARTS 6 -#define TRX_MAGIC 0x30524448 -#define TRX_MAX_OFFSET 3 - -struct trx_header { - uint32_t magic; /* "HDR0" */ - uint32_t len; /* Length of file including header */ - uint32_t crc32; /* 32-bit CRC from flag_version to end of file */ - uint32_t flag_version; /* 0:15 flags, 16:31 version */ - uint32_t offsets[TRX_MAX_OFFSET]; /* Offsets of partitions from start of header */ -}; - -#define IH_MAGIC 0x27051956 /* Image Magic Number */ -#define IH_NMLEN 32 /* Image Name Length */ - -struct uimage_header { - uint32_t ih_magic; /* Image Header Magic Number */ - uint32_t ih_hcrc; /* Image Header CRC Checksum */ - uint32_t ih_time; /* Image Creation Timestamp */ - uint32_t ih_size; /* Image Data Size */ - uint32_t ih_load; /* Data» Load Address */ - uint32_t ih_ep; /* Entry Point Address */ - uint32_t ih_dcrc; /* Image Data CRC Checksum */ - uint8_t ih_os; /* Operating System */ - uint8_t ih_arch; /* CPU architecture */ - uint8_t ih_type; /* Image Type */ - uint8_t ih_comp; /* Compression Type */ - uint8_t ih_name[IH_NMLEN]; /* Image Name */ -}; - -struct firmware_header { - struct cybertan_header cybertan; - struct trx_header trx; - struct uimage_header uimage; -} __packed; - -#define UBOOT_LEN 0x40000 -#define ART_LEN 0x10000 -#define NVRAM_LEN 0x10000 - -static int cybertan_parse_partitions(struct mtd_info *master, -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,5,0) - struct mtd_partition **pparts, -#else - const struct mtd_partition **pparts, -#endif - struct mtd_part_parser_data *data) -{ - struct firmware_header *header; - struct trx_header *theader; - struct uimage_header *uheader; - struct mtd_partition *trx_parts; - size_t retlen; - unsigned int kernel_len; - unsigned int uboot_len; - unsigned int nvram_len; - unsigned int art_len; - int ret; - - uboot_len = max_t(unsigned int, master->erasesize, UBOOT_LEN); - nvram_len = max_t(unsigned int, master->erasesize, NVRAM_LEN); - art_len = max_t(unsigned int, master->erasesize, ART_LEN); - - trx_parts = kzalloc(TRX_PARTS * sizeof(struct mtd_partition), - GFP_KERNEL); - if (!trx_parts) { - ret = -ENOMEM; - goto out; - } - - header = vmalloc(sizeof(*header)); - if (!header) { - return -ENOMEM; - goto free_parts; - } - - ret = mtd_read(master, uboot_len, sizeof(*header), - &retlen, (void *) header); - if (ret) - goto free_hdr; - - if (retlen != sizeof(*header)) { - ret = -EIO; - goto free_hdr; - } - - theader = &header->trx; - if (le32_to_cpu(theader->magic) != TRX_MAGIC) { - printk(KERN_NOTICE "%s: no TRX header found\n", master->name); - goto free_hdr; - } - - uheader = &header->uimage; - if (uheader->ih_magic != IH_MAGIC) { - printk(KERN_NOTICE "%s: no uImage found\n", master->name); - goto free_hdr; - } - - kernel_len = le32_to_cpu(theader->offsets[1]) + - sizeof(struct cybertan_header); - - trx_parts[0].name = "u-boot"; - trx_parts[0].offset = 0; - trx_parts[0].size = uboot_len; - trx_parts[0].mask_flags = MTD_WRITEABLE; - - trx_parts[1].name = "kernel"; - trx_parts[1].offset = trx_parts[0].offset + trx_parts[0].size; - trx_parts[1].size = kernel_len; - trx_parts[1].mask_flags = 0; - - trx_parts[2].name = "rootfs"; - trx_parts[2].offset = trx_parts[1].offset + trx_parts[1].size; - trx_parts[2].size = master->size - uboot_len - nvram_len - art_len - - trx_parts[1].size; - trx_parts[2].mask_flags = 0; - - trx_parts[3].name = "nvram"; - trx_parts[3].offset = master->size - nvram_len - art_len; - trx_parts[3].size = nvram_len; - trx_parts[3].mask_flags = MTD_WRITEABLE; - - trx_parts[4].name = "art"; - trx_parts[4].offset = master->size - art_len; - trx_parts[4].size = art_len; - trx_parts[4].mask_flags = MTD_WRITEABLE; - - trx_parts[5].name = "firmware"; - trx_parts[5].offset = uboot_len; - trx_parts[5].size = master->size - uboot_len - nvram_len - art_len; - trx_parts[5].mask_flags = 0; - - vfree(header); - - *pparts = trx_parts; - return TRX_PARTS; - -free_hdr: - vfree(header); -free_parts: - kfree(trx_parts); -out: - return ret; -} - -static struct mtd_part_parser cybertan_parser = { - .owner = THIS_MODULE, - .parse_fn = cybertan_parse_partitions, - .name = "cybertan", -}; - -static int __init cybertan_parser_init(void) -{ - register_mtd_parser(&cybertan_parser); - - return 0; -} - -module_init(cybertan_parser_init); - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Christian Daniel <cd@maintech.de>"); diff --git a/target/linux/ar71xx/files/drivers/mtd/nand/ar934x_nfc.c b/target/linux/ar71xx/files/drivers/mtd/nand/ar934x_nfc.c deleted file mode 100644 index 2e25c6b885..0000000000 --- a/target/linux/ar71xx/files/drivers/mtd/nand/ar934x_nfc.c +++ /dev/null @@ -1,1591 +0,0 @@ -/* - * Driver for the built-in NAND controller of the Atheros AR934x SoCs - * - * Copyright (C) 2011-2013 Gabor Juhos <juhosg@openwrt.org> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation. - */ - -#include <linux/version.h> -#include <linux/init.h> -#include <linux/interrupt.h> -#include <linux/module.h> -#include <linux/dma-mapping.h> -#include <linux/mtd/mtd.h> -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,14,0) -#include <linux/mtd/nand.h> -#else -#include <linux/mtd/rawnand.h> -#endif -#include <linux/mtd/partitions.h> -#include <linux/platform_device.h> -#include <linux/delay.h> -#include <linux/slab.h> - -#include <linux/platform/ar934x_nfc.h> - -#define AR934X_NFC_REG_CMD 0x00 -#define AR934X_NFC_REG_CTRL 0x04 -#define AR934X_NFC_REG_STATUS 0x08 -#define AR934X_NFC_REG_INT_MASK 0x0c -#define AR934X_NFC_REG_INT_STATUS 0x10 -#define AR934X_NFC_REG_ECC_CTRL 0x14 -#define AR934X_NFC_REG_ECC_OFFSET 0x18 -#define AR934X_NFC_REG_ADDR0_0 0x1c -#define AR934X_NFC_REG_ADDR0_1 0x24 -#define AR934X_NFC_REG_ADDR1_0 0x20 -#define AR934X_NFC_REG_ADDR1_1 0x28 -#define AR934X_NFC_REG_SPARE_SIZE 0x30 -#define AR934X_NFC_REG_PROTECT 0x38 -#define AR934X_NFC_REG_LOOKUP_EN 0x40 -#define AR934X_NFC_REG_LOOKUP(_x) (0x44 + (_i) * 4) -#define AR934X_NFC_REG_DMA_ADDR 0x64 -#define AR934X_NFC_REG_DMA_COUNT 0x68 -#define AR934X_NFC_REG_DMA_CTRL 0x6c -#define AR934X_NFC_REG_MEM_CTRL 0x80 -#define AR934X_NFC_REG_DATA_SIZE 0x84 -#define AR934X_NFC_REG_READ_STATUS 0x88 -#define AR934X_NFC_REG_TIME_SEQ 0x8c -#define AR934X_NFC_REG_TIMINGS_ASYN 0x90 -#define AR934X_NFC_REG_TIMINGS_SYN 0x94 -#define AR934X_NFC_REG_FIFO_DATA 0x98 -#define AR934X_NFC_REG_TIME_MODE 0x9c -#define AR934X_NFC_REG_DMA_ADDR_OFFS 0xa0 -#define AR934X_NFC_REG_FIFO_INIT 0xb0 -#define AR934X_NFC_REG_GEN_SEQ_CTRL 0xb4 - -#define AR934X_NFC_CMD_CMD_SEQ_S 0 -#define AR934X_NFC_CMD_CMD_SEQ_M 0x3f -#define AR934X_NFC_CMD_SEQ_1C 0x00 -#define AR934X_NFC_CMD_SEQ_ERASE 0x0e -#define AR934X_NFC_CMD_SEQ_12 0x0c -#define AR934X_NFC_CMD_SEQ_1C1AXR 0x21 -#define AR934X_NFC_CMD_SEQ_S 0x24 -#define AR934X_NFC_CMD_SEQ_1C3AXR 0x27 -#define AR934X_NFC_CMD_SEQ_1C5A1CXR 0x2a -#define AR934X_NFC_CMD_SEQ_18 0x32 -#define AR934X_NFC_CMD_INPUT_SEL_SIU 0 -#define AR934X_NFC_CMD_INPUT_SEL_DMA BIT(6) -#define AR934X_NFC_CMD_ADDR_SEL_0 0 -#define AR934X_NFC_CMD_ADDR_SEL_1 BIT(7) -#define AR934X_NFC_CMD_CMD0_S 8 -#define AR934X_NFC_CMD_CMD0_M 0xff -#define AR934X_NFC_CMD_CMD1_S 16 -#define AR934X_NFC_CMD_CMD1_M 0xff -#define AR934X_NFC_CMD_CMD2_S 24 -#define AR934X_NFC_CMD_CMD2_M 0xff - -#define AR934X_NFC_CTRL_ADDR_CYCLE0_M 0x7 -#define AR934X_NFC_CTRL_ADDR_CYCLE0_S 0 -#define AR934X_NFC_CTRL_SPARE_EN BIT(3) -#define AR934X_NFC_CTRL_INT_EN BIT(4) -#define AR934X_NFC_CTRL_ECC_EN BIT(5) -#define AR934X_NFC_CTRL_BLOCK_SIZE_S 6 -#define AR934X_NFC_CTRL_BLOCK_SIZE_M 0x3 -#define AR934X_NFC_CTRL_BLOCK_SIZE_32 0 -#define AR934X_NFC_CTRL_BLOCK_SIZE_64 1 -#define AR934X_NFC_CTRL_BLOCK_SIZE_128 2 -#define AR934X_NFC_CTRL_BLOCK_SIZE_256 3 -#define AR934X_NFC_CTRL_PAGE_SIZE_S 8 -#define AR934X_NFC_CTRL_PAGE_SIZE_M 0x7 -#define AR934X_NFC_CTRL_PAGE_SIZE_256 0 -#define AR934X_NFC_CTRL_PAGE_SIZE_512 1 -#define AR934X_NFC_CTRL_PAGE_SIZE_1024 2 -#define AR934X_NFC_CTRL_PAGE_SIZE_2048 3 -#define AR934X_NFC_CTRL_PAGE_SIZE_4096 4 -#define AR934X_NFC_CTRL_PAGE_SIZE_8192 5 -#define AR934X_NFC_CTRL_PAGE_SIZE_16384 6 -#define AR934X_NFC_CTRL_CUSTOM_SIZE_EN BIT(11) -#define AR934X_NFC_CTRL_IO_WIDTH_8BITS 0 -#define AR934X_NFC_CTRL_IO_WIDTH_16BITS BIT(12) -#define AR934X_NFC_CTRL_LOOKUP_EN BIT(13) -#define AR934X_NFC_CTRL_PROT_EN BIT(14) -#define AR934X_NFC_CTRL_WORK_MODE_ASYNC 0 -#define AR934X_NFC_CTRL_WORK_MODE_SYNC BIT(15) -#define AR934X_NFC_CTRL_ADDR0_AUTO_INC BIT(16) -#define AR934X_NFC_CTRL_ADDR1_AUTO_INC BIT(17) -#define AR934X_NFC_CTRL_ADDR_CYCLE1_M 0x7 -#define AR934X_NFC_CTRL_ADDR_CYCLE1_S 18 -#define AR934X_NFC_CTRL_SMALL_PAGE BIT(21) - -#define AR934X_NFC_DMA_CTRL_DMA_START BIT(7) -#define AR934X_NFC_DMA_CTRL_DMA_DIR_WRITE 0 -#define AR934X_NFC_DMA_CTRL_DMA_DIR_READ BIT(6) -#define AR934X_NFC_DMA_CTRL_DMA_MODE_SG BIT(5) -#define AR934X_NFC_DMA_CTRL_DMA_BURST_S 2 -#define AR934X_NFC_DMA_CTRL_DMA_BURST_0 0 -#define AR934X_NFC_DMA_CTRL_DMA_BURST_1 1 -#define AR934X_NFC_DMA_CTRL_DMA_BURST_2 2 -#define AR934X_NFC_DMA_CTRL_DMA_BURST_3 3 -#define AR934X_NFC_DMA_CTRL_DMA_BURST_4 4 -#define AR934X_NFC_DMA_CTRL_DMA_BURST_5 5 -#define AR934X_NFC_DMA_CTRL_ERR_FLAG BIT(1) -#define AR934X_NFC_DMA_CTRL_DMA_READY BIT(0) - -#define AR934X_NFC_INT_DEV_RDY(_x) BIT(4 + (_x)) -#define AR934X_NFC_INT_CMD_END BIT(1) - -#define AR934X_NFC_ECC_CTRL_ERR_THRES_S 8 -#define AR934X_NFC_ECC_CTRL_ERR_THRES_M 0x1f -#define AR934X_NFC_ECC_CTRL_ECC_CAP_S 5 -#define AR934X_NFC_ECC_CTRL_ECC_CAP_M 0x7 -#define AR934X_NFC_ECC_CTRL_ECC_CAP_2 0 -#define AR934X_NFC_ECC_CTRL_ECC_CAP_4 1 -#define AR934X_NFC_ECC_CTRL_ECC_CAP_6 2 -#define AR934X_NFC_ECC_CTRL_ECC_CAP_8 3 -#define AR934X_NFC_ECC_CTRL_ECC_CAP_10 4 -#define AR934X_NFC_ECC_CTRL_ECC_CAP_12 5 -#define AR934X_NFC_ECC_CTRL_ECC_CAP_14 6 -#define AR934X_NFC_ECC_CTRL_ECC_CAP_16 7 -#define AR934X_NFC_ECC_CTRL_ERR_OVER BIT(2) -#define AR934X_NFC_ECC_CTRL_ERR_UNCORRECT BIT(1) -#define AR934X_NFC_ECC_CTRL_ERR_CORRECT BIT(0) - -#define AR934X_NFC_ECC_OFFS_OFSET_M 0xffff - -/* default timing values */ -#define AR934X_NFC_TIME_SEQ_DEFAULT 0x7fff -#define AR934X_NFC_TIMINGS_ASYN_DEFAULT 0x22 -#define AR934X_NFC_TIMINGS_SYN_DEFAULT 0xf - -#define AR934X_NFC_ID_BUF_SIZE 8 -#define AR934X_NFC_DEV_READY_TIMEOUT 25 /* msecs */ -#define AR934X_NFC_DMA_READY_TIMEOUT 25 /* msecs */ -#define AR934X_NFC_DONE_TIMEOUT 1000 -#define AR934X_NFC_DMA_RETRIES 20 - -#define AR934X_NFC_USE_IRQ true -#define AR934X_NFC_IRQ_MASK AR934X_NFC_INT_DEV_RDY(0) - -#define AR934X_NFC_GENSEQ_SMALL_PAGE_READ 0x30043 - -#undef AR934X_NFC_DEBUG_DATA -#undef AR934X_NFC_DEBUG - -struct ar934x_nfc; - -static inline __attribute__ ((format (printf, 2, 3))) -void _nfc_dbg(struct ar934x_nfc *nfc, const char *fmt, ...) -{ -} - -#ifdef AR934X_NFC_DEBUG -#define nfc_dbg(_nfc, fmt, ...) \ - dev_info((_nfc)->parent, fmt, ##__VA_ARGS__) -#else -#define nfc_dbg(_nfc, fmt, ...) \ - _nfc_dbg((_nfc), fmt, ##__VA_ARGS__) -#endif /* AR934X_NFC_DEBUG */ - -#ifdef AR934X_NFC_DEBUG_DATA -static void -nfc_debug_data(const char *label, void *data, int len) -{ - print_hex_dump(KERN_WARNING, label, DUMP_PREFIX_OFFSET, 16, 1, - data, len, 0); -} -#else -static inline void -nfc_debug_data(const char *label, void *data, int len) {} -#endif /* AR934X_NFC_DEBUG_DATA */ - -struct ar934x_nfc { -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0) - struct mtd_info mtd; -#endif - struct nand_chip nand_chip; - struct device *parent; - void __iomem *base; - void (*select_chip)(int chip_no); - bool swap_dma; - int irq; - wait_queue_head_t irq_waitq; - - bool spurious_irq_expected; - u32 irq_status; - - u32 ctrl_reg; - u32 ecc_ctrl_reg; - u32 ecc_offset_reg; - u32 ecc_thres; - u32 ecc_oob_pos; - - bool small_page; - unsigned int addr_count0; - unsigned int addr_count1; - - u8 *buf; - dma_addr_t buf_dma; - unsigned int buf_size; - int buf_index; - - bool read_id; - - int erase1_page_addr; - - int rndout_page_addr; - int rndout_read_cmd; - - int seqin_page_addr; - int seqin_column; - int seqin_read_cmd; -}; - -static void ar934x_nfc_restart(struct ar934x_nfc *nfc); - -static inline bool -is_all_ff(u8 *buf, int len) -{ - while (len--) - if (buf[len] != 0xff) - return false; - - return true; -} - -static inline void -ar934x_nfc_wr(struct ar934x_nfc *nfc, unsigned reg, u32 val) -{ - __raw_writel(val, nfc->base + reg); -} - -static inline u32 -ar934x_nfc_rr(struct ar934x_nfc *nfc, unsigned reg) -{ - return __raw_readl(nfc->base + reg); -} - -static inline struct ar934x_nfc_platform_data * -ar934x_nfc_get_platform_data(struct ar934x_nfc *nfc) -{ - return nfc->parent->platform_data; -} - -static inline struct -ar934x_nfc *mtd_to_ar934x_nfc(struct mtd_info *mtd) -{ -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0) - return container_of(mtd, struct ar934x_nfc, mtd); -#else - struct nand_chip *chip = mtd_to_nand(mtd); - - return container_of(chip, struct ar934x_nfc, nand_chip); -#endif -} - -static struct mtd_info *ar934x_nfc_to_mtd(struct ar934x_nfc *nfc) -{ -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0) - return &nfc->mtd; -#else - return nand_to_mtd(&nfc->nand_chip); -#endif -} - -static inline bool ar934x_nfc_use_irq(struct ar934x_nfc *nfc) -{ - return AR934X_NFC_USE_IRQ; -} - -static inline void ar934x_nfc_write_cmd_reg(struct ar934x_nfc *nfc, u32 cmd_reg) -{ - wmb(); - - ar934x_nfc_wr(nfc, AR934X_NFC_REG_CMD, cmd_reg); - /* flush write */ - ar934x_nfc_rr(nfc, AR934X_NFC_REG_CMD); -} - -static bool -__ar934x_nfc_dev_ready(struct ar934x_nfc *nfc) -{ - u32 status; - - status = ar934x_nfc_rr(nfc, AR934X_NFC_REG_STATUS); - return (status & 0xff) == 0xff; -} - -static inline bool -__ar934x_nfc_is_dma_ready(struct ar934x_nfc *nfc) -{ - u32 status; - - status = ar934x_nfc_rr(nfc, AR934X_NFC_REG_DMA_CTRL); - return (status & AR934X_NFC_DMA_CTRL_DMA_READY) != 0; -} - -static int -ar934x_nfc_wait_dev_ready(struct ar934x_nfc *nfc) -{ - unsigned long timeout; - - timeout = jiffies + msecs_to_jiffies(AR934X_NFC_DEV_READY_TIMEOUT); - do { - if (__ar934x_nfc_dev_ready(nfc)) - return 0; - } while time_before(jiffies, timeout); - - nfc_dbg(nfc, "timeout waiting for device ready, status:%08x int:%08x\n", - ar934x_nfc_rr(nfc, AR934X_NFC_REG_STATUS), - ar934x_nfc_rr(nfc, AR934X_NFC_REG_INT_STATUS)); - return -ETIMEDOUT; -} - -static int -ar934x_nfc_wait_dma_ready(struct ar934x_nfc *nfc) -{ - unsigned long timeout; - - timeout = jiffies + msecs_to_jiffies(AR934X_NFC_DMA_READY_TIMEOUT); - do { - if (__ar934x_nfc_is_dma_ready(nfc)) - return 0; - } while time_before(jiffies, timeout); - - nfc_dbg(nfc, "timeout waiting for DMA ready, dma_ctrl:%08x\n", - ar934x_nfc_rr(nfc, AR934X_NFC_REG_DMA_CTRL)); - return -ETIMEDOUT; -} - -static int -ar934x_nfc_wait_irq(struct ar934x_nfc *nfc) -{ - long timeout; - int ret; - - timeout = wait_event_timeout(nfc->irq_waitq, - (nfc->irq_status & AR934X_NFC_IRQ_MASK) != 0, - msecs_to_jiffies(AR934X_NFC_DEV_READY_TIMEOUT)); - - ret = 0; - if (!timeout) { - ar934x_nfc_wr(nfc, AR934X_NFC_REG_INT_MASK, 0); - ar934x_nfc_wr(nfc, AR934X_NFC_REG_INT_STATUS, 0); - /* flush write */ - ar934x_nfc_rr(nfc, AR934X_NFC_REG_INT_STATUS); - - nfc_dbg(nfc, - "timeout waiting for interrupt, status:%08x\n", - nfc->irq_status); - ret = -ETIMEDOUT; - } - - nfc->irq_status = 0; - return ret; -} - -static int -ar934x_nfc_wait_done(struct ar934x_nfc *nfc) -{ - int ret; - - if (ar934x_nfc_use_irq(nfc)) - ret = ar934x_nfc_wait_irq(nfc); - else - ret = ar934x_nfc_wait_dev_ready(nfc); - - if (ret) - return ret; - - return ar934x_nfc_wait_dma_ready(nfc); -} - -static int -ar934x_nfc_alloc_buf(struct ar934x_nfc *nfc, unsigned size) -{ - nfc->buf = dma_alloc_coherent(nfc->parent, size, - &nfc->buf_dma, GFP_KERNEL); - if (nfc->buf == NULL) { - dev_err(nfc->parent, "no memory for DMA buffer\n"); - return -ENOMEM; - } - - nfc->buf_size = size; - nfc_dbg(nfc, "buf:%p size:%u\n", nfc->buf, nfc->buf_size); - - return 0; -} - -static void -ar934x_nfc_free_buf(struct ar934x_nfc *nfc) -{ - dma_free_coherent(nfc->parent, nfc->buf_size, nfc->buf, nfc->buf_dma); -} - -static void -ar934x_nfc_get_addr(struct ar934x_nfc *nfc, int column, int page_addr, - u32 *addr0, u32 *addr1) -{ - u32 a0, a1; - - a0 = 0; - a1 = 0; - - if (column == -1) { - /* ERASE1 */ - a0 = (page_addr & 0xffff) << 16; - a1 = (page_addr >> 16) & 0xf; - } else if (page_addr != -1) { - /* SEQIN, READ0, etc.. */ - - /* TODO: handle 16bit bus width */ - if (nfc->small_page) { - a0 = column & 0xff; - a0 |= (page_addr & 0xff) << 8; - a0 |= ((page_addr >> 8) & 0xff) << 16; - a0 |= ((page_addr >> 16) & 0xff) << 24; - } else { - a0 = column & 0x0FFF; - a0 |= (page_addr & 0xffff) << 16; - - if (nfc->addr_count0 > 4) - a1 = (page_addr >> 16) & 0xf; - } - } - - *addr0 = a0; - *addr1 = a1; -} - -static void -ar934x_nfc_send_cmd(struct ar934x_nfc *nfc, unsigned command) -{ - u32 cmd_reg; - - cmd_reg = AR934X_NFC_CMD_INPUT_SEL_SIU | AR934X_NFC_CMD_ADDR_SEL_0 | - AR934X_NFC_CMD_SEQ_1C; - cmd_reg |= (command & AR934X_NFC_CMD_CMD0_M) << AR934X_NFC_CMD_CMD0_S; - - ar934x_nfc_wr(nfc, AR934X_NFC_REG_INT_STATUS, 0); - ar934x_nfc_wr(nfc, AR934X_NFC_REG_CTRL, nfc->ctrl_reg); - - ar934x_nfc_write_cmd_reg(nfc, cmd_reg); - ar934x_nfc_wait_dev_ready(nfc); -} - -static int -ar934x_nfc_do_rw_command(struct ar934x_nfc *nfc, int column, int page_addr, - int len, u32 cmd_reg, u32 ctrl_reg, bool write) -{ - u32 addr0, addr1; - u32 dma_ctrl; - int dir; - int err; - int retries = 0; - - WARN_ON(len & 3); - - if (WARN_ON(len > nfc->buf_size)) - dev_err(nfc->parent, "len=%d > buf_size=%d", len, nfc->buf_size); - - if (write) { - dma_ctrl = AR934X_NFC_DMA_CTRL_DMA_DIR_WRITE; - dir = DMA_TO_DEVICE; - } else { - dma_ctrl = AR934X_NFC_DMA_CTRL_DMA_DIR_READ; - dir = DMA_FROM_DEVICE; - } - - ar934x_nfc_get_addr(nfc, column, page_addr, &addr0, &addr1); - - dma_ctrl |= AR934X_NFC_DMA_CTRL_DMA_START | - (AR934X_NFC_DMA_CTRL_DMA_BURST_3 << - AR934X_NFC_DMA_CTRL_DMA_BURST_S); - - cmd_reg |= AR934X_NFC_CMD_INPUT_SEL_DMA | AR934X_NFC_CMD_ADDR_SEL_0; - ctrl_reg |= AR934X_NFC_CTRL_INT_EN; - - nfc_dbg(nfc, "%s a0:%08x a1:%08x len:%x cmd:%08x dma:%08x ctrl:%08x\n", - (write) ? "write" : "read", - addr0, addr1, len, cmd_reg, dma_ctrl, ctrl_reg); - -retry: - ar934x_nfc_wr(nfc, AR934X_NFC_REG_INT_STATUS, 0); - ar934x_nfc_wr(nfc, AR934X_NFC_REG_ADDR0_0, addr0); - ar934x_nfc_wr(nfc, AR934X_NFC_REG_ADDR0_1, addr1); - ar934x_nfc_wr(nfc, AR934X_NFC_REG_DMA_ADDR, nfc->buf_dma); - ar934x_nfc_wr(nfc, AR934X_NFC_REG_DMA_COUNT, len); - ar934x_nfc_wr(nfc, AR934X_NFC_REG_DATA_SIZE, len); - ar934x_nfc_wr(nfc, AR934X_NFC_REG_CTRL, ctrl_reg); - ar934x_nfc_wr(nfc, AR934X_NFC_REG_DMA_CTRL, dma_ctrl); - ar934x_nfc_wr(nfc, AR934X_NFC_REG_ECC_CTRL, nfc->ecc_ctrl_reg); - ar934x_nfc_wr(nfc, AR934X_NFC_REG_ECC_OFFSET, nfc->ecc_offset_reg); - - if (ar934x_nfc_use_irq(nfc)) { - ar934x_nfc_wr(nfc, AR934X_NFC_REG_INT_MASK, AR934X_NFC_IRQ_MASK); - /* flush write */ - ar934x_nfc_rr(nfc, AR934X_NFC_REG_INT_MASK); - } - - ar934x_nfc_write_cmd_reg(nfc, cmd_reg); - err = ar934x_nfc_wait_done(nfc); - if (err) { - dev_dbg(nfc->parent, "%s operation stuck at page %d\n", - (write) ? "write" : "read", page_addr); - - ar934x_nfc_restart(nfc); - if (retries++ < AR934X_NFC_DMA_RETRIES) - goto retry; - - dev_err(nfc->parent, "%s operation failed on page %d\n", - (write) ? "write" : "read", page_addr); - } - - return err; -} - -static int -ar934x_nfc_send_readid(struct ar934x_nfc *nfc, unsigned command) -{ - u32 cmd_reg; - int err; - - nfc_dbg(nfc, "readid, cmd:%02x\n", command); - - cmd_reg = AR934X_NFC_CMD_SEQ_1C1AXR; - cmd_reg |= (command & AR934X_NFC_CMD_CMD0_M) << AR934X_NFC_CMD_CMD0_S; - - err = ar934x_nfc_do_rw_command(nfc, -1, -1, AR934X_NFC_ID_BUF_SIZE, - cmd_reg, nfc->ctrl_reg, false); - - nfc_debug_data("[id] ", nfc->buf, AR934X_NFC_ID_BUF_SIZE); - - return err; -} - -static int -ar934x_nfc_send_read(struct ar934x_nfc *nfc, unsigned command, int column, - int page_addr, int len) -{ - u32 cmd_reg; - int err; - - nfc_dbg(nfc, "read, column=%d page=%d len=%d\n", - column, page_addr, len); - - cmd_reg = (command & AR934X_NFC_CMD_CMD0_M) << AR934X_NFC_CMD_CMD0_S; - - if (nfc->small_page) { - cmd_reg |= AR934X_NFC_CMD_SEQ_18; - } else { - cmd_reg |= NAND_CMD_READSTART << AR934X_NFC_CMD_CMD1_S; - cmd_reg |= AR934X_NFC_CMD_SEQ_1C5A1CXR; - } - - err = ar934x_nfc_do_rw_command(nfc, column, page_addr, len, - cmd_reg, nfc->ctrl_reg, false); - - nfc_debug_data("[data] ", nfc->buf, len); - - return err; -} - -static void -ar934x_nfc_send_erase(struct ar934x_nfc *nfc, unsigned command, int column, - int page_addr) -{ - u32 addr0, addr1; - u32 ctrl_reg; - u32 cmd_reg; - - ar934x_nfc_get_addr(nfc, column, page_addr, &addr0, &addr1); - - ctrl_reg = nfc->ctrl_reg; - if (nfc->small_page) { - /* override number of address cycles for the erase command */ - ctrl_reg &= ~(AR934X_NFC_CTRL_ADDR_CYCLE0_M << - AR934X_NFC_CTRL_ADDR_CYCLE0_S); - ctrl_reg &= ~(AR934X_NFC_CTRL_ADDR_CYCLE1_M << - AR934X_NFC_CTRL_ADDR_CYCLE1_S); - ctrl_reg &= ~(AR934X_NFC_CTRL_SMALL_PAGE); - ctrl_reg |= (nfc->addr_count0 + 1) << - AR934X_NFC_CTRL_ADDR_CYCLE0_S; - } - - cmd_reg = NAND_CMD_ERASE1 << AR934X_NFC_CMD_CMD0_S; - cmd_reg |= command << AR934X_NFC_CMD_CMD1_S; - cmd_reg |= AR934X_NFC_CMD_SEQ_ERASE; - - nfc_dbg(nfc, "erase page %d, a0:%08x a1:%08x cmd:%08x ctrl:%08x\n", - page_addr, addr0, addr1, cmd_reg, ctrl_reg); - - ar934x_nfc_wr(nfc, AR934X_NFC_REG_INT_STATUS, 0); - ar934x_nfc_wr(nfc, AR934X_NFC_REG_CTRL, ctrl_reg); - ar934x_nfc_wr(nfc, AR934X_NFC_REG_ADDR0_0, addr0); - ar934x_nfc_wr(nfc, AR934X_NFC_REG_ADDR0_1, addr1); - - ar934x_nfc_write_cmd_reg(nfc, cmd_reg); - ar934x_nfc_wait_dev_ready(nfc); -} - -static int -ar934x_nfc_send_write(struct ar934x_nfc *nfc, unsigned command, int column, - int page_addr, int len) -{ - u32 cmd_reg; - - nfc_dbg(nfc, "write, column=%d page=%d len=%d\n", - column, page_addr, len); - - nfc_debug_data("[data] ", nfc->buf, len); - - cmd_reg = NAND_CMD_SEQIN << AR934X_NFC_CMD_CMD0_S; - cmd_reg |= command << AR934X_NFC_CMD_CMD1_S; - cmd_reg |= AR934X_NFC_CMD_SEQ_12; - - return ar934x_nfc_do_rw_command(nfc, column, page_addr, len, - cmd_reg, nfc->ctrl_reg, true); -} - -static void -ar934x_nfc_read_status(struct ar934x_nfc *nfc) -{ - u32 cmd_reg; - u32 status; - - cmd_reg = NAND_CMD_STATUS << AR934X_NFC_CMD_CMD0_S; - cmd_reg |= AR934X_NFC_CMD_SEQ_S; - - ar934x_nfc_wr(nfc, AR934X_NFC_REG_INT_STATUS, 0); - ar934x_nfc_wr(nfc, AR934X_NFC_REG_CTRL, nfc->ctrl_reg); - - ar934x_nfc_write_cmd_reg(nfc, cmd_reg); - ar934x_nfc_wait_dev_ready(nfc); - - status = ar934x_nfc_rr(nfc, AR934X_NFC_REG_READ_STATUS); - - nfc_dbg(nfc, "read status, cmd:%08x status:%02x\n", - cmd_reg, (status & 0xff)); - - if (nfc->swap_dma) - nfc->buf[0 ^ 3] = status; - else - nfc->buf[0] = status; -} - -static void -ar934x_nfc_cmdfunc(struct mtd_info *mtd, unsigned int command, int column, - int page_addr) -{ - struct ar934x_nfc *nfc = mtd_to_ar934x_nfc(mtd); - struct nand_chip *nand = &nfc->nand_chip; - - nfc->read_id = false; - if (command != NAND_CMD_PAGEPROG) - nfc->buf_index = 0; - - switch (command) { - case NAND_CMD_RESET: - ar934x_nfc_send_cmd(nfc, command); - break; - - case NAND_CMD_READID: - nfc->read_id = true; - ar934x_nfc_send_readid(nfc, command); - break; - - case NAND_CMD_READ0: - case NAND_CMD_READ1: - if (nfc->small_page) { - ar934x_nfc_send_read(nfc, command, column, page_addr, - mtd->writesize + mtd->oobsize); - } else { - ar934x_nfc_send_read(nfc, command, 0, page_addr, - mtd->writesize + mtd->oobsize); - nfc->buf_index = column; - nfc->rndout_page_addr = page_addr; - nfc->rndout_read_cmd = command; - } - break; - - case NAND_CMD_READOOB: - if (nfc->small_page) - ar934x_nfc_send_read(nfc, NAND_CMD_READOOB, - column, page_addr, - mtd->oobsize); - else - ar934x_nfc_send_read(nfc, NAND_CMD_READ0, - mtd->writesize, page_addr, - mtd->oobsize); - break; - - case NAND_CMD_RNDOUT: - if (WARN_ON(nfc->small_page)) - break; - - /* emulate subpage read */ - ar934x_nfc_send_read(nfc, nfc->rndout_read_cmd, 0, - nfc->rndout_page_addr, - mtd->writesize + mtd->oobsize); - nfc->buf_index = column; - break; - - case NAND_CMD_ERASE1: - nfc->erase1_page_addr = page_addr; - break; - - case NAND_CMD_ERASE2: - ar934x_nfc_send_erase(nfc, command, -1, nfc->erase1_page_addr); - break; - - case NAND_CMD_STATUS: - ar934x_nfc_read_status(nfc); - break; - - case NAND_CMD_SEQIN: - if (nfc->small_page) { - /* output read command */ - if (column >= mtd->writesize) { - column -= mtd->writesize; - nfc->seqin_read_cmd = NAND_CMD_READOOB; - } else if (column < 256) { - nfc->seqin_read_cmd = NAND_CMD_READ0; - } else { - column -= 256; - nfc->seqin_read_cmd = NAND_CMD_READ1; - } - } else { - nfc->seqin_read_cmd = NAND_CMD_READ0; - } - nfc->seqin_column = column; - nfc->seqin_page_addr = page_addr; - break; - - case NAND_CMD_PAGEPROG: - if (nand->ecc.mode == NAND_ECC_HW) { - /* the data is already written */ - break; - } - - if (nfc->small_page) - ar934x_nfc_send_cmd(nfc, nfc->seqin_read_cmd); - - ar934x_nfc_send_write(nfc, command, nfc->seqin_column, - nfc->seqin_page_addr, - nfc->buf_index); - break; - - default: - dev_err(nfc->parent, - "unsupported command: %x, column:%d page_addr=%d\n", - command, column, page_addr); - break; - } -} - -static int -ar934x_nfc_dev_ready(struct mtd_info *mtd) -{ - struct ar934x_nfc *nfc = mtd_to_ar934x_nfc(mtd); - - return __ar934x_nfc_dev_ready(nfc); -} - -static void -ar934x_nfc_select_chip(struct mtd_info *mtd, int chip_no) -{ - struct ar934x_nfc *nfc = mtd_to_ar934x_nfc(mtd); - - if (nfc->select_chip) - nfc->select_chip(chip_no); -} - -static u8 -ar934x_nfc_read_byte(struct mtd_info *mtd) -{ - struct ar934x_nfc *nfc = mtd_to_ar934x_nfc(mtd); - u8 data; - - WARN_ON(nfc->buf_index >= nfc->buf_size); - - if (nfc->swap_dma || nfc->read_id) - data = nfc->buf[nfc->buf_index ^ 3]; - else - data = nfc->buf[nfc->buf_index]; - - nfc->buf_index++; - - return data; -} - -static void -ar934x_nfc_write_buf(struct mtd_info *mtd, const u8 *buf, int len) -{ - struct ar934x_nfc *nfc = mtd_to_ar934x_nfc(mtd); - int i; - - WARN_ON(nfc->buf_index + len > nfc->buf_size); - - if (nfc->swap_dma) { - for (i = 0; i < len; i++) { - nfc->buf[nfc->buf_index ^ 3] = buf[i]; - nfc->buf_index++; - } - } else { - for (i = 0; i < len; i++) { - nfc->buf[nfc->buf_index] = buf[i]; - nfc->buf_index++; - } - } -} - -static void -ar934x_nfc_read_buf(struct mtd_info *mtd, u8 *buf, int len) -{ - struct ar934x_nfc *nfc = mtd_to_ar934x_nfc(mtd); - int buf_index; - int i; - - WARN_ON(nfc->buf_index + len > nfc->buf_size); - - buf_index = nfc->buf_index; - - if (nfc->swap_dma || nfc->read_id) { - for (i = 0; i < len; i++) { - buf[i] = nfc->buf[buf_index ^ 3]; - buf_index++; - } - } else { - for (i = 0; i < len; i++) { - buf[i] = nfc->buf[buf_index]; - buf_index++; - } - } - - nfc->buf_index = buf_index; -} - -static inline void -ar934x_nfc_enable_hwecc(struct ar934x_nfc *nfc) -{ - nfc->ctrl_reg |= AR934X_NFC_CTRL_ECC_EN; - nfc->ctrl_reg &= ~AR934X_NFC_CTRL_CUSTOM_SIZE_EN; -} - -static inline void -ar934x_nfc_disable_hwecc(struct ar934x_nfc *nfc) -{ - nfc->ctrl_reg &= ~AR934X_NFC_CTRL_ECC_EN; - nfc->ctrl_reg |= AR934X_NFC_CTRL_CUSTOM_SIZE_EN; -} - -static int -ar934x_nfc_read_oob(struct mtd_info *mtd, struct nand_chip *chip, - int page) -{ - struct ar934x_nfc *nfc = mtd_to_ar934x_nfc(mtd); - int err; - - nfc_dbg(nfc, "read_oob: page:%d\n", page); - - err = ar934x_nfc_send_read(nfc, NAND_CMD_READ0, mtd->writesize, page, - mtd->oobsize); - if (err) - return err; - - memcpy(chip->oob_poi, nfc->buf, mtd->oobsize); - - return 0; -} - -static int -ar934x_nfc_write_oob(struct mtd_info *mtd, struct nand_chip *chip, - int page) -{ - struct ar934x_nfc *nfc = mtd_to_ar934x_nfc(mtd); - - nfc_dbg(nfc, "write_oob: page:%d\n", page); - - memcpy(nfc->buf, chip->oob_poi, mtd->oobsize); - - return ar934x_nfc_send_write(nfc, NAND_CMD_PAGEPROG, mtd->writesize, - page, mtd->oobsize); -} - -static int -ar934x_nfc_read_page_raw(struct mtd_info *mtd, struct nand_chip *chip, - u8 *buf, int oob_required, int page) -{ - struct ar934x_nfc *nfc = mtd_to_ar934x_nfc(mtd); - int len; - int err; - - nfc_dbg(nfc, "read_page_raw: page:%d oob:%d\n", page, oob_required); - - len = mtd->writesize; - if (oob_required) - len += mtd->oobsize; - - err = ar934x_nfc_send_read(nfc, NAND_CMD_READ0, 0, page, len); - if (err) - return err; - - memcpy(buf, nfc->buf, mtd->writesize); - - if (oob_required) - memcpy(chip->oob_poi, &nfc->buf[mtd->writesize], mtd->oobsize); - - return 0; -} - -static int -ar934x_nfc_read_page(struct mtd_info *mtd, struct nand_chip *chip, - u8 *buf, int oob_required, int page) -{ - struct ar934x_nfc *nfc = mtd_to_ar934x_nfc(mtd); - u32 ecc_ctrl; - int max_bitflips = 0; - bool ecc_failed; - bool ecc_corrected; - int err; - - nfc_dbg(nfc, "read_page: page:%d oob:%d\n", page, oob_required); - - ar934x_nfc_enable_hwecc(nfc); - err = ar934x_nfc_send_read(nfc, NAND_CMD_READ0, 0, page, - mtd->writesize); - ar934x_nfc_disable_hwecc(nfc); - - if (err) - return err; - - /* TODO: optimize to avoid memcpy */ - memcpy(buf, nfc->buf, mtd->writesize); - - /* read the ECC status */ - ecc_ctrl = ar934x_nfc_rr(nfc, AR934X_NFC_REG_ECC_CTRL); - ecc_failed = ecc_ctrl & AR934X_NFC_ECC_CTRL_ERR_UNCORRECT; - ecc_corrected = ecc_ctrl & AR934X_NFC_ECC_CTRL_ERR_CORRECT; - - if (oob_required || ecc_failed) { - err = ar934x_nfc_send_read(nfc, NAND_CMD_READ0, mtd->writesize, - page, mtd->oobsize); - if (err) - return err; - - if (oob_required) - memcpy(chip->oob_poi, nfc->buf, mtd->oobsize); - } - - if (ecc_failed) { - /* - * The hardware ECC engine reports uncorrectable errors - * on empty