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/sysdev.h>
22 #include <linux/platform_device.h>
23
24 #include <linux/mtd/mtd.h>
25 #include <linux/mtd/nand.h>
26 #include <linux/mtd/nand_ecc.h>
27 #include <linux/mtd/partitions.h>
28 #include <linux/io.h>
29
30 #include <asm/mach/arch.h>
31 #include <asm/mach/map.h>
32 #include <asm/mach/irq.h>
33
34 #include <asm/mach-types.h>
35 #include <mach/hardware.h>
36 #include <asm/irq.h>
37
38 #include <mach/regs-gpio.h>
39 #include <mach/leds-gpio.h>
40
41 #include <plat/nand.h>
42
43 #include <plat/common-smdk.h>
44 #include <plat/devs.h>
45 #include <plat/pm.h>
46
47 /* LED devices */
48
49 static struct s3c24xx_led_platdata smdk_pdata_led4 = {
50 .gpio = S3C2410_GPF4,
51 .flags = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
52 .name = "led4",
53 .def_trigger = "timer",
54 };
55
56 static struct s3c24xx_led_platdata smdk_pdata_led5 = {
57 .gpio = S3C2410_GPF5,
58 .flags = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
59 .name = "led5",
60 .def_trigger = "nand-disk",
61 };
62
63 static struct s3c24xx_led_platdata smdk_pdata_led6 = {
64 .gpio = S3C2410_GPF6,
65 .flags = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
66 .name = "led6",
67 };
68
69 static struct s3c24xx_led_platdata smdk_pdata_led7 = {
70 .gpio = S3C2410_GPF7,
71 .flags = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
72 .name = "led7",
73 };
74
75 static struct platform_device smdk_led4 = {
76 .name = "s3c24xx_led",
77 .id = 0,
78 .dev = {
79 .platform_data = &smdk_pdata_led4,
80 },
81 };
82
83 static struct platform_device smdk_led5 = {
84 .name = "s3c24xx_led",
85 .id = 1,
86 .dev = {
87 .platform_data = &smdk_pdata_led5,
88 },
89 };
90
91 static struct platform_device smdk_led6 = {
92 .name = "s3c24xx_led",
93 .id = 2,
94 .dev = {
95 .platform_data = &smdk_pdata_led6,
96 },
97 };
98
99 static struct platform_device smdk_led7 = {
100 .name = "s3c24xx_led",
101 .id = 3,
102 .dev = {
103 .platform_data = &smdk_pdata_led7,
104 },
105 };
106
107 /* NAND parititon from 2.4.18-swl5 */
108
109 static struct mtd_partition smdk_default_nand_part[] = {
110 [0] = {
111 .name = "Boot Agent",
112 .size = SZ_16K,
113 .offset = 0,
114 },
115 [1] = {
116 .name = "S3C2410 flash partition 1",
117 .offset = 0,
118 .size = SZ_2M,
119 },
120 [2] = {
121 .name = "S3C2410 flash partition 2",
122 .offset = SZ_4M,
123 .size = SZ_4M,
124 },
125 [3] = {
126 .name = "S3C2410 flash partition 3",
127 .offset = SZ_8M,
128 .size = SZ_2M,
129 },
130 [4] = {
131 .name = "S3C2410 flash partition 4",
132 .offset = SZ_1M * 10,
133 .size = SZ_4M,
134 },
135 [5] = {
136 .name = "S3C2410 flash partition 5",
137 .offset = SZ_1M * 14,
138 .size = SZ_1M * 10,
139 },
140 [6] = {
141 .name = "S3C2410 flash partition 6",
142 .offset = SZ_1M * 24,
143 .size = SZ_1M * 24,
144 },
145 [7] = {
146 .name = "S3C2410 flash partition 7",
147 .offset = SZ_1M * 48,
148 .size = SZ_16M,
149 }
150 };
151
152 static struct s3c2410_nand_set smdk_nand_sets[] = {
153 [0] = {
154 .name = "NAND",
155 .nr_chips = 1,
156 .nr_partitions = ARRAY_SIZE(smdk_default_nand_part),
157 .partitions = smdk_default_nand_part,
158 },
159 };
160
161 /* choose a set of timings which should suit most 512Mbit
162 * chips and beyond.
163 */
164
165 static struct s3c2410_platform_nand smdk_nand_info = {
166 .tacls = 20,
167 .twrph0 = 60,
168 .twrph1 = 20,
169 .nr_sets = ARRAY_SIZE(smdk_nand_sets),
170 .sets = smdk_nand_sets,
171 };
172
173 /* devices we initialise */
174
175 static struct platform_device __initdata *smdk_devs[] = {
176 &s3c_device_nand,
177 &smdk_led4,
178 &smdk_led5,
179 &smdk_led6,
180 &smdk_led7,
181 };
182
smdk_machine_init(void)183 void __init smdk_machine_init(void)
184 {
185 /* Configure the LEDs (even if we have no LED support)*/
186
187 s3c2410_gpio_cfgpin(S3C2410_GPF4, S3C2410_GPF4_OUTP);
188 s3c2410_gpio_cfgpin(S3C2410_GPF5, S3C2410_GPF5_OUTP);
189 s3c2410_gpio_cfgpin(S3C2410_GPF6, S3C2410_GPF6_OUTP);
190 s3c2410_gpio_cfgpin(S3C2410_GPF7, S3C2410_GPF7_OUTP);
191
192 s3c2410_gpio_setpin(S3C2410_GPF4, 1);
193 s3c2410_gpio_setpin(S3C2410_GPF5, 1);
194 s3c2410_gpio_setpin(S3C2410_GPF6, 1);
195 s3c2410_gpio_setpin(S3C2410_GPF7, 1);
196
197 if (machine_is_smdk2443())
198 smdk_nand_info.twrph0 = 50;
199
200 s3c_device_nand.dev.platform_data = &smdk_nand_info;
201
202 platform_add_devices(smdk_devs, ARRAY_SIZE(smdk_devs));
203
204 s3c2410_pm_init();
205 }
206