Merge branch 'for-linus-3.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git...
[linux-3.10.git] / arch / arm / mach-s3c24xx / common-smdk.c
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
185 static const struct gpio smdk_led_gpios[] = {
186         { S3C2410_GPF(4), GPIOF_OUT_INIT_HIGH, NULL },
187         { S3C2410_GPF(5), GPIOF_OUT_INIT_HIGH, NULL },
188         { S3C2410_GPF(6), GPIOF_OUT_INIT_HIGH, NULL },
189         { S3C2410_GPF(7), GPIOF_OUT_INIT_HIGH, NULL },
190 };
191
192 void __init smdk_machine_init(void)
193 {
194         /* Configure the LEDs (even if we have no LED support)*/
195
196         int ret = gpio_request_array(smdk_led_gpios,
197                                      ARRAY_SIZE(smdk_led_gpios));
198         if (!WARN_ON(ret < 0))
199                 gpio_free_array(smdk_led_gpios, ARRAY_SIZE(smdk_led_gpios));
200
201         if (machine_is_smdk2443())
202                 smdk_nand_info.twrph0 = 50;
203
204         s3c_nand_set_platdata(&smdk_nand_info);
205
206         platform_add_devices(smdk_devs, ARRAY_SIZE(smdk_devs));
207
208         s3c_pm_init();
209 }