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
52 static 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
59 static 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
66 static 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
72 static 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
78 static struct platform_device smdk_led4 = {
79 .name = "s3c24xx_led",
80 .id = 0,
81 .dev = {
82 .platform_data = &smdk_pdata_led4,
83 },
84 };
85
86 static struct platform_device smdk_led5 = {
87 .name = "s3c24xx_led",
88 .id = 1,
89 .dev = {
90 .platform_data = &smdk_pdata_led5,
91 },
92 };
93
94 static struct platform_device smdk_led6 = {
95 .name = "s3c24xx_led",
96 .id = 2,
97 .dev = {
98 .platform_data = &smdk_pdata_led6,
99 },
100 };
101
102 static 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
112 static 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
155 static 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
168 static 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
178 static struct platform_device __initdata *smdk_devs[] = {
179 &s3c_device_nand,
180 &smdk_led4,
181 &smdk_led5,
182 &smdk_led6,
183 &smdk_led7,
184 };
185
186 static 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
smdk_machine_init(void)193 void __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 }
211