1 /*
2 * linux/arch/arm/mach-exynos4/mach-smdk4x12.c
3 *
4 * Copyright (c) 2011 Samsung Electronics Co., Ltd.
5 * http://www.samsung.com
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11
12 #include <linux/gpio.h>
13 #include <linux/i2c.h>
14 #include <linux/input.h>
15 #include <linux/io.h>
16 #include <linux/mfd/max8997.h>
17 #include <linux/mmc/host.h>
18 #include <linux/platform_device.h>
19 #include <linux/pwm_backlight.h>
20 #include <linux/regulator/machine.h>
21 #include <linux/serial_core.h>
22
23 #include <asm/mach/arch.h>
24 #include <asm/hardware/gic.h>
25 #include <asm/mach-types.h>
26
27 #include <plat/backlight.h>
28 #include <plat/clock.h>
29 #include <plat/cpu.h>
30 #include <plat/devs.h>
31 #include <plat/gpio-cfg.h>
32 #include <plat/iic.h>
33 #include <plat/keypad.h>
34 #include <plat/regs-serial.h>
35 #include <plat/sdhci.h>
36
37 #include <mach/map.h>
38
39 #include "common.h"
40
41 /* Following are default values for UCON, ULCON and UFCON UART registers */
42 #define SMDK4X12_UCON_DEFAULT (S3C2410_UCON_TXILEVEL | \
43 S3C2410_UCON_RXILEVEL | \
44 S3C2410_UCON_TXIRQMODE | \
45 S3C2410_UCON_RXIRQMODE | \
46 S3C2410_UCON_RXFIFO_TOI | \
47 S3C2443_UCON_RXERR_IRQEN)
48
49 #define SMDK4X12_ULCON_DEFAULT S3C2410_LCON_CS8
50
51 #define SMDK4X12_UFCON_DEFAULT (S3C2410_UFCON_FIFOMODE | \
52 S5PV210_UFCON_TXTRIG4 | \
53 S5PV210_UFCON_RXTRIG4)
54
55 static struct s3c2410_uartcfg smdk4x12_uartcfgs[] __initdata = {
56 [0] = {
57 .hwport = 0,
58 .flags = 0,
59 .ucon = SMDK4X12_UCON_DEFAULT,
60 .ulcon = SMDK4X12_ULCON_DEFAULT,
61 .ufcon = SMDK4X12_UFCON_DEFAULT,
62 },
63 [1] = {
64 .hwport = 1,
65 .flags = 0,
66 .ucon = SMDK4X12_UCON_DEFAULT,
67 .ulcon = SMDK4X12_ULCON_DEFAULT,
68 .ufcon = SMDK4X12_UFCON_DEFAULT,
69 },
70 [2] = {
71 .hwport = 2,
72 .flags = 0,
73 .ucon = SMDK4X12_UCON_DEFAULT,
74 .ulcon = SMDK4X12_ULCON_DEFAULT,
75 .ufcon = SMDK4X12_UFCON_DEFAULT,
76 },
77 [3] = {
78 .hwport = 3,
79 .flags = 0,
80 .ucon = SMDK4X12_UCON_DEFAULT,
81 .ulcon = SMDK4X12_ULCON_DEFAULT,
82 .ufcon = SMDK4X12_UFCON_DEFAULT,
83 },
84 };
85
86 static struct s3c_sdhci_platdata smdk4x12_hsmmc2_pdata __initdata = {
87 .cd_type = S3C_SDHCI_CD_INTERNAL,
88 .clk_type = S3C_SDHCI_CLK_DIV_EXTERNAL,
89 #ifdef CONFIG_EXYNOS4_SDHCI_CH2_8BIT
90 .max_width = 8,
91 .host_caps = MMC_CAP_8_BIT_DATA,
92 #endif
93 };
94
95 static struct s3c_sdhci_platdata smdk4x12_hsmmc3_pdata __initdata = {
96 .cd_type = S3C_SDHCI_CD_INTERNAL,
97 .clk_type = S3C_SDHCI_CLK_DIV_EXTERNAL,
98 };
99
100 static struct regulator_consumer_supply max8997_buck1 =
101 REGULATOR_SUPPLY("vdd_arm", NULL);
102
103 static struct regulator_consumer_supply max8997_buck2 =
104 REGULATOR_SUPPLY("vdd_int", NULL);
105
106 static struct regulator_consumer_supply max8997_buck3 =
107 REGULATOR_SUPPLY("vdd_g3d", NULL);
108
109 static struct regulator_init_data max8997_buck1_data = {
110 .constraints = {
111 .name = "VDD_ARM_SMDK4X12",
112 .min_uV = 925000,
113 .max_uV = 1350000,
