From 1ba38f6100243b263fc0d147cd59e76c1ad87a61 Mon Sep 17 00:00:00 2001 From: Jonas Gorski Date: Sat, 13 Jan 2018 18:43:32 +0100 Subject: brcm63xx: add kernel 4.14 support Add support for kernel 4.14. Increases compressed kernel size by ~64k compared to 4.9. Signed-off-by: Jonas Gorski --- ...nctrl-add-a-pincontrol-driver-for-BCM6358.patch | 436 +++++++++++++++++++++ 1 file changed, 436 insertions(+) create mode 100644 target/linux/brcm63xx/patches-4.14/136-pinctrl-add-a-pincontrol-driver-for-BCM6358.patch (limited to 'target/linux/brcm63xx/patches-4.14/136-pinctrl-add-a-pincontrol-driver-for-BCM6358.patch') diff --git a/target/linux/brcm63xx/patches-4.14/136-pinctrl-add-a-pincontrol-driver-for-BCM6358.patch b/target/linux/brcm63xx/patches-4.14/136-pinctrl-add-a-pincontrol-driver-for-BCM6358.patch new file mode 100644 index 0000000000..87dc741e21 --- /dev/null +++ b/target/linux/brcm63xx/patches-4.14/136-pinctrl-add-a-pincontrol-driver-for-BCM6358.patch @@ -0,0 +1,436 @@ +From fb00ef462f3f8b70ea8902151cc72810fe90b999 Mon Sep 17 00:00:00 2001 +From: Jonas Gorski +Date: Fri, 24 Jun 2016 22:16:01 +0200 +Subject: [PATCH 07/16] pinctrl: add a pincontrol driver for BCM6358 + +Add a pincotrol driver for BCM6358. BCM6358 allow overlaying different +functions onto the GPIO pins. It does not support configuring individual +pins but only whole groups. These groups may overlap, and still require +the directions to be set correctly in the GPIO register. In addition the +functions register controls other, not directly mux related functions. + +Signed-off-by: Jonas Gorski +--- + drivers/pinctrl/bcm63xx/Kconfig | 8 + + drivers/pinctrl/bcm63xx/Makefile | 1 + + drivers/pinctrl/bcm63xx/pinctrl-bcm6358.c | 393 ++++++++++++++++++++++++++++++ + 3 files changed, 402 insertions(+) + create mode 100644 drivers/pinctrl/bcm63xx/pinctrl-bcm6358.c + +--- a/drivers/pinctrl/bcm63xx/Kconfig ++++ b/drivers/pinctrl/bcm63xx/Kconfig +@@ -15,3 +15,11 @@ config PINCTRL_BCM6348 + select PINCONF + select PINCTRL_BCM63XX + select GENERIC_PINCONF ++ ++config PINCTRL_BCM6358 ++ bool "BCM6358 pincontrol driver" if COMPILE_TEST ++ select PINMUX ++ select PINCONF ++ select PINCTRL_BCM63XX ++ select GENERIC_PINCONF ++ select MFD_SYSCON +--- a/drivers/pinctrl/bcm63xx/Makefile ++++ b/drivers/pinctrl/bcm63xx/Makefile +@@ -1,3 +1,4 @@ + obj-$(CONFIG_PINCTRL_BCM63XX) += pinctrl-bcm63xx.o + obj-$(CONFIG_PINCTRL_BCM6328) += pinctrl-bcm6328.o + obj-$(CONFIG_PINCTRL_BCM6348) += pinctrl-bcm6348.o ++obj-$(CONFIG_PINCTRL_BCM6358) += pinctrl-bcm6358.o +--- /dev/null ++++ b/drivers/pinctrl/bcm63xx/pinctrl-bcm6358.c +@@ -0,0 +1,393 @@ ++/* ++ * This file is subject to the terms and conditions of the GNU General Public ++ * License. See the