pages. Check the ECC bytes and the data. If - * both contains 0xff bytes only, dont report a failure. - * - * TODO: prebuild a buffer with 0xff bytes and use memcmp - * for better performance? - */ - if (!is_all_ff(&nfc->buf[nfc->ecc_oob_pos], chip->ecc.total) || - !is_all_ff(buf, mtd->writesize)) - mtd->ecc_stats.failed++; - } else if (ecc_corrected) { - /* - * The hardware does not report the exact count of the - * corrected bitflips, use assumptions based on the - * threshold. - */ - if (ecc_ctrl & AR934X_NFC_ECC_CTRL_ERR_OVER) { - /* - * The number of corrected bitflips exceeds the - * threshold. Assume the maximum. - */ - max_bitflips = chip->ecc.strength * chip->ecc.steps; - } else { - max_bitflips = nfc->ecc_thres * chip->ecc.steps; - } - - mtd->ecc_stats.corrected += max_bitflips; - } - - return max_bitflips; -} - -static int -ar934x_nfc_write_page_raw(struct mtd_info *mtd, struct nand_chip *chip, - const u8 *buf, int oob_required, int page) -{ - struct ar934x_nfc *nfc = mtd_to_ar934x_nfc(mtd); - int len; - - nfc_dbg(nfc, "write_page_raw: page:%d oob:%d\n", page, oob_required); - - memcpy(nfc->buf, buf, mtd->writesize); - len = mtd->writesize; - - if (oob_required) { - memcpy(&nfc->buf[mtd->writesize], chip->oob_poi, mtd->oobsize); - len += mtd->oobsize; - } - - return ar934x_nfc_send_write(nfc, NAND_CMD_PAGEPROG, 0, page, len); -} - -static int -ar934x_nfc_write_page(struct mtd_info *mtd, struct nand_chip *chip, - const u8 *buf, int oob_required, int page) -{ - struct ar934x_nfc *nfc = mtd_to_ar934x_nfc(mtd); - int err; - - nfc_dbg(nfc, "write_page: page:%d oob:%d\n", page, oob_required); - - /* write OOB first */ - if (oob_required && - !is_all_ff(chip->oob_poi, mtd->oobsize)) { - err = ar934x_nfc_write_oob(mtd, chip, page); - if (err) - return err; - } - - /* TODO: optimize to avoid memcopy */ - memcpy(nfc->buf, buf, mtd->writesize); - - ar934x_nfc_enable_hwecc(nfc); - err = ar934x_nfc_send_write(nfc, NAND_CMD_PAGEPROG, 0, page, - mtd->writesize); - ar934x_nfc_disable_hwecc(nfc); - - return err; -} - -static void -ar934x_nfc_hw_init(struct ar934x_nfc *nfc) -{ - struct ar934x_nfc_platform_data *pdata; - - pdata = ar934x_nfc_get_platform_data(nfc); - if (pdata->hw_reset) { - pdata->hw_reset(true); - pdata->hw_reset(false); - } - - /* - * setup timings - * TODO: make it configurable via platform data - */ - ar934x_nfc_wr(nfc, AR934X_NFC_REG_TIME_SEQ, - AR934X_NFC_TIME_SEQ_DEFAULT); - ar934x_nfc_wr(nfc, AR934X_NFC_REG_TIMINGS_ASYN, - AR934X_NFC_TIMINGS_ASYN_DEFAULT); - ar934x_nfc_wr(nfc, AR934X_NFC_REG_TIMINGS_SYN, - AR934X_NFC_TIMINGS_SYN_DEFAULT); - - /* disable WP on all chips, and select chip 0 */ - ar934x_nfc_wr(nfc, AR934X_NFC_REG_MEM_CTRL, 0xff00); - - ar934x_nfc_wr(nfc, AR934X_NFC_REG_DMA_ADDR_OFFS, 0); - - /* initialize Control register */ - nfc->ctrl_reg = AR934X_NFC_CTRL_CUSTOM_SIZE_EN; - ar934x_nfc_wr(nfc, AR934X_NFC_REG_CTRL, nfc->ctrl_reg); - - if (nfc->small_page) { - /* Setup generic sequence register for small page reads. */ - ar934x_nfc_wr(nfc, AR934X_NFC_REG_GEN_SEQ_CTRL, - AR934X_NFC_GENSEQ_SMALL_PAGE_READ); - } -} - -static void -ar934x_nfc_restart(struct ar934x_nfc *nfc) -{ - u32 ctrl_reg; - - if (nfc->select_chip) - nfc->select_chip(-1); - - ctrl_reg = nfc->ctrl_reg; - ar934x_nfc_hw_init(nfc); - nfc->ctrl_reg = ctrl_reg; - - if (nfc->select_chip) - nfc->select_chip(0); - - ar934x_nfc_send_cmd(nfc, NAND_CMD_RESET); -} - -static irqreturn_t -ar934x_nfc_irq_handler(int irq, void *data) -{ - struct ar934x_nfc *nfc = data; - u32 status; - - status = ar934x_nfc_rr(nfc, AR934X_NFC_REG_INT_STATUS); - - ar934x_nfc_wr(nfc, AR934X_NFC_REG_INT_STATUS, 0); - /* flush write */ - ar934x_nfc_rr(nfc, AR934X_NFC_REG_INT_STATUS); - - status &= ar934x_nfc_rr(nfc, AR934X_NFC_REG_INT_MASK); - if (status) { - nfc_dbg(nfc, "got IRQ, status:%08x\n", status); - - nfc->irq_status = status; - nfc->spurious_irq_expected = true; - wake_up(&nfc->irq_waitq); - } else { - if (nfc->spurious_irq_expected) { - nfc->spurious_irq_expected = false; - } else { - dev_warn(nfc->parent, "spurious interrupt\n"); - } - } - - return IRQ_HANDLED; -} - -static int -ar934x_nfc_init_tail(struct mtd_info *mtd) -{ - struct ar934x_nfc *nfc = mtd_to_ar934x_nfc(mtd); - struct nand_chip *chip = &nfc->nand_chip; - u32 ctrl; - u32 t; - int err; - - switch (mtd->oobsize) { - case 16: - case 64: - case 128: - ar934x_nfc_wr(nfc, AR934X_NFC_REG_SPARE_SIZE, mtd->oobsize); - break; - - default: - dev_err(nfc->parent, "unsupported OOB size: %d bytes\n", - mtd->oobsize); - return -ENXIO; - } - - ctrl = AR934X_NFC_CTRL_CUSTOM_SIZE_EN; - - switch (mtd->erasesize / mtd->writesize) { - case 32: - t = AR934X_NFC_CTRL_BLOCK_SIZE_32; - break; - - case 64: - t = AR934X_NFC_CTRL_BLOCK_SIZE_64; - break; - - case 128: - t = AR934X_NFC_CTRL_BLOCK_SIZE_128; - break; - - case 256: - t = AR934X_NFC_CTRL_BLOCK_SIZE_256; - break; - - default: - dev_err(nfc->parent, "unsupported block size: %u\n", - mtd->erasesize / mtd->writesize); - return -ENXIO; - } - - ctrl |= t << AR934X_NFC_CTRL_BLOCK_SIZE_S; - - switch (mtd->writesize) { - case 256: - nfc->small_page = 1; - t = AR934X_NFC_CTRL_PAGE_SIZE_256; - break; - - case 512: - nfc->small_page = 1; - t = AR934X_NFC_CTRL_PAGE_SIZE_512; - break; - - case 1024: - t = AR934X_NFC_CTRL_PAGE_SIZE_1024; - break; - - case 2048: - t = AR934X_NFC_CTRL_PAGE_SIZE_2048; - break; - - case 4096: - t = AR934X_NFC_CTRL_PAGE_SIZE_4096; - break; - - case 8192: - t = AR934X_NFC_CTRL_PAGE_SIZE_8192; - break; - - case 16384: - t = AR934X_NFC_CTRL_PAGE_SIZE_16384; - break; - - default: - dev_err(nfc->parent, "unsupported write size: %d bytes\n", - mtd->writesize); - return -ENXIO; - } - - ctrl |= t << AR934X_NFC_CTRL_PAGE_SIZE_S; - - if (nfc->small_page) { - ctrl |= AR934X_NFC_CTRL_SMALL_PAGE; - - if (chip->chipsize > (32 << 20)) { - nfc->addr_count0 = 4; - nfc->addr_count1 = 3; - } else if (chip->chipsize > (2 << 16)) { - nfc->addr_count0 = 3; - nfc->addr_count1 = 2; - } else { - nfc->addr_count0 = 2; - nfc->addr_count1 = 1; - } - } else { - if (chip->chipsize > (128 << 20)) { - nfc->addr_count0 = 5; - nfc->addr_count1 = 3; - } else if (chip->chipsize > (8 << 16)) { - nfc->addr_count0 = 4; - nfc->addr_count1 = 2; - } else { - nfc->addr_count0 = 3; - nfc->addr_count1 = 1; - } - } - - ctrl |= nfc->addr_count0 << AR934X_NFC_CTRL_ADDR_CYCLE0_S; - ctrl |= nfc->addr_count1 << AR934X_NFC_CTRL_ADDR_CYCLE1_S; - - nfc->ctrl_reg = ctrl; - ar934x_nfc_wr(nfc, AR934X_NFC_REG_CTRL, nfc->ctrl_reg); - - ar934x_nfc_free_buf(nfc); - err = ar934x_nfc_alloc_buf(nfc, mtd->writesize + mtd->oobsize); - - return err; -} - -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0) -static struct nand_ecclayout ar934x_nfc_oob_64_hwecc = { - .eccbytes = 28, - .eccpos = { - 20, 21, 22, 23, 24, 25, 26, - 27, 28, 29, 30, 31, 32, 33, - 34, 35, 36, 37, 38, 39, 40, - 41, 42, 43, 44, 45, 46, 47, - }, - .oobfree = { - { - .offset = 4, - .length = 16, - }, - { - .offset = 48, - .length = 16, - }, - }, -}; - -#else - -static int ar934x_nfc_ooblayout_ecc(struct mtd_info *mtd, int section, - struct mtd_oob_region *oobregion) -{ - if (section) - return -ERANGE; - - oobregion->offset = 20; - oobregion->length = 28; - - return 0; -} - -static int ar934x_nfc_ooblayout_free(struct mtd_info *mtd, int section, - struct mtd_oob_region *oobregion) -{ - switch (section) { - case 0: - oobregion->offset = 4; - oobregion->length = 16; - return 0; - case 1: - oobregion->offset = 48; - oobregion->length = 16; - return 0; - default: - return -ERANGE; - } -} - -static const struct mtd_ooblayout_ops ar934x_nfc_ecclayout_ops = { - .ecc = ar934x_nfc_ooblayout_ecc, - .free = ar934x_nfc_ooblayout_free, -}; -#endif /* < 4.6 */ - -static int -ar934x_nfc_setup_hwecc(struct ar934x_nfc *nfc) -{ - struct nand_chip *nand = &nfc->nand_chip; - struct mtd_info *mtd = ar934x_nfc_to_mtd(nfc); - u32 ecc_cap; - u32 ecc_thres; -#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,6,0) - struct mtd_oob_region oobregion; -#endif - - if (!IS_ENABLED(CONFIG_MTD_NAND_AR934X_HW_ECC)) { - dev_err(nfc->parent, "hardware ECC support is disabled\n"); - return -EINVAL; - } - - switch (mtd->writesize) { - case 2048: - /* - * Writing a subpage separately is not supported, because - * the controller only does ECC on full-page accesses. - */ - nand->options = NAND_NO_SUBPAGE_WRITE; - - nand->ecc.size = 512; - nand->ecc.bytes = 7; - nand->ecc.strength = 4; -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0) - nand->ecc.layout = &ar934x_nfc_oob_64_hwecc; -#else - mtd_set_ooblayout(mtd, &ar934x_nfc_ecclayout_ops); -#endif - break; - - default: - dev_err(nfc->parent, - "hardware ECC is not available for %d byte pages\n", - mtd->writesize); - return -EINVAL; - } - -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0) - BUG_ON(!nand->ecc.layout); -#else - BUG_ON(!mtd->ooblayout->ecc); -#endif - - switch (nand->ecc.strength) { - case 4: - ecc_cap = AR934X_NFC_ECC_CTRL_ECC_CAP_4; - ecc_thres = 4; - break; - - default: - dev_err(nfc->parent, "unsupported ECC strength %u\n", - nand->ecc.strength); - return -EINVAL; - } - - nfc->ecc_thres = ecc_thres; -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0) - nfc->ecc_oob_pos = nand->ecc.layout->eccpos[0]; -#else - mtd->ooblayout->ecc(mtd, 0, &oobregion); - nfc->ecc_oob_pos = oobregion.offset; -#endif - - nfc->ecc_ctrl_reg = ecc_cap << AR934X_NFC_ECC_CTRL_ECC_CAP_S; - nfc->ecc_ctrl_reg |= ecc_thres << AR934X_NFC_ECC_CTRL_ERR_THRES_S; - - nfc->ecc_offset_reg = mtd->writesize + nfc->ecc_oob_pos; - - nand->ecc.mode = NAND_ECC_HW; - nand->ecc.read_page = ar934x_nfc_read_page; - nand->ecc.read_page_raw = ar934x_nfc_read_page_raw; - nand->ecc.write_page = ar934x_nfc_write_page; - nand->ecc.write_page_raw = ar934x_nfc_write_page_raw; - nand->ecc.read_oob = ar934x_nfc_read_oob; - nand->ecc.write_oob = ar934x_nfc_write_oob; - - return 0; -} - -static int -ar934x_nfc_probe(struct platform_device *pdev) -{ - static const char *part_probes[] = { "cmdlinepart", NULL, }; - struct ar934x_nfc_platform_data *pdata; - struct ar934x_nfc *nfc; - struct resource *res; - struct mtd_info *mtd; - struct nand_chip *nand; - struct mtd_part_parser_data ppdata; - int ret; - - pdata = pdev->dev.platform_data; - if (pdata == NULL) { - dev_err(&pdev->dev, "no platform data defined\n"); - return -EINVAL; - } - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) { - dev_err(&pdev->dev, "failed to get I/O memory\n"); - return -EINVAL; - } - - nfc = devm_kzalloc(&pdev->dev, sizeof(struct ar934x_nfc), GFP_KERNEL); - if (!nfc) { - dev_err(&pdev->dev, "failed to allocate driver data\n"); - return -ENOMEM; - } - - nfc->base = devm_ioremap_resource(&pdev->dev, res); - if (IS_ERR(nfc->base)) { - dev_err(&pdev->dev, "failed to remap I/O memory\n"); - return PTR_ERR(nfc->base); - } - - nfc->irq = platform_get_irq(pdev, 0); - if (nfc->irq < 0) { - dev_err(&pdev->dev, "no IRQ resource specified\n"); - return -EINVAL; - } - - init_waitqueue_head(&nfc->irq_waitq); - ret = request_irq(nfc->irq, ar934x_nfc_irq_handler, 0, - dev_name(&pdev->dev), nfc); - if (ret) { - dev_err(&pdev->dev, "requast_irq failed, err:%d\n", ret); - return ret; - } - - nfc->parent = &pdev->dev; - nfc->select_chip = pdata->select_chip; - nfc->swap_dma = pdata->swap_dma; - - nand = &nfc->nand_chip; - mtd = ar934x_nfc_to_mtd(nfc); - -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0) - mtd->priv = nand; -#endif - mtd->owner = THIS_MODULE; - if (pdata->name) - mtd->name = pdata->name; - else - mtd->name = dev_name(&pdev->dev); - - nand->chip_delay = 25; - - nand->dev_ready = ar934x_nfc_dev_ready; - nand->cmdfunc = ar934x_nfc_cmdfunc; - nand->read_byte = ar934x_nfc_read_byte; - nand->write_buf = ar934x_nfc_write_buf; - nand->read_buf = ar934x_nfc_read_buf; - nand->select_chip = ar934x_nfc_select_chip; - - ret = ar934x_nfc_alloc_buf(nfc, AR934X_NFC_ID_BUF_SIZE); - if (ret) - goto err_free_irq; - - platform_set_drvdata(pdev, nfc); - - ar934x_nfc_hw_init(nfc); - - ret = nand_scan_ident(mtd, 1, NULL); - if (ret) { - dev_err(&pdev->dev, "nand_scan_ident failed, err:%d\n", ret); - goto err_free_buf; - } - - ret = ar934x_nfc_init_tail(mtd); - if (ret) { - dev_err(&pdev->dev, "init tail failed, err:%d\n", ret); - goto err_free_buf; - } - - if (pdata->scan_fixup) { - ret = pdata->scan_fixup(mtd); - if (ret) - goto err_free_buf; - } - - switch (pdata->ecc_mode) { - case AR934X_NFC_ECC_SOFT: - nand->ecc.mode = NAND_ECC_SOFT; -#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,6,0) - nand->ecc.algo = NAND_ECC_HAMMING; -#endif - break; - - case AR934X_NFC_ECC_SOFT_BCH: -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0) - nand->ecc.mode = NAND_ECC_SOFT_BCH; -#else - nand->ecc.mode = NAND_ECC_SOFT; - nand->ecc.algo = NAND_ECC_BCH; -#endif - break; - - case AR934X_NFC_ECC_HW: - ret = ar934x_nfc_setup_hwecc(nfc); - if (ret) - goto err_free_buf; - - break; - - default: - dev_err(nfc->parent, "unknown ECC mode %d\n", pdata->ecc_mode); - return -EINVAL; - } - - ret = nand_scan_tail(mtd); - if (ret) { - dev_err(&pdev->dev, "scan tail failed, err:%d\n", ret); - goto err_free_buf; - } - - memset(&ppdata, '\0', sizeof(ppdata)); - ret = mtd_device_parse_register(mtd, part_probes, &ppdata, - pdata->parts, pdata->nr_parts); - if (ret) { - dev_err(&pdev->dev, "unable to register mtd, err:%d\n", ret); - goto err_free_buf; - } - - return 0; - -err_free_buf: - ar934x_nfc_free_buf(nfc); -err_free_irq: - free_irq(nfc->irq, nfc); - return ret; -} - -static int -ar934x_nfc_remove(struct platform_device *pdev) -{ - struct ar934x_nfc *nfc; - struct mtd_info *mtd; - - nfc = platform_get_drvdata(pdev); - if (nfc) { - mtd = ar934x_nfc_to_mtd(nfc); - nand_release(&nfc->nand_chip); - ar934x_nfc_free_buf(nfc); - free_irq(nfc->irq, nfc); - } - - return 0; -} - -static struct platform_driver ar934x_nfc_driver = { - .probe = ar934x_nfc_probe, - .remove = ar934x_nfc_remove, - .driver = { - .name = AR934X_NFC_DRIVER_NAME, - .owner = THIS_MODULE, - }, -}; - -module_platform_driver(ar934x_nfc_driver); - -MODULE_LICENSE("GPL v2"); -MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>"); -MODULE_DESCRIPTION("Atheros AR934x NAND Flash Controller driver"); -MODULE_ALIAS("platform:" AR934X_NFC_DRIVER_NAME); diff --git a/target/linux/ar71xx/files/drivers/mtd/nand/rb4xx_nand.c b/target/linux/ar71xx/files/drivers/mtd/nand/rb4xx_nand.c deleted file mode 100644 index 7dde613131..0000000000 --- a/target/linux/ar71xx/files/drivers/mtd/nand/rb4xx_nand.c +++ /dev/null @@ -1,396 +0,0 @@ -/* - * NAND flash driver for the MikroTik RouterBoard 4xx series - * - * Copyright (C) 2008-2011 Gabor Juhos <juhosg@openwrt.org> - * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org> - * - * This file was based on the driver for Linux 2.6.22 published by - * MikroTik for their RouterBoard 4xx series devices. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation. - */ - -#include <linux/version.h> -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/init.h> -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,14,0) -#include <linux/mtd/nand.h> -#else -#include <linux/mtd/rawnand.h> -#endif -#include <linux/mtd/mtd.h> -#include <linux/mtd/partitions.h> -#include <linux/platform_device.h> -#include <linux/delay.h> -#include <linux/io.h> -#include <linux/gpio.h> -#include <linux/slab.h> - -#include <asm/mach-ath79/ath79.h> -#include <asm/mach-ath79/rb4xx_cpld.h> - -#define DRV_NAME "rb4xx-nand" -#define DRV_VERSION "0.2.0" -#define DRV_DESC "NAND flash driver for RouterBoard 4xx series" - -#define RB4XX_NAND_GPIO_READY 5 -#define RB4XX_NAND_GPIO_ALE 37 -#define RB4XX_NAND_GPIO_CLE 38 -#define RB4XX_NAND_GPIO_NCE 39 - -struct rb4xx_nand_info { - struct nand_chip chip; -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0) - struct mtd_info mtd; -#endif -}; - -static inline struct rb4xx_nand_info *mtd_to_rbinfo(struct mtd_info *mtd) -{ -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0) - return container_of(mtd, struct rb4xx_nand_info, mtd); -#else - struct nand_chip *chip = mtd_to_nand(mtd); - - return container_of(chip, struct rb4xx_nand_info, chip); -#endif -} - -static struct mtd_info *rbinfo_to_mtd(struct rb4xx_nand_info *nfc) -{ -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0) - return &nfc->mtd; -#else - return nand_to_mtd(&nfc->chip); -#endif -} - -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0) -/* - * We need to use the OLD Yaffs-1 OOB layout, otherwise the RB bootloader - * will not be able to find the kernel that we load. - */ -static struct nand_ecclayout rb4xx_nand_ecclayout = { - .eccbytes = 6, - .eccpos = { 8, 9, 10, 13, 14, 15 }, - .oobavail = 9, - .oobfree = { { 0, 4 }, { 6, 2 }, { 11, 2 }, { 4, 1 } } -}; - -#else - -static int rb4xx_ooblayout_ecc(struct mtd_info *mtd, int section, - struct mtd_oob_region *oobregion) -{ - switch (section) { - case 0: - oobregion->offset = 8; - oobregion->length = 3; - return 0; - case 1: - oobregion->offset = 13; - oobregion->length = 3; - return 0; - default: - return -ERANGE; - } -} - -static int rb4xx_ooblayout_free(struct mtd_info *mtd, int section, - struct mtd_oob_region *oobregion) -{ - switch (section) { - case 0: - oobregion->offset = 0; - oobregion->length = 4; - return 0; - case 1: - oobregion->offset = 4; - oobregion->length = 1; - return 0; - case 2: - oobregion->offset = 6; - oobregion->length = 2; - return 0; - case 3: - oobregion->offset = 11; - oobregion->length = 2; - return 0; - default: - return -ERANGE; - } -} - -static const struct mtd_ooblayout_ops rb4xx_nand_ecclayout_ops = { - .ecc = rb4xx_ooblayout_ecc, - .free = rb4xx_ooblayout_free, -}; -#endif /* < 4.6 */ - -static struct mtd_partition rb4xx_nand_partitions[] = { - { - .name = "booter", - .offset = 0, - .size = (256 * 1024), - .mask_flags = MTD_WRITEABLE, - }, - { - .name = "kernel", - .offset = (256 * 1024), - .size = (4 * 1024 * 1024) - (256 * 1024), - }, - { - .name = "ubi", - .offset = MTDPART_OFS_NXTBLK, - .size = MTDPART_SIZ_FULL, - }, -}; - -static int rb4xx_nand_dev_ready(struct mtd_info *mtd) -{ - return gpio_get_value_cansleep(RB4XX_NAND_GPIO_READY); -} - -static void rb4xx_nand_write_cmd(unsigned char cmd) -{ - unsigned char data = cmd; - int err; - - err = rb4xx_cpld_write(&data, 1); - if (err) - pr_err("rb4xx_nand: write cmd failed, err=%d\n", err); -} - -static void rb4xx_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, - unsigned int ctrl) -{ - if (ctrl & NAND_CTRL_CHANGE) { - gpio_set_value_cansleep(RB4XX_NAND_GPIO_CLE, - (ctrl & NAND_CLE) ? 1 : 0); - gpio_set_value_cansleep(RB4XX_NAND_GPIO_ALE, - (ctrl & NAND_ALE) ? 1 : 0); - gpio_set_value_cansleep(RB4XX_NAND_GPIO_NCE, - (ctrl & NAND_NCE) ? 0 : 1); - } - - if (cmd != NAND_CMD_NONE) - rb4xx_nand_write_cmd(cmd); -} - -static unsigned char rb4xx_nand_read_byte(struct mtd_info *mtd) -{ - unsigned char data = 0; - int err; - - err = rb4xx_cpld_read(&data, 1); - if (err) { - pr_err("rb4xx_nand: read data failed, err=%d\n", err); - data = 0xff; - } - - return data; -} - -static void rb4xx_nand_write_buf(struct mtd_info *mtd, const unsigned char *buf, - int len) -{ - int err; - - err = rb4xx_cpld_write(buf, len); - if (err) - pr_err("rb4xx_nand: write buf failed, err=%d\n", err); -} - -static void rb4xx_nand_read_buf(struct mtd_info *mtd, unsigned char *buf, - int len) -{ - int err; - - err = rb4xx_cpld_read(buf, len); - if (err) - pr_err("rb4xx_nand: read buf failed, err=%d\n", err); -} - -static int rb4xx_nand_probe(struct platform_device *pdev) -{ - struct rb4xx_nand_info *info; - struct mtd_info *mtd; - int ret; - - printk(KERN_INFO DRV_DESC " version " DRV_VERSION "\n"); - - ret = gpio_request(RB4XX_NAND_GPIO_READY, "NAND RDY"); - if (ret) { - dev_err(&pdev->dev, "unable to request gpio %d\n", - RB4XX_NAND_GPIO_READY); - goto err; - } - - ret = gpio_direction_input(RB4XX_NAND_GPIO_READY); - if (ret) { - dev_err(&pdev->dev, "unable to set input mode on gpio %d\n", - RB4XX_NAND_GPIO_READY); - goto err_free_gpio_ready; - } - - ret = gpio_request(RB4XX_NAND_GPIO_ALE, "NAND ALE"); - if (ret) { - dev_err(&pdev->dev, "unable to request gpio %d\n", - RB4XX_NAND_GPIO_ALE); - goto err_free_gpio_ready; - } - - ret = gpio_direction_output(RB4XX_NAND_GPIO_ALE, 0); - if (ret) { - dev_err(&pdev->dev, "unable to set output mode on gpio %d\n", - RB4XX_NAND_GPIO_ALE); - goto err_free_gpio_ale; - } - - ret = gpio_request(RB4XX_NAND_GPIO_CLE, "NAND CLE"); - if (ret) { - dev_err(&pdev->dev, "unable to request gpio %d\n", - RB4XX_NAND_GPIO_CLE); - goto err_free_gpio_ale; - } - - ret = gpio_direction_output(RB4XX_NAND_GPIO_CLE, 0); - if (ret) { - dev_err(&pdev->dev, "unable to set output mode on gpio %d\n", - RB4XX_NAND_GPIO_CLE); - goto err_free_gpio_cle; - } - - ret = gpio_request(RB4XX_NAND_GPIO_NCE, "NAND NCE"); - if (ret) { - dev_err(&pdev->dev, "unable to request gpio %d\n", - RB4XX_NAND_GPIO_NCE); - goto err_free_gpio_cle; - } - - ret = gpio_direction_output(RB4XX_NAND_GPIO_NCE, 1); - if (ret) { - dev_err(&pdev->dev, "unable to set output mode on gpio %d\n", - RB4XX_NAND_GPIO_ALE); - goto err_free_gpio_nce; - } - - info = kzalloc(sizeof(*info), GFP_KERNEL); - if (!info) { - dev_err(&pdev->dev, "rb4xx-nand: no memory for private data\n"); - ret = -ENOMEM; - goto err_free_gpio_nce; - } - - info->chip.priv = &info; - mtd = rbinfo_to_mtd(info); - -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0) - mtd->priv = &info->chip; -#endif - mtd->owner = THIS_MODULE; - - info->chip.cmd_ctrl = rb4xx_nand_cmd_ctrl; - info->chip.dev_ready = rb4xx_nand_dev_ready; - info->chip.read_byte = rb4xx_nand_read_byte; - info->chip.write_buf = rb4xx_nand_write_buf; - info->chip.read_buf = rb4xx_nand_read_buf; - - info->chip.chip_delay = 25; - info->chip.ecc.mode = NAND_ECC_SOFT; -#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,6,0) - info->chip.ecc.algo = NAND_ECC_HAMMING; -#endif - info->chip.options = NAND_NO_SUBPAGE_WRITE; - - platform_set_drvdata(pdev, info); - - ret = nand_scan_ident(mtd, 1, NULL); - if (ret) { - ret = -ENXIO; - goto err_free_info; - } - - if (mtd->writesize == 512) -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0) - info->chip.ecc.layout = &rb4xx_nand_ecclayout; -#else - mtd_set_ooblayout(mtd, &rb4xx_nand_ecclayout_ops); -#endif - - ret = nand_scan_tail(mtd); - if (ret) { - return -ENXIO; - goto err_set_drvdata; - } - - mtd_device_register(mtd, rb4xx_nand_partitions, - ARRAY_SIZE(rb4xx_nand_partitions)); - if (ret) - goto err_release_nand; - - return 0; - -err_release_nand: - nand_release(&info->chip); -err_set_drvdata: - platform_set_drvdata(pdev, NULL); -err_free_info: - kfree(info); -err_free_gpio_nce: - gpio_free(RB4XX_NAND_GPIO_NCE); -err_free_gpio_cle: - gpio_free(RB4XX_NAND_GPIO_CLE); -err_free_gpio_ale: - gpio_free(RB4XX_NAND_GPIO_ALE); -err_free_gpio_ready: - gpio_free(RB4XX_NAND_GPIO_READY); -err: - return ret; -} - -static int rb4xx_nand_remove(struct platform_device *pdev) -{ - struct rb4xx_nand_info *info = platform_get_drvdata(pdev); - - nand_release(&info->chip); - platform_set_drvdata(pdev, NULL); - kfree(info); - gpio_free(RB4XX_NAND_GPIO_NCE); - gpio_free(RB4XX_NAND_GPIO_CLE); - gpio_free(RB4XX_NAND_GPIO_ALE); - gpio_free(RB4XX_NAND_GPIO_READY); - - return 0; -} - -static struct platform_driver rb4xx_nand_driver = { - .probe = rb4xx_nand_probe, - .remove = rb4xx_nand_remove, - .driver = { - .name = DRV_NAME, - .owner = THIS_MODULE, - }, -}; - -static int __init rb4xx_nand_init(void) -{ - return platform_driver_register(&rb4xx_nand_driver); -} - -static void __exit rb4xx_nand_exit(void) -{ - platform_driver_unregister(&rb4xx_nand_driver); -} - -module_init(rb4xx_nand_init); -module_exit(rb4xx_nand_exit); - -MODULE_DESCRIPTION(DRV_DESC); -MODULE_VERSION(DRV_VERSION); -MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>"); -MODULE_AUTHOR("Imre Kaloz <kaloz@openwrt.org>"); -MODULE_LICENSE("GPL v2"); diff --git a/target/linux/ar71xx/files/drivers/mtd/nand/rb750_nand.c b/target/linux/ar71xx/files/drivers/mtd/nand/rb750_nand.c deleted file mode 100644 index a578c54ad3..0000000000 --- a/target/linux/ar71xx/files/drivers/mtd/nand/rb750_nand.c +++ /dev/null @@ -1,440 +0,0 @@ -/* - * NAND flash driver for the MikroTik RouterBOARD 750 - * - * Copyright (C) 2010-2012 Gabor Juhos <juhosg@openwrt.org> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation. - */ - -#include <linux/version.h> -#include <linux/kernel.h> -#include <linux/module.h> -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,14,0) -#include <linux/mtd/nand.h> -#else -#include <linux/mtd/rawnand.h> -#endif -#include <linux/mtd/mtd.h> -#include <linux/mtd/partitions.h> -#include <linux/platform_device.h> -#include <linux/io.h> -#include <linux/slab.h> - -#include <asm/mach-ath79/ar71xx_regs.h> -#include <asm/mach-ath79/ath79.h> -#include <asm/mach-ath79/mach-rb750.h> - -#define DRV_NAME "rb750-nand" -#define DRV_VERSION "0.1.0" -#define DRV_DESC "NAND flash driver for the RouterBOARD 750" - -#define RB750_NAND_IO0 BIT(RB750_GPIO_NAND_IO0) -#define RB750_NAND_ALE BIT(RB750_GPIO_NAND_ALE) -#define RB750_NAND_CLE BIT(RB750_GPIO_NAND_CLE) -#define RB750_NAND_NRE BIT(RB750_GPIO_NAND_NRE) -#define RB750_NAND_NWE BIT(RB750_GPIO_NAND_NWE) -#define RB750_NAND_RDY BIT(RB750_GPIO_NAND_RDY) - -#define RB750_NAND_DATA_SHIFT 1 -#define RB750_NAND_DATA_BITS (0xff << RB750_NAND_DATA_SHIFT) -#define RB750_NAND_INPUT_BITS (RB750_NAND_DATA_BITS | RB750_NAND_RDY) -#define RB750_NAND_OUTPUT_BITS (RB750_NAND_ALE | RB750_NAND_CLE | \ - RB750_NAND_NRE | RB750_NAND_NWE) - -struct rb750_nand_info { - struct nand_chip chip; -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0) - struct mtd_info mtd; -#endif - struct rb7xx_nand_platform_data *pdata; -}; - -static inline struct rb750_nand_info *mtd_to_rbinfo(struct mtd_info *mtd) -{ -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0) - return container_of(mtd, struct rb750_nand_info, mtd); -#else - struct nand_chip *chip = mtd_to_nand(mtd); - - return container_of(chip, struct rb750_nand_info, chip); -#endif -} - -static struct mtd_info *rbinfo_to_mtd(struct rb750_nand_info *nfc) -{ -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0) - return &nfc->mtd; -#else - return nand_to_mtd(&nfc->chip); -#endif -} - -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0) -/* - * We need to use the OLD Yaffs-1 OOB layout, otherwise the RB bootloader - * will not be able to find the kernel that we load. - */ -static struct nand_ecclayout rb750_nand_ecclayout = { - .eccbytes = 6, - .eccpos = { 8, 9, 10, 13, 14, 15 }, - .oobavail = 9, - .oobfree = { { 0, 4 }, { 6, 2 }, { 11, 2 }, { 4, 1 } } -}; - -#else - -static int rb750_ooblayout_ecc(struct mtd_info *mtd, int section, - struct mtd_oob_region *oobregion) -{ - switch (section) { - case 0: - oobregion->offset = 8; - oobregion->length = 3; - return 0; - case 1: - oobregion->offset = 13; - oobregion->length = 3; - return 0; - default: - return -ERANGE; - } -} - -static int rb750_ooblayout_free(struct mtd_info *mtd, int section, - struct mtd_oob_region *oobregion) -{ - switch (section) { - case 0: - oobregion->offset = 0; - oobregion->length = 4; - return 0; - case 1: - oobregion->offset = 4; - oobregion->length = 1; - return 0; - case 2: - oobregion->offset = 6; - oobregion->length = 2; - return 0; - case 3: - oobregion->offset = 11; - oobregion->length = 2; - return 0; - default: - return -ERANGE; - } -} - -static const struct mtd_ooblayout_ops rb750_nand_ecclayout_ops = { - .ecc = rb750_ooblayout_ecc, - .free = rb750_ooblayout_free, -}; -#endif /* < 4.6 */ - -static struct mtd_partition rb750_nand_partitions[] = { - { - .name = "booter", - .offset = 0, - .size = (256 * 1024), - .mask_flags = MTD_WRITEABLE, - }, { - .name = "kernel", - .offset = (256 * 1024), - .size = (4 * 1024 * 1024) - (256 * 1024), - }, { - .name = "ubi", - .offset = MTDPART_OFS_NXTBLK, - .size = MTDPART_SIZ_FULL, - }, -}; - -static void rb750_nand_write(const u8 *buf, unsigned len) -{ - void __iomem *base = ath79_gpio_base; - u32 out; - u32 t; - unsigned i; - - /* set data lines to output mode */ - t = __raw_readl(base + AR71XX_GPIO_REG_OE); - __raw_writel(t | RB750_NAND_DATA_BITS, base + AR71XX_GPIO_REG_OE); - - out = __raw_readl(base + AR71XX_GPIO_REG_OUT); - out &= ~(RB750_NAND_DATA_BITS | RB750_NAND_NWE); - for (i = 0; i != len; i++) { - u32 data; - - data = buf[i]; - data <<= RB750_NAND_DATA_SHIFT; - data |= out; - __raw_writel(data, base + AR71XX_GPIO_REG_OUT); - - __raw_writel(data | RB750_NAND_NWE, base + AR71XX_GPIO_REG_OUT); - /* flush write */ - __raw_readl(base + AR71XX_GPIO_REG_OUT); - } - - /* set data lines to input mode */ - t = __raw_readl(base + AR71XX_GPIO_REG_OE); - __raw_writel(t & ~RB750_NAND_DATA_BITS, base + AR71XX_GPIO_REG_OE); - /* flush write */ - __raw_readl(base + AR71XX_GPIO_REG_OE); -} - -static void rb750_nand_read(u8 *read_buf, unsigned len) -{ - void __iomem *base = ath79_gpio_base; - unsigned i; - - for (i = 0; i < len; i++) { - u8 data; - - /* activate RE line */ - __raw_writel(RB750_NAND_NRE, base + AR71XX_GPIO_REG_CLEAR); - /* flush write */ - __raw_readl(base + AR71XX_GPIO_REG_CLEAR); - - /* read input lines */ - data = __raw_readl(base + AR71XX_GPIO_REG_IN) >> - RB750_NAND_DATA_SHIFT; - - /* deactivate RE line */ - __raw_writel(RB750_NAND_NRE, base + AR71XX_GPIO_REG_SET); - - read_buf[i] = data; - } -} - -static void rb750_nand_select_chip(struct mtd_info *mtd, int chip) -{ - struct rb750_nand_info *rbinfo = mtd_to_rbinfo(mtd); - void __iomem *base = ath79_gpio_base; - u32 t; - - if (chip >= 0) { - rbinfo->pdata->enable_pins(); - - /* set input mode for data lines */ - t = __raw_readl(base + AR71XX_GPIO_REG_OE); - __raw_writel(t & ~RB750_NAND_INPUT_BITS, - base + AR71XX_GPIO_REG_OE); - - /* deactivate RE and WE lines */ - __raw_writel(RB750_NAND_NRE | RB750_NAND_NWE, - base + AR71XX_GPIO_REG_SET); - /* flush write */ - (void) __raw_readl(base + AR71XX_GPIO_REG_SET); - - /* activate CE line */ - __raw_writel(rbinfo->pdata->nce_line, - base + AR71XX_GPIO_REG_CLEAR); - } else { - /* deactivate CE line */ - __raw_writel(rbinfo->pdata->nce_line, - base + AR71XX_GPIO_REG_SET); - /* flush write */ - (void) __raw_readl(base + AR71XX_GPIO_REG_SET); - - t = __raw_readl(base + AR71XX_GPIO_REG_OE); - __raw_writel(t | RB750_NAND_IO0 | RB750_NAND_RDY, - base + AR71XX_GPIO_REG_OE); - - rbinfo->pdata->disable_pins(); - } -} - -static int rb750_nand_dev_ready(struct mtd_info *mtd) -{ - void __iomem *base = ath79_gpio_base; - - return !!