+++ /dev/null
-/*
- * 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);
projects / openwrt / svn-archive / archive.git / blobdiff