114 .always_on = 1,
115 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
116 .state_mem = {
117 .disabled = 1,
118 },
119 },
120 .num_consumer_supplies = 1,
121 .consumer_supplies = &max8997_buck1,
122 };
123
124 static struct regulator_init_data max8997_buck2_data = {
125 .constraints = {
126 .name = "VDD_INT_SMDK4X12",
127 .min_uV = 950000,
128 .max_uV = 1150000,
129 .always_on = 1,
130 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
131 .state_mem = {
132 .disabled = 1,
133 },
134 },
135 .num_consumer_supplies = 1,
136 .consumer_supplies = &max8997_buck2,
137 };
138
139 static struct regulator_init_data max8997_buck3_data = {
140 .constraints = {
141 .name = "VDD_G3D_SMDK4X12",
142 .min_uV = 950000,
143 .max_uV = 1150000,
144 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
145 REGULATOR_CHANGE_STATUS,
146 .state_mem = {
147 .disabled = 1,
148 },
149 },
150 .num_consumer_supplies = 1,
151 .consumer_supplies = &max8997_buck3,
152 };
153
154 static struct max8997_regulator_data smdk4x12_max8997_regulators[] = {
155 { MAX8997_BUCK1, &max8997_buck1_data },
156 { MAX8997_BUCK2, &max8997_buck2_data },
157 { MAX8997_BUCK3, &max8997_buck3_data },
158 };
159
160 static struct max8997_platform_data smdk4x12_max8997_pdata = {
161 .num_regulators = ARRAY_SIZE(smdk4x12_max8997_regulators),
162 .regulators = smdk4x12_max8997_regulators,
163
164 .buck1_voltage[0] = 1100000, /* 1.1V */
165 .buck1_voltage[1] = 1100000, /* 1.1V */
166 .buck1_voltage[2] = 1100000, /* 1.1V */
167 .buck1_voltage[3] = 1100000, /* 1.1V */
168 .buck1_voltage[4] = 1100000, /* 1.1V */
169 .buck1_voltage[5] = 1100000, /* 1.1V */
170 .buck1_voltage[6] = 1000000, /* 1.0V */
171 .buck1_voltage[7] = 950000, /* 0.95V */
172
173 .buck2_voltage[0] = 1100000, /* 1.1V */
174 .buck2_voltage[1] = 1000000, /* 1.0V */
175 .buck2_voltage[2] = 950000, /* 0.95V */
176 .buck2_voltage[3] = 900000, /* 0.9V */
177 .buck2_voltage[4] = 1100000, /* 1.1V */
178 .buck2_voltage[5] = 1000000, /* 1.0V */
179 .buck2_voltage[6] = 950000, /* 0.95V */
180 .buck2_voltage[7] = 900000, /* 0.9V */
181
182 .buck5_voltage[0] = 1100000, /* 1.1V */
183 .buck5_voltage[1] = 1100000, /* 1.1V */
184 .buck5_voltage[2] = 1100000, /* 1.1V */
185 .buck5_voltage[3] = 1100000, /* 1.1V */
186 .buck5_voltage[4] = 1100000, /* 1.1V */
187 .buck5_voltage[5] = 1100000, /* 1.1V */
188 .buck5_voltage[6] = 1100000, /* 1.1V */
189 .buck5_voltage[7] = 1100000, /* 1.1V */
190 };
191
192 static struct i2c_board_info smdk4x12_i2c_devs0[] __initdata = {
193 {
194 I2C_BOARD_INFO("max8997", 0x66),
195 .platform_data = &smdk4x12_max8997_pdata,
196 }
197 };
198
199 static struct i2c_board_info smdk4x12_i2c_devs1[] __initdata = {
200 { I2C_BOARD_INFO("wm8994", 0x1a), }
201 };
202
203 static struct i2c_board_info smdk4x12_i2c_devs3[] __initdata = {
204 /* nothing here yet */
205 };
206
207 static struct i2c_board_info smdk4x12_i2c_devs7[] __initdata = {
208 /* nothing here yet */
209 };
210