(__raw_readl(base + AR71XX_GPIO_REG_IN) & RB750_NAND_RDY); -} - -static void rb750_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, - unsigned int ctrl) -{ - if (ctrl & NAND_CTRL_CHANGE) { - void __iomem *base = ath79_gpio_base; - u32 t; - - t = __raw_readl(base + AR71XX_GPIO_REG_OUT); - - t &= ~(RB750_NAND_CLE | RB750_NAND_ALE); - t |= (ctrl & NAND_CLE) ? RB750_NAND_CLE : 0; - t |= (ctrl & NAND_ALE) ? RB750_NAND_ALE : 0; - - __raw_writel(t, base + AR71XX_GPIO_REG_OUT); - /* flush write */ - __raw_readl(base + AR71XX_GPIO_REG_OUT); - } - - if (cmd != NAND_CMD_NONE) { - u8 t = cmd; - rb750_nand_write(&t, 1); - } -} - -static u8 rb750_nand_read_byte(struct mtd_info *mtd) -{ - u8 data = 0; - rb750_nand_read(&data, 1); - return data; -} - -static void rb750_nand_read_buf(struct mtd_info *mtd, u8 *buf, int len) -{ - rb750_nand_read(buf, len); -} - -static void rb750_nand_write_buf(struct mtd_info *mtd, const u8 *buf, int len) -{ - rb750_nand_write(buf, len); -} - -static void __init rb750_nand_gpio_init(struct rb750_nand_info *info) -{ - void __iomem *base = ath79_gpio_base; - u32 out; - u32 t; - - out = __raw_readl(base + AR71XX_GPIO_REG_OUT); - - /* setup output levels */ - __raw_writel(RB750_NAND_NCE | RB750_NAND_NRE | RB750_NAND_NWE, - base + AR71XX_GPIO_REG_SET); - - __raw_writel(RB750_NAND_ALE | RB750_NAND_CLE, - base + AR71XX_GPIO_REG_CLEAR); - - /* setup input lines */ - t = __raw_readl(base + AR71XX_GPIO_REG_OE); - __raw_writel(t & ~(RB750_NAND_INPUT_BITS), base + AR71XX_GPIO_REG_OE); - - /* setup output lines */ - t = __raw_readl(base + AR71XX_GPIO_REG_OE); - t |= RB750_NAND_OUTPUT_BITS; - t |= info->pdata->nce_line; - __raw_writel(t, base + AR71XX_GPIO_REG_OE); - - info->pdata->latch_change(~out & RB750_NAND_IO0, out & RB750_NAND_IO0); -} - -static int rb750_nand_probe(struct platform_device *pdev) -{ - struct rb750_nand_info *info; - struct rb7xx_nand_platform_data *pdata; - struct mtd_info *mtd; - int ret; - - printk(KERN_INFO DRV_DESC " version " DRV_VERSION "\n"); - - pdata = pdev->dev.platform_data; - if (!pdata) - return -EINVAL; - - info = kzalloc(sizeof(*info), GFP_KERNEL); - if (!info) - return -ENOMEM; - - info->chip.priv = &info; - - mtd = rbinfo_to_mtd(info); -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0) - mtd->priv = &info->chip; -#endif - mtd->owner = THIS_MODULE; - - info->chip.select_chip = rb750_nand_select_chip; - info->chip.cmd_ctrl = rb750_nand_cmd_ctrl; - info->chip.dev_ready = rb750_nand_dev_ready; - info->chip.read_byte = rb750_nand_read_byte; - info->chip.write_buf = rb750_nand_write_buf; - info->chip.read_buf = rb750_nand_read_buf; - - info->chip.chip_delay = 25; - info->chip.ecc.mode = NAND_ECC_SOFT; -#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,6,0) - info->chip.ecc.algo = NAND_ECC_HAMMING; -#endif - info->chip.options = NAND_NO_SUBPAGE_WRITE; - - info->pdata = pdata; - - platform_set_drvdata(pdev, info); - - rb750_nand_gpio_init(info); - - ret = nand_scan_ident(mtd, 1, NULL); - if (ret) { - ret = -ENXIO; - goto err_free_info; - } - - if (mtd->writesize == 512) -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0) - info->chip.ecc.layout = &rb750_nand_ecclayout; -#else - mtd_set_ooblayout(mtd, &rb750_nand_ecclayout_ops); -#endif - - ret = nand_scan_tail(mtd); - if (ret) { - return -ENXIO; - goto err_set_drvdata; - } - - ret = mtd_device_register(mtd, rb750_nand_partitions, - ARRAY_SIZE(rb750_nand_partitions)); - if (ret) - goto err_release_nand; - - return 0; - -err_release_nand: - nand_release(&info->chip); -err_set_drvdata: - platform_set_drvdata(pdev, NULL); -err_free_info: - kfree(info); - return ret; -} - -static int rb750_nand_remove(struct platform_device *pdev) -{ - struct rb750_nand_info *info = platform_get_drvdata(pdev); - - nand_release(&info->chip); - platform_set_drvdata(pdev, NULL); - kfree(info); - - return 0; -} - -static struct platform_driver rb750_nand_driver = { - .probe = rb750_nand_probe, - .remove = rb750_nand_remove, - .driver = { - .name = DRV_NAME, - .owner = THIS_MODULE, - }, -}; - -static int __init rb750_nand_init(void) -{ - return platform_driver_register(&rb750_nand_driver); -} - -static void __exit rb750_nand_exit(void) -{ - platform_driver_unregister(&rb750_nand_driver); -} - -module_init(rb750_nand_init); -module_exit(rb750_nand_exit); - -MODULE_DESCRIPTION(DRV_DESC); -MODULE_VERSION(DRV_VERSION); -MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>"); -MODULE_LICENSE("GPL v2"); diff --git a/target/linux/ar71xx/files/drivers/mtd/nand/rb91x_nand.c b/target/linux/ar71xx/files/drivers/mtd/nand/rb91x_nand.c deleted file mode 100644 index 94e709b7e4..0000000000 --- a/target/linux/ar71xx/files/drivers/mtd/nand/rb91x_nand.c +++ /dev/null @@ -1,464 +0,0 @@ -/* - * NAND flash driver for the MikroTik RouterBOARD 91x series - * - * Copyright (C) 2013-2014 Gabor Juhos <juhosg@openwrt.org> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation. - */ - -#include <linux/version.h> -#include <linux/kernel.h> -#include <linux/spinlock.h> -#include <linux/module.h> -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,14,0) -#include <linux/mtd/nand.h> -#else -#include <linux/mtd/rawnand.h> -#endif -#include <linux/mtd/mtd.h> -#include <linux/mtd/partitions.h> -#include <linux/platform_device.h> -#include <linux/io.h> -#include <linux/slab.h> -#include <linux/gpio.h> -#include <linux/platform_data/rb91x_nand.h> - -#include <asm/mach-ath79/ar71xx_regs.h> -#include <asm/mach-ath79/ath79.h> - -#define DRV_DESC "NAND flash driver for the RouterBOARD 91x series" - -#define RB91X_NAND_NRWE BIT(12) - -#define RB91X_NAND_DATA_BITS (BIT(0) | BIT(1) | BIT(2) | BIT(3) | BIT(4) |\ - BIT(13) | BIT(14) | BIT(15)) - -#define RB91X_NAND_INPUT_BITS (RB91X_NAND_DATA_BITS | RB91X_NAND_RDY) -#define RB91X_NAND_OUTPUT_BITS (RB91X_NAND_DATA_BITS | RB91X_NAND_NRWE) - -#define RB91X_NAND_LOW_DATA_MASK 0x1f -#define RB91X_NAND_HIGH_DATA_MASK 0xe0 -#define RB91X_NAND_HIGH_DATA_SHIFT 8 - -struct rb91x_nand_info { - struct nand_chip chip; -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0) - struct mtd_info mtd; -#endif - struct device *dev; - - int gpio_nce; - int gpio_ale; - int gpio_cle; - int gpio_rdy; - int gpio_read; - int gpio_nrw; - int gpio_nle; -}; - -static inline struct rb91x_nand_info *mtd_to_rbinfo(struct mtd_info *mtd) -{ -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0) - return container_of(mtd, struct rb91x_nand_info, mtd); -#else - struct nand_chip *chip = mtd_to_nand(mtd); - - return container_of(chip, struct rb91x_nand_info, chip); -#endif -} - -static struct mtd_info *rbinfo_to_mtd(struct rb91x_nand_info *nfc) -{ -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0) - return &nfc->mtd; -#else - return nand_to_mtd(&nfc->chip); -#endif -} - - -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0) -/* - * We need to use the OLD Yaffs-1 OOB layout, otherwise the RB bootloader - * will not be able to find the kernel that we load. - */ -static struct nand_ecclayout rb91x_nand_ecclayout = { - .eccbytes = 6, - .eccpos = { 8, 9, 10, 13, 14, 15 }, - .oobavail = 9, - .oobfree = { { 0, 4 }, { 6, 2 }, { 11, 2 }, { 4, 1 } } -}; - -#else - -static int rb91x_ooblayout_ecc(struct mtd_info *mtd, int section, - struct mtd_oob_region *oobregion) -{ - switch (section) { - case 0: - oobregion->offset = 8; - oobregion->length = 3; - return 0; - case 1: - oobregion->offset = 13; - oobregion->length = 3; - return 0; - default: - return -ERANGE; - } -} - -static int rb91x_ooblayout_free(struct mtd_info *mtd, int section, - struct mtd_oob_region *oobregion) -{ - switch (section) { - case 0: - oobregion->offset = 0; - oobregion->length = 4; - return 0; - case 1: - oobregion->offset = 4; - oobregion->length = 1; - return 0; - case 2: - oobregion->offset = 6; - oobregion->length = 2; - return 0; - case 3: - oobregion->offset = 11; - oobregion->length = 2; - return 0; - default: - return -ERANGE; - } -} - -static const struct mtd_ooblayout_ops rb91x_nand_ecclayout_ops = { - .ecc = rb91x_ooblayout_ecc, - .free = rb91x_ooblayout_free, -}; -#endif /* < 4.6 */ - -static struct mtd_partition rb91x_nand_partitions[] = { - { - .name = "booter", - .offset = 0, - .size = (256 * 1024), - .mask_flags = MTD_WRITEABLE, - }, { - .name = "kernel", - .offset = (256 * 1024), - .size = (4 * 1024 * 1024) - (256 * 1024), - }, { - .name = "ubi", - .offset = MTDPART_OFS_NXTBLK, - .size = MTDPART_SIZ_FULL, - }, -}; - -static void rb91x_nand_write(struct rb91x_nand_info *rbni, - const u8 *buf, - unsigned len) -{ - void __iomem *base = ath79_gpio_base; - u32 oe_reg; - u32 out_reg; - u32 out; - unsigned i; - - /* enable the latch */ - gpio_set_value_cansleep(rbni->gpio_nle, 0); - - oe_reg = __raw_readl(base + AR71XX_GPIO_REG_OE); - out_reg = __raw_readl(base + AR71XX_GPIO_REG_OUT); - - /* set data lines to output mode */ - __raw_writel(oe_reg & ~(RB91X_NAND_DATA_BITS | RB91X_NAND_NRWE), - base + AR71XX_GPIO_REG_OE); - - out = out_reg & ~(RB91X_NAND_DATA_BITS | RB91X_NAND_NRWE); - for (i = 0; i != len; i++) { - u32 data; - - data = (buf[i] & RB91X_NAND_HIGH_DATA_MASK) << - RB91X_NAND_HIGH_DATA_SHIFT; - data |= buf[i] & RB91X_NAND_LOW_DATA_MASK; - data |= out; - __raw_writel(data, base + AR71XX_GPIO_REG_OUT); - - /* deactivate WE line */ - data |= RB91X_NAND_NRWE; - __raw_writel(data, base + AR71XX_GPIO_REG_OUT); - /* flush write */ - __raw_readl(base + AR71XX_GPIO_REG_OUT); - } - - /* restore registers */ - __raw_writel(out_reg, base + AR71XX_GPIO_REG_OUT); - __raw_writel(oe_reg, base + AR71XX_GPIO_REG_OE); - /* flush write */ - __raw_readl(base + AR71XX_GPIO_REG_OUT); - - /* disable the latch */ - gpio_set_value_cansleep(rbni->gpio_nle, 1); -} - -static void rb91x_nand_read(struct rb91x_nand_info *rbni, - u8 *read_buf, - unsigned len) -{ - void __iomem *base = ath79_gpio_base; - u32 oe_reg; - u32 out_reg; - unsigned i; - - /* enable read mode */ - gpio_set_value_cansleep(rbni->gpio_read, 1); - - /* enable latch */ - gpio_set_value_cansleep(rbni->gpio_nle, 0); - - /* save registers */ - oe_reg = __raw_readl(base + AR71XX_GPIO_REG_OE); - out_reg = __raw_readl(base + AR71XX_GPIO_REG_OUT); - - /* set data lines to input mode */ - __raw_writel(oe_reg | RB91X_NAND_DATA_BITS, - base + AR71XX_GPIO_REG_OE); - - for (i = 0; i < len; i++) { - u32 in; - u8 data; - - /* activate RE line */ - __raw_writel(RB91X_NAND_NRWE, base + AR71XX_GPIO_REG_CLEAR); - /* flush write */ - __raw_readl(base + AR71XX_GPIO_REG_CLEAR); - - /* read input lines */ - in = __raw_readl(base + AR71XX_GPIO_REG_IN); - - /* deactivate RE line */ - __raw_writel(RB91X_NAND_NRWE, base + AR71XX_GPIO_REG_SET); - - data = (in & RB91X_NAND_LOW_DATA_MASK); - data |= (in >> RB91X_NAND_HIGH_DATA_SHIFT) & - RB91X_NAND_HIGH_DATA_MASK; - - read_buf[i] = data; - } - - /* restore registers */ - __raw_writel(out_reg, base + AR71XX_GPIO_REG_OUT); - __raw_writel(oe_reg, base + AR71XX_GPIO_REG_OE); - /* flush write */ - __raw_readl(base + AR71XX_GPIO_REG_OUT); - - /* disable latch */ - gpio_set_value_cansleep(rbni->gpio_nle, 1); - - /* disable read mode */ - gpio_set_value_cansleep(rbni->gpio_read, 0); -} - -static int rb91x_nand_dev_ready(struct mtd_info *mtd) -{ - struct rb91x_nand_info *rbni = mtd_to_rbinfo(mtd); - - return gpio_get_value_cansleep(rbni->gpio_rdy); -} - -static void rb91x_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, - unsigned int ctrl) -{ - struct rb91x_nand_info *rbni = mtd_to_rbinfo(mtd); - - if (ctrl & NAND_CTRL_CHANGE) { - gpio_set_value_cansleep(rbni->gpio_cle, - (ctrl & NAND_CLE) ? 1 : 0); - gpio_set_value_cansleep(rbni->gpio_ale, - (ctrl & NAND_ALE) ? 1 : 0); - gpio_set_value_cansleep(rbni->gpio_nce, - (ctrl & NAND_NCE) ? 0 : 1); - } - - if (cmd != NAND_CMD_NONE) { - u8 t = cmd; - - rb91x_nand_write(rbni, &t, 1); - } -} - -static u8 rb91x_nand_read_byte(struct mtd_info *mtd) -{ - struct rb91x_nand_info *rbni = mtd_to_rbinfo(mtd); - u8 data = 0xff; - - rb91x_nand_read(rbni, &data, 1); - - return data; -} - -static void rb91x_nand_read_buf(struct mtd_info *mtd, u8 *buf, int len) -{ - struct rb91x_nand_info *rbni = mtd_to_rbinfo(mtd); - - rb91x_nand_read(rbni, buf, len); -} - -static void rb91x_nand_write_buf(struct mtd_info *mtd, const u8 *buf, int len) -{ - struct rb91x_nand_info *rbni = mtd_to_rbinfo(mtd); - - rb91x_nand_write(rbni, buf, len); -} - -static int rb91x_nand_gpio_init(struct rb91x_nand_info *info) -{ - int ret; - - /* - * Ensure that the LATCH is disabled before initializing - * control lines. - */ - ret = devm_gpio_request_one(info->dev, info->gpio_nle, - GPIOF_OUT_INIT_HIGH, "LATCH enable"); - if (ret) - return ret; - - ret = devm_gpio_request_one(info->dev, info->gpio_nce, - GPIOF_OUT_INIT_HIGH, "NAND nCE"); - if (ret) - return ret; - - ret = devm_gpio_request_one(info->dev, info->gpio_nrw, - GPIOF_OUT_INIT_HIGH, "NAND nRW"); - if (ret) - return ret; - - ret = devm_gpio_request_one(info->dev, info->gpio_cle, - GPIOF_OUT_INIT_LOW, "NAND CLE"); - if (ret) - return ret; - - ret = devm_gpio_request_one(info->dev, info->gpio_ale, - GPIOF_OUT_INIT_LOW, "NAND ALE"); - if (ret) - return ret; - - ret = devm_gpio_request_one(info->dev, info->gpio_read, - GPIOF_OUT_INIT_LOW, "NAND READ"); - if (ret) - return ret; - - ret = devm_gpio_request_one(info->dev, info->gpio_rdy, - GPIOF_IN, "NAND RDY"); - return ret; -} - -static int rb91x_nand_probe(struct platform_device *pdev) -{ - struct rb91x_nand_info *rbni; - struct rb91x_nand_platform_data *pdata; - struct mtd_info *mtd; - int ret; - - pr_info(DRV_DESC "\n"); - - pdata = dev_get_platdata(&pdev->dev); - if (!pdata) - return -EINVAL; - - rbni = devm_kzalloc(&pdev->dev, sizeof(*rbni), GFP_KERNEL); - if (!rbni) - return -ENOMEM; - - rbni->dev = &pdev->dev; - rbni->gpio_nce = pdata->gpio_nce; - rbni->gpio_ale = pdata->gpio_ale; - rbni->gpio_cle = pdata->gpio_cle; - rbni->gpio_read = pdata->gpio_read; - rbni->gpio_nrw = pdata->gpio_nrw; - rbni->gpio_rdy = pdata->gpio_rdy; - rbni->gpio_nle = pdata->gpio_nle; - - rbni->chip.priv = &rbni; - mtd = rbinfo_to_mtd(rbni); - -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0) - mtd->priv = &rbni->chip; -#endif - mtd->owner = THIS_MODULE; - - rbni->chip.cmd_ctrl = rb91x_nand_cmd_ctrl; - rbni->chip.dev_ready = rb91x_nand_dev_ready; - rbni->chip.read_byte = rb91x_nand_read_byte; - rbni->chip.write_buf = rb91x_nand_write_buf; - rbni->chip.read_buf = rb91x_nand_read_buf; - - rbni->chip.chip_delay = 25; - rbni->chip.ecc.mode = NAND_ECC_SOFT; -#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,6,0) - rbni->chip.ecc.algo = NAND_ECC_HAMMING; -#endif - rbni->chip.options = NAND_NO_SUBPAGE_WRITE; - - platform_set_drvdata(pdev, rbni); - - ret = rb91x_nand_gpio_init(rbni); - if (ret) - return ret; - - ret = nand_scan_ident(mtd, 1, NULL); - if (ret) - return ret; - - if (mtd->writesize == 512) -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0) - rbni->chip.ecc.layout = &rb91x_nand_ecclayout; -#else - mtd_set_ooblayout(mtd, &rb91x_nand_ecclayout_ops); -#endif - - ret = nand_scan_tail(mtd); - if (ret) - return ret; - - ret = mtd_device_register(mtd, rb91x_nand_partitions, - ARRAY_SIZE(rb91x_nand_partitions)); - if (ret) - goto err_release_nand; - - return 0; - -err_release_nand: - nand_release(&rbni->chip); - return ret; -} - -static int rb91x_nand_remove(struct platform_device *pdev) -{ - struct rb91x_nand_info *info = platform_get_drvdata(pdev); - - nand_release(&info->chip); - - return 0; -} - -static struct platform_driver rb91x_nand_driver = { - .probe = rb91x_nand_probe, - .remove = rb91x_nand_remove, - .driver = { - .name = RB91X_NAND_DRIVER_NAME, - .owner = THIS_MODULE, - }, -}; - -module_platform_driver(rb91x_nand_driver); - -MODULE_DESCRIPTION(DRV_DESC); -MODULE_VERSION(DRV_VERSION); -MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>"); -MODULE_LICENSE("GPL v2"); diff --git a/target/linux/ar71xx/files/drivers/mtd/tplinkpart.c b/target/linux/ar71xx/files/drivers/mtd/tplinkpart.c deleted file mode 100644 index 1b94163b83..0000000000 --- a/target/linux/ar71xx/files/drivers/mtd/tplinkpart.c +++ /dev/null @@ -1,235 +0,0 @@ -/* - * Copyright (C) 2011 Gabor Juhos <juhosg@openwrt.org> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation. - * - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/slab.h> -#include <linux/vmalloc.h> -#include <linux/magic.h> - -#include <linux/mtd/mtd.h> -#include <linux/mtd/partitions.h> -#include <linux/version.h> - -#define TPLINK_NUM_PARTS 5 -#define TPLINK_HEADER_V1 0x01000000 -#define TPLINK_HEADER_V2 0x02000000 -#define MD5SUM_LEN 16 - -#define TPLINK_ART_LEN 0x10000 -#define TPLINK_KERNEL_OFFS 0x20000 -#define TPLINK_64K_KERNEL_OFFS 0x10000 - -struct tplink_fw_header { - uint32_t version; /* header version */ - char vendor_name[24]; - char fw_version[36]; - uint32_t hw_id; /* hardware id */ - uint32_t hw_rev; /* hardware revision */ - uint32_t unk1; - uint8_t md5sum1[MD5SUM_LEN]; - uint32_t unk2; - uint8_t md5sum2[MD5SUM_LEN]; - uint32_t unk3; - uint32_t kernel_la; /* kernel load address */ - uint32_t kernel_ep; /* kernel entry point */ - uint32_t fw_length; /* total length of the firmware */ - uint32_t kernel_ofs; /* kernel data offset */ - uint32_t kernel_len; /* kernel data length */ - uint32_t rootfs_ofs; /* rootfs data offset */ - uint32_t rootfs_len; /* rootfs data length */ - uint32_t boot_ofs; /* bootloader data offset */ - uint32_t boot_len; /* bootloader data length */ - uint8_t pad[360]; -} __attribute__ ((packed)); - -static struct tplink_fw_header * -tplink_read_header(struct mtd_info *mtd, size_t offset) -{ - struct tplink_fw_header *header; - size_t header_len; - size_t retlen; - int ret; - u32 t; - - header = vmalloc(sizeof(*header)); - if (!header) - goto err; - - header_len = sizeof(struct tplink_fw_header); - ret = mtd_read(mtd, offset, header_len, &retlen, - (unsigned char *) header); - if (ret) - goto err_free_header; - - if (retlen != header_len) - goto err_free_header; - - /* sanity checks */ - t = be32_to_cpu(header->version); - if ((t != TPLINK_HEADER_V1) && (t != TPLINK_HEADER_V2)) - goto err_free_header; - - t = be32_to_cpu(header->kernel_ofs); - if (t != header_len) - goto err_free_header; - - return header; - -err_free_header: - vfree(header); -err: - return NULL; -} - -static int tplink_check_rootfs_magic(struct mtd_info *mtd, size_t offset) -{ - u32 magic; - size_t retlen; - int ret; - - ret = mtd_read(mtd, offset, sizeof(magic), &retlen, - (unsigned char *) &magic); - if (ret) - return ret; - - if (retlen != sizeof(magic)) - return -EIO; - - if (le32_to_cpu(magic) != SQUASHFS_MAGIC && - magic != 0x19852003) - return -EINVAL; - - return 0; -} - -static int tplink_parse_partitions_offset(struct mtd_info *master, -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,5,0) - struct mtd_partition **pparts, -#else - const struct mtd_partition **pparts, -#endif - struct mtd_part_parser_data *data, - size_t offset) -{ - struct mtd_partition *parts; - struct tplink_fw_header *header; - int nr_parts; - size_t art_offset; - size_t rootfs_offset; - size_t squashfs_offset; - int ret; - - nr_parts = TPLINK_NUM_PARTS; - parts = kzalloc(nr_parts * sizeof(struct mtd_partition), GFP_KERNEL); - if (!parts) { - ret = -ENOMEM; - goto err; - } - - header = tplink_read_header(master, offset); - if (!header) { - pr_notice("%s: no TP-Link header found\n", master->name); - ret = -ENODEV; - goto err_free_parts; - } - - squashfs_offset = offset + sizeof(struct tplink_fw_header) + - be32_to_cpu(header->kernel_len); - - ret = tplink_check_rootfs_magic(master, squashfs_offset); - if (ret == 0) - rootfs_offset = squashfs_offset; - else - rootfs_offset = offset + be32_to_cpu(header->rootfs_ofs); - - art_offset = master->size - TPLINK_ART_LEN; - - parts[0].name = "u-boot"; - parts[0].offset = 0; - parts[0].size = offset; - parts[0].mask_flags = MTD_WRITEABLE; - - parts[1].name = "kernel"; - parts[1].offset = offset; - parts[1].size = rootfs_offset - offset; - - parts[2].name = "rootfs"; - parts[2].offset = rootfs_offset; - parts[2].size = art_offset - rootfs_offset; - - parts[3].name = "art"; - parts[3].offset = art_offset; - parts[3].size = TPLINK_ART_LEN; - parts[3].mask_flags = MTD_WRITEABLE; - - parts[4].name = "firmware"; - parts[4].offset = offset; - parts[4].size = art_offset - offset; - - vfree(header); - - *pparts = parts; - return nr_parts; - -err_free_parts: - kfree(parts); -err: - *pparts = NULL; - return ret; -} - -static int tplink_parse_partitions(struct mtd_info *master, -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,5,0) - struct mtd_partition **pparts, -#else - const struct mtd_partition **pparts, -#endif - struct mtd_part_parser_data *data) -{ - return tplink_parse_partitions_offset(master, pparts, data, - TPLINK_KERNEL_OFFS); -} - -static int tplink_parse_64k_partitions(struct mtd_info *master, -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,5,0) - struct mtd_partition **pparts, -#else - const struct mtd_partition **pparts, -#endif - struct mtd_part_parser_data *data) -{ - return tplink_parse_partitions_offset(master, pparts, data, - TPLINK_64K_KERNEL_OFFS); -} - -static struct mtd_part_parser tplink_parser = { - .owner = THIS_MODULE, - .parse_fn = tplink_parse_partitions, - .name = "tp-link", -}; - -static struct mtd_part_parser tplink_64k_parser = { - .owner = THIS_MODULE, - .parse_fn = tplink_parse_64k_partitions, - .name = "tp-link-64k", -}; - -static int __init tplink_parser_init(void) -{ - register_mtd_parser(&tplink_parser); - register_mtd_parser(&tplink_64k_parser); - - return 0; -} - -module_init(tplink_parser_init); - -MODULE_LICENSE("GPL v2"); -MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>"); diff --git a/target/linux/ar71xx/files/drivers/net/dsa/mv88e6063.c b/target/linux/ar71xx/files/drivers/net/dsa/mv88e6063.c deleted file mode 100644 index 71ecd61c80..0000000000 --- a/target/linux/ar71xx/files/drivers/net/dsa/mv88e6063.c +++ /dev/null @@ -1,307 +0,0 @@ -/* - * net/dsa/mv88e6063.c - Driver for Marvell 88e6063 switch chips - * Copyright (c) 2009 Gabor Juhos <juhosg@openwrt.org> - * - * This driver was base on: net/dsa/mv88e6060.c - * net/dsa/mv88e6063.c - Driver for Marvell 88e6060 switch chips - * Copyright (c) 2008-2009 Marvell Semiconductor - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - */ - -#include <linux/version.h> -#include <linux/list.h> -#include <linux/netdevice.h> -#include <linux/phy.h> -#include <net/dsa.h> -#include <linux/version.h> - -#define REG_BASE 0x10 -#define REG_PHY(p) (REG_BASE + (p)) -#define REG_PORT(p) (REG_BASE + 8 + (p)) -#define REG_GLOBAL (REG_BASE + 0x0f) -#define NUM_PORTS 7 - -static int reg_read(struct dsa_switch *ds, int addr, int reg) -{ -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,7,0) - struct mii_bus *bus = dsa_host_dev_to_mii_bus(ds->master_dev); - return mdiobus_read(bus, addr, reg); -#else - struct mii_bus *bus = dsa_host_dev_to_mii_bus(ds->dev); - return mdiobus_read(bus, addr, reg); -#endif -} - -#define REG_READ(addr, reg) \ - ({ \ - int __ret; \ - \ - __ret = reg_read(ds, addr, reg); \ - if (__ret < 0) \ - return __ret; \ - __ret; \ - }) - - -static int reg_write(struct dsa_switch *ds, int addr, int reg, u16 val) -{ -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,7,0) - struct mii_bus *bus = dsa_host_dev_to_mii_bus(ds->master_dev); - return mdiobus_write(bus, addr, reg, val); -#else - struct mii_bus *bus = dsa_host_dev_to_mii_bus(ds->dev); - return mdiobus_write(bus, addr, reg, val); -#endif -} - -#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,8,0) -static enum dsa_tag_protocol mv88e6063_get_tag_protocol(struct dsa_switch *ds) -{ - return DSA_TAG_PROTO_TRAILER; -} -#endif - -#define REG_WRITE(addr, reg, val) \ - ({ \ - int __ret; \ - \ - __ret = reg_write(ds, addr, reg, val); \ - if (__ret < 0) \ - return __ret; \ - }) - -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,7,0) -static char *mv88e6063_drv_probe(struct device *host_dev, int sw_addr) -#else -static const char *mv88e6063_drv_probe(struct device *dsa_dev, - struct device *host_dev, int sw_addr, - void **_priv) -#endif -{ - struct mii_bus *bus = dsa_host_dev_to_mii_bus(host_dev); - int ret; - - if (!bus) - return NULL; - - ret = mdiobus_read(bus, REG_PORT(0), 0x03); - if (ret >= 0) { - ret &= 0xfff0; - if (ret == 0x1530) - return "Marvell 88E6063"; - } - - return NULL; -} - -static int mv88e6063_switch_reset(struct dsa_switch *ds) -{ - int i; - int ret; - - /* - * Set all ports to the disabled state. - */ - for (i = 0; i < NUM_PORTS; i++) { - ret = REG_READ(REG_PORT(i), 0x04); - REG_WRITE(REG_PORT(i), 0x04, ret & 0xfffc); - } - - /* - * Wait for transmit queues to drain. - */ - msleep(2); - - /* - * Reset the switch. - */ - REG_WRITE(REG_GLOBAL, 0x0a, 0xa130); - - /* - * Wait up to one second for reset to complete. - */ - for (i = 0; i < 1000; i++) { - ret = REG_READ(REG_GLOBAL, 0x00); - if ((ret & 0x8000) == 0x0000) - break; - - msleep(1); - } - if (i == 1000) - return -ETIMEDOUT; - - return 0; -} - -static int mv88e6063_setup_global(struct dsa_switch *ds) -{ - /* - * Disable discarding of frames with excessive collisions, - * set the maximum frame size to 1536 bytes, and mask all - * interrupt sources. - */ - REG_WRITE(REG_GLOBAL, 0x04, 0x0800); - - /* - * Enable automatic address learning, set the address - * database size to 1024 entries, and set the default aging - * time to 5 minutes. - */ - REG_WRITE(REG_GLOBAL, 0x0a, 0x2130); - - return 0; -} - -static int mv88e6063_setup_port(struct dsa_switch *ds, int p) -{ - int addr = REG_PORT(p); - - /* - * Do not force flow control, disable Ingress and Egress - * Header tagging, disable VLAN tunneling, and set the port - * state to Forwarding. Additionally, if this is the CPU - * port, enable Ingress and Egress Trailer tagging mode. - */ - REG_WRITE(addr, 0x04, dsa_is_cpu_port(ds, p) ? 