diff options
Diffstat (limited to 'target/linux/xburst/files-2.6.32/arch/mips/jz4740/board-n526.c')
| -rw-r--r-- | target/linux/xburst/files-2.6.32/arch/mips/jz4740/board-n526.c | 333 |
1 files changed, 0 insertions, 333 deletions
diff --git a/target/linux/xburst/files-2.6.32/arch/mips/jz4740/board-n526.c b/target/linux/xburst/files-2.6.32/arch/mips/jz4740/board-n526.c deleted file mode 100644 index e3e671011e..0000000000 --- a/target/linux/xburst/files-2.6.32/arch/mips/jz4740/board-n526.c +++ /dev/null @@ -1,333 +0,0 @@ -/* - * Copyright (C) 2009, Lars-Peter Clausen <lars@metafoo.de> - * N526 eBook reader support - * - * 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. - * - * 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., - * 675 Mass Ave, Cambridge, MA 02139, USA. - * - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/gpio.h> - -#include <asm/mach-jz4740/platform.h> - -#include <linux/mtd/jz4740_nand.h> -#include <linux/jz4740_fb.h> -#include <linux/power_supply.h> -#include <linux/mmc/jz4740_mmc.h> - -#include <video/broadsheetfb.h> -#include <linux/delay.h> -#include <linux/interrupt.h> - -#include <linux/input.h> -#include <linux/gpio_keys.h> - -#include <linux/i2c.h> -#include <linux/i2c-gpio.h> - -#include "clock.h" - -/* NAND */ -static struct nand_ecclayout n526_ecclayout = { - .eccbytes = 36, - .eccpos = { - 6, 7, 8, 9, 10, 11, 12, 13, - 14, 15, 16, 17, 18, 19, 20, 21, - 22, 23, 24, 25, 26, 27, 28, 29, - 30, 31, 32, 33, 34, 35, 36, 37, - 38, 39, 40, 41}, - .oobfree = { - {.offset = 2, - .length = 4}, - {.offset = 42, - .length = 22}} -}; - -static struct mtd_partition n526_partitions[] = { - { .name = "NAND BOOT partition", - .offset = 0 * 0x100000, - .size = 4 * 0x100000, - }, - { .name = "NAND KERNEL partition", - .offset = 4 * 0x100000, - .size = 4 * 0x100000, - }, - { .name = "NAND ROOTFS partition", - .offset = 16 * 0x100000, - .size = 498 * 0x100000, - }, -}; - -static struct jz_nand_platform_data n526_nand_pdata = { - .ecc_layout = &n526_ecclayout, - .partitions = n526_partitions, - .num_partitions = ARRAY_SIZE(n526_partitions), - .busy_gpio = 94, -}; - -static struct jz4740_mmc_platform_data n526_mmc_pdata = { - .gpio_card_detect = JZ_GPIO_PORTD(7), - .card_detect_active_low = 1, - .gpio_read_only = -1, - .gpio_power = JZ_GPIO_PORTD(17), - .power_active_low = 1, -}; - -static struct gpio_led n526_leds[] = { - { - .name = "n526:blue:power", - .gpio = JZ_GPIO_PORTD(28), - .default_state = LEDS_GPIO_DEFSTATE_ON, - } -}; - -static struct gpio_led_platform_data n526_leds_pdata = { - .leds = n526_leds, - .num_leds = ARRAY_SIZE(n526_leds), -}; - -static struct platform_device n526_leds_device = { - .name = "leds-gpio", - .id = -1, - .dev = { - .platform_data = &n526_leds_pdata, - }, -}; - -static void __init board_gpio_setup(void) -{ - /* We only need to enable/disable pullup here for pins used in generic - * drivers. Everything else is done by the drivers themselfs. */ - jz_gpio_disable_pullup(JZ_GPIO_PORTD(17)); - jz_gpio_enable_pullup(JZ_GPIO_PORTD(7)); - jz_gpio_disable_pullup(JZ_GPIO_PORTC(19)); - jz_gpio_disable_pullup(JZ_GPIO_PORTC(20)); - jz_gpio_disable_pullup(JZ_GPIO_PORTC(21)); - jz_gpio_disable_pullup(JZ_GPIO_PORTC(23)); -} - - -static const int n526_eink_ctrl_gpios[] = { - 0, - JZ_GPIO_PORTC(23), - JZ_GPIO_PORTC(19), - JZ_GPIO_PORTC(20), -}; - -static void n526_eink_set_ctl(struct broadsheetfb_par * par, unsigned char ctrl, u8 -value) -{ - gpio_set_value(n526_eink_ctrl_gpios[ctrl], value); -} - - -static int n526_eink_wait(struct broadsheetfb_par *par) -{ - wait_event(par->waitq, gpio_get_value(JZ_GPIO_PORTB(17))); - - return 0; -} - -static u16 n526_eink_get_hdb(struct broadsheetfb_par *par) -{ - u16 value = 0; - jz_gpio_port_direction_input(JZ_GPIO_PORTC(0), 0xffff); - gpio_set_value(JZ_GPIO_PORTC(21), 0); - mdelay(100); - - value = jz_gpio_port_get_value(JZ_GPIO_PORTC(0), 0xffff); - - gpio_set_value(JZ_GPIO_PORTC(21), 1); - jz_gpio_port_direction_output(JZ_GPIO_PORTC(0), 0xffff); - return value; -} - -static void n526_eink_set_hdb(struct broadsheetfb_par *par, u16 value) -{ - jz_gpio_port_set_value(JZ_GPIO_PORTC(0), value, 0xffff); -} - -static