Merge branch 'davinci-next' of git://gitorious.org/linux-davinci/linux-davinci into...
[linux-2.6.git] / arch / arm / mach-exynos4 / mach-nuri.c
1 /*
2  * linux/arch/arm/mach-exynos4/mach-nuri.c
3  *
4  * Copyright (c) 2011 Samsung Electronics Co., Ltd.
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License version 2 as
8  * published by the Free Software Foundation.
9  */
10
11 #include <linux/platform_device.h>
12 #include <linux/serial_core.h>
13 #include <linux/input.h>
14 #include <linux/i2c.h>
15 #include <linux/gpio_keys.h>
16 #include <linux/gpio.h>
17 #include <linux/regulator/machine.h>
18 #include <linux/regulator/fixed.h>
19 #include <linux/mmc/host.h>
20 #include <linux/fb.h>
21 #include <linux/pwm_backlight.h>
22
23 #include <video/platform_lcd.h>
24
25 #include <asm/mach/arch.h>
26 #include <asm/mach-types.h>
27
28 #include <plat/regs-serial.h>
29 #include <plat/exynos4.h>
30 #include <plat/cpu.h>
31 #include <plat/devs.h>
32 #include <plat/sdhci.h>
33 #include <plat/ehci.h>
34 #include <plat/clock.h>
35
36 #include <mach/map.h>
37
38 /* Following are default values for UCON, ULCON and UFCON UART registers */
39 #define NURI_UCON_DEFAULT       (S3C2410_UCON_TXILEVEL |        \
40                                  S3C2410_UCON_RXILEVEL |        \
41                                  S3C2410_UCON_TXIRQMODE |       \
42                                  S3C2410_UCON_RXIRQMODE |       \
43                                  S3C2410_UCON_RXFIFO_TOI |      \
44                                  S3C2443_UCON_RXERR_IRQEN)
45
46 #define NURI_ULCON_DEFAULT      S3C2410_LCON_CS8
47
48 #define NURI_UFCON_DEFAULT      (S3C2410_UFCON_FIFOMODE |       \
49                                  S5PV210_UFCON_TXTRIG256 |      \
50                                  S5PV210_UFCON_RXTRIG256)
51
52 enum fixed_regulator_id {
53         FIXED_REG_ID_MMC = 0,
54 };
55
56 static struct s3c2410_uartcfg nuri_uartcfgs[] __initdata = {
57         {
58                 .hwport         = 0,
59                 .ucon           = NURI_UCON_DEFAULT,
60                 .ulcon          = NURI_ULCON_DEFAULT,
61                 .ufcon          = NURI_UFCON_DEFAULT,
62         },
63         {
64                 .hwport         = 1,
65                 .ucon           = NURI_UCON_DEFAULT,
66                 .ulcon          = NURI_ULCON_DEFAULT,
67                 .ufcon          = NURI_UFCON_DEFAULT,
68         },
69         {
70                 .hwport         = 2,
71                 .ucon           = NURI_UCON_DEFAULT,
72                 .ulcon          = NURI_ULCON_DEFAULT,
73                 .ufcon          = NURI_UFCON_DEFAULT,
74         },
75         {
76                 .hwport         = 3,
77                 .ucon           = NURI_UCON_DEFAULT,
78                 .ulcon          = NURI_ULCON_DEFAULT,
79                 .ufcon          = NURI_UFCON_DEFAULT,
80         },
81 };
82
83 /* eMMC */
84 static struct s3c_sdhci_platdata nuri_hsmmc0_data __initdata = {
85         .max_width              = 8,
86         .host_caps              = (MMC_CAP_8_BIT_DATA | MMC_CAP_4_BIT_DATA |
87                                 MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED |
88                                 MMC_CAP_DISABLE | MMC_CAP_ERASE),
89         .cd_type                = S3C_SDHCI_CD_PERMANENT,
90         .clk_type               = S3C_SDHCI_CLK_DIV_EXTERNAL,
91 };
92
93 static struct regulator_consumer_supply emmc_supplies[] = {
94         REGULATOR_SUPPLY("vmmc", "s3c-sdhci.0"),
95         REGULATOR_SUPPLY("vmmc", "dw_mmc"),
96 };
97
98 static struct regulator_init_data emmc_fixed_voltage_init_data = {
99         .constraints            = {
100                 .name           = "VMEM_VDD_2.8V",
101                 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
102         },
103         .num_consumer_supplies  = ARRAY_SIZE(emmc_supplies),
104         .consumer_supplies      = emmc_supplies,
105 };
106
107 static struct fixed_voltage_config emmc_fixed_voltage_config = {
108         .supply_name            = "MASSMEMORY_EN (inverted)",
109         .microvolts             = 2800000,
110         .gpio                   = EXYNOS4_GPL1(1),
111         .enable_high            = false,
112         .init_data              = &emmc_fixed_voltage_init_data,
