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/sysdev.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/leds-gpio.h>
 41
 42#include <plat/nand.h>
 43
 44#include <plat/common-smdk.h>
 45#include <plat/gpio-cfg.h>
 46#include <plat/devs.h>
 47#include <plat/pm.h>
 48
 49/* LED devices */
 50
 51static struct s3c24xx_led_platdata smdk_pdata_led4 = {
 52	.gpio		= S3C2410_GPF(4),
 53	.flags		= S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
 54	.name		= "led4",
 55	.def_trigger	= "timer",
 56};
 57
 58static struct s3c24xx_led_platdata smdk_pdata_led5 = {
 59	.gpio		= S3C2410_GPF(5),
 60	.flags		= S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
 61	.name		= "led5",
 62	.def_trigger	= "nand-disk",
 63};
 64
 65static struct s3c24xx_led_platdata smdk_pdata_led6 = {
 66	.gpio		= S3C2410_GPF(6),
 67	.flags		= S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
 68	.name		= "led6",
 69};
 70
 71static struct s3c24xx_led_platdata smdk_pdata_led7 = {
 72	.gpio		= S3C2410_GPF(7),
 73	.flags		= S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
 74	.name		= "led7",
 75};
 76
 77static struct platform_device smdk_led4 = {
 78	.name		= "s3c24xx_led",
 79	.id		= 0,
 80	.dev		= {
 81		.platform_data = &smdk_pdata_led4,
 82	},
 83};
 84
 85static struct platform_device smdk_led5 = {
 86	.name		= "s3c24xx_led",
 87	.id		= 1,
 88	.dev		= {
 89		.platform_data = &smdk_pdata_led5,
 90	},
 91};
 92
 93static struct platform_device smdk_led6 = {
 94	.name		= "s3c24xx_led",
 95	.id		= 2,
 96	.dev		= {
 97		.platform_data = &smdk_pdata_led6,
 98	},
 99};
100
101static struct platform_device smdk_led7 = {
102	.name		= "s3c24xx_led",
103	.id		= 3,
104	.dev		= {
105		.platform_data = &smdk_pdata_led7,
106	},
107};
108
109/* NAND parititon from 2.4.18-swl5 */
110
111static struct mtd_partition smdk_default_nand_part[] = {
112	[0] = {
113		.name	= "Boot Agent",
114		.size	= SZ_16K,
115		.offset	= 0,
116	},
117	[1] = {
118		.name	= "S3C2410 flash partition 1",
119		.offset = 0,
120		.size	= SZ_2M,
121	},
122	[2] = {
123		.name	= "S3C2410 flash partition 2",
124		.offset = SZ_4M,
125		.size	= SZ_4M,
126	},
127	[3] = {
128		.name	= "S3C2410 flash partition 3",
129		.offset	= SZ_8M,
130		.size	= SZ_2M,
131	},
132	[4] = {
133		.name	= "S3C2410 flash partition 4",
134		.offset = SZ_1M * 10,
135		.size	= SZ_4M,
136	},
137	[5] = {
138		.name	= "S3C2410 flash partition 5",
139		.offset	= SZ_1M * 14,
140		.size	= SZ_1M * 10,
141	},
142	[6] = {
143		.name	= "S3C2410 flash partition 6",
144		.offset	= SZ_1M * 24,
145		.size	= SZ_1M * 24,
146	},
147	[7] = {
148		.name	= "S3C2410 flash partition 7",
149		.offset = SZ_1M * 48,
150		.size	= MTDPART_SIZ_FULL,
151	}
152};
153
154static struct s3c2410_nand_set smdk_nand_sets[] = {
155	[0] = {
156		.name		= "NAND",
157		.nr_chips	= 1,
158		.nr_partitions	= ARRAY_SIZE(smdk_default_nand_part),
159		.partitions	= smdk_default_nand_part,
160	},
161};
162
163/* choose a set of timings which should suit most 512Mbit
164 * chips and beyond.
165*/
166
167static struct s3c2410_platform_nand smdk_nand_info = {
168	.tacls		= 20,
169	.twrph0		= 60,
170	.twrph1		= 20,
171	.nr_sets	= ARRAY_SIZE(smdk_nand_sets),
172	.sets		= smdk_nand_sets,
173};
174
175/* devices we initialise */
176
177static struct platform_device __initdata *smdk_devs[] = {
178	&s3c_device_nand,
179	&smdk_led4,
180	&smdk_led5,
181	&smdk_led6,
182	&smdk_led7,
183};
184
185void __init smdk_machine_init(void)
186{
187	/* Configure the LEDs (even if we have no LED support)*/
188
189	s3c_gpio_cfgpin(S3C2410_GPF(4), S3C2410_GPIO_OUTPUT);
190	s3c_gpio_cfgpin(S3C2410_GPF(5), S3C2410_GPIO_OUTPUT);
191	s3c_gpio_cfgpin(S3C2410_GPF(6), S3C2410_GPIO_OUTPUT);
192	s3c_gpio_cfgpin(S3C2410_GPF(7), S3C2410_GPIO_OUTPUT);
193
194	s3c2410_gpio_setpin(S3C2410_GPF(4), 1);
195	s3c2410_gpio_setpin(S3C2410_GPF(5), 1);
196	s3c2410_gpio_setpin(S3C2410_GPF(6), 1);
197	s3c2410_gpio_setpin(S3C2410_GPF(7), 1);
198
199	if (machine_is_smdk2443())
200		smdk_nand_info.twrph0 = 50;
201
202	s3c_nand_set_platdata(&smdk_nand_info);
203
204	platform_add_devices(smdk_devs, ARRAY_SIZE(smdk_devs));
205
206	s3c_pm_init();
207}