int n526_eink_init(struct broadsheetfb_par *par) -{ - int i; - - gpio_request(JZ_GPIO_PORTD(1), "display reset"); - gpio_direction_output(JZ_GPIO_PORTD(1), 1); - mdelay(10); - gpio_set_value(JZ_GPIO_PORTD(1), 0); - - gpio_request(JZ_GPIO_PORTB(18), "eink enable"); - gpio_direction_output(JZ_GPIO_PORTB(18), 0); - - gpio_request(JZ_GPIO_PORTB(29), "foobar"); - gpio_direction_output(JZ_GPIO_PORTB(29), 1); - - for(i = 1; i < ARRAY_SIZE(n526_eink_ctrl_gpios); ++i) { - gpio_request(n526_eink_ctrl_gpios[i], "eink display ctrl"); - gpio_direction_output(n526_eink_ctrl_gpios[i], 0); - } - - gpio_request(JZ_GPIO_PORTC(22), "foobar"); - gpio_direction_input(JZ_GPIO_PORTC(22)); - gpio_request(JZ_GPIO_PORTC(21), "eink nRD"); - gpio_direction_output(JZ_GPIO_PORTC(21), 1); - - for(i = 0; i < 16; ++i) { - gpio_request(JZ_GPIO_PORTC(i), "eink display data"); - } - jz_gpio_port_direction_output(JZ_GPIO_PORTC(0), 0xffff); - - gpio_set_value(JZ_GPIO_PORTB(18), 1); - - return 0; -} - -static irqreturn_t n526_eink_busy_irq(int irq, void *devid) -{ - struct broadsheetfb_par *par = devid; - wake_up(&par->waitq); - - return IRQ_HANDLED; -} - -static int n526_eink_setup_irq(struct fb_info *info) -{ - int ret; - struct broadsheetfb_par *par = info->par; - - gpio_request(JZ_GPIO_PORTB(17), "eink busy"); - gpio_direction_input(JZ_GPIO_PORTB(17)); - - ret = request_irq(gpio_to_irq(JZ_GPIO_PORTB(17)), n526_eink_busy_irq, - IRQF_DISABLED | IRQF_TRIGGER_RISING, - "eink busyline", par); - if (ret) - printk("n526 display: Failed to request busyline irq: %d\n", ret); - return 0; -} - -static void n526_eink_cleanup(struct broadsheetfb_par *par) -{ -} - -static struct broadsheet_board broadsheet_pdata = { - .owner = THIS_MODULE, - .init = n526_eink_init, - .wait_for_rdy = n526_eink_wait, - .set_ctl = n526_eink_set_ctl, - .set_hdb = n526_eink_set_hdb, - .get_hdb = n526_eink_get_hdb, - .cleanup = n526_eink_cleanup, - .setup_irq = n526_eink_setup_irq, -}; - -static struct platform_device n526_broadsheet_device = { - .name = "broadsheetfb", - .id = -1, - .dev = { - .platform_data = &broadsheet_pdata, - }, -}; - -static struct gpio_keys_button qi_lb60_gpio_keys_buttons[] = { - [0] = { - .code = KEY_ENTER, - .gpio = 0, - .active_low = 1, - .desc = "Power", - }, -}; - -static struct gpio_keys_platform_data qi_lb60_gpio_keys_data = { - .nbuttons = ARRAY_SIZE(qi_lb60_gpio_keys_buttons), - .buttons = qi_lb60_gpio_keys_buttons, -}; - -static struct platform_device qi_lb60_gpio_keys = { - .name = "gpio-keys", - .id = -1, - .dev = { - .platform_data = &qi_lb60_gpio_keys_data, - } -}; - -static struct i2c_gpio_platform_data n526_i2c_pdata = { - .sda_pin = JZ_GPIO_PORTD(23), - .scl_pin = JZ_GPIO_PORTD(24), - .udelay = 2, - .timeout = 3 * HZ, -}; - -static struct platform_device n526_i2c_device = { - .name = "i2c-gpio", - .id = -1, - .dev = { - .platform_data = &n526_i2c_pdata, - }, -}; - -static struct i2c_board_info n526_i2c_board_info = { - .type = "n526-lpc", - .addr = 0x54, -}; - -static struct platform_device *jz_platform_devices[] __initdata = { - &jz4740_usb_ohci_device, - &jz4740_usb_gdt_device, - &jz4740_mmc_device, - &jz4740_nand_device, - &jz4740_i2s_device, - &jz4740_codec_device, - &jz4740_rtc_device, - &n526_leds_device, - &n526_broadsheet_device, - &qi_lb60_gpio_keys, - &n526_i2c_device, -}; - - -static int __init n526_init_platform_devices(void) -{ - - jz4740_nand_device.dev.platform_data = &n526_nand_pdata; - jz4740_mmc_device.dev.platform_data = &n526_mmc_pdata; - - n526_i2c_board_info.irq = gpio_to_irq(JZ_GPIO_PORTD(14)), - i2c_register_board_info(0, &n526_i2c_board_info, 1); - - return platform_add_devices(jz_platform_devices, - ARRAY_SIZE(jz_platform_devices)); - -} - -struct jz4740_clock_board_data jz4740_clock_bdata = { - .ext_rate = 12000000, - .rtc_rate = 32768, -}; - -extern int jz_gpiolib_init(void); - -static int __init n526_board_setup(void) -{ - if (jz_gpiolib_init()) - panic("Failed to initalize jz gpio\n"); - - jz4740_clock_init(); - board_gpio_setup(); - - if (n526_init_platform_devices()) - panic("Failed to initalize platform devices\n"); - - return 0; -} - -arch_initcall(n526_board_setup); |