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/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
51 static 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
58 static 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
65 static 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
71 static 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
77 static struct platform_device smdk_led4 = {
78 .name = "s3c24xx_led",
79 .id = 0,
80 .dev = {
81 .platform_data = &smdk_pdata_led4,
82 },
83 };
84
85 static struct platform_device smdk_led5 = {
86 .name = "s3c24xx_led",
87 .id = 1,
88 .dev = {
89 .platform_data = &smdk_pdata_led5,
90 },
91 };
92
93 static struct platform_device smdk_led6 = {
94 .name = "s3c24xx_led",
95 .id = 2,
96 .dev = {
97 .platform_data = &smdk_pdata_led6,
98 },
99 };
100
101 static 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
111 static 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
154 static 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
167 static 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
177 static struct platform_device __initdata *smdk_devs[] = {
178 &s3c_device_nand,
179 &smdk_led4,
180 &smdk_led5,
181 &smdk_led6,
182 &smdk_led7,
183 };
184
smdk_machine_init(void)185 void __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 }
208