0x4103 : 0x0003); - - /* - * Port based VLAN map: give each port its own address - * database, allow the CPU port to talk to each of the 'real' - * ports, and allow each of the 'real' ports to only talk to - * the CPU port. - */ - REG_WRITE(addr, 0x06, - ((p & 0xf) << 12) | - (dsa_is_cpu_port(ds, p) ? -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,7,0) - ds->phys_port_mask : -#else - ds->enabled_port_mask : -#endif -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,14,0) - (1 << ds->dst->cpu_port))); -#else - (1 << ds->dst->cpu_dp->index))); -#endif - - /* - * Port Association Vector: when learning source addresses - * of packets, add the address to the address database using - * a port bitmap that has only the bit for this port set and - * the other bits clear. - */ - REG_WRITE(addr, 0x0b, 1 << p); - - return 0; -} - -static int mv88e6063_setup(struct dsa_switch *ds) -{ - int i; - int ret; - - ret = mv88e6063_switch_reset(ds); - if (ret < 0) - return ret; - - /* @@@ initialise atu */ - - ret = mv88e6063_setup_global(ds); - if (ret < 0) - return ret; - - for (i = 0; i < NUM_PORTS; i++) { - ret = mv88e6063_setup_port(ds, i); - if (ret < 0) - return ret; - } - - return 0; -} - -static int mv88e6063_set_addr(struct dsa_switch *ds, u8 *addr) -{ - REG_WRITE(REG_GLOBAL, 0x01, (addr[0] << 8) | addr[1]); - REG_WRITE(REG_GLOBAL, 0x02, (addr[2] << 8) | addr[3]); - REG_WRITE(REG_GLOBAL, 0x03, (addr[4] << 8) | addr[5]); - - return 0; -} - -static int mv88e6063_port_to_phy_addr(int port) -{ - if (port >= 0 && port <= NUM_PORTS) - return REG_PHY(port); - return -1; -} - -static int mv88e6063_phy_read(struct dsa_switch *ds, int port, int regnum) -{ - int addr; - - addr = mv88e6063_port_to_phy_addr(port); - if (addr == -1) - return 0xffff; - - return reg_read(ds, addr, regnum); -} - -static int -mv88e6063_phy_write(struct dsa_switch *ds, int port, int regnum, u16 val) -{ - int addr; - - addr = mv88e6063_port_to_phy_addr(port); - if (addr == -1) - return 0xffff; - - return reg_write(ds, addr, regnum, val); -} - -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,9,0) -static struct dsa_switch_driver mv88e6063_switch_ops = { -#else -static struct dsa_switch_ops mv88e6063_switch_ops = { -#endif -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,8,0) - .tag_protocol = htons(ETH_P_TRAILER), -#else - .get_tag_protocol = mv88e6063_get_tag_protocol, -#endif - .probe = mv88e6063_drv_probe, - .setup = mv88e6063_setup, - .set_addr = mv88e6063_set_addr, - .phy_read = mv88e6063_phy_read, - .phy_write = mv88e6063_phy_write, -}; - -#if LINUX_VERSION_CODE > KERNEL_VERSION(4,13,0) -static struct dsa_switch_driver mv88e6063_switch_drv = { - .ops = &mv88e6063_switch_ops, -}; -#endif - -static int __init mv88e6063_init(void) -{ -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,14,0) - register_switch_driver(&mv88e6063_switch_ops); -#else - register_switch_driver(&mv88e6063_switch_drv); -#endif - return 0; -} -module_init(mv88e6063_init); - -static void __exit mv88e6063_cleanup(void) -{ -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,14,0) - unregister_switch_driver(&mv88e6063_switch_ops); -#else - unregister_switch_driver(&mv88e6063_switch_drv); -#endif -} -module_exit(mv88e6063_cleanup); diff --git a/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/Kconfig b/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/Kconfig deleted file mode 100644 index 42d544f731..0000000000 --- a/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/Kconfig +++ /dev/null @@ -1,33 +0,0 @@ -config AG71XX - tristate "Atheros AR7XXX/AR9XXX built-in ethernet mac support" - depends on ATH79 - select PHYLIB - help - If you wish to compile a kernel for AR7XXX/91XXX and enable - ethernet support, then you should always answer Y to this. - -if AG71XX - -config AG71XX_DEBUG - bool "Atheros AR71xx built-in ethernet driver debugging" - default n - help - Atheros AR71xx built-in ethernet driver debugging messages. - -config AG71XX_DEBUG_FS - bool "Atheros AR71xx built-in ethernet driver debugfs support" - depends on DEBUG_FS - default n - help - Say Y, if you need access to various statistics provided by - the ag71xx driver. - -config AG71XX_AR8216_SUPPORT - bool "special support for the Atheros AR8216 switch" - default n - default y if ATH79_MACH_WNR2000 || ATH79_MACH_MZK_W04NU - help - Say 'y' here if you want to enable special support for the - Atheros AR8216 switch found on some boards. - -endif diff --git a/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/Makefile b/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/Makefile deleted file mode 100644 index b3ec4084c8..0000000000 --- a/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/Makefile +++ /dev/null @@ -1,15 +0,0 @@ -# -# Makefile for the Atheros AR71xx built-in ethernet macs -# - -ag71xx-y += ag71xx_main.o -ag71xx-y += ag71xx_ethtool.o -ag71xx-y += ag71xx_phy.o -ag71xx-y += ag71xx_mdio.o -ag71xx-y += ag71xx_ar7240.o - -ag71xx-$(CONFIG_AG71XX_DEBUG_FS) += ag71xx_debugfs.o -ag71xx-$(CONFIG_AG71XX_AR8216_SUPPORT) += ag71xx_ar8216.o - -obj-$(CONFIG_AG71XX) += ag71xx.o - diff --git a/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx.h b/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx.h deleted file mode 100644 index 2d9a865043..0000000000 --- a/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx.h +++ /dev/null @@ -1,508 +0,0 @@ -/* - * Atheros AR71xx built-in ethernet mac driver - * - * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org> - * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org> - * - * Based on Atheros' AG7100 driver - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation. - */ - -#ifndef __AG71XX_H -#define __AG71XX_H - -#include <linux/kernel.h> -#include <linux/version.h> -#include <linux/module.h> -#include <linux/init.h> -#include <linux/types.h> -#include <linux/random.h> -#include <linux/spinlock.h> -#include <linux/interrupt.h> -#include <linux/platform_device.h> -#include <linux/ethtool.h> -#include <linux/etherdevice.h> -#include <linux/if_vlan.h> -#include <linux/phy.h> -#include <linux/skbuff.h> -#include <linux/dma-mapping.h> -#include <linux/workqueue.h> - -#include <linux/bitops.h> - -#include <asm/mach-ath79/ar71xx_regs.h> -#include <asm/mach-ath79/ath79.h> -#include <asm/mach-ath79/ag71xx_platform.h> - -#define AG71XX_DRV_NAME "ag71xx" -#define AG71XX_DRV_VERSION "0.5.35" - -/* - * For our NAPI weight bigger does *NOT* mean better - it means more - * D-cache misses and lots more wasted cycles than we'll ever - * possibly gain from saving instructions. - */ -#define AG71XX_NAPI_WEIGHT 32 -#define AG71XX_OOM_REFILL (1 + HZ/10) - -#define AG71XX_INT_ERR (AG71XX_INT_RX_BE | AG71XX_INT_TX_BE) -#define AG71XX_INT_TX (AG71XX_INT_TX_PS) -#define AG71XX_INT_RX (AG71XX_INT_RX_PR | AG71XX_INT_RX_OF) - -#define AG71XX_INT_POLL (AG71XX_INT_RX | AG71XX_INT_TX) -#define AG71XX_INT_INIT (AG71XX_INT_ERR | AG71XX_INT_POLL) - -#define AG71XX_TX_MTU_LEN 1540 - -#define AG71XX_TX_RING_SPLIT 512 -#define AG71XX_TX_RING_DS_PER_PKT DIV_ROUND_UP(AG71XX_TX_MTU_LEN, \ - AG71XX_TX_RING_SPLIT) -#define AG71XX_TX_RING_SIZE_DEFAULT 128 -#define AG71XX_RX_RING_SIZE_DEFAULT 256 - -#define AG71XX_TX_RING_SIZE_MAX 128 -#define AG71XX_RX_RING_SIZE_MAX 256 - -#define QCA955X_SGMII_LINK_WAR_MAX_TRY 10 - -#ifdef CONFIG_AG71XX_DEBUG -#define DBG(fmt, args...) pr_debug(fmt, ## args) -#else -#define DBG(fmt, args...) do {} while (0) -#endif - -#define ag71xx_assert(_cond) \ -do { \ - if (_cond) \ - break; \ - printk("%s,%d: assertion failed\n", __FILE__, __LINE__); \ - BUG(); \ -} while (0) - -struct ag71xx_desc { - u32 data; - u32 ctrl; -#define DESC_EMPTY BIT(31) -#define DESC_MORE BIT(24) -#define DESC_PKTLEN_M 0xfff - u32 next; - u32 pad; -} __attribute__((aligned(4))); - -#define AG71XX_DESC_SIZE roundup(sizeof(struct ag71xx_desc), \ - L1_CACHE_BYTES) - -struct ag71xx_buf { - union { - struct sk_buff *skb; - void *rx_buf; - }; - union { - dma_addr_t dma_addr; - unsigned int len; - }; -}; - -struct ag71xx_ring { - struct ag71xx_buf *buf; - u8 *descs_cpu; - dma_addr_t descs_dma; - u16 desc_split; - u16 order; - unsigned int curr; - unsigned int dirty; -}; - -struct ag71xx_mdio { - struct mii_bus *mii_bus; -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,5,0) - int mii_irq[PHY_MAX_ADDR]; -#endif - void __iomem *mdio_base; - struct ag71xx_mdio_platform_data *pdata; -}; - -struct ag71xx_int_stats { - unsigned long rx_pr; - unsigned long rx_be; - unsigned long rx_of; - unsigned long tx_ps; - unsigned long tx_be; - unsigned long tx_ur; - unsigned long total; -}; - -struct ag71xx_napi_stats { - unsigned long napi_calls; - unsigned long rx_count; - unsigned long rx_packets; - unsigned long rx_packets_max; - unsigned long tx_count; - unsigned long tx_packets; - unsigned long tx_packets_max; - - unsigned long rx[AG71XX_NAPI_WEIGHT + 1]; - unsigned long tx[AG71XX_NAPI_WEIGHT + 1]; -}; - -struct ag71xx_debug { - struct dentry *debugfs_dir; - - struct ag71xx_int_stats int_stats; - struct ag71xx_napi_stats napi_stats; -}; - -struct ag71xx { - /* - * Critical data related to the per-packet data path are clustered - * early in this structure to help improve the D-cache footprint. - */ - struct ag71xx_ring rx_ring ____cacheline_aligned; - struct ag71xx_ring tx_ring ____cacheline_aligned; - - unsigned int max_frame_len; - unsigned int desc_pktlen_mask; - unsigned int rx_buf_size; - - struct net_device *dev; - struct platform_device *pdev; - spinlock_t lock; - struct napi_struct napi; - u32 msg_enable; - - /* - * From this point onwards we're not looking at per-packet fields. - */ - void __iomem *mac_base; - - struct ag71xx_desc *stop_desc; - dma_addr_t stop_desc_dma; - - struct mii_bus *mii_bus; - struct phy_device *phy_dev; - void *phy_priv; - - unsigned int link; - unsigned int speed; - int duplex; - - struct delayed_work restart_work; - struct delayed_work link_work; - struct timer_list oom_timer; - -#ifdef CONFIG_AG71XX_DEBUG_FS - struct ag71xx_debug debug; -#endif -}; - -extern struct ethtool_ops ag71xx_ethtool_ops; -void ag71xx_link_adjust(struct ag71xx *ag); - -int ag71xx_mdio_driver_init(void) __init; -void ag71xx_mdio_driver_exit(void); - -int ag71xx_phy_connect(struct ag71xx *ag); -void ag71xx_phy_disconnect(struct ag71xx *ag); -void ag71xx_phy_start(struct ag71xx *ag); -void ag71xx_phy_stop(struct ag71xx *ag); - -static inline struct ag71xx_platform_data *ag71xx_get_pdata(struct ag71xx *ag) -{ - return ag->pdev->dev.platform_data; -} - -static inline int ag71xx_desc_empty(struct ag71xx_desc *desc) -{ - return (desc->ctrl & DESC_EMPTY) != 0; -} - -static inline struct ag71xx_desc * -ag71xx_ring_desc(struct ag71xx_ring *ring, int idx) -{ - return (struct ag71xx_desc *) &ring->descs_cpu[idx * AG71XX_DESC_SIZE]; -} - -static inline int -ag71xx_ring_size_order(int size) -{ - return fls(size - 1); -} - -/* Register offsets */ -#define AG71XX_REG_MAC_CFG1 0x0000 -#define AG71XX_REG_MAC_CFG2 0x0004 -#define AG71XX_REG_MAC_IPG 0x0008 -#define AG71XX_REG_MAC_HDX 0x000c -#define AG71XX_REG_MAC_MFL 0x0010 -#define AG71XX_REG_MII_CFG 0x0020 -#define AG71XX_REG_MII_CMD 0x0024 -#define AG71XX_REG_MII_ADDR 0x0028 -#define AG71XX_REG_MII_CTRL 0x002c -#define AG71XX_REG_MII_STATUS 0x0030 -#define AG71XX_REG_MII_IND 0x0034 -#define AG71XX_REG_MAC_IFCTL 0x0038 -#define AG71XX_REG_MAC_ADDR1 0x0040 -#define AG71XX_REG_MAC_ADDR2 0x0044 -#define AG71XX_REG_FIFO_CFG0 0x0048 -#define AG71XX_REG_FIFO_CFG1 0x004c -#define AG71XX_REG_FIFO_CFG2 0x0050 -#define AG71XX_REG_FIFO_CFG3 0x0054 -#define AG71XX_REG_FIFO_CFG4 0x0058 -#define AG71XX_REG_FIFO_CFG5 0x005c -#define AG71XX_REG_FIFO_RAM0 0x0060 -#define AG71XX_REG_FIFO_RAM1 0x0064 -#define AG71XX_REG_FIFO_RAM2 0x0068 -#define AG71XX_REG_FIFO_RAM3 0x006c -#define AG71XX_REG_FIFO_RAM4 0x0070 -#define AG71XX_REG_FIFO_RAM5 0x0074 -#define AG71XX_REG_FIFO_RAM6 0x0078 -#define AG71XX_REG_FIFO_RAM7 0x007c - -#define AG71XX_REG_TX_CTRL 0x0180 -#define AG71XX_REG_TX_DESC 0x0184 -#define AG71XX_REG_TX_STATUS 0x0188 -#define AG71XX_REG_RX_CTRL 0x018c -#define AG71XX_REG_RX_DESC 0x0190 -#define AG71XX_REG_RX_STATUS 0x0194 -#define AG71XX_REG_INT_ENABLE 0x0198 -#define AG71XX_REG_INT_STATUS 0x019c - -#define AG71XX_REG_FIFO_DEPTH 0x01a8 -#define AG71XX_REG_RX_SM 0x01b0 -#define AG71XX_REG_TX_SM 0x01b4 - -#define MAC_CFG1_TXE BIT(0) /* Tx Enable */ -#define MAC_CFG1_STX BIT(1) /* Synchronize Tx Enable */ -#define MAC_CFG1_RXE BIT(2) /* Rx Enable */ -#define MAC_CFG1_SRX BIT(3) /* Synchronize Rx Enable */ -#define MAC_CFG1_TFC BIT(4) /* Tx Flow Control Enable */ -#define MAC_CFG1_RFC BIT(5) /* Rx Flow Control Enable */ -#define MAC_CFG1_LB BIT(8) /* Loopback mode */ -#define MAC_CFG1_SR BIT(31) /* Soft Reset */ - -#define MAC_CFG2_FDX BIT(0) -#define MAC_CFG2_CRC_EN BIT(1) -#define MAC_CFG2_PAD_CRC_EN BIT(2) -#define MAC_CFG2_LEN_CHECK BIT(4) -#define MAC_CFG2_HUGE_FRAME_EN BIT(5) -#define MAC_CFG2_IF_1000 BIT(9) -#define MAC_CFG2_IF_10_100 BIT(8) - -#define FIFO_CFG0_WTM BIT(0) /* Watermark Module */ -#define FIFO_CFG0_RXS BIT(1) /* Rx System Module */ -#define FIFO_CFG0_RXF BIT(2) /* Rx Fabric Module */ -#define FIFO_CFG0_TXS BIT(3) /* Tx System Module */ -#define FIFO_CFG0_TXF BIT(4) /* Tx Fabric Module */ -#define FIFO_CFG0_ALL (FIFO_CFG0_WTM | FIFO_CFG0_RXS | FIFO_CFG0_RXF \ - | FIFO_CFG0_TXS | FIFO_CFG0_TXF) - -#define FIFO_CFG0_ENABLE_SHIFT 8 - -#define FIFO_CFG4_DE BIT(0) /* Drop Event */ -#define FIFO_CFG4_DV BIT(1) /* RX_DV Event */ -#define FIFO_CFG4_FC BIT(2) /* False Carrier */ -#define FIFO_CFG4_CE BIT(3) /* Code Error */ -#define FIFO_CFG4_CR BIT(4) /* CRC error */ -#define FIFO_CFG4_LM BIT(5) /* Length Mismatch */ -#define FIFO_CFG4_LO BIT(6) /* Length out of range */ -#define FIFO_CFG4_OK BIT(7) /* Packet is OK */ -#define FIFO_CFG4_MC BIT(8) /* Multicast Packet */ -#define FIFO_CFG4_BC BIT(9) /* Broadcast Packet */ -#define FIFO_CFG4_DR BIT(10) /* Dribble */ -#define FIFO_CFG4_LE BIT(11) /* Long Event */ -#define FIFO_CFG4_CF BIT(12) /* Control Frame */ -#define FIFO_CFG4_PF BIT(13) /* Pause Frame */ -#define FIFO_CFG4_UO BIT(14) /* Unsupported Opcode */ -#define FIFO_CFG4_VT BIT(15) /* VLAN tag detected */ -#define FIFO_CFG4_FT BIT(16) /* Frame Truncated */ -#define FIFO_CFG4_UC BIT(17) /* Unicast Packet */ - -#define FIFO_CFG5_DE BIT(0) /* Drop Event */ -#define FIFO_CFG5_DV BIT(1) /* RX_DV Event */ -#define FIFO_CFG5_FC BIT(2) /* False Carrier */ -#define FIFO_CFG5_CE BIT(3) /* Code Error */ -#define FIFO_CFG5_LM BIT(4) /* Length Mismatch */ -#define FIFO_CFG5_LO BIT(5) /* Length Out of Range */ -#define FIFO_CFG5_OK BIT(6) /* Packet is OK */ -#define FIFO_CFG5_MC BIT(7) /* Multicast Packet */ -#define FIFO_CFG5_BC BIT(8) /* Broadcast Packet */ -#define FIFO_CFG5_DR BIT(9) /* Dribble */ -#define FIFO_CFG5_CF BIT(10) /* Control Frame */ -#define FIFO_CFG5_PF BIT(11) /* Pause Frame */ -#define FIFO_CFG5_UO BIT(12) /* Unsupported Opcode */ -#define FIFO_CFG5_VT BIT(13) /* VLAN tag detected */ -#define FIFO_CFG5_LE BIT(14) /* Long Event */ -#define FIFO_CFG5_FT BIT(15) /* Frame Truncated */ -#define FIFO_CFG5_16 BIT(16) /* unknown */ -#define FIFO_CFG5_17 BIT(17) /* unknown */ -#define FIFO_CFG5_SF BIT(18) /* Short Frame */ -#define FIFO_CFG5_BM BIT(19) /* Byte Mode */ - -#define AG71XX_INT_TX_PS BIT(0) -#define AG71XX_INT_TX_UR BIT(1) -#define AG71XX_INT_TX_BE BIT(3) -#define AG71XX_INT_RX_PR BIT(4) -#define AG71XX_INT_RX_OF BIT(6) -#define AG71XX_INT_RX_BE BIT(7) - -#define MAC_IFCTL_SPEED BIT(16) - -#define MII_CFG_CLK_DIV_4 0 -#define MII_CFG_CLK_DIV_6 2 -#define MII_CFG_CLK_DIV_8 3 -#define MII_CFG_CLK_DIV_10 4 -#define MII_CFG_CLK_DIV_14 5 -#define MII_CFG_CLK_DIV_20 6 -#define MII_CFG_CLK_DIV_28 7 -#define MII_CFG_CLK_DIV_34 8 -#define MII_CFG_CLK_DIV_42 9 -#define MII_CFG_CLK_DIV_50 10 -#define MII_CFG_CLK_DIV_58 11 -#define MII_CFG_CLK_DIV_66 12 -#define MII_CFG_CLK_DIV_74 13 -#define MII_CFG_CLK_DIV_82 14 -#define MII_CFG_CLK_DIV_98 15 -#define MII_CFG_RESET BIT(31) - -#define MII_CMD_WRITE 0x0 -#define MII_CMD_READ 0x1 -#define MII_ADDR_SHIFT 8 -#define MII_IND_BUSY BIT(0) -#define MII_IND_INVALID BIT(2) - -#define TX_CTRL_TXE BIT(0) /* Tx Enable */ - -#define TX_STATUS_PS BIT(0) /* Packet Sent */ -#define TX_STATUS_UR BIT(1) /* Tx Underrun */ -#define TX_STATUS_BE BIT(3) /* Bus Error */ - -#define RX_CTRL_RXE BIT(0) /* Rx Enable */ - -#define RX_STATUS_PR BIT(0) /* Packet Received */ -#define RX_STATUS_OF BIT(2) /* Rx Overflow */ -#define RX_STATUS_BE BIT(3) /* Bus Error */ - -static inline void ag71xx_check_reg_offset(struct ag71xx *ag, unsigned reg) -{ - switch (reg) { - case AG71XX_REG_MAC_CFG1 ... AG71XX_REG_MAC_MFL: - case AG71XX_REG_MAC_IFCTL ... AG71XX_REG_TX_SM: - case AG71XX_REG_MII_CFG: - break; - - default: - BUG(); - } -} - -static inline void ag71xx_wr(struct ag71xx *ag, unsigned reg, u32 value) -{ - ag71xx_check_reg_offset(ag, reg); - - __raw_writel(value, ag->mac_base + reg); - /* flush write */ - (void) __raw_readl(ag->mac_base + reg); -} - -static inline u32 ag71xx_rr(struct ag71xx *ag, unsigned reg) -{ - ag71xx_check_reg_offset(ag, reg); - - return __raw_readl(ag->mac_base + reg); -} - -static inline void ag71xx_sb(struct ag71xx *ag, unsigned reg, u32 mask) -{ - void __iomem *r; - - ag71xx_check_reg_offset(ag, reg); - - r = ag->mac_base + reg; - __raw_writel(__raw_readl(r) | mask, r); - /* flush write */ - (void)__raw_readl(r); -} - -static inline void ag71xx_cb(struct ag71xx *ag, unsigned reg, u32 mask) -{ - void __iomem *r; - - ag71xx_check_reg_offset(ag, reg); - - r = ag->mac_base + reg; - __raw_writel(__raw_readl(r) & ~mask, r); - /* flush write */ - (void) __raw_readl(r); -} - -static inline void ag71xx_int_enable(struct ag71xx *ag, u32 ints) -{ - ag71xx_sb(ag, AG71XX_REG_INT_ENABLE, ints); -} - -static inline void ag71xx_int_disable(struct ag71xx *ag, u32 ints) -{ - ag71xx_cb(ag, AG71XX_REG_INT_ENABLE, ints); -} - -#ifdef CONFIG_AG71XX_AR8216_SUPPORT -void ag71xx_add_ar8216_header(struct ag71xx *ag, struct sk_buff *skb); -int ag71xx_remove_ar8216_header(struct ag71xx *ag, struct sk_buff *skb, - int pktlen); -static inline int ag71xx_has_ar8216(struct ag71xx *ag) -{ - return ag71xx_get_pdata(ag)->has_ar8216; -} -#else -static inline void ag71xx_add_ar8216_header(struct ag71xx *ag, - struct sk_buff *skb) -{ -} - -static inline int ag71xx_remove_ar8216_header(struct ag71xx *ag, - struct sk_buff *skb, - int pktlen) -{ - return 0; -} -static inline int ag71xx_has_ar8216(struct ag71xx *ag) -{ - return 0; -} -#endif - -#ifdef CONFIG_AG71XX_DEBUG_FS -int ag71xx_debugfs_root_init(void); -void ag71xx_debugfs_root_exit(void); -int ag71xx_debugfs_init(struct ag71xx *ag); -void ag71xx_debugfs_exit(struct ag71xx *ag); -void ag71xx_debugfs_update_int_stats(struct ag71xx *ag, u32 status); -void ag71xx_debugfs_update_napi_stats(struct ag71xx *ag, int rx, int tx); -#else -static inline int ag71xx_debugfs_root_init(void) { return 0; } -static inline void ag71xx_debugfs_root_exit(void) {} -static inline int ag71xx_debugfs_init(struct ag71xx *ag) { return 0; } -static inline void ag71xx_debugfs_exit(struct ag71xx *ag) {} -static inline void ag71xx_debugfs_update_int_stats(struct ag71xx *ag, - u32 status) {} -static inline void ag71xx_debugfs_update_napi_stats(struct ag71xx *ag, - int rx, int tx) {} -#endif /* CONFIG_AG71XX_DEBUG_FS */ - -void ag71xx_ar7240_start(struct ag71xx *ag); -void ag71xx_ar7240_stop(struct ag71xx *ag); -int ag71xx_ar7240_init(struct ag71xx *ag); -void ag71xx_ar7240_cleanup(struct ag71xx *ag); - -int ag71xx_mdio_mii_read(struct ag71xx_mdio *am, int addr, int reg); -void ag71xx_mdio_mii_write(struct ag71xx_mdio *am, int addr, int reg, u16 val); - -u16 ar7240sw_phy_read(struct mii_bus *mii, unsigned phy_addr, - unsigned reg_addr); -int ar7240sw_phy_write(struct mii_bus *mii, unsigned phy_addr, - unsigned reg_addr, u16 reg_val); - -#endif /* _AG71XX_H */ diff --git a/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_ar7240.c b/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_ar7240.c deleted file mode 100644 index 2859c0dbe1..0000000000 --- a/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_ar7240.c +++ /dev/null @@ -1,1386 +0,0 @@ -/* - * Driver for the built-in ethernet switch of the Atheros AR7240 SoC - * Copyright (c) 2010 Gabor Juhos <juhosg@openwrt.org> - * Copyright (c) 2010 Felix Fietkau <nbd@nbd.name> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation. - * - */ - -#include <linux/etherdevice.h> -#include <linux/list.h> -#include <linux/netdevice.h> -#include <linux/phy.h> -#include <linux/mii.h> -#include <linux/bitops.h> -#include <linux/switch.h> -#include "ag71xx.h" - -#define BITM(_count) (BIT(_count) - 1) -#define BITS(_shift, _count) (BITM(_count) << _shift) - -#define AR7240_REG_MASK_CTRL 0x00 -#define AR7240_MASK_CTRL_REVISION_M BITM(8) -#define AR7240_MASK_CTRL_VERSION_M BITM(8) -#define AR7240_MASK_CTRL_VERSION_S 8 -#define AR7240_MASK_CTRL_VERSION_AR7240 0x01 -#define AR7240_MASK_CTRL_VERSION_AR934X 0x02 -#define AR7240_MASK_CTRL_SOFT_RESET BIT(31) - -#define AR7240_REG_MAC_ADDR0 0x20 -#define AR7240_REG_MAC_ADDR1 0x24 - -#define AR7240_REG_FLOOD_MASK 0x2c -#define AR7240_FLOOD_MASK_BROAD_TO_CPU BIT(26) - -#define AR7240_REG_GLOBAL_CTRL 0x30 -#define AR7240_GLOBAL_CTRL_MTU_M BITM(11) -#define AR9340_GLOBAL_CTRL_MTU_M BITM(14) - -#define AR7240_REG_VTU 0x0040 -#define AR7240_VTU_OP BITM(3) -#define AR7240_VTU_OP_NOOP 0x0 -#define AR7240_VTU_OP_FLUSH 0x1 -#define AR7240_VTU_OP_LOAD 0x2 -#define AR7240_VTU_OP_PURGE 0x3 -#define AR7240_VTU_OP_REMOVE_PORT 0x4 -#define AR7240_VTU_ACTIVE BIT(3) -#define AR7240_VTU_FULL BIT(4) -#define AR7240_VTU_PORT BITS(8, 4) -#define AR7240_VTU_PORT_S 8 -#define AR7240_VTU_VID BITS(16, 12) -#define AR7240_VTU_VID_S 16 -#define AR7240_VTU_PRIO BITS(28, 3) -#define AR7240_VTU_PRIO_S 28 -#define AR7240_VTU_PRIO_EN BIT(31) - -#define AR7240_REG_VTU_DATA 0x0044 -#define AR7240_VTUDATA_MEMBER BITS(0, 10) -#define AR7240_VTUDATA_VALID BIT(11) - -#define AR7240_REG_ATU 0x50 -#define AR7240_ATU_FLUSH_ALL 0x1 - -#define AR7240_REG_AT_CTRL 0x5c -#define AR7240_AT_CTRL_AGE_TIME BITS(0, 15) -#define AR7240_AT_CTRL_AGE_EN BIT(17) -#define AR7240_AT_CTRL_LEARN_CHANGE BIT(18) -#define AR7240_AT_CTRL_RESERVED BIT(19) -#define AR7240_AT_CTRL_ARP_EN BIT(20) - -#define AR7240_REG_TAG_PRIORITY 0x70 - -#define AR7240_REG_SERVICE_TAG 0x74 -#define AR7240_SERVICE_TAG_M BITM(16) - -#define AR7240_REG_CPU_PORT 0x78 -#define AR7240_MIRROR_PORT_S 4 -#define AR7240_MIRROR_PORT_M BITM(4) -#define AR7240_CPU_PORT_EN BIT(8) - -#define AR7240_REG_MIB_FUNCTION0 0x80 -#define AR7240_MIB_TIMER_M BITM(16) -#define AR7240_MIB_AT_HALF_EN BIT(16) -#define AR7240_MIB_BUSY BIT(17) -#define AR7240_MIB_FUNC_S 24 -#define AR7240_MIB_FUNC_M BITM(3) -#define AR7240_MIB_FUNC_NO_OP 0x0 -#define AR7240_MIB_FUNC_FLUSH 0x1 -#define AR7240_MIB_FUNC_CAPTURE 0x3 - -#define AR7240_REG_MDIO_CTRL 0x98 -#define AR7240_MDIO_CTRL_DATA_M BITM(16) -#define AR7240_MDIO_CTRL_REG_ADDR_S 16 -#define AR7240_MDIO_CTRL_PHY_ADDR_S 21 -#define AR7240_MDIO_CTRL_CMD_WRITE 0 -#define AR7240_MDIO_CTRL_CMD_READ BIT(27) -#define AR7240_MDIO_CTRL_MASTER_EN BIT(30) -#define AR7240_MDIO_CTRL_BUSY BIT(31) - -#define AR7240_REG_PORT_BASE(_port) (0x100 + (_port) * 0x100) - -#define AR7240_REG_PORT_STATUS(_port) (AR7240_REG_PORT_BASE((_port)) + 0x00) -#define AR7240_PORT_STATUS_SPEED_S 0 -#define AR7240_PORT_STATUS_SPEED_M BITM(2) -#define AR7240_PORT_STATUS_SPEED_10 0 -#define AR7240_PORT_STATUS_SPEED_100 1 -#define AR7240_PORT_STATUS_SPEED_1000 2 -#define AR7240_PORT_STATUS_TXMAC BIT(2) -#define AR7240_PORT_STATUS_RXMAC BIT(3) -#define AR7240_PORT_STATUS_TXFLOW BIT(4) -#define AR7240_PORT_STATUS_RXFLOW BIT(5) -#define AR7240_PORT_STATUS_DUPLEX BIT(6) -#define AR7240_PORT_STATUS_LINK_UP BIT(8) -#define AR7240_PORT_STATUS_LINK_AUTO BIT(9) -#define AR7240_PORT_STATUS_LINK_PAUSE BIT(10) - -#define AR7240_REG_PORT_CTRL(_port) (AR7240_REG_PORT_BASE((_port)) + 0x04) -#define AR7240_PORT_CTRL_STATE_M BITM(3) -#define AR7240_PORT_CTRL_STATE_DISABLED 0 -#define AR7240_PORT_CTRL_STATE_BLOCK 1 -#define AR7240_PORT_CTRL_STATE_LISTEN 2 -#define AR7240_PORT_CTRL_STATE_LEARN 3 -#define AR7240_PORT_CTRL_STATE_FORWARD 4 -#define AR7240_PORT_CTRL_LEARN_LOCK BIT(7) -#define AR7240_PORT_CTRL_VLAN_MODE_S 8 -#define AR7240_PORT_CTRL_VLAN_MODE_KEEP 0 -#define AR7240_PORT_CTRL_VLAN_MODE_STRIP 1 -#define AR7240_PORT_CTRL_VLAN_MODE_ADD 2 -#define AR7240_PORT_CTRL_VLAN_MODE_DOUBLE_TAG 3 -#define AR7240_PORT_CTRL_IGMP_SNOOP BIT(10) -#define AR7240_PORT_CTRL_HEADER BIT(11) -#define AR7240_PORT_CTRL_MAC_LOOP BIT(12) -#define AR7240_PORT_CTRL_SINGLE_VLAN BIT(13) -#define AR7240_PORT_CTRL_LEARN BIT(14) -#define AR7240_PORT_CTRL_DOUBLE_TAG BIT(15) -#define AR7240_PORT_CTRL_MIRROR_TX BIT(16) -#define AR7240_PORT_CTRL_MIRROR_RX BIT(17) - -#define AR7240_REG_PORT_VLAN(_port) (AR7240_REG_PORT_BASE((_port)) + 0x08) - -#define AR7240_PORT_VLAN_DEFAULT_ID_S 0 -#define AR7240_PORT_VLAN_DEST_PORTS_S 16 -#define AR7240_PORT_VLAN_MODE_S 30 -#define AR7240_PORT_VLAN_MODE_PORT_ONLY 0 -#define AR7240_PORT_VLAN_MODE_PORT_FALLBACK 1 -#define AR7240_PORT_VLAN_MODE_VLAN_ONLY 2 -#define AR7240_PORT_VLAN_MODE_SECURE 3 - - -#define AR7240_REG_STATS_BASE(_port) (0x20000 + (_port) * 0x100) - -#define AR7240_STATS_RXBROAD 0x00 -#define AR7240_STATS_RXPAUSE 0x04 -#define AR7240_STATS_RXMULTI 0x08 -#define AR7240_STATS_RXFCSERR 0x0c -#define AR7240_STATS_RXALIGNERR 0x10 -#define AR7240_STATS_RXRUNT 0x14 -#define AR7240_STATS_RXFRAGMENT 0x18 -#define AR7240_STATS_RX64BYTE 0x1c -#define AR7240_STATS_RX128BYTE 0x20 -#define AR7240_STATS_RX256BYTE 0x24 -#define AR7240_STATS_RX512BYTE 0x28 -#define AR7240_STATS_RX1024BYTE 0x2c -#define AR7240_STATS_RX1518BYTE 0x30 -#define AR7240_STATS_RXMAXBYTE 0x34 -#define AR7240_STATS_RXTOOLONG 0x38 -#define AR7240_STATS_RXGOODBYTE 0x3c -#define AR7240_STATS_RXBADBYTE 0x44 -#define AR7240_STATS_RXOVERFLOW 0x4c -#define AR7240_STATS_FILTERED 0x50 -#define AR7240_STATS_TXBROAD 0x54 -#define AR7240_STATS_TXPAUSE 0x58 -#define AR7240_STATS_TXMULTI 0x5c -#define AR7240_STATS_TXUNDERRUN 0x60 -#define AR7240_STATS_TX64BYTE 0x64 -#define AR7240_STATS_TX128BYTE 0x68 -#define AR7240_STATS_TX256BYTE 0x6c -#define AR7240_STATS_TX512BYTE 0x70 -#define AR7240_STATS_TX1024BYTE 0x74 -#define AR7240_STATS_TX1518BYTE 0x78 -#define AR7240_STATS_TXMAXBYTE 0x7c -#define AR7240_STATS_TXOVERSIZE 0x80 -#define AR7240_STATS_TXBYTE 0x84 -#define AR7240_STATS_TXCOLLISION 0x8c -#define AR7240_STATS_TXABORTCOL 0x90 -#define AR7240_STATS_TXMULTICOL 0x94 -#define AR7240_STATS_TXSINGLECOL 0x98 -#define AR7240_STATS_TXEXCDEFER 0x9c -#define AR7240_STATS_TXDEFER 0xa0 -#define AR7240_STATS_TXLATECOL 0xa4 - -#define AR7240_PORT_CPU 0 -#define AR7240_NUM_PORTS 6 -#define AR7240_NUM_PHYS 5 - -#define AR7240_PHY_ID1 0x004d -#define AR7240_PHY_ID2 0xd041 - -#define AR934X_PHY_ID1 0x004d -#define AR934X_PHY_ID2 0xd042 - -#define AR7240_MAX_VLANS 16 - -#define AR934X_REG_OPER_MODE0 0x04 -#define AR934X_OPER_MODE0_MAC_GMII_EN BIT(6) -#define AR934X_OPER_MODE0_PHY_MII_EN BIT(10) - -#define AR934X_REG_OPER_MODE1 0x08 -#define AR934X_REG_OPER_MODE1_PHY4_MII_EN BIT(28) - -#define AR934X_REG_FLOOD_MASK 0x2c -#define AR934X_FLOOD_MASK_MC_DP(_p) BIT(16 + (_p)) -#define AR934X_FLOOD_MASK_BC_DP(_p) BIT(25 + (_p)) - -#define AR934X_REG_QM_CTRL 0x3c -#define AR934X_QM_CTRL_ARP_EN BIT(15) - -#define AR934X_REG_AT_CTRL 0x5c -#define AR934X_AT_CTRL_AGE_TIME BITS(0, 15) -#define AR934X_AT_CTRL_AGE_EN BIT(17) -#define AR934X_AT_CTRL_LEARN_CHANGE BIT(18) - -#define AR934X_MIB_ENABLE BIT(30) - -#define AR934X_REG_PORT_BASE(_port) (0x100 + (_port) * 0x100) - -#define AR934X_REG_PORT_VLAN1(_port) (AR934X_REG_PORT_BASE((_port)) + 0x08) -#define AR934X_PORT_VLAN1_DEFAULT_SVID_S 0 -#define AR934X_PORT_VLAN1_FORCE_DEFAULT_VID_EN BIT(12) -#define AR934X_PORT_VLAN1_PORT_TLS_MODE BIT(13) -#define AR934X_PORT_VLAN1_PORT_VLAN_PROP_EN BIT(14) -#define AR934X_PORT_VLAN1_PORT_CLONE_EN BIT(15) -#define AR934X_PORT_VLAN1_DEFAULT_CVID_S 16 -#define AR934X_PORT_VLAN1_FORCE_PORT_VLAN_EN BIT(28) -#define AR934X_PORT_VLAN1_ING_PORT_PRI_S 29 - -#define AR934X_REG_PORT_VLAN2(_port) (AR934X_REG_PORT_BASE((_port)) + 0x0c) -#define AR934X_PORT_VLAN2_PORT_VID_MEM_S 16 -#define AR934X_PORT_VLAN2_8021Q_MODE_S 30 -#define AR934X_PORT_VLAN2_8021Q_MODE_PORT_ONLY 0 -#define AR934X_PORT_VLAN2_8021Q_MODE_PORT_FALLBACK 1 -#define AR934X_PORT_VLAN2_8021Q_MODE_VLAN_ONLY 2 -#define AR934X_PORT_VLAN2_8021Q_MODE_SECURE 3 - -#define sw_to_ar7240(_dev) container_of(_dev, struct ar7240sw, swdev) - -struct ar7240sw_port_stat { - unsigned long rx_broadcast; - unsigned long rx_pause; - unsigned long rx_multicast; - unsigned long rx_fcs_error; - unsigned long rx_align_error; - unsigned long rx_runt; - unsigned long rx_fragments; - unsigned long rx_64byte; - unsigned long rx_128byte; - unsigned long rx_256byte; - unsigned long rx_512byte; - unsigned long rx_1024byte; - unsigned long rx_1518byte; - unsigned long rx_maxbyte; - unsigned long rx_toolong; - unsigned long rx_good_byte; - unsigned long rx_bad_byte; - unsigned long rx_overflow; - unsigned long filtered; - - unsigned long tx_broadcast; - unsigned long tx_pause; - unsigned long tx_multicast; - unsigned long tx_underrun; - unsigned long tx_64byte; - unsigned long tx_128byte; - unsigned long tx_256byte; - unsigned long tx_512byte; - unsigned long tx_1024byte; - unsigned long tx_1518byte; - unsigned long tx_maxbyte; - unsigned long tx_oversize; - unsigned long tx_byte; - unsigned long tx_collision; - unsigned long tx_abortcol; - unsigned long tx_multicol; - unsigned long tx_singlecol; - unsigned long tx_excdefer; - unsigned long tx_defer; - unsigned long tx_xlatecol; -}; - -struct ar7240sw { - struct mii_bus *mii_bus; - struct ag71xx_switch_platform_data *swdata; - struct switch_dev swdev; - int num_ports; - u8 ver; - bool vlan; - u16 vlan_id[AR7240_MAX_VLANS]; - u8 vlan_table[AR7240_MAX_VLANS]; - u8 vlan_tagged; - u16 pvid[AR7240_NUM_PORTS]; - char buf[80]; - - rwlock_t stats_lock; - struct ar7240sw_port_stat port_stats[AR7240_NUM_PORTS]; -}; - -struct ar7240sw_hw_stat { - char string[ETH_GSTRING_LEN]; - int sizeof_stat; - int reg; -}; - -static DEFINE_MUTEX(reg_mutex); - -static inline int sw_is_ar7240(struct ar7240sw *as) -{ - return as->ver == AR7240_MASK_CTRL_VERSION_AR7240; -} - -static inline int sw_is_ar934x(struct ar7240sw *as) -{ - return as->ver == AR7240_MASK_CTRL_VERSION_AR934X; -} - -static inline u32 ar7240sw_port_mask(struct ar7240sw *as, int port) -{ - return BIT(port); -} - -static inline u32 ar7240sw_port_mask_all(struct ar7240sw *as) -{ - return BIT(as->swdev.ports) - 1; -} - -static inline u32 ar7240sw_port_mask_but(struct ar7240sw *as, int port) -{ - return ar7240sw_port_mask_all(as) & ~BIT(port); -} - -static inline u16 mk_phy_addr(u32 reg) -{ - return 0x17 & ((reg >> 4) | 0x10); -} - -static inline u16 mk_phy_reg(u32 reg) -{ - return (reg << 1) & 0x1e; -} - -static inline u16 mk_high_addr(u32 reg) -{ - return (reg >> 7) & 0x1ff; -} - -static u32 __ar7240sw_reg_read(struct mii_bus *mii, u32 reg) -{ - unsigned long flags; - u16 phy_addr; - u16 phy_reg; - u32 hi, lo; - - reg = (reg & 0xfffffffc) >> 2; - phy_addr = mk_phy_addr(reg); - phy_reg = mk_phy_reg(reg); - - local_irq_save(flags); - ag71xx_mdio_mii_write(mii->priv, 0x1f, 0x10, mk_high_addr(reg)); - lo = (u32) ag71xx_mdio_mii_read(mii->priv, phy_addr, phy_reg); - hi = (u32) ag71xx_mdio_mii_read(mii->priv, phy_addr, phy_reg + 1); - local_irq_restore(flags); - - return (hi << 16) | lo; -} - -static void __ar7240sw_reg_write(struct mii_bus *mii, u32 reg, u32 val) -{ - unsigned long flags; - u16 phy_addr; - u16 phy_reg; - - reg = (reg & 0xfffffffc) >> 2; - phy_addr = mk_phy_addr(reg); - phy_reg = mk_phy_reg(reg); - - local_irq_save(flags); - ag71xx_mdio_mii_write(mii->priv, 0x1f, 0x10, mk_high_addr(reg)); - ag71xx_mdio_mii_write(mii->priv, phy_addr, phy_reg + 1, (val >> 16)); - ag71xx_mdio_mii_write(mii->priv, phy_addr, phy_reg, (val & 0xffff)); - local_irq_restore(flags); -} - -static u32 ar7240sw_reg_read(struct mii_bus *mii, u32 reg_addr) -{ - u32 ret; - - mutex_lock(®_mutex); - ret = __ar7240sw_reg_read(mii, reg_addr); - mutex_unlock(®_mutex); - - return ret; -} - -static void ar7240sw_reg_write(struct mii_bus *mii, u32 reg_addr, u32 reg_val) -{ - mutex_lock(®_mutex); - __ar7240sw_reg_write(mii, reg_addr, reg_val); - mutex_unlock(®_mutex); -} - -static u32 ar7240sw_reg_rmw(struct mii_bus *mii, u32 reg, u32 mask, u32 val) -{ - u32 t; - - mutex_lock(®_mutex); - t = __ar7240sw_reg_read(mii, reg); - t &= ~mask; - t |= val; - __ar7240sw_reg_write(mii, reg, t); - mutex_unlock(®_mutex); - - return t; -} - -static void ar7240sw_reg_set(struct mii_bus *mii, u32 reg, u32 val) -{ - u32 t; - - mutex_lock(®_mutex); - t = __ar7240sw_reg_read(mii, reg); - t |= val; - __ar7240sw_reg_write(mii, reg, t); - mutex_unlock(®_mutex); -} - -static int __ar7240sw_reg_wait(struct mii_bus *mii, u32 reg, u32 mask, u32 val, - unsigned timeout) -{ - int i; - - for (i = 0; i < timeout; i++) { - u32 t; - - t = __ar7240sw_reg_read(mii, reg); - if ((t & mask) == val) - return 0; - - usleep_range(1000, 2000); - } - - return -ETIMEDOUT; -} - -static int ar7240sw_reg_wait(struct mii_bus *mii, u32 reg, u32 mask, u32 val, - unsigned timeout) -{ - int ret; - - mutex_lock(®_mutex); - ret = __ar7240sw_reg_wait(mii, reg, mask, val, timeout); - mutex_unlock(®_mutex); - return ret; -} - -u16 ar7240sw_phy_read(struct mii_bus *mii, unsigned phy_addr, - unsigned reg_addr) -{ - u32 t, val = 0xffff; - int err; - - if (phy_addr >= AR7240_NUM_PHYS) - return 0xffff; - - mutex_lock(®_mutex); - t = (reg_addr << AR7240_MDIO_CTRL_REG_ADDR_S) | - (phy_addr << AR7240_MDIO_CTRL_PHY_ADDR_S) | - AR7240_MDIO_CTRL_MASTER_EN | - AR7240_MDIO_CTRL_BUSY | - AR7240_MDIO_CTRL_CMD_READ; - - __ar7240sw_reg_write(mii, AR7240_REG_MDIO_CTRL, t); - err = __ar7240sw_reg_wait(mii, AR7240_REG_MDIO_CTRL, - AR7240_MDIO_CTRL_BUSY, 0, 5); - if (!err) - val = __ar7240sw_reg_read(mii, AR7240_REG_MDIO_CTRL); - mutex_unlock(®_mutex); - - return val & AR7240_MDIO_CTRL_DATA_M; -} - -int ar7240sw_phy_write(struct mii_bus *mii, unsigned phy_addr, - unsigned reg_addr, u16 reg_val) -{ - u32 t; - int ret; - - if (phy_addr >= AR7240_NUM_PHYS) - return -EINVAL; - - mutex_lock(®_mutex); - t = (phy_addr << AR7240_MDIO_CTRL_PHY_ADDR_S) | - (reg_addr << AR7240_MDIO_CTRL_REG_ADDR_S) | - AR7240_MDIO_CTRL_MASTER_EN | - AR7240_MDIO_CTRL_BUSY | - AR7240_MDIO_CTRL_CMD_WRITE | - reg_val; - - __ar7240sw_reg_write(mii, AR7240_REG_MDIO_CTRL, t); - ret = __ar7240sw_reg_wait(mii, AR7240_REG_MDIO_CTRL, - AR7240_MDIO_CTRL_BUSY, 0, 5); - mutex_unlock(®_mutex); - - return ret; -} - -static int ar7240sw_capture_stats(struct ar7240sw *as) -{ - struct mii_bus *mii = as->mii_bus; - int port; - int ret; - - write_lock(&as->stats_lock); - - /* Capture the hardware statistics for all ports */ - ar7240sw_reg_rmw(mii, AR7240_REG_MIB_FUNCTION0, - (AR7240_MIB_FUNC_M << AR7240_MIB_FUNC_S), - (AR7240_MIB_FUNC_CAPTURE << AR7240_MIB_FUNC_S)); - - /* Wait for the capturing to complete. */ - ret = ar7240sw_reg_wait(mii, AR7240_REG_MIB_FUNCTION0, - AR7240_MIB_BUSY, 0, 10); - - if (ret) - goto unlock; - - for (port = 0; port < AR7240_NUM_PORTS; port++) { - unsigned int base; - struct ar7240sw_port_stat *stats; - - base = AR7240_REG_STATS_BASE(port); - stats = &as->port_stats[port]; - -#define READ_STAT(_r) ar7240sw_reg_read(mii, base + AR7240_STATS_ ## _r) - - stats->rx_good_byte += READ_STAT(RXGOODBYTE); - stats->tx_byte += READ_STAT(TXBYTE); - -#undef READ_STAT - } - - ret = 0; - -unlock: - write_unlock(&as->stats_lock); - return ret; -} - -static void ar7240sw_disable_port(struct ar7240sw *as, unsigned port) -{ - ar7240sw_reg_write(as->mii_bus, AR7240_REG_PORT_CTRL(port), - AR7240_PORT_CTRL_STATE_DISABLED); -} - -static void ar7240sw_setup(struct ar7240sw *as) -{ - struct mii_bus *mii = as->mii_bus; - - /* Enable CPU port, and disable mirror port */ - ar7240sw_reg_write(mii, AR7240_REG_CPU_PORT, - AR7240_CPU_PORT_EN | - (15 << AR7240_MIRROR_PORT_S)); - - /* Setup TAG priority mapping */ - ar7240sw_reg_write(mii, AR7240_REG_TAG_PRIORITY, 0xfa50); - - if (sw_is_ar934x(as)) { - /* Enable aging, MAC replacing */ - ar7240sw_reg_write(mii, AR934X_REG_AT_CTRL, - 0x2b /* 5 min age time */ | - AR934X_AT_CTRL_AGE_EN | - AR934X_AT_CTRL_LEARN_CHANGE); - /* Enable ARP frame acknowledge */ - ar7240sw_reg_set(mii, AR934X_REG_QM_CTRL, - AR934X_QM_CTRL_ARP_EN); - /* Enable Broadcast/Multicast frames transmitted to the CPU */ - ar7240sw_reg_set(mii, AR934X_REG_FLOOD_MASK, - AR934X_FLOOD_MASK_BC_DP(0) | - AR934X_FLOOD_MASK_MC_DP(0)); - - /* setup MTU */ - ar7240sw_reg_rmw(mii, AR7240_REG_GLOBAL_CTRL, - AR9340_GLOBAL_CTRL_MTU_M, - AR9340_GLOBAL_CTRL_MTU_M); - - /* Enable MIB counters */ - ar7240sw_reg_set(mii, AR7240_REG_MIB_FUNCTION0, - AR934X_MIB_ENABLE); - - } else { - /* Enable ARP frame acknowledge, aging, MAC replacing */ - ar7240sw_reg_write(mii, AR7240_REG_AT_CTRL, - AR7240_AT_CTRL_RESERVED | - 0x2b /* 5 min age time */ | - AR7240_AT_CTRL_AGE_EN | - AR7240_AT_CTRL_ARP_EN | - AR7240_AT_CTRL_LEARN_CHANGE); - /* Enable Broadcast frames transmitted to the CPU */ - ar7240sw_reg_set(mii, AR7240_REG_FLOOD_MASK, - AR7240_FLOOD_MASK_BROAD_TO_CPU); - - /* setup MTU */ - ar7240sw_reg_rmw(mii, AR7240_REG_GLOBAL_CTRL, - AR7240_GLOBAL_CTRL_MTU_M, - AR7240_GLOBAL_CTRL_MTU_M); - } - - /* setup Service TAG */ - ar7240sw_reg_rmw(mii, AR7240_REG_SERVICE_TAG, AR7240_SERVICE_TAG_M, 0); -} - -/* inspired by phy_poll_reset in drivers/net/phy/phy_device.c */ -static int -ar7240sw_phy_poll_reset(struct mii_bus *bus) -{ - const unsigned int sleep_msecs = 20; - int ret, elapsed, i; - - for (elapsed = sleep_msecs; elapsed <= 600; - elapsed += sleep_msecs) { - msleep(sleep_msecs); - for (i = 0; i < AR7240_NUM_PHYS; i++) { - ret = ar7240sw_phy_read(bus, i, MII_BMCR); - if (ret < 0) - return ret; - if (ret & BMCR_RESET) - break; - if (i == AR7240_NUM_PHYS - 1) { - usleep_range(1000, 2000); - return 0; - } - } - } - return -ETIMEDOUT; -} - -static int ar7240sw_reset(struct ar7240sw *as) -{ - struct mii_bus *mii = as->mii_bus; - int ret; - int i; - - /* Set all ports to disabled state. */ - for (i = 0; i < AR7240_NUM_PORTS; i++) - ar7240sw_disable_port(as, i); - - /* Wait for transmit queues to drain. */ - usleep_range(2000, 3000); - - /* Reset the switch. */ - ar7240sw_reg_write(mii, AR7240_REG_MASK_CTRL, - AR7240_MASK_CTRL_SOFT_RESET); - - ret = ar7240sw_reg_wait(mii, AR7240_REG_MASK_CTRL, - AR7240_MASK_CTRL_SOFT_RESET, 0, 1000); - - /* setup PHYs */ - for (i = 0; i < AR7240_NUM_PHYS; i++) { - ar7240sw_phy_write(mii, i, MII_ADVERTISE, - ADVERTISE_ALL | ADVERTISE_PAUSE_CAP | - ADVERTISE_PAUSE_ASYM); - ar7240sw_phy_write(mii, i, MII_BMCR, - BMCR_RESET | BMCR_ANENABLE); - } - ret = ar7240sw_phy_poll_reset(mii); - if (ret) - return ret; - - ar7240sw_setup(as); - return ret; -} - -static void ar7240sw_setup_port(struct ar7240sw *as, unsigned port, u8 portmask) -{ - struct mii_bus *mii = as->mii_bus; - u32 ctrl; - u32 vid, mode; - - ctrl = AR7240_PORT_CTRL_STATE_FORWARD | AR7240_PORT_CTRL_LEARN | - AR7240_PORT_CTRL_SINGLE_VLAN; - - if (port == AR7240_PORT_CPU) { - ar7240sw_reg_write(mii, AR7240_REG_PORT_STATUS(port), - AR7240_PORT_STATUS_SPEED_1000 | - AR7240_PORT_STATUS_TXFLOW | - AR7240_PORT_STATUS_RXFLOW | - AR7240_PORT_STATUS_TXMAC | - AR7240_PORT_STATUS_RXMAC | - AR7240_PORT_STATUS_DUPLEX); - } else { - ar7240sw_reg_write(mii, AR7240_REG_PORT_STATUS(port), - AR7240_PORT_STATUS_LINK_AUTO); - } - - /* Set the default VID for this port */ - if (as->vlan) { - vid = as->vlan_id[as->pvid[port]]; - mode = AR7240_PORT_VLAN_MODE_SECURE; - } else { - vid = port; - mode = AR7240_PORT_VLAN_MODE_PORT_ONLY; - } - - if (as->vlan) { - if (as->vlan_tagged & BIT(port)) - ctrl |= AR7240_PORT_CTRL_VLAN_MODE_ADD << - AR7240_PORT_CTRL_VLAN_MODE_S; - else - ctrl |= AR7240_PORT_CTRL_VLAN_MODE_STRIP << - AR7240_PORT_CTRL_VLAN_MODE_S; - } else { - ctrl |= AR7240_PORT_CTRL_VLAN_MODE_KEEP << - AR7240_PORT_CTRL_VLAN_MODE_S; - } - - if (!portmask) { - if (port == AR7240_PORT_CPU) - portmask = ar7240sw_port_mask_but(as, AR7240_PORT_CPU); - else - portmask = ar7240sw_port_mask(as, AR7240_PORT_CPU); - } - - /* preserve mirror rx&tx flags */ - ctrl |= ar7240sw_reg_read(mii, AR7240_REG_PORT_CTRL(port)) & - (AR7240_PORT_CTRL_MIRROR_RX | AR7240_PORT_CTRL_MIRROR_TX); - - /* allow the port to talk to all other ports, but exclude its - * own ID to prevent frames from being reflected back to the - * port that they came from */ - portmask &= ar7240sw_port_mask_but(as, port); - - ar7240sw_reg_write(mii, AR7240_REG_PORT_CTRL(port), ctrl); - if (sw_is_ar934x(as)) { - u32 vlan1, vlan2; - - vlan1 = (vid << AR934X_PORT_VLAN1_DEFAULT_CVID_S); - vlan2 = (portmask << AR934X_PORT_VLAN2_PORT_VID_MEM_S) | - (mode << AR934X_PORT_VLAN2_8021Q_MODE_S); - ar7240sw_reg_write(mii, AR934X_REG_PORT_VLAN1(port), vlan1); - ar7240sw_reg_write(mii, AR934X_REG_PORT_VLAN2(port), vlan2); - } else { - u32 vlan; - - vlan = vid | (mode << AR7240_PORT_VLAN_MODE_S) | - (portmask << AR7240_PORT_VLAN_DEST_PORTS_S); - - ar7240sw_reg_write(mii, AR7240_REG_PORT_VLAN(port), vlan); - } -} - -static int ar7240_set_addr(struct ar7240sw *as, u8 *addr) -{ - struct mii_bus *mii = as->mii_bus; - u32 t; - - t = (addr[4] << 8) | addr[5]; - ar7240sw_reg_write(mii, AR7240_REG_MAC_ADDR0, t); - - t = (addr[0] << 24) | (addr[1] << 16) | (addr[2] << 8) | addr[3]; - ar7240sw_reg_write(mii, AR7240_REG_MAC_ADDR1, t); - - return 0; -} - -static int -ar7240_set_vid(struct switch_dev *dev, const struct switch_attr *attr, - struct switch_val *val) -{ - struct ar7240sw *as = sw_to_ar7240(dev); - as->vlan_id[val->port_vlan] = val->value.i; - return 0; -} - -static int -ar7240_get_vid(struct switch_dev *dev, const struct switch_attr *attr, - struct switch_val *val) -{ - struct ar7240sw *as = sw_to_ar7240(dev); - val->value.i = as->vlan_id[val->port_vlan]; - return 0; -} - -static int -ar7240_set_pvid(struct switch_dev *dev, int port, int vlan) -{ - struct ar7240sw *as = sw_to_ar7240(dev); - - /* make sure no invalid PVIDs get set */ - - if (vlan >= dev->vlans) - return -EINVAL; - - as->pvid[port] = vlan; - return 0; -} - -static int -ar7240_get_pvid(struct switch_dev *dev, int port, int *vlan) -{ - struct ar7240sw *as = sw_to_ar7240(dev); - *vlan = as->pvid[port]; - return 0; -} - -static int -ar7240_get_ports(struct switch_dev *dev, struct switch_val *val) -{ - struct ar7240sw *as = sw_to_ar7240(dev); - u8 ports = as->vlan_table[val->port_vlan]; - int i; - - val->len = 0; - for (i = 0; i < as->swdev.ports; i++) { - struct switch_port *p; - - if (!(ports & (1 << i))) - continue; - - p = &val->value.ports[val->len++]; - p->id = i; - if (as->vlan_tagged & (1 << i)) - p->flags = (1 << SWITCH_PORT_FLAG_TAGGED); - else - p->flags = 0; - } - return 0; -} - -static int -ar7240_set_ports(struct switch_dev *dev, struct switch_val *val) -{ - struct ar7240sw *as = sw_to_ar7240(dev); - u8 *vt = &as->vlan_table[val->port_vlan]; - int i, j; - - *vt = 0; - for (i = 0; i < val->len; i++) { - struct switch_port *p = &val->value.ports[i]; - - if (p->flags & (1 << SWITCH_PORT_FLAG_TAGGED)) - as->vlan_tagged |= (1 << p->id); - else { - as->vlan_tagged &= ~(1 << p->id); - as->pvid[p->id] = val->port_vlan; - - /* make sure that an untagged port does not - * appear in other vlans */ - for (j = 0; j < AR7240_MAX_VLANS; j++) { - if (j == val->port_vlan) - continue; - as->vlan_table[j] &= ~(1 << p->id); - } - } - - *vt |= 1 << p->id; - } - return 0; -} - -static int -ar7240_set_vlan(struct switch_dev *dev, const struct switch_attr *attr, - struct switch_val *val) -{ - struct ar7240sw *as = sw_to_ar7240(dev); - as->vlan = !!val->value.i; - return 0; -} - -static int -ar7240_get_vlan(struct switch_dev *dev, const struct switch_attr *attr, - struct switch_val *val) -{ - struct ar7240sw *as = sw_to_ar7240(dev); - val->value.i = as->vlan; - return 0; -} - -static void -ar7240_vtu_op(struct ar7240sw *as, u32 op, u32 val) -{ - struct mii_bus *mii = as->mii_bus; - - if (ar7240sw_reg_wait(mii, AR7240_REG_VTU, AR7240_VTU_ACTIVE, 0, 5)) - return; - - if ((op & AR7240_VTU_OP) == AR7240_VTU_OP_LOAD) { - val &= AR7240_VTUDATA_MEMBER; - val |= AR7240_VTUDATA_VALID; - ar7240sw_reg_write(mii, AR7240_REG_VTU_DATA, val); - } - op |= AR7240_VTU_ACTIVE; - ar7240sw_reg_write(mii, AR7240_REG_VTU, op); -} - -static int -ar7240_hw_apply(struct switch_dev *dev) -{ - struct ar7240sw *as = sw_to_ar7240(dev); - u8 portmask[AR7240_NUM_PORTS]; - int i, j; - - /* flush all vlan translation unit entries */ - ar7240_vtu_op(as, AR7240_VTU_OP_FLUSH, 0); - - memset(portmask, 0, sizeof(portmask)); - if (as->vlan) { - /* calculate the port destination masks and load vlans - * into the vlan translation unit */ - for (j = 0; j < AR7240_MAX_VLANS; j++) { - u8 vp = as->vlan_table[j]; - - if (!vp) - continue; - - for (i = 0; i < as->swdev.ports; i++) { - u8 mask = (1 << i); - if (vp & mask) - portmask[i] |= vp & ~mask; - } - - ar7240_vtu_op(as, - AR7240_VTU_OP_LOAD | - (as->vlan_id[j] << AR7240_VTU_VID_S), - as->vlan_table[j]); - } - } else { - /* vlan disabled: - * isolate all ports, but connect them to the cpu port */ - for (i = 0; i < as->swdev.ports; i++) { - if (i == AR7240_PORT_CPU) - continue; - - portmask[i] = 1 << AR7240_PORT_CPU; - portmask[AR7240_PORT_CPU] |= (1 << i); - } - } - - /* update the port destination mask registers and tag settings */ - for (i = 0; i < as->swdev.ports; i++) - ar7240sw_setup_port(as, i, portmask[i]); - - return 0; -} - -static int -ar7240_reset_switch(struct switch_dev *dev) -{ - struct ar7240sw *as = sw_to_ar7240(dev); - ar7240sw_reset(as); - return 0; -} - -static int -ar7240_get_port_link(struct switch_dev *dev, int port, - struct switch_port_link *link) -{ - struct ar7240sw *as = sw_to_ar7240(dev); - struct mii_bus *mii = as->mii_bus; - u32 status; - - if (port >= AR7240_NUM_PORTS) - return -EINVAL; - - status = ar7240sw_reg_read(mii, AR7240_REG_PORT_STATUS(port)); - link->aneg = !!(status & AR7240_PORT_STATUS_LINK_AUTO); - if (link->aneg) { - link->link = !!(status & AR7240_PORT_STATUS_LINK_UP); - if (!link->link) - return 0; - } else { - link->link = true; - } - - link->duplex = !!(status & AR7240_PORT_STATUS_DUPLEX); - link->tx_flow = !!(status & AR7240_PORT_STATUS_TXFLOW); - link->rx_flow = !!(status & AR7240_PORT_STATUS_RXFLOW); - switch (status & AR7240_PORT_STATUS_SPEED_M) { - case AR7240_PORT_STATUS_SPEED_10: - link->speed = SWITCH_PORT_SPEED_10; - break; - case AR7240_PORT_STATUS_SPEED_100: - link->speed = SWITCH_PORT_SPEED_100; - break; - case AR7240_PORT_STATUS_SPEED_1000: - link->speed = SWITCH_PORT_SPEED_1000; - break; - } - - return 0; -} - -static int -ar7240_get_port_stats(struct switch_dev *dev, int port, - struct switch_port_stats *stats) -{ - struct ar7240sw *as = sw_to_ar7240(dev); - - if (port >= AR7240_NUM_PORTS) - return -EINVAL; - - ar7240sw_capture_stats(as); - - read_lock(&as->stats_lock); - stats->rx_bytes = as->port_stats[port].rx_good_byte; - stats->tx_bytes = as->port_stats[port].tx_byte; - read_unlock(&as->stats_lock); - - return 0; -} - -static int -ar7240_set_mirror_monitor_port(struct switch_dev *dev, - const struct switch_attr *attr, - struct switch_val *val) -{ - struct ar7240sw *as = sw_to_ar7240(dev); - struct mii_bus *mii = as->mii_bus; - - int port = val->value.i; - - if (port > 15) - return -EINVAL; - - ar7240sw_reg_rmw(mii, AR7240_REG_CPU_PORT, - AR7240_MIRROR_PORT_M << AR7240_MIRROR_PORT_S, - port << AR7240_MIRROR_PORT_S); - - return 0; -} - -static int -ar7240_get_mirror_monitor_port(struct switch_dev *dev, - const struct switch_attr *attr, - struct switch_val *val) -{ - struct ar7240sw *as = sw_to_ar7240(dev); - struct mii_bus *mii = as->mii_bus; - - u32 ret; - - ret = ar7240sw_reg_read(mii, AR7240_REG_CPU_PORT); - val->value.i = (ret >> AR7240_MIRROR_PORT_S) & AR7240_MIRROR_PORT_M; - - return 0; -} - -static int -ar7240_set_mirror_rx(struct switch_dev *dev, const struct switch_attr *attr, - struct switch_val *val) -{ - struct ar7240sw *as = sw_to_ar7240(dev); - struct mii_bus *mii = as->mii_bus; - - int port = val->port_vlan; - - if (port >= dev->ports) - return -EINVAL; - - if (val && val->value.i == 1) - ar7240sw_reg_set(mii, AR7240_REG_PORT_CTRL(port), - AR7240_PORT_CTRL_MIRROR_RX); - else - ar7240sw_reg_rmw(mii, AR7240_REG_PORT_CTRL(port), - AR7240_PORT_CTRL_MIRROR_RX, 0); - - return 0; -} - -static int -ar7240_get_mirror_rx(struct switch_dev *dev, const struct switch_attr *attr, - struct switch_val *val) -{ - struct ar7240sw *as = sw_to_ar7240(dev); - struct mii_bus *mii = as->mii_bus; - - u32 ctrl; - - int port = val->port_vlan; - - if (port >= dev->ports) - return -EINVAL; - - ctrl = ar7240sw_reg_read(mii, AR7240_REG_PORT_CTRL(port)); - - if ((ctrl & AR7240_PORT_CTRL_MIRROR_RX) == AR7240_PORT_CTRL_MIRROR_RX) - val->value.i = 1; - else - val->value.i = 0; - - return 0; -} - -static int -ar7240_set_mirror_tx(struct switch_dev *dev, const struct switch_attr *attr, - struct switch_val *val) -{ - struct ar7240sw *as = sw_to_ar7240(dev); - struct mii_bus *mii = as->mii_bus; - - int port = val->port_vlan; - - if (port >= dev->ports) - return -EINVAL; - - if (val && val->value.i == 1) - ar7240sw_reg_set(mii, AR7240_REG_PORT_CTRL(port), - AR7240_PORT_CTRL_MIRROR_TX); - else - ar7240sw_reg_rmw(mii, AR7240_REG_PORT_CTRL(port), - AR7240_PORT_CTRL_MIRROR_TX, 0); - - return 0; -} - -static int -ar7240_get_mirror_tx(struct switch_dev *dev, const struct switch_attr *attr, - struct switch_val *val) -{ - struct ar7240sw *as = sw_to_ar7240(dev); - struct mii_bus *mii = as->mii_bus; - - u32 ctrl; - - int port = val->port_vlan; - - if (port >= dev->ports) - return -EINVAL; - - ctrl = ar7240sw_reg_read(mii, AR7240_REG_PORT_CTRL(port)); - - if ((ctrl & AR7240_PORT_CTRL_MIRROR_TX) == AR7240_PORT_CTRL_MIRROR_TX) - val->value.i = 1; - else - val->value.i = 0; - - return 0; -} - -static struct switch_attr ar7240_globals[] = { - { - .type = SWITCH_TYPE_INT, - .name = "enable_vlan", - .description = "Enable VLAN mode", - .set = ar7240_set_vlan, - .get = ar7240_get_vlan, - .max = 1 - }, - { - .type = SWITCH_TYPE_INT, - .name = "mirror_monitor_port", - .description = "Mirror monitor port", - .set = ar7240_set_mirror_monitor_port, - .get = ar7240_get_mirror_monitor_port, - .max = 15 - }, -}; - -static struct switch_attr ar7240_port[] = { - { - .type = SWITCH_TYPE_INT, - .name = "enable_mirror_rx", - .description = "Enable mirroring of RX packets", - .set = ar7240_set_mirror_rx, - .get = ar7240_get_mirror_rx, - .max = 1 - }, - { - .type = SWITCH_TYPE_INT, - .name = "enable_mirror_tx", - .description = "Enable mirroring of TX packets", - .set = ar7240_set_mirror_tx, - .get = ar7240_get_mirror_tx, - .max = 1 - }, -}; - -static struct switch_attr ar7240_vlan[] = { - { - .type = SWITCH_TYPE_INT, - .name = "vid", - .description = "VLAN ID", - .set = ar7240_set_vid, - .get = ar7240_get_vid, - .max = 4094, - }, -}; - -static const struct switch_dev_ops ar7240_ops = { - .attr_global = { - .attr = ar7240_globals, - .n_attr = ARRAY_SIZE(ar7240_globals), - }, - .attr_port = { - .attr = ar7240_port, - .n_attr = ARRAY_SIZE(ar7240_port), - }, - .attr_vlan = { - .attr = ar7240_vlan, - .n_attr = ARRAY_SIZE(ar7240_vlan), - }, - .get_port_pvid = ar7240_get_pvid, - .set_port_pvid = ar7240_set_pvid, - .get_vlan_ports = ar7240_get_ports, - .set_vlan_ports = ar7240_set_ports, - .apply_config = ar7240_hw_apply, - .reset_switch = ar7240_reset_switch, - .get_port_link = ar7240_get_port_link, - .get_port_stats = ar7240_get_port_stats, -}; - -static struct ar7240sw *ar7240_probe(struct ag71xx *ag) -{ - struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag); - struct mii_bus *mii = ag->mii_bus; - struct ar7240sw *as; - struct switch_dev *swdev; - u32 ctrl; - u16 phy_id1; - u16 phy_id2; - int i; - - phy_id1 = ar7240sw_phy_read(mii, 0, MII_PHYSID1); - phy_id2 = ar7240sw_phy_read(mii, 0, MII_PHYSID2); - if ((phy_id1 != AR7240_PHY_ID1 || phy_id2 != AR7240_PHY_ID2) && - (phy_id1 != AR934X_PHY_ID1 || phy_id2 != AR934X_PHY_ID2)) { - pr_err("%s: unknown phy id '%04x:%04x'\n", - dev_name(&mii->dev), phy_id1, phy_id2); - return NULL; - } - - as = kzalloc(sizeof(*as), GFP_KERNEL); - if (!as) - return NULL; - - as->mii_bus = mii; - as->swdata = pdata->switch_data; - - swdev = &as->swdev; - - ctrl = ar7240sw_reg_read(mii, AR7240_REG_MASK_CTRL); - as->ver = (ctrl >> AR7240_MASK_CTRL_VERSION_S) & - AR7240_MASK_CTRL_VERSION_M; - - if (sw_is_ar7240(as)) { - swdev->name = "AR7240/AR9330 built-in switch"; - swdev->ports = AR7240_NUM_PORTS - 1; - } else if (sw_is_ar934x(as)) { - swdev->name = "AR934X built-in switch"; - - if (pdata->phy_if_mode == PHY_INTERFACE_MODE_GMII) { - ar7240sw_reg_set(mii, AR934X_REG_OPER_MODE0, - AR934X_OPER_MODE0_MAC_GMII_EN); - } else if (pdata->phy_if_mode == PHY_INTERFACE_MODE_MII) { - ar7240sw_reg_set(mii, AR934X_REG_OPER_MODE0, - AR934X_OPER_MODE0_PHY_MII_EN); - } else { - pr_err("%s: invalid PHY interface mode\n", - dev_name(&mii->dev)); - goto err_free; - } - - if (as->swdata->phy4_mii_en) { - ar7240sw_reg_set(mii, AR934X_REG_OPER_MODE1, - AR934X_REG_OPER_MODE1_PHY4_MII_EN); - swdev->ports = AR7240_NUM_PORTS - 1; - } else { - swdev->ports = AR7240_NUM_PORTS; - } - } else { - pr_err("%s: unsupported chip, ctrl=%08x\n", - dev_name(&mii->dev), ctrl); - goto err_free; - } - - swdev->cpu_port = AR7240_PORT_CPU; - swdev->vlans = AR7240_MAX_VLANS; - swdev->ops = &ar7240_ops; - - if (register_switch(&as->swdev, ag->dev) < 0) - goto err_free; - - pr_info("%s: Found an %s\n", dev_name(&mii->dev), swdev->name); - - /* initialize defaults */ - for (i = 0; i < AR7240_MAX_VLANS; i++) - as->vlan_id[i] = i; - - as->vlan_table[0] = ar7240sw_port_mask_all(as); - - return as; - -err_free: - kfree(as); - return NULL; -} - -static void link_function(struct work_struct *work) { - struct ag71xx *ag = container_of(work, struct ag71xx, link_work.work); - struct ar7240sw *as = ag->phy_priv; - unsigned long flags; - u8 mask; - int i; - int status = 0; - - mask = ~as->swdata->phy_poll_mask; - for (i = 0; i < AR7240_NUM_PHYS; i++) { - int link; - - if (!(mask & BIT(i))) - continue; - - link = ar7240sw_phy_read(ag->mii_bus, i, MII_BMSR); - if (link & BMSR_LSTATUS) { - status = 1; - break; - } - } - - spin_lock_irqsave(&ag->lock, flags); - if (status != ag->link) { - ag->link = status; - ag71xx_link_adjust(ag); - } - spin_unlock_irqrestore(&ag->lock, flags); - - schedule_delayed_work(&ag->link_work, HZ / 2); -} - -void ag71xx_ar7240_start(struct ag71xx *ag) -{ - struct ar7240sw *as = ag->phy_priv; - - ar7240sw_reset(as); - - ag->speed = SPEED_1000; - ag->duplex = 1; - - ar7240_set_addr(as, ag->dev->dev_addr); - ar7240_hw_apply(&as->swdev); - - schedule_delayed_work(&ag->link_work, HZ / 10); -} - -void ag71xx_ar7240_stop(struct ag71xx *ag) -{ - cancel_delayed_work_sync(&ag->link_work); -} - -int ag71xx_ar7240_init(struct ag71xx *ag) -{ - struct ar7240sw *as; - - as = ar7240_probe(ag); - if (!as) - return -ENODEV; - - ag->phy_priv = as; - ar7240sw_reset(as); - - rwlock_init(&as->stats_lock); - INIT_DELAYED_WORK(&ag->link_work, link_function); - - return 0; -} - -void ag71xx_ar7240_cleanup(struct ag71xx *ag) -{ - struct ar7240sw *as = ag->phy_priv; - - if (!as) - return; - - unregister_switch(&as->swdev); - kfree(as); - ag->phy_priv = NULL; -} diff --git a/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_ar8216.c b/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_ar8216.c deleted file mode 100644 index 7ec43b7221..0000000000 --- a/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_ar8216.c +++ /dev/null @@ -1,44 +0,0 @@ -/* - * Atheros AR71xx built-in ethernet mac driver - * Special support for the Atheros ar8216 switch chip - * - * Copyright (C) 2009-2010 Gabor Juhos <juhosg@openwrt.org> - * - * Based on Atheros' AG7100 driver - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation. - */ - -#include "ag71xx.h" - -#define AR8216_PACKET_TYPE_MASK 0xf -#define AR8216_PACKET_TYPE_NORMAL 0 - -#define AR8216_HEADER_LEN 2 - -void ag71xx_add_ar8216_header(struct ag71xx *ag, struct sk_buff *skb) -{ - skb_push(skb, AR8216_HEADER_LEN); - skb->data[0] = 0x10; - skb->data[1] = 0x80; -} - -int ag71xx_remove_ar8216_header(struct ag71xx *ag, struct sk_buff *skb, - int pktlen) -{ - u8 type; - - type = skb->data[1] & AR8216_PACKET_TYPE_MASK; - switch (type) { - case AR8216_PACKET_TYPE_NORMAL: - break; - - default: - return -EINVAL; - } - - skb_pull(skb, AR8216_HEADER_LEN); - return 0; -} diff --git a/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_debugfs.c b/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_debugfs.c deleted file mode 100644 index 20cf1c15c8..0000000000 --- a/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_debugfs.c +++ /dev/null @@ -1,285 +0,0 @@ -/* - * Atheros AR71xx built-in ethernet mac driver - * - * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org> - * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org> - * - * Based on Atheros' AG7100 driver - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation. - */ - -#include <linux/debugfs.h> - -#include "ag71xx.h" - -static struct dentry *ag71xx_debugfs_root; - -static int ag71xx_debugfs_generic_open(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - return 0; -} - -void ag71xx_debugfs_update_int_stats(struct ag71xx *ag, u32 status) -{ - if (status) - ag->debug.int_stats.total++; - if (status & AG71XX_INT_TX_PS) - ag->debug.int_stats.tx_ps++; - if (status & AG71XX_INT_TX_UR) - ag->debug.int_stats.tx_ur++; - if (status & AG71XX_INT_TX_BE) - ag->debug.int_stats.tx_be++; - if (status & AG71XX_INT_RX_PR) - ag->debug.int_stats.rx_pr++; - if (status & AG71XX_INT_RX_OF) - ag->debug.int_stats.rx_of++; - if (status & AG71XX_INT_RX_BE) - ag->debug.int_stats.rx_be++; -} - -static ssize_t read_file_int_stats(struct file *file, char __user *user_buf, - size_t count, loff_t *ppos) -{ -#define PR_INT_STAT(_label, _field) \ - len += snprintf(buf + len, sizeof(buf) - len, \ - "%20s: %10lu\n", _label, ag->debug.int_stats._field); - - struct ag71xx *ag = file->private_data; - char buf[256]; - unsigned int len = 0; - - PR_INT_STAT("TX Packet Sent", tx_ps); - PR_INT_STAT("TX Underrun", tx_ur); - PR_INT_STAT("TX Bus Error", tx_be); - PR_INT_STAT("RX Packet Received", rx_pr); - PR_INT_STAT("RX Overflow", rx_of); - PR_INT_STAT("RX Bus Error", rx_be); - len += snprintf(buf + len, sizeof(buf) - len, "\n"); - PR_INT_STAT("Total", total); - - return simple_read_from_buffer(user_buf, count, ppos, buf, len); -#undef PR_INT_STAT -} - -static const struct file_operations ag71xx_fops_int_stats = { - .open = ag71xx_debugfs_generic_open, - .read = read_file_int_stats, - .owner = THIS_MODULE -}; - -void ag71xx_debugfs_update_napi_stats(struct ag71xx *ag, int rx, int tx) -{ - struct ag71xx_napi_stats *stats = &ag->debug.napi_stats; - - if (rx) { - stats->rx_count++; - stats->rx_packets += rx; - if (rx <= AG71XX_NAPI_WEIGHT) - stats->rx[rx]++; - if (rx > stats->rx_packets_max) - stats->rx_packets_max = rx; - } - - if (tx) { - stats->tx_count++; - stats->tx_packets += tx; - if (tx <= AG71XX_NAPI_WEIGHT) - stats->tx[tx]++; - if (tx > stats->tx_packets_max) - stats->tx_packets_max = tx; - } -} - -static ssize_t read_file_napi_stats(struct file *file, char __user *user_buf, - size_t count, loff_t *ppos) -{ - struct ag71xx *ag = file->private_data; - struct ag71xx_napi_stats *stats = &ag->debug.napi_stats; - char *buf; - unsigned int buflen; - unsigned int len = 0; - unsigned long rx_avg = 0; - unsigned long tx_avg = 0; - int ret; - int i; - - buflen = 2048; - buf = kmalloc(buflen, GFP_KERNEL); - if (!buf) - return -ENOMEM; - - if (stats->rx_count) - rx_avg = stats->rx_packets / stats->rx_count; - - if (stats->tx_count) - tx_avg = stats->tx_packets / stats->tx_count; - - len += snprintf(buf + len, buflen - len, "%3s %10s %10s\n", - "len", "rx", "tx"); - - for (i = 1; i <= AG71XX_NAPI_WEIGHT; i++) - len += snprintf(buf + len, buflen - len, - "%3d: %10lu %10lu\n", - i, stats->rx[i], stats->tx[i]); - - len += snprintf(buf + len, buflen - len, "\n"); - - len += snprintf(buf + len, buflen - len, "%3s: %10lu %10lu\n", - "sum", stats->rx_count, stats->tx_count); - len += snprintf(buf + len, buflen - len, "%3s: %10lu %10lu\n", - "avg", rx_avg, tx_avg); - len += snprintf(buf + len, buflen - len, "%3s: %10lu %10lu\n", - "max", stats->rx_packets_max, stats->tx_packets_max); - len += snprintf(buf + len, buflen - len, "%3s: %10lu %10lu\n", - "pkt", stats->rx_packets, stats->tx_packets); - - ret = simple_read_from_buffer(user_buf, count, ppos, buf, len); - kfree(buf); - - return ret; -} - -static const struct file_operations ag71xx_fops_napi_stats = { - .open = ag71xx_debugfs_generic_open, - .read = read_file_napi_stats, - .owner = THIS_MODULE -}; - -#define DESC_PRINT_LEN 64 - -static ssize_t read_file_ring(struct file *file, char __user *user_buf, - size_t count, loff_t *ppos, - struct ag71xx *ag, - struct ag71xx_ring *ring, - unsigned desc_reg) -{ - int ring_size = BIT(ring->order); - int ring_mask = ring_size - 1; - char *buf; - unsigned int buflen; - unsigned int len = 0; - unsigned long flags; - ssize_t ret; - int curr; - int dirty; - u32 desc_hw; - int i; - - buflen = (ring_size * DESC_PRINT_LEN); - buf = kmalloc(buflen, GFP_KERNEL); - if (!buf) - return -ENOMEM; - - len += snprintf(buf + len, buflen - len, - "Idx ... %-8s %-8s %-8s %-8s .\n", - "desc", "next", "data", "ctrl"); - - spin_lock_irqsave(&ag->lock, flags); - - curr = (ring->curr & ring_mask); - dirty = (ring->dirty & ring_mask); - desc_hw = ag71xx_rr(ag, desc_reg); - for (i = 0; i < ring_size; i++) { - struct ag71xx_desc *desc = ag71xx_ring_desc(ring, i); - u32 desc_dma = ((u32) ring->descs_dma) + i * AG71XX_DESC_SIZE; - - len += snprintf(buf + len, buflen - len, - "%3d %c%c%c %08x %08x %08x %08x %c\n", - i, - (i == curr) ? 