file "COPYING" in the main directory of this archive ++ * for more details. ++ * ++ * Copyright (C) 2016 Jonas Gorski ++ */ ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++#include ++#include ++#include ++#include ++ ++#include "../core.h" ++#include "../pinctrl-utils.h" ++ ++#include "pinctrl-bcm63xx.h" ++ ++/* GPIO_MODE register */ ++#define BCM6358_MODE_MUX_NONE 0 ++ ++/* overlays on gpio pins */ ++#define BCM6358_MODE_MUX_EBI_CS BIT(5) ++#define BCM6358_MODE_MUX_UART1 BIT(6) ++#define BCM6358_MODE_MUX_SPI_CS BIT(7) ++#define BCM6358_MODE_MUX_ASYNC_MODEM BIT(8) ++#define BCM6358_MODE_MUX_LEGACY_LED BIT(9) ++#define BCM6358_MODE_MUX_SERIAL_LED BIT(10) ++#define BCM6358_MODE_MUX_LED BIT(11) ++#define BCM6358_MODE_MUX_UTOPIA BIT(12) ++#define BCM6358_MODE_MUX_CLKRST BIT(13) ++#define BCM6358_MODE_MUX_PWM_SYN_CLK BIT(14) ++#define BCM6358_MODE_MUX_SYS_IRQ BIT(15) ++ ++#define BCM6358_NGPIO 40 ++ ++struct bcm6358_pingroup { ++ const char *name; ++ const unsigned * const pins; ++ const unsigned num_pins; ++ ++ const u16 mode_val; ++ ++ /* non-GPIO function muxes require the gpio direction to be set */ ++ const u16 direction; ++}; ++ ++struct bcm6358_function { ++ const char *name; ++ const char * const *groups; ++ const unsigned num_groups; ++}; ++ ++struct bcm6358_pinctrl { ++ struct device *dev; ++ struct pinctrl_dev *pctldev; ++ struct pinctrl_desc desc; ++ ++ struct regmap_field *overlays; ++ ++ struct gpio_chip gpio[2]; ++}; ++ ++#define BCM6358_GPIO_PIN(a, b, bit1, bit2, bit3) \ ++ { \ ++ .number = a, \ ++ .name = b, \ ++ .drv_data = (void *)(BCM6358_MODE_MUX_##bit1 | \ ++ BCM6358_MODE_MUX_##bit2 | \ ++ BCM6358_MODE_MUX_##bit3), \ ++ } ++ ++static const struct pinctrl_pin_desc bcm6358_pins[] = { ++ BCM6358_GPIO_PIN(0, "gpio0", LED, NONE, NONE), ++ BCM6358_GPIO_PIN(1, "gpio1", LED, NONE, NONE), ++ BCM6358_GPIO_PIN(2, "gpio2", LED, NONE, NONE), ++ BCM6358_GPIO_PIN(3, "gpio3", LED, NONE, NONE), ++ PINCTRL_PIN(4, "gpio4"), ++ BCM6358_GPIO_PIN(5, "gpio5", SYS_IRQ, NONE, NONE), ++ BCM6358_GPIO_PIN(6, "gpio6", SERIAL_LED, NONE, NONE), ++ BCM6358_GPIO_PIN(7, "gpio7", SERIAL_LED, NONE, NONE), ++ BCM6358_GPIO_PIN(8, "gpio8", PWM_SYN_CLK, NONE, NONE), ++ BCM6358_GPIO_PIN(9, "gpio09", LEGACY_LED, NONE, NONE), ++ BCM6358_GPIO_PIN(10, "gpio10", LEGACY_LED, NONE, NONE), ++ BCM6358_GPIO_PIN(11, "gpio11", LEGACY_LED, NONE, NONE), ++ BCM6358_GPIO_PIN(12, "gpio12", LEGACY_LED, ASYNC_MODEM, UTOPIA), ++ BCM6358_GPIO_PIN(13, "gpio13", LEGACY_LED, ASYNC_MODEM, UTOPIA), ++ BCM6358_GPIO_PIN(14, "gpio14", LEGACY_LED, ASYNC_MODEM, UTOPIA), ++ BCM6358_GPIO_PIN(15, "gpio15", LEGACY_LED, ASYNC_MODEM, UTOPIA), ++ PINCTRL_PIN(16, "gpio16"), ++ PINCTRL_PIN(17, "gpio17"), ++ PINCTRL_PIN(18, "gpio18"), ++ PINCTRL_PIN(19, "gpio19"), ++ PINCTRL_PIN(20, "gpio20"), ++ PINCTRL_PIN(21, "gpio21"), ++ BCM6358_GPIO_PIN(22, "gpio22", UTOPIA, NONE, NONE), ++ BCM6358_GPIO_PIN(23, "gpio23", UTOPIA, NONE, NONE), ++ BCM6358_GPIO_PIN(24, "gpio24", UTOPIA, NONE, NONE), ++ BCM6358_GPIO_PIN(25, "gpio25", UTOPIA, NONE, NONE), ++ BCM6358_GPIO_PIN(26, "gpio26", UTOPIA, NONE, NONE), ++ BCM6358_GPIO_PIN(27, "gpio27", UTOPIA, NONE, NONE), ++ BCM6358_GPIO_PIN(28, "gpio28", UTOPIA, UART1, NONE), ++ BCM6358_GPIO_PIN(29, "gpio29", UTOPIA, UART1, NONE), ++ BCM6358_GPIO_PIN(30, "gpio30", UTOPIA, UART1, EBI_CS), ++ BCM6358_GPIO_PIN(31, "gpio31", UTOPIA, UART1, EBI_CS), ++ BCM6358_GPIO_PIN(32, "gpio32", SPI_CS, NONE, NONE), ++ BCM6358_GPIO_PIN(33, "gpio33", SPI_CS, NONE, NONE), ++ PINCTRL_PIN(34, "gpio34"), ++ PINCTRL_PIN(35, "gpio35"), ++ PINCTRL_PIN(36, "gpio36"), ++ PINCTRL_PIN(37, "gpio37"), ++ PINCTRL_PIN(38, "gpio38"), ++ PINCTRL_PIN(39, "gpio39"), ++}; ++ ++static unsigned ebi_cs_grp_pins[] = { 30, 31 }; ++ ++static unsigned uart1_grp_pins[] = { 28, 29, 30, 31 }; ++ ++static unsigned spi_cs_grp_pins[] = { 32, 33 }; ++ ++static unsigned async_modem_grp_pins[] = { 12, 13, 14, 15 }; ++ ++static unsigned serial_led_grp_pins[] = { 6, 7 }; ++ ++static unsigned legacy_led_grp_pins[] = { 9, 10, 11, 12, 13, 14, 15 }; ++ ++static unsigned led_grp_pins[] = { 0, 1, 2, 3 }; ++ ++static unsigned utopia_grp_pins[] = { ++ 12, 13, 14, 15, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, ++}; ++ ++static unsigned pwm_syn_clk_grp_pins[] = { 8 }; ++ ++static unsigned sys_irq_grp_pins[] = { 5 }; ++ ++#define BCM6358_GPIO_MUX_GROUP(n, bit, dir) \ ++ { \ ++ .name = #n, \ ++ .pins = n##_pins, \ ++ .num_pins = ARRAY_SIZE(n##_pins), \ ++ .mode_val = BCM6358_MODE_MUX_##bit, \ ++ .direction = dir, \ ++ } ++ ++static const struct bcm6358_pingroup bcm6358_groups[] = { ++ BCM6358_GPIO_MUX_GROUP(ebi_cs_grp, EBI_CS, 0x3), ++ BCM6358_GPIO_MUX_GROUP(uart1_grp, UART1, 0x2), ++ BCM6358_GPIO_MUX_GROUP(spi_cs_grp, SPI_CS, 0x6), ++ BCM6358_GPIO_MUX_GROUP(async_modem_grp, ASYNC_MODEM, 0x6), ++ BCM6358_GPIO_MUX_GROUP(legacy_led_grp, LEGACY_LED, 0x7f), ++ BCM6358_GPIO_MUX_GROUP(serial_led_grp, SERIAL_LED, 0x3), ++ BCM6358_GPIO_MUX_GROUP(led_grp, LED, 0xf), ++ BCM6358_GPIO_MUX_GROUP(utopia_grp, UTOPIA, 0x000f), ++ BCM6358_GPIO_MUX_GROUP(pwm_syn_clk_grp, PWM_SYN_CLK, 0x1), ++ BCM6358_GPIO_MUX_GROUP(sys_irq_grp, SYS_IRQ, 0x1), ++}; ++ ++static const char * const ebi_cs_groups[] = { ++ "ebi_cs_grp" ++}; ++ ++static const char * const uart1_groups[] = { ++ "uart1_grp" ++}; ++ ++static const char * const spi_cs_2_3_groups[] = { ++ "spi_cs_2_3_grp" ++}; ++ ++static const char * const async_modem_groups[] = { ++ "async_modem_grp" ++}; ++ ++static const