211 static struct samsung_bl_gpio_info smdk4x12_bl_gpio_info = {
212 .no = EXYNOS4_GPD0(1),
213 .func = S3C_GPIO_SFN(2),
214 };
215
216 static struct platform_pwm_backlight_data smdk4x12_bl_data = {
217 .pwm_id = 1,
218 .pwm_period_ns = 1000,
219 };
220
221 static uint32_t smdk4x12_keymap[] __initdata = {
222 /* KEY(row, col, keycode) */
223 KEY(1, 0, KEY_D), KEY(1, 1, KEY_A), KEY(1, 2, KEY_B),
224 KEY(1, 3, KEY_E), KEY(1, 4, KEY_C)
225 };
226
227 static struct matrix_keymap_data smdk4x12_keymap_data __initdata = {
228 .keymap = smdk4x12_keymap,
229 .keymap_size = ARRAY_SIZE(smdk4x12_keymap),
230 };
231
232 static struct samsung_keypad_platdata smdk4x12_keypad_data __initdata = {
233 .keymap_data = &smdk4x12_keymap_data,
234 .rows = 2,
235 .cols = 5,
236 };
237
238 static struct platform_device *smdk4x12_devices[] __initdata = {
239 &s3c_device_hsmmc2,
240 &s3c_device_hsmmc3,
241 &s3c_device_i2c0,
242 &s3c_device_i2c1,
243 &s3c_device_i2c3,
244 &s3c_device_i2c7,
245 &s3c_device_rtc,
246 &s3c_device_wdt,
247 &samsung_device_keypad,
248 };
249
smdk4x12_map_io(void)250 static void __init smdk4x12_map_io(void)
251 {
252 clk_xusbxti.rate = 24000000;
253
254 exynos_init_io(NULL, 0);
255 s3c24xx_init_clocks(clk_xusbxti.rate);
256 s3c24xx_init_uarts(smdk4x12_uartcfgs, ARRAY_SIZE(smdk4x12_uartcfgs));
257 }
258
smdk4x12_machine_init(void)259 static void __init smdk4x12_machine_init(void)
260 {
261 s3c_i2c0_set_platdata(NULL);
262 i2c_register_board_info(0, smdk4x12_i2c_devs0,
263 ARRAY_SIZE(smdk4x12_i2c_devs0));
264
265 s3c_i2c1_set_platdata(NULL);
266 i2c_register_board_info(1, smdk4x12_i2c_devs1,
267 ARRAY_SIZE(smdk4x12_i2c_devs1));
268
269 s3c_i2c3_set_platdata(NULL);
270 i2c_register_board_info(3, smdk4x12_i2c_devs3,
271 ARRAY_SIZE(smdk4x12_i2c_devs3));
272
273 s3c_i2c7_set_platdata(NULL);
274 i2c_register_board_info(7, smdk4x12_i2c_devs7,
275 ARRAY_SIZE(smdk4x12_i2c_devs7));
276
277 samsung_bl_set(&smdk4x12_bl_gpio_info, &smdk4x12_bl_data);
278
279 samsung_keypad_set_platdata(&smdk4x12_keypad_data);
280
281 s3c_sdhci2_set_platdata(&smdk4x12_hsmmc2_pdata);
282 s3c_sdhci3_set_platdata(&smdk4x12_hsmmc3_pdata);
283
284 platform_add_devices(smdk4x12_devices, ARRAY_SIZE(smdk4x12_devices));
285 }
286
287 MACHINE_START(SMDK4212, "SMDK4212")
288 /* Maintainer: Kukjin Kim <kgene.kim@samsung.com> */
289 .atag_offset = 0x100,
290 .init_irq = exynos4_init_irq,
291 .map_io = smdk4x12_map_io,
292 .handle_irq = gic_handle_irq,
293 .init_machine = smdk4x12_machine_init,
294 .timer = &exynos4_timer,
295 .restart = exynos4_restart,
296 MACHINE_END
297
298 MACHINE_START(SMDK4412, "SMDK4412")
299 /* Maintainer: Kukjin Kim <kgene.kim@samsung.com> */
300 /* Maintainer: Changhwan Youn <chaos.youn@samsung.com> */
301 .atag_offset = 0x100,
302 .init_irq = exynos4_init_irq,
303 .map_io = smdk4x12_map_io,
304 .handle_irq = gic_handle_irq,
305 .init_machine = smdk4x12_machine_init,
306 .timer = &exynos4_timer,
307 .restart = exynos4_restart,
308 MACHINE_END
309