'C' : ' ', - (i == dirty) ? 'D' : ' ', - (desc_hw == desc_dma) ? 'H' : ' ', - desc_dma, - desc->next, - desc->data, - desc->ctrl, - (desc->ctrl & DESC_EMPTY) ? 'E' : '*'); - } - - spin_unlock_irqrestore(&ag->lock, flags); - - ret = simple_read_from_buffer(user_buf, count, ppos, buf, len); - kfree(buf); - - return ret; -} - -static ssize_t read_file_tx_ring(struct file *file, char __user *user_buf, - size_t count, loff_t *ppos) -{ - struct ag71xx *ag = file->private_data; - - return read_file_ring(file, user_buf, count, ppos, ag, &ag->tx_ring, - AG71XX_REG_TX_DESC); -} - -static const struct file_operations ag71xx_fops_tx_ring = { - .open = ag71xx_debugfs_generic_open, - .read = read_file_tx_ring, - .owner = THIS_MODULE -}; - -static ssize_t read_file_rx_ring(struct file *file, char __user *user_buf, - size_t count, loff_t *ppos) -{ - struct ag71xx *ag = file->private_data; - - return read_file_ring(file, user_buf, count, ppos, ag, &ag->rx_ring, - AG71XX_REG_RX_DESC); -} - -static const struct file_operations ag71xx_fops_rx_ring = { - .open = ag71xx_debugfs_generic_open, - .read = read_file_rx_ring, - .owner = THIS_MODULE -}; - -void ag71xx_debugfs_exit(struct ag71xx *ag) -{ - debugfs_remove_recursive(ag->debug.debugfs_dir); -} - -int ag71xx_debugfs_init(struct ag71xx *ag) -{ - struct device *dev = &ag->pdev->dev; - - ag->debug.debugfs_dir = debugfs_create_dir(dev_name(dev), - ag71xx_debugfs_root); - if (!ag->debug.debugfs_dir) { - dev_err(dev, "unable to create debugfs directory\n"); - return -ENOENT; - } - - debugfs_create_file("int_stats", S_IRUGO, ag->debug.debugfs_dir, - ag, &ag71xx_fops_int_stats); - debugfs_create_file("napi_stats", S_IRUGO, ag->debug.debugfs_dir, - ag, &ag71xx_fops_napi_stats); - debugfs_create_file("tx_ring", S_IRUGO, ag->debug.debugfs_dir, - ag, &ag71xx_fops_tx_ring); - debugfs_create_file("rx_ring", S_IRUGO, ag->debug.debugfs_dir, - ag, &ag71xx_fops_rx_ring); - - return 0; -} - -int ag71xx_debugfs_root_init(void) -{ - if (ag71xx_debugfs_root) - return -EBUSY; - - ag71xx_debugfs_root = debugfs_create_dir(KBUILD_MODNAME, NULL); - if (!ag71xx_debugfs_root) - return -ENOENT; - - return 0; -} - -void ag71xx_debugfs_root_exit(void) -{ - debugfs_remove(ag71xx_debugfs_root); - ag71xx_debugfs_root = NULL; -} diff --git a/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_ethtool.c b/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_ethtool.c deleted file mode 100644 index 9e5a53e7fc..0000000000 --- a/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_ethtool.c +++ /dev/null @@ -1,120 +0,0 @@ -/* - * Atheros AR71xx built-in ethernet mac driver - * - * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org> - * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org> - * - * Based on Atheros' AG7100 driver - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation. - */ - -#include "ag71xx.h" -#include <linux/version.h> - -static void ag71xx_ethtool_get_drvinfo(struct net_device *dev, - struct ethtool_drvinfo *info) -{ - struct ag71xx *ag = netdev_priv(dev); - - strcpy(info->driver, ag->pdev->dev.driver->name); - strcpy(info->version, AG71XX_DRV_VERSION); - strcpy(info->bus_info, dev_name(&ag->pdev->dev)); -} - -static u32 ag71xx_ethtool_get_msglevel(struct net_device *dev) -{ - struct ag71xx *ag = netdev_priv(dev); - - return ag->msg_enable; -} - -static void ag71xx_ethtool_set_msglevel(struct net_device *dev, u32 msg_level) -{ - struct ag71xx *ag = netdev_priv(dev); - - ag->msg_enable = msg_level; -} - -static void ag71xx_ethtool_get_ringparam(struct net_device *dev, - struct ethtool_ringparam *er) -{ - struct ag71xx *ag = netdev_priv(dev); - - er->tx_max_pending = AG71XX_TX_RING_SIZE_MAX; - er->rx_max_pending = AG71XX_RX_RING_SIZE_MAX; - er->rx_mini_max_pending = 0; - er->rx_jumbo_max_pending = 0; - - er->tx_pending = BIT(ag->tx_ring.order); - er->rx_pending = BIT(ag->rx_ring.order); - er->rx_mini_pending = 0; - er->rx_jumbo_pending = 0; - - if (ag->tx_ring.desc_split) - er->tx_pending /= AG71XX_TX_RING_DS_PER_PKT; -} - -static int ag71xx_ethtool_set_ringparam(struct net_device *dev, - struct ethtool_ringparam *er) -{ - struct ag71xx *ag = netdev_priv(dev); - unsigned tx_size; - unsigned rx_size; - int err = 0; - - if (er->rx_mini_pending != 0|| - er->rx_jumbo_pending != 0 || - er->rx_pending == 0 || - er->tx_pending == 0) - return -EINVAL; - - tx_size = er->tx_pending < AG71XX_TX_RING_SIZE_MAX ? - er->tx_pending : AG71XX_TX_RING_SIZE_MAX; - - rx_size = er->rx_pending < AG71XX_RX_RING_SIZE_MAX ? - er->rx_pending : AG71XX_RX_RING_SIZE_MAX; - - if (netif_running(dev)) { - err = dev->netdev_ops->ndo_stop(dev); - if (err) - return err; - } - - if (ag->tx_ring.desc_split) - tx_size *= AG71XX_TX_RING_DS_PER_PKT; - - ag->tx_ring.order = ag71xx_ring_size_order(tx_size); - ag->rx_ring.order = ag71xx_ring_size_order(rx_size); - - if (netif_running(dev)) - err = dev->netdev_ops->ndo_open(dev); - - return err; -} - -static int ag71xx_ethtool_nway_reset(struct net_device *dev) -{ - struct ag71xx *ag = netdev_priv(dev); - struct phy_device *phydev = ag->phy_dev; - - if (!phydev) - return -ENODEV; - - return genphy_restart_aneg(phydev); -} - -struct ethtool_ops ag71xx_ethtool_ops = { - .get_drvinfo = ag71xx_ethtool_get_drvinfo, - .get_msglevel = ag71xx_ethtool_get_msglevel, - .set_msglevel = ag71xx_ethtool_set_msglevel, - .get_ringparam = ag71xx_ethtool_get_ringparam, - .set_ringparam = ag71xx_ethtool_set_ringparam, - .get_link_ksettings = phy_ethtool_get_link_ksettings, - .set_link_ksettings = phy_ethtool_set_link_ksettings, - .get_link = ethtool_op_get_link, - .get_ts_info = ethtool_op_get_ts_info, - .nway_reset = ag71xx_ethtool_nway_reset, -}; diff --git a/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c b/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c deleted file mode 100644 index ebbe8a7472..0000000000 --- a/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c +++ /dev/null @@ -1,1494 +0,0 @@ -/* - * Atheros AR71xx built-in ethernet mac driver - * - * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org> - * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org> - * - * Based on Atheros' AG7100 driver - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation. - */ - -#include "ag71xx.h" - -#define AG71XX_DEFAULT_MSG_ENABLE \ - (NETIF_MSG_DRV \ - | NETIF_MSG_PROBE \ - | NETIF_MSG_LINK \ - | NETIF_MSG_TIMER \ - | NETIF_MSG_IFDOWN \ - | NETIF_MSG_IFUP \ - | NETIF_MSG_RX_ERR \ - | NETIF_MSG_TX_ERR) - -static int ag71xx_msg_level = -1; - -module_param_named(msg_level, ag71xx_msg_level, int, 0); -MODULE_PARM_DESC(msg_level, "Message level (-1=defaults,0=none,...,16=all)"); - -#define ETH_SWITCH_HEADER_LEN 2 - -static int ag71xx_tx_packets(struct ag71xx *ag, bool flush); -static void ag71xx_qca955x_sgmii_init(void); - -static inline unsigned int ag71xx_max_frame_len(unsigned int mtu) -{ - return ETH_SWITCH_HEADER_LEN + ETH_HLEN + VLAN_HLEN + mtu + ETH_FCS_LEN; -} - -static void ag71xx_dump_dma_regs(struct ag71xx *ag) -{ - DBG("%s: dma_tx_ctrl=%08x, dma_tx_desc=%08x, dma_tx_status=%08x\n", - ag->dev->name, - ag71xx_rr(ag, AG71XX_REG_TX_CTRL), - ag71xx_rr(ag, AG71XX_REG_TX_DESC), - ag71xx_rr(ag, AG71XX_REG_TX_STATUS)); - - DBG("%s: dma_rx_ctrl=%08x, dma_rx_desc=%08x, dma_rx_status=%08x\n", - ag->dev->name, - ag71xx_rr(ag, AG71XX_REG_RX_CTRL), - ag71xx_rr(ag, AG71XX_REG_RX_DESC), - ag71xx_rr(ag, AG71XX_REG_RX_STATUS)); -} - -static void ag71xx_dump_regs(struct ag71xx *ag) -{ - DBG("%s: mac_cfg1=%08x, mac_cfg2=%08x, ipg=%08x, hdx=%08x, mfl=%08x\n", - ag->dev->name, - ag71xx_rr(ag, AG71XX_REG_MAC_CFG1), - ag71xx_rr(ag, AG71XX_REG_MAC_CFG2), - ag71xx_rr(ag, AG71XX_REG_MAC_IPG), - ag71xx_rr(ag, AG71XX_REG_MAC_HDX), - ag71xx_rr(ag, AG71XX_REG_MAC_MFL)); - DBG("%s: mac_ifctl=%08x, mac_addr1=%08x, mac_addr2=%08x\n", - ag->dev->name, - ag71xx_rr(ag, AG71XX_REG_MAC_IFCTL), - ag71xx_rr(ag, AG71XX_REG_MAC_ADDR1), - ag71xx_rr(ag, AG71XX_REG_MAC_ADDR2)); - DBG("%s: fifo_cfg0=%08x, fifo_cfg1=%08x, fifo_cfg2=%08x\n", - ag->dev->name, - ag71xx_rr(ag, AG71XX_REG_FIFO_CFG0), - ag71xx_rr(ag, AG71XX_REG_FIFO_CFG1), - ag71xx_rr(ag, AG71XX_REG_FIFO_CFG2)); - DBG("%s: fifo_cfg3=%08x, fifo_cfg4=%08x, fifo_cfg5=%08x\n", - ag->dev->name, - ag71xx_rr(ag, AG71XX_REG_FIFO_CFG3), - ag71xx_rr(ag, AG71XX_REG_FIFO_CFG4), - ag71xx_rr(ag, AG71XX_REG_FIFO_CFG5)); -} - -static inline void ag71xx_dump_intr(struct ag71xx *ag, char *label, u32 intr) -{ - DBG("%s: %s intr=%08x %s%s%s%s%s%s\n", - ag->dev->name, label, intr, - (intr & AG71XX_INT_TX_PS) ? "TXPS " : "", - (intr & AG71XX_INT_TX_UR) ? "TXUR " : "", - (intr & AG71XX_INT_TX_BE) ? "TXBE " : "", - (intr & AG71XX_INT_RX_PR) ? "RXPR " : "", - (intr & AG71XX_INT_RX_OF) ? "RXOF " : "", - (intr & AG71XX_INT_RX_BE) ? "RXBE " : ""); -} - -static void ag71xx_ring_tx_clean(struct ag71xx *ag) -{ - struct ag71xx_ring *ring = &ag->tx_ring; - struct net_device *dev = ag->dev; - int ring_mask = BIT(ring->order) - 1; - u32 bytes_compl = 0, pkts_compl = 0; - - while (ring->curr != ring->dirty) { - struct ag71xx_desc *desc; - u32 i = ring->dirty & ring_mask; - - desc = ag71xx_ring_desc(ring, i); - if (!ag71xx_desc_empty(desc)) { - desc->ctrl = 0; - dev->stats.tx_errors++; - } - - if (ring->buf[i].skb) { - bytes_compl += ring->buf[i].len; - pkts_compl++; - dev_kfree_skb_any(ring->buf[i].skb); - } - ring->buf[i].skb = NULL; - ring->dirty++; - } - - /* flush descriptors */ - wmb(); - - netdev_completed_queue(dev, pkts_compl, bytes_compl); -} - -static void ag71xx_ring_tx_init(struct ag71xx *ag) -{ - struct ag71xx_ring *ring = &ag->tx_ring; - int ring_size = BIT(ring->order); - int ring_mask = BIT(ring->order) - 1; - int i; - - for (i = 0; i < ring_size; i++) { - struct ag71xx_desc *desc = ag71xx_ring_desc(ring, i); - - desc->next = (u32) (ring->descs_dma + - AG71XX_DESC_SIZE * ((i + 1) & ring_mask)); - - desc->ctrl = DESC_EMPTY; - ring->buf[i].skb = NULL; - } - - /* flush descriptors */ - wmb(); - - ring->curr = 0; - ring->dirty = 0; - netdev_reset_queue(ag->dev); -} - -static void ag71xx_ring_rx_clean(struct ag71xx *ag) -{ - struct ag71xx_ring *ring = &ag->rx_ring; - int ring_size = BIT(ring->order); - int i; - - if (!ring->buf) - return; - - for (i = 0; i < ring_size; i++) - if (ring->buf[i].rx_buf) { - dma_unmap_single(&ag->pdev->dev, ring->buf[i].dma_addr, - ag->rx_buf_size, DMA_FROM_DEVICE); - skb_free_frag(ring->buf[i].rx_buf); - } -} - -static int ag71xx_buffer_offset(struct ag71xx *ag) -{ - int offset = NET_SKB_PAD; - - /* - * On AR71xx/AR91xx packets must be 4-byte aligned. - * - * When using builtin AR8216 support, hardware adds a 2-byte header, - * so we don't need any extra alignment in that case. - */ - if (!ag71xx_get_pdata(ag)->is_ar724x || ag71xx_has_ar8216(ag)) - return offset; - - return offset + NET_IP_ALIGN; -} - -static int ag71xx_buffer_size(struct ag71xx *ag) -{ - return ag->rx_buf_size + - SKB_DATA_ALIGN(sizeof(struct skb_shared_info)); -} - -static bool ag71xx_fill_rx_buf(struct ag71xx *ag, struct ag71xx_buf *buf, - int offset, - void *(*alloc)(unsigned int size)) -{ - struct ag71xx_ring *ring = &ag->rx_ring; - struct ag71xx_desc *desc = ag71xx_ring_desc(ring, buf - &ring->buf[0]); - void *data; - - data = alloc(ag71xx_buffer_size(ag)); - if (!data) - return false; - - buf->rx_buf = data; - buf->dma_addr = dma_map_single(&ag->pdev->dev, data, ag->rx_buf_size, - DMA_FROM_DEVICE); - desc->data = (u32) buf->dma_addr + offset; - return true; -} - -static int ag71xx_ring_rx_init(struct ag71xx *ag) -{ - struct ag71xx_ring *ring = &ag->rx_ring; - int ring_size = BIT(ring->order); - int ring_mask = BIT(ring->order) - 1; - unsigned int i; - int ret; - int offset = ag71xx_buffer_offset(ag); - - ret = 0; - for (i = 0; i < ring_size; i++) { - struct ag71xx_desc *desc = ag71xx_ring_desc(ring, i); - - desc->next = (u32) (ring->descs_dma + - AG71XX_DESC_SIZE * ((i + 1) & ring_mask)); - - DBG("ag71xx: RX desc at %p, next is %08x\n", - desc, desc->next); - } - - for (i = 0; i < ring_size; i++) { - struct ag71xx_desc *desc = ag71xx_ring_desc(ring, i); - - if (!ag71xx_fill_rx_buf(ag, &ring->buf[i], offset, - netdev_alloc_frag)) { - ret = -ENOMEM; - break; - } - - desc->ctrl = DESC_EMPTY; - } - - /* flush descriptors */ - wmb(); - - ring->curr = 0; - ring->dirty = 0; - - return ret; -} - -static int ag71xx_ring_rx_refill(struct ag71xx *ag) -{ - struct ag71xx_ring *ring = &ag->rx_ring; - int ring_mask = BIT(ring->order) - 1; - unsigned int count; - int offset = ag71xx_buffer_offset(ag); - - count = 0; - for (; ring->curr - ring->dirty > 0; ring->dirty++) { - struct ag71xx_desc *desc; - unsigned int i; - - i = ring->dirty & ring_mask; - desc = ag71xx_ring_desc(ring, i); - - if (!ring->buf[i].rx_buf && - !ag71xx_fill_rx_buf(ag, &ring->buf[i], offset, - napi_alloc_frag)) - break; - - desc->ctrl = DESC_EMPTY; - count++; - } - - /* flush descriptors */ - wmb(); - - DBG("%s: %u rx descriptors refilled\n", ag->dev->name, count); - - return count; -} - -static int ag71xx_rings_init(struct ag71xx *ag) -{ - struct ag71xx_ring *tx = &ag->tx_ring; - struct ag71xx_ring *rx = &ag->rx_ring; - int ring_size = BIT(tx->order) + BIT(rx->order); - int tx_size = BIT(tx->order); - - tx->buf = kzalloc(ring_size * sizeof(*tx->buf), GFP_KERNEL); - if (!tx->buf) - return -ENOMEM; - - tx->descs_cpu = dma_alloc_coherent(&ag->pdev->dev, ring_size * AG71XX_DESC_SIZE, - &tx->descs_dma, GFP_KERNEL); - if (!tx->descs_cpu) { - kfree(tx->buf); - tx->buf = NULL; - return -ENOMEM; - } - - rx->buf = &tx->buf[tx_size]; - rx->descs_cpu = ((void *)tx->descs_cpu) + tx_size * AG71XX_DESC_SIZE; - rx->descs_dma = tx->descs_dma + tx_size * AG71XX_DESC_SIZE; - - ag71xx_ring_tx_init(ag); - return ag71xx_ring_rx_init(ag); -} - -static void ag71xx_rings_free(struct ag71xx *ag) -{ - struct ag71xx_ring *tx = &ag->tx_ring; - struct ag71xx_ring *rx = &ag->rx_ring; - int ring_size = BIT(tx->order) + BIT(rx->order); - - if (tx->descs_cpu) - dma_free_coherent(&ag->pdev->dev, ring_size * AG71XX_DESC_SIZE, - tx->descs_cpu, tx->descs_dma); - - kfree(tx->buf); - - tx->descs_cpu = NULL; - rx->descs_cpu = NULL; - tx->buf = NULL; - rx->buf = NULL; -} - -static void ag71xx_rings_cleanup(struct ag71xx *ag) -{ - ag71xx_ring_rx_clean(ag); - ag71xx_ring_tx_clean(ag); - ag71xx_rings_free(ag); - - netdev_reset_queue(ag->dev); -} - -static unsigned char *ag71xx_speed_str(struct ag71xx *ag) -{ - switch (ag->speed) { - case SPEED_1000: - return "1000"; - case SPEED_100: - return "100"; - case SPEED_10: - return "10"; - } - - return "?"; -} - -static void ag71xx_hw_set_macaddr(struct ag71xx *ag, unsigned char *mac) -{ - u32 t; - - t = (((u32) mac[5]) << 24) | (((u32) mac[4]) << 16) - | (((u32) mac[3]) << 8) | ((u32) mac[2]); - - ag71xx_wr(ag, AG71XX_REG_MAC_ADDR1, t); - - t = (((u32) mac[1]) << 24) | (((u32) mac[0]) << 16); - ag71xx_wr(ag, AG71XX_REG_MAC_ADDR2, t); -} - -static void ag71xx_dma_reset(struct ag71xx *ag) -{ - u32 val; - int i; - - ag71xx_dump_dma_regs(ag); - - /* stop RX and TX */ - ag71xx_wr(ag, AG71XX_REG_RX_CTRL, 0); - ag71xx_wr(ag, AG71XX_REG_TX_CTRL, 0); - - /* - * give the hardware some time to really stop all rx/tx activity - * clearing the descriptors too early causes random memory corruption - */ - mdelay(1); - - /* clear descriptor addresses */ - ag71xx_wr(ag, AG71XX_REG_TX_DESC, ag->stop_desc_dma); - ag71xx_wr(ag, AG71XX_REG_RX_DESC, ag->stop_desc_dma); - - /* clear pending RX/TX interrupts */ - for (i = 0; i < 256; i++) { - ag71xx_wr(ag, AG71XX_REG_RX_STATUS, RX_STATUS_PR); - ag71xx_wr(ag, AG71XX_REG_TX_STATUS, TX_STATUS_PS); - } - - /* clear pending errors */ - ag71xx_wr(ag, AG71XX_REG_RX_STATUS, RX_STATUS_BE | RX_STATUS_OF); - ag71xx_wr(ag, AG71XX_REG_TX_STATUS, TX_STATUS_BE | TX_STATUS_UR); - - val = ag71xx_rr(ag, AG71XX_REG_RX_STATUS); - if (val) - pr_alert("%s: unable to clear DMA Rx status: %08x\n", - ag->dev->name, val); - - val = ag71xx_rr(ag, AG71XX_REG_TX_STATUS); - - /* mask out reserved bits */ - val &= ~0xff000000; - - if (val) - pr_alert("%s: unable to clear DMA Tx status: %08x\n", - ag->dev->name, val); - - ag71xx_dump_dma_regs(ag); -} - -#define MAC_CFG1_INIT (MAC_CFG1_RXE | MAC_CFG1_TXE | \ - MAC_CFG1_SRX | MAC_CFG1_STX) - -#define FIFO_CFG0_INIT (FIFO_CFG0_ALL << FIFO_CFG0_ENABLE_SHIFT) - -#define FIFO_CFG4_INIT (FIFO_CFG4_DE | FIFO_CFG4_DV | FIFO_CFG4_FC | \ - FIFO_CFG4_CE | FIFO_CFG4_CR | FIFO_CFG4_LM | \ - FIFO_CFG4_LO | FIFO_CFG4_OK | FIFO_CFG4_MC | \ - FIFO_CFG4_BC | FIFO_CFG4_DR | FIFO_CFG4_LE | \ - FIFO_CFG4_CF | FIFO_CFG4_PF | FIFO_CFG4_UO | \ - FIFO_CFG4_VT) - -#define FIFO_CFG5_INIT (FIFO_CFG5_DE | FIFO_CFG5_DV | FIFO_CFG5_FC | \ - FIFO_CFG5_CE | FIFO_CFG5_LO | FIFO_CFG5_OK | \ - FIFO_CFG5_MC | FIFO_CFG5_BC | FIFO_CFG5_DR | \ - FIFO_CFG5_CF | FIFO_CFG5_PF | FIFO_CFG5_VT | \ - FIFO_CFG5_LE | FIFO_CFG5_FT | FIFO_CFG5_16 | \ - FIFO_CFG5_17 | FIFO_CFG5_SF) - -static void ag71xx_hw_stop(struct ag71xx *ag) -{ - /* disable all interrupts and stop the rx/tx engine */ - ag71xx_wr(ag, AG71XX_REG_INT_ENABLE, 0); - ag71xx_wr(ag, AG71XX_REG_RX_CTRL, 0); - ag71xx_wr(ag, AG71XX_REG_TX_CTRL, 0); -} - -static void ag71xx_hw_setup(struct ag71xx *ag) -{ - struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag); - u32 init = MAC_CFG1_INIT; - - /* setup MAC configuration registers */ - if (pdata->use_flow_control) - init |= MAC_CFG1_TFC | MAC_CFG1_RFC; - ag71xx_wr(ag, AG71XX_REG_MAC_CFG1, init); - - ag71xx_sb(ag, AG71XX_REG_MAC_CFG2, - MAC_CFG2_PAD_CRC_EN | MAC_CFG2_LEN_CHECK); - - /* setup max frame length to zero */ - ag71xx_wr(ag, AG71XX_REG_MAC_MFL, 0); - - /* setup FIFO configuration registers */ - ag71xx_wr(ag, AG71XX_REG_FIFO_CFG0, FIFO_CFG0_INIT); - if (pdata->is_ar724x) { - ag71xx_wr(ag, AG71XX_REG_FIFO_CFG1, 0x0010ffff); - ag71xx_wr(ag, AG71XX_REG_FIFO_CFG2, 0x015500aa); - } else { - ag71xx_wr(ag, AG71XX_REG_FIFO_CFG1, 0x0fff0000); - ag71xx_wr(ag, AG71XX_REG_FIFO_CFG2, 0x00001fff); - } - ag71xx_wr(ag, AG71XX_REG_FIFO_CFG4, FIFO_CFG4_INIT); - ag71xx_wr(ag, AG71XX_REG_FIFO_CFG5, FIFO_CFG5_INIT); -} - -static void ag71xx_hw_init(struct ag71xx *ag) -{ - struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag); - u32 reset_mask = pdata->reset_bit; - - ag71xx_hw_stop(ag); - - if (pdata->is_ar724x) { - u32 reset_phy = reset_mask; - - reset_phy &= AR71XX_RESET_GE0_PHY | AR71XX_RESET_GE1_PHY; - reset_mask &= ~(AR71XX_RESET_GE0_PHY | AR71XX_RESET_GE1_PHY); - - ath79_device_reset_set(reset_phy); - msleep(50); - ath79_device_reset_clear(reset_phy); - msleep(200); - } - - ag71xx_sb(ag, AG71XX_REG_MAC_CFG1, MAC_CFG1_SR); - udelay(20); - - ath79_device_reset_set(reset_mask); - msleep(100); - ath79_device_reset_clear(reset_mask); - msleep(200); - - ag71xx_hw_setup(ag); - - ag71xx_dma_reset(ag); -} - -static void ag71xx_fast_reset(struct ag71xx *ag) -{ - struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag); - struct net_device *dev = ag->dev; - u32 reset_mask = pdata->reset_bit; - u32 rx_ds; - u32 mii_reg; - - reset_mask &= AR71XX_RESET_GE0_MAC | AR71XX_RESET_GE1_MAC; - - ag71xx_hw_stop(ag); - wmb(); - - mii_reg = ag71xx_rr(ag, AG71XX_REG_MII_CFG); - rx_ds = ag71xx_rr(ag, AG71XX_REG_RX_DESC); - - ag71xx_tx_packets(ag, true); - - ath79_device_reset_set(reset_mask); - udelay(10); - ath79_device_reset_clear(reset_mask); - udelay(10); - - ag71xx_dma_reset(ag); - ag71xx_hw_setup(ag); - ag->tx_ring.curr = 0; - ag->tx_ring.dirty = 0; - netdev_reset_queue(ag->dev); - - /* setup max frame length */ - ag71xx_wr(ag, AG71XX_REG_MAC_MFL, - ag71xx_max_frame_len(ag->dev->mtu)); - - ag71xx_wr(ag, AG71XX_REG_RX_DESC, rx_ds); - ag71xx_wr(ag, AG71XX_REG_TX_DESC, ag->tx_ring.descs_dma); - ag71xx_wr(ag, AG71XX_REG_MII_CFG, mii_reg); - - ag71xx_hw_set_macaddr(ag, dev->dev_addr); -} - -static void ag71xx_hw_start(struct ag71xx *ag) -{ - /* start RX engine */ - ag71xx_wr(ag, AG71XX_REG_RX_CTRL, RX_CTRL_RXE); - - /* enable interrupts */ - ag71xx_wr(ag, AG71XX_REG_INT_ENABLE, AG71XX_INT_INIT); - - netif_wake_queue(ag->dev); -} - -static void -__ag71xx_link_adjust(struct ag71xx *ag, bool update) -{ - struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag); - u32 cfg2; - u32 ifctl; - u32 fifo5; - u32 fifo3; - - if (!ag->link && update) { - ag71xx_hw_stop(ag); - netif_carrier_off(ag->dev); - if (netif_msg_link(ag)) - pr_info("%s: link down\n", ag->dev->name); - return; - } - - if (pdata->is_ar724x) - ag71xx_fast_reset(ag); - - cfg2 = ag71xx_rr(ag, AG71XX_REG_MAC_CFG2); - cfg2 &= ~(MAC_CFG2_IF_1000 | MAC_CFG2_IF_10_100 | MAC_CFG2_FDX); - cfg2 |= (ag->duplex) ? MAC_CFG2_FDX : 0; - - ifctl = ag71xx_rr(ag, AG71XX_REG_MAC_IFCTL); - ifctl &= ~(MAC_IFCTL_SPEED); - - fifo5 = ag71xx_rr(ag, AG71XX_REG_FIFO_CFG5); - fifo5 &= ~FIFO_CFG5_BM; - - switch (ag->speed) { - case SPEED_1000: - cfg2 |= MAC_CFG2_IF_1000; - fifo5 |= FIFO_CFG5_BM; - break; - case SPEED_100: - cfg2 |= MAC_CFG2_IF_10_100; - ifctl |= MAC_IFCTL_SPEED; - break; - case SPEED_10: - cfg2 |= MAC_CFG2_IF_10_100; - break; - default: - BUG(); - return; - } - - if (pdata->is_ar91xx) - fifo3 = 0x00780fff; - else if (pdata->is_ar724x) - fifo3 = 0x01f00140; - else - fifo3 = 0x008001ff; - - if (ag->tx_ring.desc_split) { - fifo3 &= 0xffff; - fifo3 |= ((2048 - ag->tx_ring.desc_split) / 4) << 16; - } - - ag71xx_wr(ag, AG71XX_REG_FIFO_CFG3, fifo3); - - if (update && pdata->set_speed) - pdata->set_speed(ag->speed); - - if (update && pdata->enable_sgmii_fixup) - ag71xx_qca955x_sgmii_init(); - - ag71xx_wr(ag, AG71XX_REG_MAC_CFG2, cfg2); - ag71xx_wr(ag, AG71XX_REG_FIFO_CFG5, fifo5); - ag71xx_wr(ag, AG71XX_REG_MAC_IFCTL, ifctl); - - if (pdata->disable_inline_checksum_engine) { - /* - * The rx ring buffer can stall on small packets on QCA953x and - * QCA956x. Disabling the inline checksum engine fixes the stall. - * The wr, rr functions cannot be used since this hidden register - * is outside of the normal ag71xx register block. - */ - void __iomem *dam = ioremap_nocache(0xb90001bc, 0x4); - if (dam) { - __raw_writel(__raw_readl(dam) & ~BIT(27), dam); - (void)__raw_readl(dam); - iounmap(dam); - } - } - - ag71xx_hw_start(ag); - - netif_carrier_on(ag->dev); - if (update && netif_msg_link(ag)) - pr_info("%s: link up (%sMbps/%s duplex)\n", - ag->dev->name, - ag71xx_speed_str(ag), - (DUPLEX_FULL == ag->duplex) ? "Full" : "Half"); - - ag71xx_dump_regs(ag); -} - -void ag71xx_link_adjust(struct ag71xx *ag) -{ - __ag71xx_link_adjust(ag, true); -} - -static int ag71xx_hw_enable(struct ag71xx *ag) -{ - int ret; - - ret = ag71xx_rings_init(ag); - if (ret) - return ret; - - napi_enable(&ag->napi); - ag71xx_wr(ag, AG71XX_REG_TX_DESC, ag->tx_ring.descs_dma); - ag71xx_wr(ag, AG71XX_REG_RX_DESC, ag->rx_ring.descs_dma); - netif_start_queue(ag->dev); - - return 0; -} - -static void ag71xx_hw_disable(struct ag71xx *ag) -{ - netif_stop_queue(ag->dev); - - ag71xx_hw_stop(ag); - ag71xx_dma_reset(ag); - - napi_disable(&ag->napi); - del_timer_sync(&ag->oom_timer); - - ag71xx_rings_cleanup(ag); -} - -static int ag71xx_open(struct net_device *dev) -{ - struct ag71xx *ag = netdev_priv(dev); - unsigned int max_frame_len; - int ret; - - netif_carrier_off(dev); - max_frame_len = ag71xx_max_frame_len(dev->mtu); - ag->rx_buf_size = SKB_DATA_ALIGN(max_frame_len + NET_SKB_PAD + NET_IP_ALIGN); - - /* setup max frame length */ - ag71xx_wr(ag, AG71XX_REG_MAC_MFL, max_frame_len); - ag71xx_hw_set_macaddr(ag, dev->dev_addr); - - ret = ag71xx_hw_enable(ag); - if (ret) - goto err; - - ag71xx_phy_start(ag); - - return 0; - -err: - ag71xx_rings_cleanup(ag); - return ret; -} - -static int ag71xx_stop(struct net_device *dev) -{ - struct ag71xx *ag = netdev_priv(dev); - - netif_carrier_off(dev); - ag71xx_phy_stop(ag); - ag71xx_hw_disable(ag); - - return 0; -} - -static int ag71xx_fill_dma_desc(struct ag71xx_ring *ring, u32 addr, int len) -{ - int i; - struct ag71xx_desc *desc; - int ring_mask = BIT(ring->order) - 1; - int ndesc = 0; - int split = ring->desc_split; - - if (!split) - split = len; - - while (len > 0) { - unsigned int cur_len = len; - - i = (ring->curr + ndesc) & ring_mask; - desc = ag71xx_ring_desc(ring, i); - - if (!ag71xx_desc_empty(desc)) - return -1; - - if (cur_len > split) { - cur_len = split; - - /* - * TX will hang if DMA transfers <= 4 bytes, - * make sure next segment is more than 4 bytes long. - */ - if (len <= split + 4) - cur_len -= 4; - } - - desc->data = addr; - addr += cur_len; - len -= cur_len; - - if (len > 0) - cur_len |= DESC_MORE; - - /* prevent early tx attempt of this descriptor */ - if (!ndesc) - cur_len |= DESC_EMPTY; - - desc->ctrl = cur_len; - ndesc++; - } - - return ndesc; -} - -static netdev_tx_t ag71xx_hard_start_xmit(struct sk_buff *skb, - struct net_device *dev) -{ - struct ag71xx *ag = netdev_priv(dev); - struct ag71xx_ring *ring = &ag->tx_ring; - int ring_mask = BIT(ring->order) - 1; - int ring_size = BIT(ring->order); - struct ag71xx_desc *desc; - dma_addr_t dma_addr; - int i, n, ring_min; - - if (ag71xx_has_ar8216(ag)) - ag71xx_add_ar8216_header(ag, skb); - - if (skb->len <= 4) { - DBG("%s: packet len is too small\n", ag->dev->name); - goto err_drop; - } - - dma_addr = dma_map_single(&ag->pdev->dev, skb->data, skb->len, - DMA_TO_DEVICE); - - i = ring->curr & ring_mask; - desc = ag71xx_ring_desc(ring, i); - - /* setup descriptor fields */ - n = ag71xx_fill_dma_desc(ring, (u32) dma_addr, skb->len & ag->desc_pktlen_mask); - if (n < 0) - goto err_drop_unmap; - - i = (ring->curr + n - 1) & ring_mask; - ring->buf[i].len = skb->len; - ring->buf[i].skb = skb; - - netdev_sent_queue(dev, skb->len); - - skb_tx_timestamp(skb); - - desc->ctrl &= ~DESC_EMPTY; - ring->curr += n; - - /* flush descriptor */ - wmb(); - - ring_min = 2; - if (ring->desc_split) - ring_min *= AG71XX_TX_RING_DS_PER_PKT; - - if (ring->curr - ring->dirty >= ring_size - ring_min) { - DBG("%s: tx queue full\n", dev->name); - netif_stop_queue(dev); - } - - DBG("%s: packet injected into TX queue\n", ag->dev->name); - - /* enable TX engine */ - ag71xx_wr(ag, AG71XX_REG_TX_CTRL, TX_CTRL_TXE); - - return NETDEV_TX_OK; - -err_drop_unmap: - dma_unmap_single(&ag->pdev->dev, dma_addr, skb->len, DMA_TO_DEVICE); - -err_drop: - dev->stats.tx_dropped++; - - dev_kfree_skb(skb); - return NETDEV_TX_OK; -} - -static int ag71xx_do_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) -{ - struct ag71xx *ag = netdev_priv(dev); - - switch (cmd) { - case SIOCSIFHWADDR: - if (copy_from_user - (dev->dev_addr, ifr->ifr_data, sizeof(dev->dev_addr))) - return -EFAULT; - return 0; - - case SIOCGIFHWADDR: - if (copy_to_user - (ifr->ifr_data, dev->dev_addr, sizeof(dev->dev_addr))) - return -EFAULT; - return 0; - - case SIOCGMIIPHY: - case SIOCGMIIREG: - case SIOCSMIIREG: - if (ag->phy_dev == NULL) - break; - - return phy_mii_ioctl(ag->phy_dev, ifr, cmd); - - default: - break; - } - - return -EOPNOTSUPP; -} - -static void ag71xx_oom_timer_handler(unsigned long data) -{ - struct net_device *dev = (struct net_device *) data; - struct ag71xx *ag = netdev_priv(dev); - - napi_schedule(&ag->napi); -} - -static void ag71xx_tx_timeout(struct net_device *dev) -{ - struct ag71xx *ag = netdev_priv(dev); - - if (netif_msg_tx_err(ag)) - pr_info("%s: tx timeout\n", ag->dev->name); - - schedule_delayed_work(&ag->restart_work, 1); -} - -static void ag71xx_bit_set(void __iomem *reg, u32 bit) -{ - u32 val = __raw_readl(reg) | bit; - __raw_writel(val, reg); - __raw_readl(reg); -} - -static void ag71xx_bit_clear(void __iomem *reg, u32 bit) -{ - u32 val = __raw_readl(reg) & ~bit; - __raw_writel(val, reg); - __raw_readl(reg); -} - -static void ag71xx_qca955x_sgmii_init() -{ - void __iomem *gmac_base; - u32 mr_an_status, sgmii_status; - u8 tries = 0; - - gmac_base = ioremap_nocache(QCA955X_GMAC_BASE, QCA955X_GMAC_SIZE); - - if (!gmac_base) - goto sgmii_out; - - mr_an_status = __raw_readl(gmac_base + QCA955X_GMAC_REG_MR_AN_STATUS); - if (!(mr_an_status & QCA955X_MR_AN_STATUS_AN_ABILITY)) - goto sgmii_out; - - __raw_writel(QCA955X_SGMII_RESET_RX_CLK_N_RESET , - gmac_base + QCA955X_GMAC_REG_SGMII_RESET); - __raw_readl(gmac_base + QCA955X_GMAC_REG_SGMII_RESET); - udelay(10); - - /* Init sequence */ - ag71xx_bit_set(gmac_base + QCA955X_GMAC_REG_SGMII_RESET, - QCA955X_SGMII_RESET_HW_RX_125M_N); - udelay(10); - - ag71xx_bit_set(gmac_base + QCA955X_GMAC_REG_SGMII_RESET, - QCA955X_SGMII_RESET_RX_125M_N); - udelay(10); - - ag71xx_bit_set(gmac_base + QCA955X_GMAC_REG_SGMII_RESET, - QCA955X_SGMII_RESET_TX_125M_N); - udelay(10); - - ag71xx_bit_set(gmac_base + QCA955X_GMAC_REG_SGMII_RESET, - QCA955X_SGMII_RESET_RX_CLK_N); - udelay(10); - - ag71xx_bit_set(gmac_base + QCA955X_GMAC_REG_SGMII_RESET, - QCA955X_SGMII_RESET_TX_CLK_N); - udelay(10); - - do { - ag71xx_bit_set(gmac_base + QCA955X_GMAC_REG_MR_AN_CONTROL, - QCA955X_MR_AN_CONTROL_PHY_RESET | - QCA955X_MR_AN_CONTROL_AN_ENABLE); - udelay(100); - ag71xx_bit_clear(gmac_base + QCA955X_GMAC_REG_MR_AN_CONTROL, - QCA955X_MR_AN_CONTROL_PHY_RESET); - mdelay(10); - sgmii_status = __raw_readl(gmac_base + QCA955X_GMAC_REG_SGMII_DEBUG) & 0xF; - - if (tries++ >= QCA955X_SGMII_LINK_WAR_MAX_TRY) { - pr_warn("ag71xx: max retries for SGMII fixup exceeded!\n"); - break; - } - } while (!