char * const legacy_led_groups[] = { ++ "legacy_led_grp", ++}; ++ ++static const char * const serial_led_groups[] = { ++ "serial_led_grp", ++}; ++ ++static const char * const led_groups[] = { ++ "led_grp", ++}; ++ ++static const char * const clkrst_groups[] = { ++ "clkrst_grp", ++}; ++ ++static const char * const pwm_syn_clk_groups[] = { ++ "pwm_syn_clk_grp", ++}; ++ ++static const char * const sys_irq_groups[] = { ++ "sys_irq_grp", ++}; ++ ++#define BCM6358_FUN(n) \ ++ { \ ++ .name = #n, \ ++ .groups = n##_groups, \ ++ .num_groups = ARRAY_SIZE(n##_groups), \ ++ } ++ ++static const struct bcm6358_function bcm6358_funcs[] = { ++ BCM6358_FUN(ebi_cs), ++ BCM6358_FUN(uart1), ++ BCM6358_FUN(spi_cs_2_3), ++ BCM6358_FUN(async_modem), ++ BCM6358_FUN(legacy_led), ++ BCM6358_FUN(serial_led), ++ BCM6358_FUN(led), ++ BCM6358_FUN(clkrst), ++ BCM6358_FUN(pwm_syn_clk), ++ BCM6358_FUN(sys_irq), ++}; ++ ++static int bcm6358_pinctrl_get_group_count(struct pinctrl_dev *pctldev) ++{ ++ return ARRAY_SIZE(bcm6358_groups); ++} ++ ++static const char *bcm6358_pinctrl_get_group_name(struct pinctrl_dev *pctldev, ++ unsigned group) ++{ ++ return bcm6358_groups[group].name; ++} ++ ++static int bcm6358_pinctrl_get_group_pins(struct pinctrl_dev *pctldev, ++ unsigned group, const unsigned **pins, ++ unsigned *num_pins) ++{ ++ *pins = bcm6358_groups[group].pins; ++ *num_pins = bcm6358_groups[group].num_pins; ++ ++ return 0; ++} ++ ++static int bcm6358_pinctrl_get_func_count(struct pinctrl_dev *pctldev) ++{ ++ return ARRAY_SIZE(bcm6358_funcs); ++} ++ ++static const char *bcm6358_pinctrl_get_func_name(struct pinctrl_dev *pctldev, ++ unsigned selector) ++{ ++ return bcm6358_funcs[selector].name; ++} ++ ++static int bcm6358_pinctrl_get_groups(struct pinctrl_dev *pctldev, ++ unsigned selector, ++ const char * const **groups, ++ unsigned * const num_groups) ++{ ++ *groups = bcm6358_funcs[selector].groups; ++ *num_groups = bcm6358_funcs[selector].num_groups; ++ ++ return 0; ++} ++ ++static int bcm6358_pinctrl_set_mux(struct pinctrl_dev *pctldev, ++ unsigned selector, unsigned group) ++{ ++ struct bcm6358_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); ++ const struct bcm6358_pingroup *grp = &bcm6358_groups[group]; ++ u32 val = grp->mode_val; ++ u32 mask = val; ++ unsigned pin; ++ ++ for (pin = 0; pin < grp->num_pins; pin++) ++ mask |= (unsigned long)bcm6358_pins[pin].drv_data; ++ ++ regmap_field_update_bits(pctl->overlays, mask, val); ++ ++ for (pin = 0; pin < grp->num_pins; pin++) { ++ int hw_gpio = bcm6358_pins[pin].number; ++ struct gpio_chip *gc = &pctl->gpio[hw_gpio / 32]; ++ ++ if (grp->direction & BIT(pin)) ++ gc->direction_output(gc, hw_gpio % 32, 0); ++ else ++ gc->direction_input(gc, hw_gpio % 32); ++ } ++ ++ return 0; ++} ++ ++static int bcm6358_gpio_request_enable(struct pinctrl_dev *pctldev, ++ struct pinctrl_gpio_range *range, ++ unsigned offset) ++{ ++ struct bcm6358_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); ++ u32 mask; ++ ++ mask = (unsigned long)bcm6358_pins[offset].drv_data; ++ if (!mask) ++ return 0; ++ ++ /* disable all functions using this pin */ ++ return regmap_field_update_bits(pctl->overlays, mask, 0); ++} ++ ++static struct pinctrl_ops bcm6358_pctl_ops = { ++ .get_groups_count = bcm6358_pinctrl_get_group_count, ++ .get_group_name = bcm6358_pinctrl_get_group_name, ++ .get_group_pins = bcm6358_pinctrl_get_group_pins, ++#ifdef CONFIG_OF ++ .dt_node_to_map = pinconf_generic_dt_node_to_map_pin, ++ .dt_free_map = pinctrl_utils_free_map, ++#endif ++}; ++ ++static struct pinmux_ops bcm6358_pmx_ops = { ++ .get_functions_count = bcm6358_pinctrl_get_func_count, ++ .get_function_name = bcm6358_pinctrl_get_func_name, ++ .get_function_groups = bcm6358_pinctrl_get_groups, ++ .set_mux = bcm6358_pinctrl_set_mux, ++ .gpio_request_enable = bcm6358_gpio_request_enable, ++ .strict = true, ++}; ++ ++static int bcm6358_pinctrl_probe(struct platform_device *pdev) ++{ ++ struct bcm6358_pinctrl *pctl; ++ struct regmap *mode; ++ struct reg_field overlays = REG_FIELD(0, 0, 15); ++ ++ if (pdev->dev.of_node) ++ mode = syscon_regmap_lookup_by_phandle(pdev->dev.of_node, ++ "brcm,gpiomode"); ++ else ++ mode = syscon_regmap_lookup_by_pdevname("syscon.fffe0098"); ++ ++ if (IS_ERR(mode)) ++ return PTR_ERR(mode); ++ ++ pctl = devm_kzalloc(&pdev->dev, sizeof(*pctl), GFP_KERNEL); ++ if (!pctl) ++ return -ENOMEM; ++ ++ pctl->overlays = devm_regmap_field_alloc(&pdev->dev, mode, overlays); ++ if (IS_ERR(pctl->overlays)) ++ return PTR_ERR(pctl->overlays); ++ ++ /* disable all muxes by default */ ++ regmap_field_write(pctl->overlays, 0); ++ ++ pctl->desc.name = dev_name(&pdev->dev); ++ pctl->desc.owner = THIS_MODULE; ++ pctl->desc.pctlops = &bcm6358_pctl_ops; ++ pctl->desc.pmxops = &bcm6358_pmx_ops; ++ ++ pctl->desc.npins = ARRAY_SIZE(bcm6358_pins); ++ pctl->desc.pins = bcm6358_pins; ++ ++ platform_set_drvdata(pdev, pctl); ++ ++ pctl->pctldev = bcm63xx_pinctrl_register(pdev, &pctl->desc, pctl, ++ pctl->gpio, BCM6358_NGPIO); ++ if (IS_ERR(pctl->pctldev)) ++ return PTR_ERR(pctl->pctldev); ++ ++ return 0; ++} ++ ++static const struct of_device_id bcm6358_pinctrl_match[] = { ++ { .compatible = "brcm,bcm6358-pinctrl", }, ++ { }, ++}; ++ ++static struct platform_driver bcm6358_pinctrl_driver = { ++ .probe = bcm6358_pinctrl_probe, ++ .driver = { ++ .name = "bcm6358-pinctrl", ++ .of_match_table = bcm6358_pinctrl_match, ++ }, ++}; ++ ++builtin_platform_driver(bcm6358_pinctrl_driver); -- cgit v1.2.3