1 // SPDX-License-Identifier: GPL-2.0
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 #include <linux/kernel.h>
11 #include <linux/types.h>
12 #include <linux/interrupt.h>
13 #include <linux/list.h>
14 #include <linux/timer.h>
15 #include <linux/init.h>
16 #include <linux/gpio.h>
17 #include <linux/gpio/machine.h>
18 #include <linux/device.h>
19 #include <linux/platform_device.h>
20
21 #include <linux/mtd/mtd.h>
22 #include <linux/mtd/rawnand.h>
23 #include <linux/mtd/nand_ecc.h>
24 #include <linux/mtd/partitions.h>
25 #include <linux/io.h>
26
27 #include <asm/mach/arch.h>
28 #include <asm/mach/map.h>
29 #include <asm/mach/irq.h>
30
31 #include <asm/mach-types.h>
32 #include <asm/irq.h>
33
34 #include "regs-gpio.h"
35 #include "gpio-samsung.h"
36 #include <linux/platform_data/leds-s3c24xx.h>
37 #include <linux/platform_data/mtd-nand-s3c2410.h>
38
39 #include "gpio-cfg.h"
40 #include "devs.h"
41 #include "pm.h"
42
43 #include "common-smdk-s3c24xx.h"
44
45 /* LED devices */
46
47 static struct gpiod_lookup_table smdk_led4_gpio_table = {
48 .dev_id = "s3c24xx_led.0",
49 .table = {
50 GPIO_LOOKUP("GPF", 4, NULL, GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN),
51 { },
52 },
53 };
54
55 static struct gpiod_lookup_table smdk_led5_gpio_table = {
56 .dev_id = "s3c24xx_led.1",
57 .table = {
58 GPIO_LOOKUP("GPF", 5, NULL, GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN),
59 { },
60 },
61 };
62
63 static struct gpiod_lookup_table smdk_led6_gpio_table = {
64 .dev_id = "s3c24xx_led.2",
65 .table = {
66 GPIO_LOOKUP("GPF", 6, NULL, GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN),
67 { },
68 },
69 };
70
71 static struct gpiod_lookup_table smdk_led7_gpio_table = {
72 .dev_id = "s3c24xx_led.3",
73 .table = {
74 GPIO_LOOKUP("GPF", 7, NULL, GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN),
75 { },
76 },
77 };
78
79 static struct s3c24xx_led_platdata smdk_pdata_led4 = {
80 .name = "led4",
81 .def_trigger = "timer",
82 };
83
84 static struct s3c24xx_led_platdata smdk_pdata_led5 = {
85 .name = "led5",
86 .def_trigger = "nand-disk",
87 };
88
89 static struct s3c24xx_led_platdata smdk_pdata_led6 = {
90 .name = "led6",
91 };
92
93 static struct s3c24xx_led_platdata smdk_pdata_led7 = {
94 .name = "led7",
95 };
96
97 static struct platform_device smdk_led4 = {
98 .name = "s3c24xx_led",
99 .id = 0,
100 .dev = {
101 .platform_data = &smdk_pdata_led4,
102 },
103 };
104
105 static struct platform_device smdk_led5 = {
106 .name = "s3c24xx_led",
107 .id = 1,
108 .dev = {
109 .platform_data = &smdk_pdata_led5,
110 },
111 };
112
113 static struct platform_device smdk_led6 = {
114 .name = "s3c24xx_led",
115 .id = 2,
116 .dev = {
117 .platform_data = &smdk_pdata_led6,
118 },
119 };
120
121 static struct platform_device smdk_led7 = {
122 .name = "s3c24xx_led",
123 .id = 3,
124 .dev = {
125 .platform_data = &smdk_pdata_led7,
126 },
127 };
128
129 /* NAND parititon from 2.4.18-swl5 */
130
131 static struct mtd_partition smdk_default_nand_part[] = {
132 [0] = {
133 .name = "Boot Agent",
134 .size = SZ_16K,
135 .offset = 0,
136 },
137 [1] = {
138 .name = "S3C2410 flash partition 1",
139 .offset = 0,
140 .size = SZ_2M,
141 },
142 [2] = {
143 .name = "S3C2410 flash partition 2",
144 .offset = SZ_4M,
145 .size = SZ_4M,
146 },
147 [3] = {
148 .name = "S3C2410 flash partition 3",
149 .offset = SZ_8M,
150 .size = SZ_2M,
151 },
152 [4] = {
153 .name = "S3C2410 flash partition 4",
154 .offset = SZ_1M * 10,
155 .size = SZ_4M,
156 },
157 [5] = {
158 .name = "S3C2410 flash partition 5",
159 .offset = SZ_1M * 14,
160 .size = SZ_1M * 10,
161 },
162 [6] = {
163 .name = "S3C2410 flash partition 6",
164 .offset = SZ_1M * 24,
165 .size = SZ_1M * 24,
166 },
167 [7] = {
168 .name = "S3C2410 flash partition 7",
169 .offset = SZ_1M * 48,
170 .size = MTDPART_SIZ_FULL,
171 }
172 };
173
174 static struct s3c2410_nand_set smdk_nand_sets[] = {
175 [0] = {
176 .name = "NAND",
177 .nr_chips = 1,
178 .nr_partitions = ARRAY_SIZE(smdk_default_nand_part),
179 .partitions = smdk_default_nand_part,
180 },
181 };
182
183 /* choose a set of timings which should suit most 512Mbit
184 * chips and beyond.
185 */
186
187 static struct s3c2410_platform_nand smdk_nand_info = {
188 .tacls = 20,
189 .twrph0 = 60,
190 .twrph1 = 20,
191 .nr_sets = ARRAY_SIZE(smdk_nand_sets),
192 .sets = smdk_nand_sets,
193 .engine_type = NAND_ECC_ENGINE_TYPE_SOFT,
194 };
195
196 /* devices we initialise */
197
198 static struct platform_device __initdata *smdk_devs[] = {
199 &s3c_device_nand,
200 &smdk_led4,
201 &smdk_led5,
202 &smdk_led6,
203 &smdk_led7,
204 };
205
smdk_machine_init(void)206 void __init smdk_machine_init(void)
207 {
208 if (machine_is_smdk2443())
209 smdk_nand_info.twrph0 = 50;
210
211 s3c_nand_set_platdata(&smdk_nand_info);
212
213 /* Disable pull-up on the LED lines */
214 s3c_gpio_setpull(S3C2410_GPF(4), S3C_GPIO_PULL_NONE);
215 s3c_gpio_setpull(S3C2410_GPF(5), S3C_GPIO_PULL_NONE);
216 s3c_gpio_setpull(S3C2410_GPF(6), S3C_GPIO_PULL_NONE);
217 s3c_gpio_setpull(S3C2410_GPF(7), S3C_GPIO_PULL_NONE);
218
219 /* Add lookups for the lines */
220 gpiod_add_lookup_table(&smdk_led4_gpio_table);
221 gpiod_add_lookup_table(&smdk_led5_gpio_table);
222 gpiod_add_lookup_table(&smdk_led6_gpio_table);
223 gpiod_add_lookup_table(&smdk_led7_gpio_table);
224
225 platform_add_devices(smdk_devs, ARRAY_SIZE(smdk_devs));
226
227 s3c_pm_init();
228 }
229