(sgmii_status == 0xf || sgmii_status == 0x10)); - -sgmii_out: - iounmap(gmac_base); -} - -static void ag71xx_restart_work_func(struct work_struct *work) -{ - struct ag71xx *ag = container_of(work, struct ag71xx, restart_work.work); - - rtnl_lock(); - ag71xx_hw_disable(ag); - ag71xx_hw_enable(ag); - if (ag->link) - __ag71xx_link_adjust(ag, false); - rtnl_unlock(); -} - -static bool ag71xx_check_dma_stuck(struct ag71xx *ag) -{ - unsigned long timestamp; - u32 rx_sm, tx_sm, rx_fd; - - timestamp = netdev_get_tx_queue(ag->dev, 0)->trans_start; - if (likely(time_before(jiffies, timestamp + HZ/10))) - return false; - - if (!netif_carrier_ok(ag->dev)) - return false; - - rx_sm = ag71xx_rr(ag, AG71XX_REG_RX_SM); - if ((rx_sm & 0x7) == 0x3 && ((rx_sm >> 4) & 0x7) == 0x6) - return true; - - tx_sm = ag71xx_rr(ag, AG71XX_REG_TX_SM); - rx_fd = ag71xx_rr(ag, AG71XX_REG_FIFO_DEPTH); - if (((tx_sm >> 4) & 0x7) == 0 && ((rx_sm & 0x7) == 0) && - ((rx_sm >> 4) & 0x7) == 0 && rx_fd == 0) - return true; - - return false; -} - -static int ag71xx_tx_packets(struct ag71xx *ag, bool flush) -{ - struct ag71xx_ring *ring = &ag->tx_ring; - struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag); - bool dma_stuck = false; - int ring_mask = BIT(ring->order) - 1; - int ring_size = BIT(ring->order); - int sent = 0; - int bytes_compl = 0; - int n = 0; - - DBG("%s: processing TX ring\n", ag->dev->name); - - while (ring->dirty + n != ring->curr) { - unsigned int i = (ring->dirty + n) & ring_mask; - struct ag71xx_desc *desc = ag71xx_ring_desc(ring, i); - struct sk_buff *skb = ring->buf[i].skb; - - if (!flush && !ag71xx_desc_empty(desc)) { - if (pdata->is_ar724x && - ag71xx_check_dma_stuck(ag)) { - schedule_delayed_work(&ag->restart_work, HZ / 2); - dma_stuck = true; - } - break; - } - - if (flush) - desc->ctrl |= DESC_EMPTY; - - n++; - if (!skb) - continue; - - dev_kfree_skb_any(skb); - ring->buf[i].skb = NULL; - - bytes_compl += ring->buf[i].len; - - sent++; - ring->dirty += n; - - while (n > 0) { - ag71xx_wr(ag, AG71XX_REG_TX_STATUS, TX_STATUS_PS); - n--; - } - } - - DBG("%s: %d packets sent out\n", ag->dev->name, sent); - - if (!sent) - return 0; - - ag->dev->stats.tx_bytes += bytes_compl; - ag->dev->stats.tx_packets += sent; - - netdev_completed_queue(ag->dev, sent, bytes_compl); - if ((ring->curr - ring->dirty) < (ring_size * 3) / 4) - netif_wake_queue(ag->dev); - - if (!dma_stuck) - cancel_delayed_work(&ag->restart_work); - - return sent; -} - -static int ag71xx_rx_packets(struct ag71xx *ag, int limit) -{ - struct net_device *dev = ag->dev; - struct ag71xx_ring *ring = &ag->rx_ring; - int offset = ag71xx_buffer_offset(ag); - unsigned int pktlen_mask = ag->desc_pktlen_mask; - int ring_mask = BIT(ring->order) - 1; - int ring_size = BIT(ring->order); - struct sk_buff_head queue; - struct sk_buff *skb; - int done = 0; - - DBG("%s: rx packets, limit=%d, curr=%u, dirty=%u\n", - dev->name, limit, ring->curr, ring->dirty); - - skb_queue_head_init(&queue); - - while (done < limit) { - unsigned int i = ring->curr & ring_mask; - struct ag71xx_desc *desc = ag71xx_ring_desc(ring, i); - int pktlen; - int err = 0; - - if (ag71xx_desc_empty(desc)) - break; - - if ((ring->dirty + ring_size) == ring->curr) { - ag71xx_assert(0); - break; - } - - ag71xx_wr(ag, AG71XX_REG_RX_STATUS, RX_STATUS_PR); - - pktlen = desc->ctrl & pktlen_mask; - pktlen -= ETH_FCS_LEN; - - dma_unmap_single(&ag->pdev->dev, ring->buf[i].dma_addr, - ag->rx_buf_size, DMA_FROM_DEVICE); - - dev->stats.rx_packets++; - dev->stats.rx_bytes += pktlen; - - skb = build_skb(ring->buf[i].rx_buf, ag71xx_buffer_size(ag)); - if (!skb) { - skb_free_frag(ring->buf[i].rx_buf); - goto next; - } - - skb_reserve(skb, offset); - skb_put(skb, pktlen); - - if (ag71xx_has_ar8216(ag)) - err = ag71xx_remove_ar8216_header(ag, skb, pktlen); - - if (err) { - dev->stats.rx_dropped++; - kfree_skb(skb); - } else { - skb->dev = dev; - skb->ip_summed = CHECKSUM_NONE; - __skb_queue_tail(&queue, skb); - } - -next: - ring->buf[i].rx_buf = NULL; - done++; - - ring->curr++; - } - - ag71xx_ring_rx_refill(ag); - - while ((skb = __skb_dequeue(&queue)) != NULL) { - skb->protocol = eth_type_trans(skb, dev); - netif_receive_skb(skb); - } - - DBG("%s: rx finish, curr=%u, dirty=%u, done=%d\n", - dev->name, ring->curr, ring->dirty, done); - - return done; -} - -static int ag71xx_poll(struct napi_struct *napi, int limit) -{ - struct ag71xx *ag = container_of(napi, struct ag71xx, napi); - struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag); - struct net_device *dev = ag->dev; - struct ag71xx_ring *rx_ring = &ag->rx_ring; - int rx_ring_size = BIT(rx_ring->order); - unsigned long flags; - u32 status; - int tx_done; - int rx_done; - - pdata->ddr_flush(); - tx_done = ag71xx_tx_packets(ag, false); - - DBG("%s: processing RX ring\n", dev->name); - rx_done = ag71xx_rx_packets(ag, limit); - - ag71xx_debugfs_update_napi_stats(ag, rx_done, tx_done); - - if (rx_ring->buf[rx_ring->dirty % rx_ring_size].rx_buf == NULL) - goto oom; - - status = ag71xx_rr(ag, AG71XX_REG_RX_STATUS); - if (unlikely(status & RX_STATUS_OF)) { - ag71xx_wr(ag, AG71XX_REG_RX_STATUS, RX_STATUS_OF); - dev->stats.rx_fifo_errors++; - - /* restart RX */ - ag71xx_wr(ag, AG71XX_REG_RX_CTRL, RX_CTRL_RXE); - } - - if (rx_done < limit) { - if (status & RX_STATUS_PR) - goto more; - - status = ag71xx_rr(ag, AG71XX_REG_TX_STATUS); - if (status & TX_STATUS_PS) - goto more; - - DBG("%s: disable polling mode, rx=%d, tx=%d,limit=%d\n", - dev->name, rx_done, tx_done, limit); - - napi_complete(napi); - - /* enable interrupts */ - spin_lock_irqsave(&ag->lock, flags); - ag71xx_int_enable(ag, AG71XX_INT_POLL); - spin_unlock_irqrestore(&ag->lock, flags); - return rx_done; - } - -more: - DBG("%s: stay in polling mode, rx=%d, tx=%d, limit=%d\n", - dev->name, rx_done, tx_done, limit); - return limit; - -oom: - if (netif_msg_rx_err(ag)) - pr_info("%s: out of memory\n", dev->name); - - mod_timer(&ag->oom_timer, jiffies + AG71XX_OOM_REFILL); - napi_complete(napi); - return 0; -} - -static irqreturn_t ag71xx_interrupt(int irq, void *dev_id) -{ - struct net_device *dev = dev_id; - struct ag71xx *ag = netdev_priv(dev); - u32 status; - - status = ag71xx_rr(ag, AG71XX_REG_INT_STATUS); - ag71xx_dump_intr(ag, "raw", status); - - if (unlikely(!status)) - return IRQ_NONE; - - if (unlikely(status & AG71XX_INT_ERR)) { - if (status & AG71XX_INT_TX_BE) { - ag71xx_wr(ag, AG71XX_REG_TX_STATUS, TX_STATUS_BE); - dev_err(&dev->dev, "TX BUS error\n"); - } - if (status & AG71XX_INT_RX_BE) { - ag71xx_wr(ag, AG71XX_REG_RX_STATUS, RX_STATUS_BE); - dev_err(&dev->dev, "RX BUS error\n"); - } - } - - if (likely(status & AG71XX_INT_POLL)) { - ag71xx_int_disable(ag, AG71XX_INT_POLL); - DBG("%s: enable polling mode\n", dev->name); - napi_schedule(&ag->napi); - } - - ag71xx_debugfs_update_int_stats(ag, status); - - return IRQ_HANDLED; -} - -#ifdef CONFIG_NET_POLL_CONTROLLER -/* - * Polling 'interrupt' - used by things like netconsole to send skbs - * without having to re-enable interrupts. It's not called while - * the interrupt routine is executing. - */ -static void ag71xx_netpoll(struct net_device *dev) -{ - disable_irq(dev->irq); - ag71xx_interrupt(dev->irq, dev); - enable_irq(dev->irq); -} -#endif - -static int ag71xx_change_mtu(struct net_device *dev, int new_mtu) -{ - struct ag71xx *ag = netdev_priv(dev); - unsigned int max_frame_len; - - max_frame_len = ag71xx_max_frame_len(new_mtu); - if (new_mtu < 68 || max_frame_len > ag->max_frame_len) - return -EINVAL; - - if (netif_running(dev)) - return -EBUSY; - - dev->mtu = new_mtu; - ag71xx_wr(ag, AG71XX_REG_MAC_MFL, - ag71xx_max_frame_len(dev->mtu)); - - return 0; -} - -static const struct net_device_ops ag71xx_netdev_ops = { - .ndo_open = ag71xx_open, - .ndo_stop = ag71xx_stop, - .ndo_start_xmit = ag71xx_hard_start_xmit, - .ndo_do_ioctl = ag71xx_do_ioctl, - .ndo_tx_timeout = ag71xx_tx_timeout, - .ndo_change_mtu = ag71xx_change_mtu, - .ndo_set_mac_address = eth_mac_addr, - .ndo_validate_addr = eth_validate_addr, -#ifdef CONFIG_NET_POLL_CONTROLLER - .ndo_poll_controller = ag71xx_netpoll, -#endif -}; - -static int ag71xx_probe(struct platform_device *pdev) -{ - struct net_device *dev; - struct resource *res; - struct ag71xx *ag; - struct ag71xx_platform_data *pdata; - int tx_size, err; - - pdata = pdev->dev.platform_data; - if (!pdata) { - dev_err(&pdev->dev, "no platform data specified\n"); - return -ENXIO; - - } - - if (pdata->mii_bus_dev == NULL && pdata->phy_mask) { - dev_err(&pdev->dev, "no MII bus device specified\n"); - return -EINVAL; - } - - dev = devm_alloc_etherdev(&pdev->dev, sizeof(*ag)); - if (!dev) - return -ENOMEM; - - if (!pdata->max_frame_len || !pdata->desc_pktlen_mask) - return -EINVAL; - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) - return -EINVAL; - - SET_NETDEV_DEV(dev, &pdev->dev); - - ag = netdev_priv(dev); - ag->pdev = pdev; - ag->dev = dev; - ag->msg_enable = netif_msg_init(ag71xx_msg_level, - AG71XX_DEFAULT_MSG_ENABLE); - spin_lock_init(&ag->lock); - - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mac_base"); - if (!res) { - dev_err(&pdev->dev, "no mac_base resource found\n"); - return -ENXIO; - } - - ag->mac_base = devm_ioremap_nocache(&pdev->dev, res->start, - res->end - res->start + 1); - if (!ag->mac_base) - return -ENOMEM; - - dev->irq = platform_get_irq(pdev, 0); - err = devm_request_irq(&pdev->dev, dev->irq, ag71xx_interrupt, - 0x0, dev_name(&pdev->dev), dev); - if (err) { - dev_err(&pdev->dev, "unable to request IRQ %d\n", dev->irq); - return err; - } - - dev->base_addr = (unsigned long)ag->mac_base; - dev->netdev_ops = &ag71xx_netdev_ops; - dev->ethtool_ops = &ag71xx_ethtool_ops; - - INIT_DELAYED_WORK(&ag->restart_work, ag71xx_restart_work_func); - - init_timer(&ag->oom_timer); - ag->oom_timer.data = (unsigned long) dev; - ag->oom_timer.function = ag71xx_oom_timer_handler; - - tx_size = AG71XX_TX_RING_SIZE_DEFAULT; - ag->rx_ring.order = ag71xx_ring_size_order(AG71XX_RX_RING_SIZE_DEFAULT); - - ag->max_frame_len = pdata->max_frame_len; - ag->desc_pktlen_mask = pdata->desc_pktlen_mask; - - if (!pdata->is_ar724x && !pdata->is_ar91xx) { - ag->tx_ring.desc_split = AG71XX_TX_RING_SPLIT; - tx_size *= AG71XX_TX_RING_DS_PER_PKT; - } - ag->tx_ring.order = ag71xx_ring_size_order(tx_size); - - ag->stop_desc = dmam_alloc_coherent(&pdev->dev, - sizeof(struct ag71xx_desc), - &ag->stop_desc_dma, GFP_KERNEL); - - if (!ag->stop_desc) - return -ENOMEM; - - ag->stop_desc->data = 0; - ag->stop_desc->ctrl = 0; - ag->stop_desc->next = (u32) ag->stop_desc_dma; - - memcpy(dev->dev_addr, pdata->mac_addr, ETH_ALEN); - - netif_napi_add(dev, &ag->napi, ag71xx_poll, AG71XX_NAPI_WEIGHT); - - ag71xx_dump_regs(ag); - - ag71xx_wr(ag, AG71XX_REG_MAC_CFG1, 0); - - ag71xx_hw_init(ag); - - ag71xx_dump_regs(ag); - - err = ag71xx_phy_connect(ag); - if (err) - return err; - - err = ag71xx_debugfs_init(ag); - if (err) - goto err_phy_disconnect; - - platform_set_drvdata(pdev, dev); - - err = register_netdev(dev); - if (err) { - dev_err(&pdev->dev, "unable to register net device\n"); - platform_set_drvdata(pdev, NULL); - ag71xx_debugfs_exit(ag); - goto err_phy_disconnect; - } - - pr_info("%s: Atheros AG71xx at 0x%08lx, irq %d, mode: %s\n", - dev->name, (unsigned long) ag->mac_base, dev->irq, - phy_modes(pdata->phy_if_mode)); - - return 0; - -err_phy_disconnect: - ag71xx_phy_disconnect(ag); - return err; -} - -static int ag71xx_remove(struct platform_device *pdev) -{ - struct net_device *dev = platform_get_drvdata(pdev); - struct ag71xx *ag; - - if (!dev) - return 0; - - ag = netdev_priv(dev); - ag71xx_debugfs_exit(ag); - ag71xx_phy_disconnect(ag); - unregister_netdev(dev); - platform_set_drvdata(pdev, NULL); - return 0; -} - -static struct platform_driver ag71xx_driver = { - .probe = ag71xx_probe, - .remove = ag71xx_remove, - .driver = { - .name = AG71XX_DRV_NAME, - } -}; - -static int __init ag71xx_module_init(void) -{ - int ret; - - ret = ag71xx_debugfs_root_init(); - if (ret) - goto err_out; - - ret = ag71xx_mdio_driver_init(); - if (ret) - goto err_debugfs_exit; - - ret = platform_driver_register(&ag71xx_driver); - if (ret) - goto err_mdio_exit; - - return 0; - -err_mdio_exit: - ag71xx_mdio_driver_exit(); -err_debugfs_exit: - ag71xx_debugfs_root_exit(); -err_out: - return ret; -} - -static void __exit ag71xx_module_exit(void) -{ - platform_driver_unregister(&ag71xx_driver); - ag71xx_mdio_driver_exit(); - ag71xx_debugfs_root_exit(); -} - -module_init(ag71xx_module_init); -module_exit(ag71xx_module_exit); - -MODULE_VERSION(AG71XX_DRV_VERSION); -MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>"); -MODULE_AUTHOR("Imre Kaloz <kaloz@openwrt.org>"); -MODULE_LICENSE("GPL v2"); -MODULE_ALIAS("platform:" AG71XX_DRV_NAME); diff --git a/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_mdio.c b/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_mdio.c deleted file mode 100644 index cf41aa8a3f..0000000000 --- a/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_mdio.c +++ /dev/null @@ -1,320 +0,0 @@ -/* - * Atheros AR71xx built-in ethernet mac driver - * - * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org> - * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org> - * - * Based on Atheros' AG7100 driver - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation. - */ - -#include "ag71xx.h" - -#define AG71XX_MDIO_RETRY 1000 -#define AG71XX_MDIO_DELAY 5 - -static inline void ag71xx_mdio_wr(struct ag71xx_mdio *am, unsigned reg, - u32 value) -{ - void __iomem *r; - - r = am->mdio_base + reg; - __raw_writel(value, r); - - /* flush write */ - (void) __raw_readl(r); -} - -static inline u32 ag71xx_mdio_rr(struct ag71xx_mdio *am, unsigned reg) -{ - return __raw_readl(am->mdio_base + reg); -} - -static void ag71xx_mdio_dump_regs(struct ag71xx_mdio *am) -{ - DBG("%s: mii_cfg=%08x, mii_cmd=%08x, mii_addr=%08x\n", - am->mii_bus->name, - ag71xx_mdio_rr(am, AG71XX_REG_MII_CFG), - ag71xx_mdio_rr(am, AG71XX_REG_MII_CMD), - ag71xx_mdio_rr(am, AG71XX_REG_MII_ADDR)); - DBG("%s: mii_ctrl=%08x, mii_status=%08x, mii_ind=%08x\n", - am->mii_bus->name, - ag71xx_mdio_rr(am, AG71XX_REG_MII_CTRL), - ag71xx_mdio_rr(am, AG71XX_REG_MII_STATUS), - ag71xx_mdio_rr(am, AG71XX_REG_MII_IND)); -} - -static int ag71xx_mdio_wait_busy(struct ag71xx_mdio *am) -{ - int i; - - for (i = 0; i < AG71XX_MDIO_RETRY; i++) { - u32 busy; - - udelay(AG71XX_MDIO_DELAY); - - busy = ag71xx_mdio_rr(am, AG71XX_REG_MII_IND); - if (!busy) - return 0; - - udelay(AG71XX_MDIO_DELAY); - } - - pr_err("%s: MDIO operation timed out\n", am->mii_bus->name); - - return -ETIMEDOUT; -} - -int ag71xx_mdio_mii_read(struct ag71xx_mdio *am, int addr, int reg) -{ - int err; - int ret; - - err = ag71xx_mdio_wait_busy(am); - if (err) - return 0xffff; - - ag71xx_mdio_wr(am, AG71XX_REG_MII_CMD, MII_CMD_WRITE); - ag71xx_mdio_wr(am, AG71XX_REG_MII_ADDR, - ((addr & 0xff) << MII_ADDR_SHIFT) | (reg & 0xff)); - ag71xx_mdio_wr(am, AG71XX_REG_MII_CMD, MII_CMD_READ); - - err = ag71xx_mdio_wait_busy(am); - if (err) - return 0xffff; - - ret = ag71xx_mdio_rr(am, AG71XX_REG_MII_STATUS) & 0xffff; - ag71xx_mdio_wr(am, AG71XX_REG_MII_CMD, MII_CMD_WRITE); - - DBG("mii_read: addr=%04x, reg=%04x, value=%04x\n", addr, reg, ret); - - return ret; -} - -void ag71xx_mdio_mii_write(struct ag71xx_mdio *am, int addr, int reg, u16 val) -{ - DBG("mii_write: addr=%04x, reg=%04x, value=%04x\n", addr, reg, val); - - ag71xx_mdio_wr(am, AG71XX_REG_MII_ADDR, - ((addr & 0xff) << MII_ADDR_SHIFT) | (reg & 0xff)); - ag71xx_mdio_wr(am, AG71XX_REG_MII_CTRL, val); - - ag71xx_mdio_wait_busy(am); -} - -static const u32 ar71xx_mdio_div_table[] = { - 4, 4, 6, 8, 10, 14, 20, 28, -}; - -static const u32 ar7240_mdio_div_table[] = { - 2, 2, 4, 6, 8, 12, 18, 26, 32, 40, 48, 56, 62, 70, 78, 96, -}; - -static const u32 ar933x_mdio_div_table[] = { - 4, 4, 6, 8, 10, 14, 20, 28, 34, 42, 50, 58, 66, 74, 82, 98, -}; - -static int ag71xx_mdio_get_divider(struct ag71xx_mdio *am, u32 *div) -{ - unsigned long ref_clock, mdio_clock; - const u32 *table; - int ndivs; - int i; - - ref_clock = am->pdata->ref_clock; - mdio_clock = am->pdata->mdio_clock; - - if (!ref_clock || !mdio_clock) - return -EINVAL; - - if (am->pdata->is_ar9330 || am->pdata->is_ar934x) { - table = ar933x_mdio_div_table; - ndivs = ARRAY_SIZE(ar933x_mdio_div_table); - } else if (am->pdata->is_ar7240) { - table = ar7240_mdio_div_table; - ndivs = ARRAY_SIZE(ar7240_mdio_div_table); - } else { - table = ar71xx_mdio_div_table; - ndivs = ARRAY_SIZE(ar71xx_mdio_div_table); - } - - for (i = 0; i < ndivs; i++) { - unsigned long t; - - t = ref_clock / table[i]; - if (t <= mdio_clock) { - *div = i; - return 0; - } - } - - dev_err(&am->mii_bus->dev, "no divider found for %lu/%lu\n", - ref_clock, mdio_clock); - return -ENOENT; -} - -static int ag71xx_mdio_reset(struct mii_bus *bus) -{ - struct ag71xx_mdio *am = bus->priv; - u32 t; - int err; - - err = ag71xx_mdio_get_divider(am, &t); - if (err) { - /* fallback */ - if (am->pdata->is_ar7240) - t = MII_CFG_CLK_DIV_6; - else if (am->pdata->builtin_switch && !am->pdata->is_ar934x) - t = MII_CFG_CLK_DIV_10; - else if (!am->pdata->builtin_switch && am->pdata->is_ar934x) - t = MII_CFG_CLK_DIV_58; - else - t = MII_CFG_CLK_DIV_28; - } - - ag71xx_mdio_wr(am, AG71XX_REG_MII_CFG, t | MII_CFG_RESET); - udelay(100); - - ag71xx_mdio_wr(am, AG71XX_REG_MII_CFG, t); - udelay(100); - - if (am->pdata->reset) - am->pdata->reset(bus); - - return 0; -} - -static int ag71xx_mdio_read(struct mii_bus *bus, int addr, int reg) -{ - struct ag71xx_mdio *am = bus->priv; - - if (am->pdata->builtin_switch) - return ar7240sw_phy_read(bus, addr, reg); - else - return ag71xx_mdio_mii_read(am, addr, reg); -} - -static int ag71xx_mdio_write(struct mii_bus *bus, int addr, int reg, u16 val) -{ - struct ag71xx_mdio *am = bus->priv; - - if (am->pdata->builtin_switch) - ar7240sw_phy_write(bus, addr, reg, val); - else - ag71xx_mdio_mii_write(am, addr, reg, val); - return 0; -} - -static int ag71xx_mdio_probe(struct platform_device *pdev) -{ - struct ag71xx_mdio_platform_data *pdata; - struct ag71xx_mdio *am; - struct resource *res; - int i; - int err; - - pdata = pdev->dev.platform_data; - if (!pdata) { - dev_err(&pdev->dev, "no platform data specified\n"); - return -EINVAL; - } - - am = kzalloc(sizeof(*am), GFP_KERNEL); - if (!am) { - err = -ENOMEM; - goto err_out; - } - - am->pdata = pdata; - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) { - dev_err(&pdev->dev, "no iomem resource found\n"); - err = -ENXIO; - goto err_free_mdio; - } - - am->mdio_base = ioremap_nocache(res->start, res->end - res->start + 1); - if (!am->mdio_base) { - dev_err(&pdev->dev, "unable to ioremap registers\n"); - err = -ENOMEM; - goto err_free_mdio; - } - - am->mii_bus = mdiobus_alloc(); - if (am->mii_bus == NULL) { - err = -ENOMEM; - goto err_iounmap; - } - - am->mii_bus->name = "ag71xx_mdio"; - am->mii_bus->read = ag71xx_mdio_read; - am->mii_bus->write = ag71xx_mdio_write; - am->mii_bus->reset = ag71xx_mdio_reset; -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,5,0) - am->mii_bus->irq = am->mii_irq; -#endif - am->mii_bus->priv = am; - am->mii_bus->parent = &pdev->dev; - snprintf(am->mii_bus->id, MII_BUS_ID_SIZE, "%s", dev_name(&pdev->dev)); - am->mii_bus->phy_mask = pdata->phy_mask; - - for (i = 0; i < PHY_MAX_ADDR; i++) - am->mii_bus->irq[i] = PHY_POLL; - - ag71xx_mdio_wr(am, AG71XX_REG_MAC_CFG1, 0); - - err = mdiobus_register(am->mii_bus); - if (err) - goto err_free_bus; - - ag71xx_mdio_dump_regs(am); - - platform_set_drvdata(pdev, am); - return 0; - -err_free_bus: - mdiobus_free(am->mii_bus); -err_iounmap: - iounmap(am->mdio_base); -err_free_mdio: - kfree(am); -err_out: - return err; -} - -static int ag71xx_mdio_remove(struct platform_device *pdev) -{ - struct ag71xx_mdio *am = platform_get_drvdata(pdev); - - if (am) { - mdiobus_unregister(am->mii_bus); - mdiobus_free(am->mii_bus); - iounmap(am->mdio_base); - kfree(am); - platform_set_drvdata(pdev, NULL); - } - - return 0; -} - -static struct platform_driver ag71xx_mdio_driver = { - .probe = ag71xx_mdio_probe, - .remove = ag71xx_mdio_remove, - .driver = { - .name = "ag71xx-mdio", - } -}; - -int __init ag71xx_mdio_driver_init(void) -{ - return platform_driver_register(&ag71xx_mdio_driver); -} - -void ag71xx_mdio_driver_exit(void) -{ - platform_driver_unregister(&ag71xx_mdio_driver); -} diff --git a/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_phy.c b/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_phy.c deleted file mode 100644 index 336143f753..0000000000 --- a/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_phy.c +++ /dev/null @@ -1,261 +0,0 @@ -/* - * Atheros AR71xx built-in ethernet mac driver - * - * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org> - * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org> - * - * Based on Atheros' AG7100 driver - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation. - */ - -#include "ag71xx.h" - -static void ag71xx_phy_link_adjust(struct net_device *dev) -{ - struct ag71xx *ag = netdev_priv(dev); - struct phy_device *phydev = ag->phy_dev; - unsigned long flags; - int status_change = 0; - - spin_lock_irqsave(&ag->lock, flags); - - if (phydev->link) { - if (ag->duplex != phydev->duplex - || ag->speed != phydev->speed) { - status_change = 1; - } - } - - if (phydev->link != ag->link) - status_change = 1; - - ag->link = phydev->link; - ag->duplex = phydev->duplex; - ag->speed = phydev->speed; - - if (status_change) - ag71xx_link_adjust(ag); - - spin_unlock_irqrestore(&ag->lock, flags); -} - -void ag71xx_phy_start(struct ag71xx *ag) -{ - struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag); - - if (ag->phy_dev) { - phy_start(ag->phy_dev); - } else if (pdata->mii_bus_dev && pdata->switch_data) { - ag71xx_ar7240_start(ag); - } else { - ag->link = 1; - ag71xx_link_adjust(ag); - } -} - -void ag71xx_phy_stop(struct ag71xx *ag) -{ - struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag); - unsigned long flags; - - if (ag->phy_dev) - phy_stop(ag->phy_dev); - else if (pdata->mii_bus_dev && pdata->switch_data) - ag71xx_ar7240_stop(ag); - - spin_lock_irqsave(&ag->lock, flags); - if (ag->link) { - ag->link = 0; - ag71xx_link_adjust(ag); - } - spin_unlock_irqrestore(&ag->lock, flags); -} - -static int ag71xx_phy_connect_fixed(struct ag71xx *ag) -{ - struct device *dev = &ag->pdev->dev; - struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag); - int ret = 0; - - /* use fixed settings */ - switch (pdata->speed) { - case SPEED_10: - case SPEED_100: - case SPEED_1000: - break; - default: - dev_err(dev, "invalid speed specified\n"); - ret = -EINVAL; - break; - } - - dev_dbg(dev, "using fixed link parameters\n"); - - ag->duplex = pdata->duplex; - ag->speed = pdata->speed; - - return ret; -} - -static int ag71xx_phy_connect_multi(struct ag71xx *ag) -{ - struct device *dev = &ag->pdev->dev; - struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag); - struct phy_device *phydev = NULL; - int phy_addr; - int ret = 0; - - for (phy_addr = 0; phy_addr < PHY_MAX_ADDR; phy_addr++) { - if (!(pdata->phy_mask & (1 << phy_addr))) - continue; - -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,5,0) - if (ag->mii_bus->phy_map[phy_addr] == NULL) - continue; - - DBG("%s: PHY found at %s, uid=%08x\n", - dev_name(dev), - dev_name(&ag->mii_bus->phy_map[phy_addr]->dev), - ag->mii_bus->phy_map[phy_addr]->phy_id); - - if (phydev == NULL) - phydev = ag->mii_bus->phy_map[phy_addr]; -#else - if (ag->mii_bus->mdio_map[phy_addr] == NULL) - continue; - - DBG("%s: PHY found at %s, uid=%08x\n", - dev_name(dev), - dev_name(&ag->mii_bus->mdio_map[phy_addr]->dev), - (phydev) ? phydev->phy_id : 0); - - if (phydev == NULL) - phydev = mdiobus_get_phy(ag->mii_bus, phy_addr); -#endif - } - - if (!phydev) { - dev_err(dev, "no PHY found with phy_mask=%08x\n", - pdata->phy_mask); - return -ENODEV; - } - -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,5,0) - ag->phy_dev = phy_connect(ag->dev, dev_name(&phydev->dev), -#else - ag->phy_dev = phy_connect(ag->dev, phydev_name(phydev), -#endif - &ag71xx_phy_link_adjust, - pdata->phy_if_mode); - - if (IS_ERR(ag->phy_dev)) { - dev_err(dev, "could not connect to PHY at %s\n", -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,5,0) - dev_name(&phydev->dev)); -#else - phydev_name(phydev)); -#endif - return PTR_ERR(ag->phy_dev); - } - - /* mask with MAC supported features */ - if (pdata->has_gbit) - phydev->supported &= PHY_GBIT_FEATURES; - else - phydev->supported &= PHY_BASIC_FEATURES; - - phydev->advertising = phydev->supported; - - dev_info(dev, "connected to PHY at %s [uid=%08x, driver=%s]\n", -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,5,0) - dev_name(&phydev->dev), -#else - phydev_name(phydev), -#endif - phydev->phy_id, phydev->drv->name); - - ag->link = 0; - ag->speed = 0; - ag->duplex = -1; - - return ret; -} - -static int dev_is_class(struct device *dev, void *class) -{ - if (dev->class != NULL && !strcmp(dev->class->name, class)) - return 1; - - return 0; -} - -static struct device *dev_find_class(struct device *parent, char *class) -{ - if (dev_is_class(parent, class)) { - get_device(parent); - return parent; - } - - return device_find_child(parent, class, dev_is_class); -} - -static struct mii_bus *dev_to_mii_bus(struct device *dev) -{ - struct device *d; - - d = dev_find_class(dev, "mdio_bus"); - if (d != NULL) { - struct mii_bus *bus; - - bus = to_mii_bus(d); - put_device(d); - - return bus; - } - - return NULL; -} - -int ag71xx_phy_connect(struct ag71xx *ag) -{ - struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag); - - if (pdata->mii_bus_dev == NULL || - pdata->mii_bus_dev->bus == NULL ) - return ag71xx_phy_connect_fixed(ag); - - ag->mii_bus = dev_to_mii_bus(pdata->mii_bus_dev); - if (ag->mii_bus == NULL) { - dev_err(&ag->pdev->dev, "unable to find MII bus on device '%s'\n", - dev_name(pdata->mii_bus_dev)); - return -ENODEV; - } - - /* Reset the mdio bus explicitly */ - if (ag->mii_bus->reset) { - mutex_lock(&ag->mii_bus->mdio_lock); - ag->mii_bus->reset(ag->mii_bus); - mutex_unlock(&ag->mii_bus->mdio_lock); - } - - if (pdata->switch_data) - return ag71xx_ar7240_init(ag); - - if (pdata->phy_mask) - return ag71xx_phy_connect_multi(ag); - - return ag71xx_phy_connect_fixed(ag); -} - -void ag71xx_phy_disconnect(struct ag71xx *ag) -{ - struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag); - - if (pdata->switch_data) - ag71xx_ar7240_cleanup(ag); - else if (ag->phy_dev) - phy_disconnect(ag->phy_dev); -} diff --git a/target/linux/ar71xx/files/drivers/spi/spi-rb4xx-cpld.c b/target/linux/ar71xx/files/drivers/spi/spi-rb4xx-cpld.c deleted file mode 100644 index 18af83b67c..0000000000 --- a/target/linux/ar71xx/files/drivers/spi/spi-rb4xx-cpld.c +++ /dev/null @@ -1,347 +0,0 @@ -/* - * SPI driver for the CPLD chip on the Mikrotik RB4xx boards - * - * Copyright (C) 2010 Gabor Juhos <juhosg@openwrt.org> - * - * This file was based on the patches for Linux 2.6.27.39 published by - * MikroTik for their RouterBoard 4xx series devices. