201 lines
4.4 KiB
C
201 lines
4.4 KiB
C
/*
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* linux/arch/mips/jz4740/board-516.c
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*
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* JZ4740 n516 board setup routines.
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*
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* Copyright (c) 2009, Yauhen Kharuzhy <jekhor@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#include <linux/init.h>
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#include <linux/sched.h>
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#include <linux/ioport.h>
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#include <linux/mm.h>
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#include <linux/console.h>
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#include <linux/delay.h>
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#include <linux/i2c.h>
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#include <linux/platform_device.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mmc/jz4740_mmc.h>
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#include <linux/mtd/jz4740_nand.h>
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#include <linux/leds.h>
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#include <linux/power_supply.h>
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#include <linux/power/gpio-charger.h>
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#include <linux/i2c.h>
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#include <linux/i2c-gpio.h>
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#include <asm/mach-jz4740/board-n516.h>
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#include <asm/mach-jz4740/platform.h>
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#include "clock.h"
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static long n516_panic_blink(long time)
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{
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gpio_set_value(GPIO_LED_ENABLE, 1);
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mdelay(200);
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gpio_set_value(GPIO_LED_ENABLE, 0);
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mdelay(200);
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return 400;
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}
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static void __init board_gpio_setup(void)
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{
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/* jz_gpio_enable_pullup(JZ_GPIO_PORTD(23));
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jz_gpio_enable_pullup(JZ_GPIO_PORTD(24));*/
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}
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static struct i2c_gpio_platform_data n516_i2c_pdata = {
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.sda_pin = JZ_GPIO_PORTD(23),
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.scl_pin = JZ_GPIO_PORTD(24),
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.udelay = 2,
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.timeout = 3 * HZ,
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};
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static struct platform_device n516_i2c_device = {
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.name = "i2c-gpio",
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.id = -1,
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.dev = {
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.platform_data = &n516_i2c_pdata,
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},
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};
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static const struct i2c_board_info n516_i2c_board_info[] = {
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{
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.type = "LPC524",
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.addr = 0x54,
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},
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{
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.type = "lm75a",
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.addr = 0x48,
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}
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};
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static struct jz4740_mmc_platform_data n516_mmc_pdata = {
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.gpio_card_detect = GPIO_SD_CD_N,
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.card_detect_active_low = 1,
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.gpio_read_only = -1,
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.gpio_power = GPIO_SD_VCC_EN_N,
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.power_active_low = 1,
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};
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static struct gpio_led n516_leds[] = {
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{
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.name = "n516:blue:power",
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.gpio = GPIO_LED_ENABLE,
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.default_state = LEDS_GPIO_DEFSTATE_ON,
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.default_trigger = "nand-disk",
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}
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};
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static struct gpio_led_platform_data n516_leds_pdata = {
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.leds = n516_leds,
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.num_leds = ARRAY_SIZE(n516_leds),
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};
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static struct platform_device n516_leds_device = {
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.name = "leds-gpio",
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.id = -1,
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.dev = {
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.platform_data = &n516_leds_pdata,
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},
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};
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static struct mtd_partition n516_partitions[] = {
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{ .name = "NAND BOOT partition",
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.offset = 0 * 0x100000,
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.size = 4 * 0x100000,
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},
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{ .name = "NAND KERNEL partition",
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.offset = 4 * 0x100000,
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.size = 4 * 0x100000,
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},
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{ .name = "NAND ROOTFS partition",
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.offset = 8 * 0x100000,
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.size = 504 * 0x100000,
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},
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};
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static struct nand_ecclayout n516_ecclayout = {
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.eccbytes = 36,
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.eccpos = {
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6, 7, 8, 9, 10, 11, 12, 13, 14,
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15, 16, 17, 18, 19, 20, 21, 22, 23,
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24, 25, 26, 27, 28, 29, 30, 31, 32,
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33, 34, 35, 36, 37, 38, 39, 40, 41,
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},
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.oobfree = {
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{.offset = 2,
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.length = 4},
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{.offset = 42,
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.length = 22}}
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};
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static struct jz_nand_platform_data n516_nand_pdata = {
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.ecc_layout = &n516_ecclayout,
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.partitions = n516_partitions,
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.num_partitions = ARRAY_SIZE(n516_partitions),
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.busy_gpio = 94,
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};
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static char *n516_batteries[] = {
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"n516_battery",
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};
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static struct gpio_charger_platform_data n516_charger_pdata = {
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.name = "usb",
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.type = POWER_SUPPLY_TYPE_USB,
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.gpio = GPIO_USB_DETECT,
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.gpio_active_low = 1,
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.batteries = n516_batteries,
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.num_batteries = ARRAY_SIZE(n516_batteries),
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};
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static struct platform_device n516_charger_device = {
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.name = "gpio-charger",
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.dev = {
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.platform_data = &n516_charger_pdata,
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},
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};
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static struct platform_device *n516_devices[] __initdata = {
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&jz4740_nand_device,
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&n516_leds_device,
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&jz4740_mmc_device,
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&jz4740_i2s_device,
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&jz4740_codec_device,
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&jz4740_rtc_device,
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&jz4740_usb_gdt_device,
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&n516_i2c_device,
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&n516_charger_device,
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};
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struct jz4740_clock_board_data jz4740_clock_bdata = {
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.ext_rate = 12000000,
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.rtc_rate = 32768,
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};
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extern int jz_gpiolib_init(void);
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static int n516_setup_platform(void)
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{
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if (jz_gpiolib_init())
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panic("Failed to initalize jz gpio\n");
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jz4740_clock_init();
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board_gpio_setup();
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panic_blink = n516_panic_blink;
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i2c_register_board_info(0, n516_i2c_board_info, ARRAY_SIZE(n516_i2c_board_info));
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jz4740_mmc_device.dev.platform_data = &n516_mmc_pdata;
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jz4740_nand_device.dev.platform_data = &n516_nand_pdata;
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return platform_add_devices(n516_devices, ARRAY_SIZE(n516_devices));
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}
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arch_initcall(n516_setup_platform);
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