1/* linux/arch/arm/plat-s3c24xx/common-smdk.c
  2 *
  3 * Copyright (c) 2006 Simtec Electronics
  4 *	Ben Dooks <ben@simtec.co.uk>
  5 *
  6 * Common code for SMDK2410 and SMDK2440 boards
  7 *
  8 * http://www.fluff.org/ben/smdk2440/
  9 *
 10 * This program is free software; you can redistribute it and/or modify
 11 * it under the terms of the GNU General Public License version 2 as
 12 * published by the Free Software Foundation.
 13*/
 14
 15#include <linux/kernel.h>
 16#include <linux/types.h>
 17#include <linux/interrupt.h>
 18#include <linux/list.h>
 19#include <linux/timer.h>
 20#include <linux/init.h>
 21#include <linux/gpio.h>
 22#include <linux/device.h>
 23#include <linux/platform_device.h>
 24
 25#include <linux/mtd/mtd.h>
 26#include <linux/mtd/nand.h>
 27#include <linux/mtd/nand_ecc.h>
 28#include <linux/mtd/partitions.h>
 29#include <linux/io.h>
 30
 31#include <asm/mach/arch.h>
 32#include <asm/mach/map.h>
 33#include <asm/mach/irq.h>
 34
 35#include <asm/mach-types.h>
 36#include <mach/hardware.h>
 37#include <asm/irq.h>
 38
 39#include <mach/regs-gpio.h>
 40#include <mach/gpio-samsung.h>
 41#include <linux/platform_data/leds-s3c24xx.h>
 42#include <linux/platform_data/mtd-nand-s3c2410.h>
 43
 44#include <plat/gpio-cfg.h>
 45#include <plat/devs.h>
 46#include <plat/pm.h>
 47
 48#include "common-smdk.h"
 49
 50/* LED devices */
 51
 52static struct s3c24xx_led_platdata smdk_pdata_led4 = {
 53	.gpio		= S3C2410_GPF(4),
 54	.flags		= S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
 55	.name		= "led4",
 56	.def_trigger	= "timer",
 57};
 58
 59static struct s3c24xx_led_platdata smdk_pdata_led5 = {
 60	.gpio		= S3C2410_GPF(5),
 61	.flags		= S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
 62	.name		= "led5",
 63	.def_trigger	= "nand-disk",
 64};
 65
 66static struct s3c24xx_led_platdata smdk_pdata_led6 = {
 67	.gpio		= S3C2410_GPF(6),
 68	.flags		= S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
 69	.name		= "led6",
 70};
 71
 72static struct s3c24xx_led_platdata smdk_pdata_led7 = {
 73	.gpio		= S3C2410_GPF(7),
 74	.flags		= S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
 75	.name		= "led7",
 76};
 77
 78static struct platform_device smdk_led4 = {
 79	.name		= "s3c24xx_led",
 80	.id		= 0,
 81	.dev		= {
 82		.platform_data = &smdk_pdata_led4,
 83	},
 84};
 85
 86static struct platform_device smdk_led5 = {
 87	.name		= "s3c24xx_led",
 88	.id		= 1,
 89	.dev		= {
 90		.platform_data = &smdk_pdata_led5,
 91	},
 92};
 93
 94static struct platform_device smdk_led6 = {
 95	.name		= "s3c24xx_led",
 96	.id		= 2,
 97	.dev		= {
 98		.platform_data = &smdk_pdata_led6,
 99	},
100};
101
102static struct platform_device smdk_led7 = {
103	.name		= "s3c24xx_led",
104	.id		= 3,
105	.dev		= {
106		.platform_data = &smdk_pdata_led7,
107	},
108};
109
110/* NAND parititon from 2.4.18-swl5 */
111
112static struct mtd_partition smdk_default_nand_part[] = {
113	[0] = {
114		.name	= "Boot Agent",
115		.size	= SZ_16K,
116		.offset	= 0,
117	},
118	[1] = {
119		.name	= "S3C2410 flash partition 1",
120		.offset = 0,
121		.size	= SZ_2M,
122	},
123	[2] = {
124		.name	= "S3C2410 flash partition 2",
125		.offset = SZ_4M,
126		.size	= SZ_4M,
127	},
128	[3] = {
129		.name	= "S3C2410 flash partition 3",
130		.offset	= SZ_8M,
131		.size	= SZ_2M,
132	},
133	[4] = {
134		.name	= "S3C2410 flash partition 4",
135		.offset = SZ_1M * 10,
136		.size	= SZ_4M,
137	},
138	[5] = {
139		.name	= "S3C2410 flash partition 5",
140		.offset	= SZ_1M * 14,
141		.size	= SZ_1M * 10,
142	},
143	[6] = {
144		.name	= "S3C2410 flash partition 6",
145		.offset	= SZ_1M * 24,
146		.size	= SZ_1M * 24,
147	},
148	[7] = {
149		.name	= "S3C2410 flash partition 7",
150		.offset = SZ_1M * 48,
151		.size	= MTDPART_SIZ_FULL,
152	}
153};
154
155static struct s3c2410_nand_set smdk_nand_sets[] = {
156	[0] = {
157		.name		= "NAND",
158		.nr_chips	= 1,
159		.nr_partitions	= ARRAY_SIZE(smdk_default_nand_part),
160		.partitions	= smdk_default_nand_part,
161	},
162};
163
164/* choose a set of timings which should suit most 512Mbit
165 * chips and beyond.
166*/
167
168static struct s3c2410_platform_nand smdk_nand_info = {
169	.tacls		= 20,
170	.twrph0		= 60,
171	.twrph1		= 20,
172	.nr_sets	= ARRAY_SIZE(smdk_nand_sets),
173	.sets		= smdk_nand_sets,
174};
175
176/* devices we initialise */
177
178static struct platform_device __initdata *smdk_devs[] = {
179	&s3c_device_nand,
180	&smdk_led4,
181	&smdk_led5,
182	&smdk_led6,
183	&smdk_led7,
184};
185
186static const struct gpio smdk_led_gpios[] = {
187	{ S3C2410_GPF(4), GPIOF_OUT_INIT_HIGH, NULL },
188	{ S3C2410_GPF(5), GPIOF_OUT_INIT_HIGH, NULL },
189	{ S3C2410_GPF(6), GPIOF_OUT_INIT_HIGH, NULL },
190	{ S3C2410_GPF(7), GPIOF_OUT_INIT_HIGH, NULL },
191};
192
193void __init smdk_machine_init(void)
194{
195	/* Configure the LEDs (even if we have no LED support)*/
196
197	int ret = gpio_request_array(smdk_led_gpios,
198				     ARRAY_SIZE(smdk_led_gpios));
199	if (!WARN_ON(ret < 0))
200		gpio_free_array(smdk_led_gpios, ARRAY_SIZE(smdk_led_gpios));
201
202	if (machine_is_smdk2443())
203		smdk_nand_info.twrph0 = 50;
204
205	s3c_nand_set_platdata(&smdk_nand_info);
206
207	platform_add_devices(smdk_devs, ARRAY_SIZE(smdk_devs));
208
209	s3c_pm_init();
210}