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation. - */ - -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/init.h> -#include <linux/module.h> -#include <linux/device.h> -#include <linux/bitops.h> -#include <linux/spi/spi.h> -#include <linux/gpio.h> -#include <linux/slab.h> -#include <linux/version.h> - -#include <asm/mach-ath79/rb4xx_cpld.h> - -#define DRV_NAME "spi-rb4xx-cpld" -#define DRV_DESC "RB4xx CPLD driver" -#define DRV_VERSION "0.1.0" - -#define CPLD_CMD_WRITE_NAND 0x08 /* send cmd, n x send data, send indle */ -#define CPLD_CMD_WRITE_CFG 0x09 /* send cmd, n x send cfg */ -#define CPLD_CMD_READ_NAND 0x0a /* send cmd, send idle, n x read data */ -#define CPLD_CMD_READ_FAST 0x0b /* send cmd, 4 x idle, n x read data */ -#define CPLD_CMD_LED5_ON 0x0c /* send cmd */ -#define CPLD_CMD_LED5_OFF 0x0d /* send cmd */ - -struct rb4xx_cpld { - struct spi_device *spi; - struct mutex lock; - struct gpio_chip chip; - unsigned int config; -}; - -static struct rb4xx_cpld *rb4xx_cpld; - -static inline struct rb4xx_cpld *gpio_to_cpld(struct gpio_chip *chip) -{ - return container_of(chip, struct rb4xx_cpld, chip); -} - -static int rb4xx_cpld_write_cmd(struct rb4xx_cpld *cpld, unsigned char cmd) -{ - struct spi_transfer t[1]; - struct spi_message m; - unsigned char tx_buf[1]; - int err; - - spi_message_init(&m); - memset(&t, 0, sizeof(t)); - - t[0].tx_buf = tx_buf; - t[0].len = sizeof(tx_buf); - spi_message_add_tail(&t[0], &m); - - tx_buf[0] = cmd; - - err = spi_sync(cpld->spi, &m); - return err; -} - -static int rb4xx_cpld_write_cfg(struct rb4xx_cpld *cpld, unsigned char config) -{ - struct spi_transfer t[1]; - struct spi_message m; - unsigned char cmd[2]; - int err; - - spi_message_init(&m); - memset(&t, 0, sizeof(t)); - - t[0].tx_buf = cmd; - t[0].len = sizeof(cmd); - spi_message_add_tail(&t[0], &m); - - cmd[0] = CPLD_CMD_WRITE_CFG; - cmd[1] = config; - - err = spi_sync(cpld->spi, &m); - return err; -} - -static int __rb4xx_cpld_change_cfg(struct rb4xx_cpld *cpld, unsigned mask, - unsigned value) -{ - unsigned int config; - int err; - - config = cpld->config & ~mask; - config |= value; - - if ((cpld->config ^ config) & 0xff) { - err = rb4xx_cpld_write_cfg(cpld, config); - if (err) - return err; - } - - if ((cpld->config ^ config) & CPLD_CFG_nLED5) { - err = rb4xx_cpld_write_cmd(cpld, (value) ? CPLD_CMD_LED5_ON : - CPLD_CMD_LED5_OFF); - if (err) - return err; - } - - cpld->config = config; - return 0; -} - -int rb4xx_cpld_change_cfg(unsigned mask, unsigned value) -{ - int ret; - - if (rb4xx_cpld == NULL) - return -ENODEV; - - mutex_lock(&rb4xx_cpld->lock); - ret = __rb4xx_cpld_change_cfg(rb4xx_cpld, mask, value); - mutex_unlock(&rb4xx_cpld->lock); - - return ret; -} -EXPORT_SYMBOL_GPL(rb4xx_cpld_change_cfg); - -int rb4xx_cpld_read(unsigned char *rx_buf, unsigned count) -{ - static const unsigned char cmd[2] = { CPLD_CMD_READ_NAND, 0 }; - struct spi_transfer t[2] = { - { - .tx_buf = &cmd, - .len = 2, - }, { - .rx_buf = rx_buf, - .len = count, - }, - }; - struct spi_message m; - - if (rb4xx_cpld == NULL) - return -ENODEV; - - spi_message_init(&m); - spi_message_add_tail(&t[0], &m); - spi_message_add_tail(&t[1], &m); - return spi_sync(rb4xx_cpld->spi, &m); -} -EXPORT_SYMBOL_GPL(rb4xx_cpld_read); - -int rb4xx_cpld_write(const unsigned char *buf, unsigned count) -{ - static const unsigned char cmd = CPLD_CMD_WRITE_NAND; - struct spi_transfer t[3] = { - { - .tx_buf = &cmd, - .len = 1, - }, { - .tx_buf = buf, - .len = count, - .tx_nbits = SPI_NBITS_DUAL, - }, { - .len = 1, - .tx_nbits = SPI_NBITS_DUAL, - }, - }; - struct spi_message m; - - if (rb4xx_cpld == NULL) - return -ENODEV; - - spi_message_init(&m); - spi_message_add_tail(&t[0], &m); - spi_message_add_tail(&t[1], &m); - spi_message_add_tail(&t[2], &m); - return spi_sync(rb4xx_cpld->spi, &m); -} -EXPORT_SYMBOL_GPL(rb4xx_cpld_write); - -static int rb4xx_cpld_gpio_get(struct gpio_chip *chip, unsigned offset) -{ - struct rb4xx_cpld *cpld = gpio_to_cpld(chip); - int ret; - - mutex_lock(&cpld->lock); - ret = (cpld->config >> offset) & 1; - mutex_unlock(&cpld->lock); - - return ret; -} - -static void rb4xx_cpld_gpio_set(struct gpio_chip *chip, unsigned offset, - int value) -{ - struct rb4xx_cpld *cpld = gpio_to_cpld(chip); - - mutex_lock(&cpld->lock); - __rb4xx_cpld_change_cfg(cpld, (1 << offset), !!value << offset); - mutex_unlock(&cpld->lock); -} - -static int rb4xx_cpld_gpio_direction_input(struct gpio_chip *chip, - unsigned offset) -{ - return -EOPNOTSUPP; -} - -static int rb4xx_cpld_gpio_direction_output(struct gpio_chip *chip, - unsigned offset, - int value) -{ - struct rb4xx_cpld *cpld = gpio_to_cpld(chip); - int ret; - - mutex_lock(&cpld->lock); - ret = __rb4xx_cpld_change_cfg(cpld, (1 << offset), !!value << offset); - mutex_unlock(&cpld->lock); - - return ret; -} - -static int rb4xx_cpld_gpio_init(struct rb4xx_cpld *cpld, unsigned int base) -{ - int err; - - /* init config */ - cpld->config = CPLD_CFG_nLED1 | CPLD_CFG_nLED2 | CPLD_CFG_nLED3 | - CPLD_CFG_nLED4 | CPLD_CFG_nCE; - rb4xx_cpld_write_cfg(cpld, cpld->config); - - /* setup GPIO chip */ - cpld->chip.label = DRV_NAME; - - cpld->chip.get = rb4xx_cpld_gpio_get; - cpld->chip.set = rb4xx_cpld_gpio_set; - cpld->chip.direction_input = rb4xx_cpld_gpio_direction_input; - cpld->chip.direction_output = rb4xx_cpld_gpio_direction_output; - - cpld->chip.base = base; - cpld->chip.ngpio = CPLD_NUM_GPIOS; - cpld->chip.can_sleep = 1; -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,5,0) - cpld->chip.dev = &cpld->spi->dev; -#else - cpld->chip.parent = &cpld->spi->dev; -#endif - cpld->chip.owner = THIS_MODULE; - - err = gpiochip_add(&cpld->chip); - if (err) - dev_err(&cpld->spi->dev, "adding GPIO chip failed, err=%d\n", - err); - - return err; -} - -static int rb4xx_cpld_probe(struct spi_device *spi) -{ - struct rb4xx_cpld *cpld; - struct rb4xx_cpld_platform_data *pdata; - int err; - - pdata = spi->dev.platform_data; - if (!pdata) { - dev_dbg(&spi->dev, "no platform data\n"); - return -EINVAL; - } - - cpld = kzalloc(sizeof(*cpld), GFP_KERNEL); - if (!cpld) { - dev_err(&spi->dev, "no memory for private data\n"); - return -ENOMEM; - } - - mutex_init(&cpld->lock); - cpld->spi = spi_dev_get(spi); - dev_set_drvdata(&spi->dev, cpld); - - spi->mode = SPI_MODE_0 | SPI_TX_DUAL; - spi->bits_per_word = 8; - err = spi_setup(spi); - if (err) { - dev_err(&spi->dev, "spi_setup failed, err=%d\n", err); - goto err_drvdata; - } - - err = rb4xx_cpld_gpio_init(cpld, pdata->gpio_base); - if (err) - goto err_drvdata; - - rb4xx_cpld = cpld; - - return 0; - -err_drvdata: - dev_set_drvdata(&spi->dev, NULL); - kfree(cpld); - - return err; -} - -static int rb4xx_cpld_remove(struct spi_device *spi) -{ - struct rb4xx_cpld *cpld; - - rb4xx_cpld = NULL; - cpld = dev_get_drvdata(&spi->dev); - dev_set_drvdata(&spi->dev, NULL); - kfree(cpld); - - return 0; -} - -static struct spi_driver rb4xx_cpld_driver = { - .driver = { - .name = DRV_NAME, - .bus = &spi_bus_type, - .owner = THIS_MODULE, - }, - .probe = rb4xx_cpld_probe, - .remove = rb4xx_cpld_remove, -}; - -static int __init rb4xx_cpld_init(void) -{ - return spi_register_driver(&rb4xx_cpld_driver); -} -module_init(rb4xx_cpld_init); - -static void __exit rb4xx_cpld_exit(void) -{ - spi_unregister_driver(&rb4xx_cpld_driver); -} -module_exit(rb4xx_cpld_exit); - -MODULE_DESCRIPTION(DRV_DESC); -MODULE_VERSION(DRV_VERSION); -MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>"); -MODULE_LICENSE("GPL v2"); diff --git a/target/linux/ar71xx/files/drivers/spi/spi-rb4xx.c b/target/linux/ar71xx/files/drivers/spi/spi-rb4xx.c deleted file mode 100644 index 2d95e80495..0000000000 --- a/target/linux/ar71xx/files/drivers/spi/spi-rb4xx.c +++ /dev/null @@ -1,430 +0,0 @@ -/* - * SPI controller driver for the Mikrotik RB4xx boards - * - * Copyright (C) 2010 Gabor Juhos <juhosg@openwrt.org> - * - * This file was based on the patches for Linux 2.6.27.39 published by - * MikroTik for their RouterBoard 4xx series devices. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - */ - -#include <linux/clk.h> -#include <linux/err.h> -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/init.h> -#include <linux/delay.h> -#include <linux/spinlock.h> -#include <linux/workqueue.h> -#include <linux/platform_device.h> -#include <linux/spi/spi.h> - -#include <asm/mach-ath79/ar71xx_regs.h> -#include <asm/mach-ath79/ath79.h> - -#define DRV_NAME "rb4xx-spi" -#define DRV_DESC "Mikrotik RB4xx SPI controller driver" -#define DRV_VERSION "0.1.0" - -#define SPI_CTRL_FASTEST 0x40 -#define SPI_FLASH_HZ 33333334 -#define SPI_CPLD_HZ 33333334 - -#define CPLD_CMD_READ_FAST 0x0b - -#undef RB4XX_SPI_DEBUG - -struct rb4xx_spi { - void __iomem *base; - struct spi_master *master; - - unsigned spi_ctrl_flash; - unsigned spi_ctrl_fread; - - struct clk *ahb_clk; - unsigned long ahb_freq; - - spinlock_t lock; - struct list_head queue; - int busy:1; - int cs_wait; -}; - -static unsigned spi_clk_low = AR71XX_SPI_IOC_CS1; - -#ifdef RB4XX_SPI_DEBUG -static inline void do_spi_delay(void) -{ - ndelay(20000); -} -#else -static inline void do_spi_delay(void) { } -#endif - -static inline void do_spi_init(struct spi_device *spi) -{ - unsigned cs = AR71XX_SPI_IOC_CS0 | AR71XX_SPI_IOC_CS1; - - if (!(spi->mode & SPI_CS_HIGH)) - cs ^= (spi->chip_select == 2) ? AR71XX_SPI_IOC_CS1 : - AR71XX_SPI_IOC_CS0; - - spi_clk_low = cs; -} - -static inline void do_spi_finish(void __iomem *base) -{ - do_spi_delay(); - __raw_writel(AR71XX_SPI_IOC_CS0 | AR71XX_SPI_IOC_CS1, - base + AR71XX_SPI_REG_IOC); -} - -static inline void do_spi_clk(void __iomem *base, int bit) -{ - unsigned bval = spi_clk_low | ((bit & 1) ? AR71XX_SPI_IOC_DO : 0); - - do_spi_delay(); - __raw_writel(bval, base + AR71XX_SPI_REG_IOC); - do_spi_delay(); - __raw_writel(bval | AR71XX_SPI_IOC_CLK, base + AR71XX_SPI_REG_IOC); -} - -static void do_spi_byte(void __iomem *base, unsigned char byte) -{ - do_spi_clk(base, byte >> 7); - do_spi_clk(base, byte >> 6); - do_spi_clk(base, byte >> 5); - do_spi_clk(base, byte >> 4); - do_spi_clk(base, byte >> 3); - do_spi_clk(base, byte >> 2); - do_spi_clk(base, byte >> 1); - do_spi_clk(base, byte); - - pr_debug("spi_byte sent 0x%02x got 0x%02x\n", - (unsigned)byte, - (unsigned char)__raw_readl(base + AR71XX_SPI_REG_RDS)); -} - -static inline void do_spi_clk_fast(void __iomem *base, unsigned bit1, - unsigned bit2) -{ - unsigned bval = (spi_clk_low | - ((bit1 & 1) ? AR71XX_SPI_IOC_DO : 0) | - ((bit2 & 1) ? AR71XX_SPI_IOC_CS2 : 0)); - do_spi_delay(); - __raw_writel(bval, base + AR71XX_SPI_REG_IOC); - do_spi_delay(); - __raw_writel(bval | AR71XX_SPI_IOC_CLK, base + AR71XX_SPI_REG_IOC); -} - -static void do_spi_byte_fast(void __iomem *base, unsigned char byte) -{ - do_spi_clk_fast(base, byte >> 7, byte >> 6); - do_spi_clk_fast(base, byte >> 5, byte >> 4); - do_spi_clk_fast(base, byte >> 3, byte >> 2); - do_spi_clk_fast(base, byte >> 1, byte >> 0); - - pr_debug("spi_byte_fast sent 0x%02x got 0x%02x\n", - (unsigned)byte, - (unsigned char) __raw_readl(base + AR71XX_SPI_REG_RDS)); -} - -static int rb4xx_spi_txrx(void __iomem *base, struct spi_transfer *t) -{ - const unsigned char *tx_ptr = t->tx_buf; - unsigned char *rx_ptr = t->rx_buf; - unsigned i; - - pr_debug("spi_txrx len %u tx %u rx %u\n", - t->len, - (t->tx_buf ? 1 : 0), - (t->rx_buf ? 1 : 0)); - - for (i = 0; i < t->len; ++i) { - unsigned char sdata = tx_ptr ? tx_ptr[i] : 0; - - if (t->tx_nbits == SPI_NBITS_DUAL) - do_spi_byte_fast(base, sdata); - else - do_spi_byte(base, sdata); - - if (rx_ptr) - rx_ptr[i] = __raw_readl(base + AR71XX_SPI_REG_RDS) & 0xff; - } - - return i; -} - -static int rb4xx_spi_msg(struct rb4xx_spi *rbspi, struct spi_message *m) -{ - struct spi_transfer *t = NULL; - void __iomem *base = rbspi->base; - - m->status = 0; - if (list_empty(&m->transfers)) - return -1; - - __raw_writel(AR71XX_SPI_FS_GPIO, base + AR71XX_SPI_REG_FS); - __raw_writel(SPI_CTRL_FASTEST, base + AR71XX_SPI_REG_CTRL); - do_spi_init(m->spi); - - list_for_each_entry(t, &m->transfers, transfer_list) { - int len; - - len = rb4xx_spi_txrx(base, t); - if (len != t->len) { - m->status = -EMSGSIZE; - break; - } - m->actual_length += len; - - if (t->cs_change) { - if (list_is_last(&t->transfer_list, &m->transfers)) { - /* wait for continuation */ - return m->spi->chip_select; - } - do_spi_finish(base); - ndelay(100); - } - } - - do_spi_finish(base); - __raw_writel(rbspi->spi_ctrl_flash, base + AR71XX_SPI_REG_CTRL); - __raw_writel(0, base + AR71XX_SPI_REG_FS); - return -1; -} - -static void rb4xx_spi_process_queue_locked(struct rb4xx_spi *rbspi, - unsigned long *flags) -{ - int cs = rbspi->cs_wait; - - rbspi->busy = 1; - while (!list_empty(&rbspi->queue)) { - struct spi_message *m; - - list_for_each_entry(m, &rbspi->queue, queue) - if (cs < 0 || cs == m->spi->chip_select) - break; - - if (&m->queue == &rbspi->queue) - break; - - list_del_init(&m->queue); - spin_unlock_irqrestore(&rbspi->lock, *flags); - - cs = rb4xx_spi_msg(rbspi, m); - m->complete(m->context); - - spin_lock_irqsave(&rbspi->lock, *flags); - } - - rbspi->cs_wait = cs; - rbspi->busy = 0; - - if (cs >= 0) { - /* TODO: add timer to unlock cs after 1s inactivity */ - } -} - -static int rb4xx_spi_transfer(struct spi_device *spi, - struct spi_message *m) -{ - struct rb4xx_spi *rbspi = spi_master_get_devdata(spi->master); - unsigned long flags; - - m->actual_length = 0; - m->status = -EINPROGRESS; - - spin_lock_irqsave(&rbspi->lock, flags); - list_add_tail(&m->queue, &rbspi->queue); - if (rbspi->busy || - (rbspi->cs_wait >= 0 && rbspi->cs_wait != m->spi->chip_select)) { - /* job will be done later */ - spin_unlock_irqrestore(&rbspi->lock, flags); - return 0; - } - - /* process job in current context */ - rb4xx_spi_process_queue_locked(rbspi, &flags); - spin_unlock_irqrestore(&rbspi->lock, flags); - - return 0; -} - -static int rb4xx_spi_setup(struct spi_device *spi) -{ - struct rb4xx_spi *rbspi = spi_master_get_devdata(spi->master); - unsigned long flags; - - if (spi->mode & ~(SPI_CS_HIGH | SPI_TX_DUAL)) { - dev_err(&spi->dev, "mode %x not supported\n", - (unsigned) spi->mode); - return -EINVAL; - } - - if (spi->bits_per_word != 8 && spi->bits_per_word != 0) { - dev_err(&spi->dev, "bits_per_word %u not supported\n", - (unsigned) spi->bits_per_word); - return -EINVAL; - } - - spin_lock_irqsave(&rbspi->lock, flags); - if (rbspi->cs_wait == spi->chip_select && !rbspi->busy) { - rbspi->cs_wait = -1; - rb4xx_spi_process_queue_locked(rbspi, &flags); - } - spin_unlock_irqrestore(&rbspi->lock, flags); - - return 0; -} - -static unsigned get_spi_ctrl(struct rb4xx_spi *rbspi, unsigned hz_max, - const char *name) -{ - unsigned div; - - div = (rbspi->ahb_freq - 1) / (2 * hz_max); - - /* - * CPU has a bug at (div == 0) - first bit read is random - */ - if (div == 0) - ++div; - - if (name) { - unsigned ahb_khz = (rbspi->ahb_freq + 500) / 1000; - unsigned div_real = 2 * (div + 1); - pr_debug("rb4xx: %s SPI clock %u kHz (AHB %u kHz / %u)\n", - name, - ahb_khz / div_real, - ahb_khz, div_real); - } - - return SPI_CTRL_FASTEST + div; -} - -static int rb4xx_spi_probe(struct platform_device *pdev) -{ - struct spi_master *master; - struct rb4xx_spi *rbspi; - struct resource *r; - int err = 0; - - master = spi_alloc_master(&pdev->dev, sizeof(*rbspi)); - if (master == NULL) { - dev_err(&pdev->dev, "no memory for spi_master\n"); - err = -ENOMEM; - goto err_out; - } - - master->bus_num = 0; - master->num_chipselect = 3; - master->mode_bits = SPI_TX_DUAL; - master->setup = rb4xx_spi_setup; - master->transfer = rb4xx_spi_transfer; - - rbspi = spi_master_get_devdata(master); - - rbspi->ahb_clk = clk_get(&pdev->dev, "ahb"); - if (IS_ERR(rbspi->ahb_clk)) { - err = PTR_ERR(rbspi->ahb_clk); - goto err_put_master; - } - - err = clk_prepare_enable(rbspi->ahb_clk); - if (err) - goto err_clk_put; - - rbspi->ahb_freq = clk_get_rate(rbspi->ahb_clk); - if (!rbspi->ahb_freq) { - err = -EINVAL; - goto err_clk_disable; - } - - platform_set_drvdata(pdev, rbspi); - - r = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (r == NULL) { - err = -ENOENT; - goto err_clk_disable; - } - - rbspi->base = ioremap(r->start, r->end - r->start + 1); - if (!rbspi->base) { - err = -ENXIO; - goto err_clk_disable; - } - - rbspi->master = master; - rbspi->spi_ctrl_flash = get_spi_ctrl(rbspi, SPI_FLASH_HZ, "FLASH"); - rbspi->spi_ctrl_fread = get_spi_ctrl(rbspi, SPI_CPLD_HZ, "CPLD"); - rbspi->cs_wait = -1; - - spin_lock_init(&rbspi->lock); - INIT_LIST_HEAD(&rbspi->queue); - - err = spi_register_master(master); - if (err) { - dev_err(&pdev->dev, "failed to register SPI master\n"); - goto err_iounmap; - } - - return 0; - -err_iounmap: - iounmap(rbspi->base); -err_clk_disable: - clk_disable_unprepare(rbspi->ahb_clk); -err_clk_put: - clk_put(rbspi->ahb_clk); -err_put_master: - platform_set_drvdata(pdev, NULL); - spi_master_put(master); -err_out: - return err; -} - -static int rb4xx_spi_remove(struct platform_device *pdev) -{ - struct rb4xx_spi *rbspi = platform_get_drvdata(pdev); - - iounmap(rbspi->base); - clk_disable_unprepare(rbspi->ahb_clk); - clk_put(rbspi->ahb_clk); - platform_set_drvdata(pdev, NULL); - spi_master_put(rbspi->master); - - return 0; -} - -static struct platform_driver rb4xx_spi_drv = { - .probe = rb4xx_spi_probe, - .remove = rb4xx_spi_remove, - .driver = { - .name = DRV_NAME, - .owner = THIS_MODULE, - }, -}; - -static int __init rb4xx_spi_init(void) -{ - return platform_driver_register(&rb4xx_spi_drv); -} -subsys_initcall(rb4xx_spi_init); - -static void __exit rb4xx_spi_exit(void) -{ - platform_driver_unregister(&rb4xx_spi_drv); -} - -module_exit(rb4xx_spi_exit); - -MODULE_DESCRIPTION(DRV_DESC); -MODULE_VERSION(DRV_VERSION); -MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>"); -MODULE_LICENSE("GPL v2"); diff --git a/target/linux/ar71xx/files/drivers/spi/spi-vsc7385.c b/target/linux/ar71xx/files/drivers/spi/spi-vsc7385.c deleted file mode 100644 index b712e71875..0000000000 --- a/target/linux/ar71xx/files/drivers/spi/spi-vsc7385.c +++ /dev/null @@ -1,621 +0,0 @@ -/* - * SPI driver for the Vitesse VSC7385 ethernet switch - * - * Copyright (C) 2009 Gabor Juhos <juhosg@openwrt.org> - * - * Parts of this file are based on Atheros' 2.6.15 BSP - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation. - */ - -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/module.h> -#include <linux/delay.h> -#include <linux/device.h> -#include <linux/bitops.h> -#include <linux/firmware.h> -#include <linux/spi/spi.h> -#include <linux/spi/vsc7385.h> - -#define DRV_NAME "spi-vsc7385" -#define DRV_DESC "Vitesse VSC7385 Gbit ethernet switch driver" -#define DRV_VERSION "0.1.0" - -#define VSC73XX_BLOCK_MAC 0x1 -#define VSC73XX_BLOCK_2 0x2 -#define VSC73XX_BLOCK_MII 0x3 -#define VSC73XX_BLOCK_4 0x4 -#define VSC73XX_BLOCK_5 0x5 -#define VSC73XX_BLOCK_SYSTEM 0x7 - -#define VSC73XX_SUBBLOCK_PORT_0 0 -#define VSC73XX_SUBBLOCK_PORT_1 1 -#define VSC73XX_SUBBLOCK_PORT_2 2 -#define VSC73XX_SUBBLOCK_PORT_3 3 -#define VSC73XX_SUBBLOCK_PORT_4 4 -#define VSC73XX_SUBBLOCK_PORT_MAC 6 - -/* MAC Block registers */ -#define VSC73XX_MAC_CFG 0x0 -#define VSC73XX_ADVPORTM 0x19 -#define VSC73XX_RXOCT 0x50 -#define VSC73XX_TXOCT 0x51 -#define VSC73XX_C_RX0 0x52 -#define VSC73XX_C_RX1 0x53 -#define VSC73XX_C_RX2 0x54 -#define VSC73XX_C_TX0 0x55 -#define VSC73XX_C_TX1 0x56 -#define VSC73XX_C_TX2 0x57 -#define VSC73XX_C_CFG 0x58 - -/* MAC_CFG register bits */ -#define VSC73XX_MAC_CFG_WEXC_DIS (1 << 31) -#define VSC73XX_MAC_CFG_PORT_RST (1 << 29) -#define VSC73XX_MAC_CFG_TX_EN (1 << 28) -#define VSC73XX_MAC_CFG_SEED_LOAD (1 << 27) -#define VSC73XX_MAC_CFG_FDX (1 << 18) -#define VSC73XX_MAC_CFG_GIGE (1 << 17) -#define VSC73XX_MAC_CFG_RX_EN (1 << 16) -#define VSC73XX_MAC_CFG_VLAN_DBLAWR (1 << 15) -#define VSC73XX_MAC_CFG_VLAN_AWR (1 << 14) -#define VSC73XX_MAC_CFG_100_BASE_T (1 << 13) -#define VSC73XX_MAC_CFG_TX_IPG(x) (((x) & 0x1f) << 6) -#define VSC73XX_MAC_CFG_MAC_RX_RST (1 << 5) -#define VSC73XX_MAC_CFG_MAC_TX_RST (1 << 4) -#define VSC73XX_MAC_CFG_BIT2 (1 << 2) -#define VSC73XX_MAC_CFG_CLK_SEL(x) ((x) & 0x3) - -/* ADVPORTM register bits */ -#define VSC73XX_ADVPORTM_IFG_PPM (1 << 7) -#define VSC73XX_ADVPORTM_EXC_COL_CONT (1 << 6) -#define VSC73XX_ADVPORTM_EXT_PORT (1 << 5) -#define VSC73XX_ADVPORTM_INV_GTX (1 << 4) -#define VSC73XX_ADVPORTM_ENA_GTX (1 << 3) -#define VSC73XX_ADVPORTM_DDR_MODE (1 << 2) -#define VSC73XX_ADVPORTM_IO_LOOPBACK (1 << 1) -#define VSC73XX_ADVPORTM_HOST_LOOPBACK (1 << 0) - -/* MII Block registers */ -#define VSC73XX_MII_STAT 0x0 -#define VSC73XX_MII_CMD 0x1 -#define VSC73XX_MII_DATA 0x2 - -/* System Block registers */ -#define VSC73XX_ICPU_SIPAD 0x01 -#define VSC73XX_ICPU_CLOCK_DELAY 0x05 -#define VSC73XX_ICPU_CTRL 0x10 -#define VSC73XX_ICPU_ADDR 0x11 -#define VSC73XX_ICPU_SRAM 0x12 -#define VSC73XX_ICPU_MBOX_VAL 0x15 -#define VSC73XX_ICPU_MBOX_SET 0x16 -#define VSC73XX_ICPU_MBOX_CLR 0x17 -#define VSC73XX_ICPU_CHIPID 0x18 -#define VSC73XX_ICPU_GPIO 0x34 - -#define VSC73XX_ICPU_CTRL_CLK_DIV (1 << 8) -#define VSC73XX_ICPU_CTRL_SRST_HOLD (1 << 7) -#define VSC73XX_ICPU_CTRL_BOOT_EN (1 << 3) -#define VSC73XX_ICPU_CTRL_EXT_ACC_EN (1 << 2) -#define VSC73XX_ICPU_CTRL_CLK_EN (1 << 1) -#define VSC73XX_ICPU_CTRL_SRST (1 << 0) - -#define VSC73XX_ICPU_CHIPID_ID_SHIFT 12 -#define VSC73XX_ICPU_CHIPID_ID_MASK 0xffff -#define VSC73XX_ICPU_CHIPID_REV_SHIFT 28 -#define VSC73XX_ICPU_CHIPID_REV_MASK 0xf -#define VSC73XX_ICPU_CHIPID_ID_7385 0x7385 -#define VSC73XX_ICPU_CHIPID_ID_7395 0x7395 - -#define VSC73XX_CMD_MODE_READ 0 -#define VSC73XX_CMD_MODE_WRITE 1 -#define VSC73XX_CMD_MODE_SHIFT 4 -#define VSC73XX_CMD_BLOCK_SHIFT 5 -#define VSC73XX_CMD_BLOCK_MASK 0x7 -#define VSC73XX_CMD_SUBBLOCK_MASK 0xf - -#define VSC7385_CLOCK_DELAY ((3 << 4) | 3) -#define VSC7385_CLOCK_DELAY_MASK ((3 << 4) | 3) - -#define VSC73XX_ICPU_CTRL_STOP (VSC73XX_ICPU_CTRL_SRST_HOLD | \ - VSC73XX_ICPU_CTRL_BOOT_EN | \ - VSC73XX_ICPU_CTRL_EXT_ACC_EN) - -#define VSC73XX_ICPU_CTRL_START (VSC73XX_ICPU_CTRL_CLK_DIV | \ - VSC73XX_ICPU_CTRL_BOOT_EN | \ - VSC73XX_ICPU_CTRL_CLK_EN | \ - VSC73XX_ICPU_CTRL_SRST) - -#define VSC7385_ADVPORTM_MASK (VSC73XX_ADVPORTM_IFG_PPM | \ - VSC73XX_ADVPORTM_EXC_COL_CONT | \ - VSC73XX_ADVPORTM_EXT_PORT | \ - VSC73XX_ADVPORTM_INV_GTX | \ - VSC73XX_ADVPORTM_ENA_GTX | \ - VSC73XX_ADVPORTM_DDR_MODE | \ - VSC73XX_ADVPORTM_IO_LOOPBACK | \ - VSC73XX_ADVPORTM_HOST_LOOPBACK) - -#define VSC7385_ADVPORTM_INIT (VSC73XX_ADVPORTM_EXT_PORT | \ - VSC73XX_ADVPORTM_ENA_GTX | \ - VSC73XX_ADVPORTM_DDR_MODE) - -#define VSC7385_MAC_CFG_RESET (VSC73XX_MAC_CFG_PORT_RST | \ - VSC73XX_MAC_CFG_MAC_RX_RST | \ - VSC73XX_MAC_CFG_MAC_TX_RST) - -#define VSC73XX_MAC_CFG_INIT (VSC73XX_MAC_CFG_TX_EN | \ - VSC73XX_MAC_CFG_FDX | \ - VSC73XX_MAC_CFG_GIGE | \ - VSC73XX_MAC_CFG_RX_EN) - -#define VSC73XX_RESET_DELAY 100 - -struct vsc7385 { - struct spi_device *spi; - struct mutex lock; - struct vsc7385_platform_data *pdata; -}; - -static int vsc7385_is_addr_valid(u8 block, u8 subblock) -{ - switch (block) { - case VSC73XX_BLOCK_MAC: - switch (subblock) { - case 0 ... 4: - case 6: - return 1; - } - break; - - case VSC73XX_BLOCK_2: - case VSC73XX_BLOCK_SYSTEM: - switch (subblock) { - case 0: - return 1; - } - break; - - case VSC73XX_BLOCK_MII: - case VSC73XX_BLOCK_4: - case VSC73XX_BLOCK_5: - switch (subblock) { - case 0 ... 1: - return 1; - } - break; - } - - return 0; -} - -static inline u8 vsc7385_make_addr(u8 mode, u8 block, u8 subblock) -{ - u8 ret; - - ret = (block & VSC73XX_CMD_BLOCK_MASK) << VSC73XX_CMD_BLOCK_SHIFT; - ret |= (mode & 1) << VSC73XX_CMD_MODE_SHIFT; - ret |= subblock & VSC73XX_CMD_SUBBLOCK_MASK; - - return ret; -} - -static int vsc7385_read(struct vsc7385 *vsc, u8 block, u8 subblock, u8 reg, - u32 *value) -{ - u8 cmd[4]; - u8 buf[4]; - struct spi_transfer t[2]; - struct spi_message m; - int err; - - if (!vsc7385_is_addr_valid(block, subblock)) - return -EINVAL; - - spi_message_init(&m); - - memset(&t, 0, sizeof(t)); - - t[0].tx_buf = cmd; - t[0].len = sizeof(cmd); - spi_message_add_tail(&t[0], &m); - - t[1].rx_buf = buf; - t[1].len = sizeof(buf); - spi_message_add_tail(&t[1], &m); - - cmd[0] = vsc7385_make_addr(VSC73XX_CMD_MODE_READ, block, subblock); - cmd[1] = reg; - cmd[2] = 0; - cmd[3] = 0; - - mutex_lock(&vsc->lock); - err = spi_sync(vsc->spi, &m); - mutex_unlock(&vsc->lock); - - if (err) - return err; - - *value = (((u32) buf[0]) << 24) | (((u32) buf[1]) << 16) | - (((u32) buf[2]) << 8) | ((u32) buf[3]); - - return 0; -} - - -static int vsc7385_write(struct vsc7385 *vsc, u8 block, u8 subblock, u8 reg, - u32 value) -{ - u8 cmd[2]; - u8 buf[4]; - struct spi_transfer t[2]; - struct spi_message m; - int err; - - if (!vsc7385_is_addr_valid(block, subblock)) - return -EINVAL; - - spi_message_init(&m); - - memset(&t, 0, sizeof(t)); - - t[0].tx_buf = cmd; - t[0].len = sizeof(cmd); - spi_message_add_tail(&t[0], &m); - - t[1].tx_buf = buf; - t[1].len = sizeof(buf); - spi_message_add_tail(&t[1], &m); - - cmd[0] = vsc7385_make_addr(VSC73XX_CMD_MODE_WRITE, block, subblock); - cmd[1] = reg; - - buf[0] = (value >> 24) & 0xff; - buf[1] = (value >> 16) & 0xff; - buf[2] = (value >> 8) & 0xff; - buf[3] = value & 0xff; - - mutex_lock(&vsc->lock); - err = spi_sync(vsc->spi, &m); - mutex_unlock(&vsc->lock); - - return err; -} - -static inline int vsc7385_write_verify(struct vsc7385 *vsc, u8 block, - u8 subblock, u8 reg, u32 value, - u32 read_mask, u32 read_val) -{ - struct spi_device *spi = vsc->spi; - u32 t; - int err; - - err = vsc7385_write(vsc, block, subblock, reg, value); - if (err) - return err; - - err = vsc7385_read(vsc, block, subblock, reg, &t); - if (err) - return err; - - if ((t & read_mask) != read_val) { - dev_err(&spi->dev, "register write error\n"); - return -EIO; - } - - return 0; -} - -static inline int vsc7385_set_clock_delay(struct vsc7385 *vsc, u32 val) -{ - return vsc7385_write(vsc, VSC73XX_BLOCK_SYSTEM, 0, - VSC73XX_ICPU_CLOCK_DELAY, val); -} - -static inline int vsc7385_get_clock_delay(struct vsc7385 *vsc, u32 *val) -{ - return vsc7385_read(vsc, VSC73XX_BLOCK_SYSTEM, 0, - VSC73XX_ICPU_CLOCK_DELAY, val); -} - -static inline int vsc7385_icpu_stop(struct vsc7385 *vsc) -{ - return vsc7385_write(vsc, VSC73XX_BLOCK_SYSTEM, 0, VSC73XX_ICPU_CTRL, - VSC73XX_ICPU_CTRL_STOP); -} - -static inline int vsc7385_icpu_start(struct vsc7385 *vsc) -{ - return vsc7385_write(vsc, VSC73XX_BLOCK_SYSTEM, 0, VSC73XX_ICPU_CTRL, - VSC73XX_ICPU_CTRL_START); -} - -static inline int vsc7385_icpu_reset(struct vsc7385 *vsc) -{ - int rc; - - rc = vsc7385_write(vsc, VSC73XX_BLOCK_SYSTEM, 0, VSC73XX_ICPU_ADDR, - 0x0000); - if (rc) - dev_err(&vsc->spi->dev, - "could not reset microcode, err=%d\n", rc); - - return rc; -} - -static int vsc7385_upload_ucode(struct vsc7385 *vsc) -{ - struct spi_device *spi = vsc->spi; - const struct firmware *firmware; - char *ucode_name; - unsigned char *dp; - unsigned int curVal; - int i; - int diffs; - int rc; - - ucode_name = (vsc->pdata->ucode_name) ? vsc->pdata->ucode_name - : "vsc7385_ucode.bin"; - rc = request_firmware(&firmware, ucode_name, &spi->dev); - if (rc) { - dev_err(&spi->dev, "request_firmware failed, err=%d\n", - rc); - return rc; - } - - rc = vsc7385_icpu_stop(vsc); - if (rc) - goto out; - - rc = vsc7385_icpu_reset(vsc); - if (rc) - goto out; - - dev_info(&spi->dev, "uploading microcode...\n"); - - dp = (unsigned char *) firmware->data; - for (i = 0; i < firmware->size; i++) { - rc = vsc7385_write(vsc, VSC73XX_BLOCK_SYSTEM, 0, - VSC73XX_ICPU_SRAM, *dp++); - if (rc) { - dev_err(&spi->dev, "could not load microcode, err=%d\n", - rc); - goto out; - } - } - - rc = vsc7385_icpu_reset(vsc); - if (rc) - goto out; - - dev_info(&spi->dev, "verifying microcode...\n"); - - dp = (unsigned char *) firmware->data; - diffs = 0; - for (i = 0; i < firmware->size; i++) { - rc = vsc7385_read(vsc, VSC73XX_BLOCK_SYSTEM, 0, - VSC73XX_ICPU_SRAM, &curVal); - if (rc) { - dev_err(&spi->dev, "could not read microcode %d\n", - rc); - goto out; - } - - if (curVal > 0xff) { - dev_err(&spi->dev, "bad val read: %04x : %02x %02x\n", - i, *dp, curVal); - rc = -EIO; - goto out; - } - - if ((curVal & 0xff) != *dp) { - diffs++; - dev_err(&spi->dev, "verify error: %04x : %02x %02x\n", - i, *dp, curVal); - - if (diffs > 4) - break; - } - dp++; - } - - if (diffs) { - dev_err(&spi->dev, "microcode verification failed\n"); - rc = -EIO; - goto out; - } - - dev_info(&spi->dev, "microcode uploaded\n"); - - rc = vsc7385_icpu_start(vsc); - -out: - release_firmware(firmware); - return rc; -} - -static int vsc7385_setup(struct vsc7385 *vsc) -{ - struct vsc7385_platform_data *pdata = vsc->pdata; - u32 t; - int err; - - err = vsc7385_write_verify(vsc, VSC73XX_BLOCK_SYSTEM, 0, - VSC73XX_ICPU_CLOCK_DELAY, - VSC7385_CLOCK_DELAY, - VSC7385_CLOCK_DELAY_MASK, - VSC7385_CLOCK_DELAY); - if (err) - goto err; - - err = vsc7385_write_verify(vsc, VSC73XX_BLOCK_MAC, - VSC73XX_SUBBLOCK_PORT_MAC, VSC73XX_ADVPORTM, - VSC7385_ADVPORTM_INIT, - VSC7385_ADVPORTM_MASK, - VSC7385_ADVPORTM_INIT); - if (err) - goto err; - - err = vsc7385_write(vsc, VSC73XX_BLOCK_MAC, VSC73XX_SUBBLOCK_PORT_MAC, - VSC73XX_MAC_CFG, VSC7385_MAC_CFG_RESET); - if (err) - goto err; - - t = VSC73XX_MAC_CFG_INIT; - t |= VSC73XX_MAC_CFG_TX_IPG(pdata->mac_cfg.tx_ipg); - t |= VSC73XX_MAC_CFG_CLK_SEL(pdata->mac_cfg.clk_sel); - if (pdata->mac_cfg.bit2) - t |= VSC73XX_MAC_CFG_BIT2; - - err = vsc7385_write(vsc, VSC73XX_BLOCK_MAC, VSC73XX_SUBBLOCK_PORT_MAC, - VSC73XX_MAC_CFG, t); - if (err) - goto err; - - return 0; - -err: - return err; -} - -static int vsc7385_detect(struct vsc7385 *vsc) -{ - struct spi_device *spi = vsc->spi; - u32 t; - u32 id; - u32 rev; - int err; - - err = vsc7385_read(vsc, VSC73XX_BLOCK_SYSTEM, 0, - VSC73XX_ICPU_MBOX_VAL, &t); - if (err) { - dev_err(&spi->dev, "unable to read mailbox, err=%d\n", err); - return err; - } - - if (t == 0xffffffff) { - dev_dbg(&spi->dev, "assert chip reset\n"); - if (vsc->pdata->reset) - vsc->pdata->reset(); - - } - - err = vsc7385_read(vsc, VSC73XX_BLOCK_SYSTEM, 0, - VSC73XX_ICPU_CHIPID, &t); - if (err) { - dev_err(&spi->dev, "unable to read chip id, err=%d\n", err); - return err; - } - - id = (t >> VSC73XX_ICPU_CHIPID_ID_SHIFT) & VSC73XX_ICPU_CHIPID_ID_MASK; - switch (id) { - case VSC73XX_ICPU_CHIPID_ID_7385: - case VSC73XX_ICPU_CHIPID_ID_7395: - break; - default: - dev_err(&spi->dev, "unsupported chip, id=%04x\n", id); - return -ENODEV; - } - - rev = (t >> VSC73XX_ICPU_CHIPID_REV_SHIFT) & - VSC73XX_ICPU_CHIPID_REV_MASK; - dev_info(&spi->dev, "VSC%04X (rev. %d) switch found\n", id, rev); - - return 0; -} - -static int vsc7385_probe(struct spi_device *spi) -{ - struct vsc7385 *vsc; - struct vsc7385_platform_data *pdata; - int err; - - printk(KERN_INFO DRV_DESC " version " DRV_VERSION"\n"); - - pdata = spi->dev.platform_data; - if (!pdata) { - dev_err(&spi->dev, "no platform data specified\n"); - return -ENODEV; - } - - vsc = kzalloc(sizeof(*vsc), GFP_KERNEL); - if (!vsc) { - dev_err(&spi->dev, "no memory for private data\n"); - return -ENOMEM; - } - - mutex_init(&vsc->lock); - vsc->pdata = pdata; - vsc->spi = spi_dev_get(spi); - dev_set_drvdata(&spi->dev, vsc); - - spi->mode = SPI_MODE_0; - spi->bits_per_word = 8; - err = spi_setup(spi); - if (err) { - dev_err(&spi->dev, "spi_setup failed, err=%d\n", err); - goto err_drvdata; - } - - err = vsc7385_detect(vsc); - if (err) { - dev_err(&spi->dev, "no chip found, err=%d\n", err); - goto err_drvdata; - } - - err = vsc7385_upload_ucode(vsc); - if (err) - goto err_drvdata; - - err = vsc7385_setup(vsc); - if (err) - goto err_drvdata; - - return 0; - -err_drvdata: - dev_set_drvdata(&spi->dev, NULL); - kfree(vsc); - return err; -} - -static int vsc7385_remove(struct spi_device *spi) -{ - struct vsc7385_data *vsc; - - vsc = dev_get_drvdata(&spi->dev); - dev_set_drvdata(&spi->dev, NULL); - kfree(vsc); - - return 0; -} - -static struct spi_driver vsc7385_driver = { - .driver = { - .name = DRV_NAME, - .bus = &spi_bus_type, - .owner = THIS_MODULE, - }, - .probe = vsc7385_probe, - .remove = vsc7385_remove, -}; - -static int __init vsc7385_init(void) -{ - return spi_register_driver(&vsc7385_driver); -} -module_init(vsc7385_init); - -static void __exit vsc7385_exit(void) -{ - spi_unregister_driver(&vsc7385_driver); -} -module_exit(vsc7385_exit); - -MODULE_DESCRIPTION(DRV_DESC); -MODULE_VERSION(DRV_VERSION); -MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>"); -MODULE_LICENSE("GPL v2"); - |