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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/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 | 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 |
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