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/devs.h>
46 #include <plat/pm.h>
47
48 /* LED devices */
49
50 static struct s3c24xx_led_platdata smdk_pdata_led4 = {
51 .gpio = S3C2410_GPF(4),
52 .flags = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
53 .name = "led4",
54 .def_trigger = "timer",
55 };
56
57 static struct s3c24xx_led_platdata smdk_pdata_led5 = {
58 .gpio = S3C2410_GPF(5),
59 .flags = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
60 .name = "led5",
61 .def_trigger = "nand-disk",
62 };
63
64 static struct s3c24xx_led_platdata smdk_pdata_led6 = {
65 .gpio = S3C2410_GPF(6),
66 .flags = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
67 .name = "led6",
68 };
69
70 static struct s3c24xx_led_platdata smdk_pdata_led7 = {
71 .gpio = S3C2410_GPF(7),
72 .flags = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
73 .name = "led7",
74 };
75
76 static struct platform_device smdk_led4 = {
77 .name = "s3c24xx_led",
78 .id = 0,
79 .dev = {
80 .platform_data = &smdk_pdata_led4,
81 },
82 };
83
84 static struct platform_device smdk_led5 = {
85 .name = "s3c24xx_led",
86 .id = 1,
87 .dev = {
88 .platform_data = &smdk_pdata_led5,
89 },
90 };
91
92 static struct platform_device smdk_led6 = {
93 .name = "s3c24xx_led",
94 .id = 2,
95 .dev = {
96 .platform_data = &smdk_pdata_led6,
97 },
98 };
99
100 static struct platform_device smdk_led7 = {
101 .name = "s3c24xx_led",
102 .id = 3,
103 .dev = {
104 .platform_data = &smdk_pdata_led7,
105 },
106 };
107
108 /* NAND parititon from 2.4.18-swl5 */
109
110 static struct mtd_partition smdk_default_nand_part[] = {
111 [0] = {
112 .name = "Boot Agent",
113 .size = SZ_16K,
114 .offset = 0,
115 },
116 [1] = {
117 .name = "S3C2410 flash partition 1",
118 .offset = 0,
119 .size = SZ_2M,
120 },
121 [2] = {
122 .name = "S3C2410 flash partition 2",
123 .offset = SZ_4M,
124 .size = SZ_4M,
125 },
126 [3] = {
127 .name = "S3C2410 flash partition 3",
128 .offset = SZ_8M,
129 .size = SZ_2M,
130 },
131 [4] = {
132 .name = "S3C2410 flash partition 4",
133 .offset = SZ_1M * 10,
134 .size = SZ_4M,
135 },
136 [5] = {
137 .name = "S3C2410 flash partition 5",
138 .offset = SZ_1M * 14,
139 .size = SZ_1M * 10,
140 },
141 [6] = {
142 .name = "S3C2410 flash partition 6",
143 .offset = SZ_1M * 24,
144 .size = SZ_1M * 24,
145 },
146 [7] = {
147 .name = "S3C2410 flash partition 7",
148 .offset = SZ_1M * 48,
149 .size = SZ_16M,
150 }
151 };
152
153 static struct s3c2410_nand_set smdk_nand_sets[] = {
154 [0] = {
155 .name = "NAND",
156 .nr_chips = 1,
157 .nr_partitions = ARRAY_SIZE(smdk_default_nand_part),
158 .partitions = smdk_default_nand_part,
159 },
160 };
161
162 /* choose a set of timings which should suit most 512Mbit
163 * chips and beyond.
164 */
165
166 static struct s3c2410_platform_nand smdk_nand_info = {
167 .tacls = 20,
168 .twrph0 = 60,
169 .twrph1 = 20,
170 .nr_sets = ARRAY_SIZE(smdk_nand_sets),
171 .sets = smdk_nand_sets,
172 };
173
174 /* devices we initialise */
175
176 static struct platform_device __initdata *smdk_devs[] = {
177 &s3c_device_nand,
178 &smdk_led4,
179 &smdk_led5,
180 &smdk_led6,
181 &smdk_led7,
182 };
183
184 void __init smdk_machine_init(void)
185 {
186 /* Configure the LEDs (even if we have no LED support)*/
187
188 s3c2410_gpio_cfgpin(S3C2410_GPF(4), S3C2410_GPIO_OUTPUT);
189 s3c2410_gpio_cfgpin(S3C2410_GPF(5), S3C2410_GPIO_OUTPUT);
190 s3c2410_gpio_cfgpin(S3C2410_GPF(6), S3C2410_GPIO_OUTPUT);
191 s3c2410_gpio_cfgpin(S3C2410_GPF(7), S3C2410_GPIO_OUTPUT);
192
193 s3c2410_gpio_setpin(S3C2410_GPF(4), 1);
194 s3c2410_gpio_setpin(S3C2410_GPF(5), 1);
195 s3c2410_gpio_setpin(S3C2410_GPF(6), 1);
196 s3c2410_gpio_setpin(S3C2410_GPF(7), 1);
197
198 if (machine_is_smdk2443())
199 smdk_nand_info.twrph0 = 50;
200
201 s3c_device_nand.dev.platform_data = &smdk_nand_info;
202
203 platform_add_devices(smdk_devs, ARRAY_SIZE(smdk_devs));
204
205 s3c_pm_init();
206 }
207
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