1// SPDX-License-Identifier: GPL-2.0
  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#include <linux/kernel.h>
 11#include <linux/types.h>
 12#include <linux/interrupt.h>
 13#include <linux/list.h>
 14#include <linux/timer.h>
 15#include <linux/init.h>
 16#include <linux/gpio.h>
 17#include <linux/gpio/machine.h>
 18#include <linux/device.h>
 19#include <linux/platform_device.h>
 20
 21#include <linux/mtd/mtd.h>
 22#include <linux/mtd/rawnand.h>
 23#include <linux/mtd/nand-ecc-sw-hamming.h>
 24#include <linux/mtd/partitions.h>
 25#include <linux/io.h>
 26
 27#include <asm/mach/arch.h>
 28#include <asm/mach/map.h>
 29#include <asm/mach/irq.h>
 30
 31#include <asm/mach-types.h>
 32#include <asm/irq.h>
 33
 34#include "regs-gpio.h"
 35#include "gpio-samsung.h"
 36#include <linux/platform_data/leds-s3c24xx.h>
 37#include <linux/platform_data/mtd-nand-s3c2410.h>
 38
 39#include "gpio-cfg.h"
 40#include "devs.h"
 41#include "pm.h"
 42
 43#include "common-smdk-s3c24xx.h"
 44
 45/* LED devices */
 46
 47static struct gpiod_lookup_table smdk_led4_gpio_table = {
 48	.dev_id = "s3c24xx_led.0",
 49	.table = {
 50		GPIO_LOOKUP("GPF", 4, NULL, GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN),
 51		{ },
 52	},
 53};
 54
 55static struct gpiod_lookup_table smdk_led5_gpio_table = {
 56	.dev_id = "s3c24xx_led.1",
 57	.table = {
 58		GPIO_LOOKUP("GPF", 5, NULL, GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN),
 59		{ },
 60	},
 61};
 62
 63static struct gpiod_lookup_table smdk_led6_gpio_table = {
 64	.dev_id = "s3c24xx_led.2",
 65	.table = {
 66		GPIO_LOOKUP("GPF", 6, NULL, GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN),
 67		{ },
 68	},
 69};
 70
 71static struct gpiod_lookup_table smdk_led7_gpio_table = {
 72	.dev_id = "s3c24xx_led.3",
 73	.table = {
 74		GPIO_LOOKUP("GPF", 7, NULL, GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN),
 75		{ },
 76	},
 77};
 78
 79static struct s3c24xx_led_platdata smdk_pdata_led4 = {
 80	.name		= "led4",
 81	.def_trigger	= "timer",
 82};
 83
 84static struct s3c24xx_led_platdata smdk_pdata_led5 = {
 85	.name		= "led5",
 86	.def_trigger	= "nand-disk",
 87};
 88
 89static struct s3c24xx_led_platdata smdk_pdata_led6 = {
 90	.name		= "led6",
 91};
 92
 93static struct s3c24xx_led_platdata smdk_pdata_led7 = {
 94	.name		= "led7",
 95};
 96
 97static struct platform_device smdk_led4 = {
 98	.name		= "s3c24xx_led",
 99	.id		= 0,
100	.dev		= {
101		.platform_data = &smdk_pdata_led4,
102	},
103};
104
105static struct platform_device smdk_led5 = {
106	.name		= "s3c24xx_led",
107	.id		= 1,
108	.dev		= {
109		.platform_data = &smdk_pdata_led5,
110	},
111};
112
113static struct platform_device smdk_led6 = {
114	.name		= "s3c24xx_led",
115	.id		= 2,
116	.dev		= {
117		.platform_data = &smdk_pdata_led6,
118	},
119};
120
121static struct platform_device smdk_led7 = {
122	.name		= "s3c24xx_led",
123	.id		= 3,
124	.dev		= {
125		.platform_data = &smdk_pdata_led7,
126	},
127};
128
129/* NAND parititon from 2.4.18-swl5 */
130
131static struct mtd_partition smdk_default_nand_part[] = {
132	[0] = {
133		.name	= "Boot Agent",
134		.size	= SZ_16K,
135		.offset	= 0,
136	},
137	[1] = {
138		.name	= "S3C2410 flash partition 1",
139		.offset = 0,
140		.size	= SZ_2M,
141	},
142	[2] = {
143		.name	= "S3C2410 flash partition 2",
144		.offset = SZ_4M,
145		.size	= SZ_4M,
146	},
147	[3] = {
148		.name	= "S3C2410 flash partition 3",
149		.offset	= SZ_8M,
150		.size	= SZ_2M,
151	},
152	[4] = {
153		.name	= "S3C2410 flash partition 4",
154		.offset = SZ_1M * 10,
155		.size	= SZ_4M,
156	},
157	[5] = {
158		.name	= "S3C2410 flash partition 5",
159		.offset	= SZ_1M * 14,
160		.size	= SZ_1M * 10,
161	},
162	[6] = {
163		.name	= "S3C2410 flash partition 6",
164		.offset	= SZ_1M * 24,
165		.size	= SZ_1M * 24,
166	},
167	[7] = {
168		.name	= "S3C2410 flash partition 7",
169		.offset = SZ_1M * 48,
170		.size	= MTDPART_SIZ_FULL,
171	}
172};
173
174static struct s3c2410_nand_set smdk_nand_sets[] = {
175	[0] = {
176		.name		= "NAND",
177		.nr_chips	= 1,
178		.nr_partitions	= ARRAY_SIZE(smdk_default_nand_part),
179		.partitions	= smdk_default_nand_part,
180	},
181};
182
183/* choose a set of timings which should suit most 512Mbit
184 * chips and beyond.
185*/
186
187static struct s3c2410_platform_nand smdk_nand_info = {
188	.tacls		= 20,
189	.twrph0		= 60,
190	.twrph1		= 20,
191	.nr_sets	= ARRAY_SIZE(smdk_nand_sets),
192	.sets		= smdk_nand_sets,
193	.engine_type	= NAND_ECC_ENGINE_TYPE_SOFT,
194};
195
196/* devices we initialise */
197
198static struct platform_device __initdata *smdk_devs[] = {
199	&s3c_device_nand,
200	&smdk_led4,
201	&smdk_led5,
202	&smdk_led6,
203	&smdk_led7,
204};
205
206void __init smdk_machine_init(void)
207{
208	if (machine_is_smdk2443())
209		smdk_nand_info.twrph0 = 50;
210
211	s3c_nand_set_platdata(&smdk_nand_info);
212
213	/* Disable pull-up on the LED lines */
214	s3c_gpio_setpull(S3C2410_GPF(4), S3C_GPIO_PULL_NONE);
215	s3c_gpio_setpull(S3C2410_GPF(5), S3C_GPIO_PULL_NONE);
216	s3c_gpio_setpull(S3C2410_GPF(6), S3C_GPIO_PULL_NONE);
217	s3c_gpio_setpull(S3C2410_GPF(7), S3C_GPIO_PULL_NONE);
218
219	/* Add lookups for the lines */
220	gpiod_add_lookup_table(&smdk_led4_gpio_table);
221	gpiod_add_lookup_table(&smdk_led5_gpio_table);
222	gpiod_add_lookup_table(&smdk_led6_gpio_table);
223	gpiod_add_lookup_table(&smdk_led7_gpio_table);
224
225	platform_add_devices(smdk_devs, ARRAY_SIZE(smdk_devs));
226
227	s3c_pm_init();
228}