113 };
114
115 static struct platform_device emmc_fixed_voltage = {
116         .name                   = "reg-fixed-voltage",
117         .id                     = FIXED_REG_ID_MMC,
118         .dev                    = {
119                 .platform_data  = &emmc_fixed_voltage_config,
120         },
121 };
122
123 /* SD */
124 static struct s3c_sdhci_platdata nuri_hsmmc2_data __initdata = {
125         .max_width              = 4,
126         .host_caps              = MMC_CAP_4_BIT_DATA |
127                                 MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED |
128                                 MMC_CAP_DISABLE,
129         .ext_cd_gpio            = EXYNOS4_GPX3(3),      /* XEINT_27 */
130         .ext_cd_gpio_invert     = 1,
131         .cd_type                = S3C_SDHCI_CD_GPIO,
132         .clk_type               = S3C_SDHCI_CLK_DIV_EXTERNAL,
133 };
134
135 /* WLAN */
136 static struct s3c_sdhci_platdata nuri_hsmmc3_data __initdata = {
137         .max_width              = 4,
138         .host_caps              = MMC_CAP_4_BIT_DATA |
139                                 MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
140         .cd_type                = S3C_SDHCI_CD_EXTERNAL,
141         .clk_type               = S3C_SDHCI_CLK_DIV_EXTERNAL,
142 };
143
144 static void __init nuri_sdhci_init(void)
145 {
146         s3c_sdhci0_set_platdata(&nuri_hsmmc0_data);
147         s3c_sdhci2_set_platdata(&nuri_hsmmc2_data);
148         s3c_sdhci3_set_platdata(&nuri_hsmmc3_data);
149 }
150
151 /* GPIO KEYS */
152 static struct gpio_keys_button nuri_gpio_keys_tables[] = {
153         {
154                 .code                   = KEY_VOLUMEUP,
155                 .gpio                   = EXYNOS4_GPX2(0),      /* XEINT16 */
156                 .desc                   = "gpio-keys: KEY_VOLUMEUP",
157                 .type                   = EV_KEY,
158                 .active_low             = 1,
159                 .debounce_interval      = 1,
160         }, {
161                 .code                   = KEY_VOLUMEDOWN,
162                 .gpio                   = EXYNOS4_GPX2(1),      /* XEINT17 */
163                 .desc                   = "gpio-keys: KEY_VOLUMEDOWN",
164                 .type                   = EV_KEY,
165                 .active_low             = 1,
166                 .debounce_interval      = 1,
167         }, {
168                 .code                   = KEY_POWER,
169                 .gpio                   = EXYNOS4_GPX2(7),      /* XEINT23 */
170                 .desc                   = "gpio-keys: KEY_POWER",
171                 .type                   = EV_KEY,
172                 .active_low             = 1,
173                 .wakeup                 = 1,
174                 .debounce_interval      = 1,
175         },
176 };
177
178 static struct gpio_keys_platform_data nuri_gpio_keys_data = {
179         .buttons                = nuri_gpio_keys_tables,
180         .nbuttons               = ARRAY_SIZE(nuri_gpio_keys_tables),
181 };
182
183 static struct platform_device nuri_gpio_keys = {
184         .name                   = "gpio-keys",
185         .dev                    = {
186                 .platform_data  = &nuri_gpio_keys_data,
187         },
188 };
189
190 static void nuri_lcd_power_on(struct plat_lcd_data *pd, unsigned int power)
191 {
192         int gpio = EXYNOS4_GPE1(5);
193
194         gpio_request(gpio, "LVDS_nSHDN");
195         gpio_direction_output(gpio, power);
196         gpio_free(gpio);
197 }
198
199 static int nuri_bl_init(struct device *dev)
200 {
201         int ret, gpio = EXYNOS4_GPE2(3);
202
203         ret = gpio_request(gpio, "LCD_LDO_EN");
204         if (!ret)
205                 gpio_direction_output(gpio, 0);
206
207         return ret;
208 }
209
210 static int nuri_bl_notify(struct device *dev, int brightness)
211 {
212         if (brightness < 1)
213                 brightness = 0;
214
215         gpio_set_value(EXYNOS4_GPE2(3), 1);
216
217         return brightness;
218 }
219
220 static void nuri_bl_exit(struct device *dev)
221 {
222         gpio_free(EXYNOS4_GPE2(3));
223 }
224
225 /* nuri pwm backlight */
226 static struct platform_pwm_backlight_data nuri_backlight_data = {
227         .pwm_id                 = 0,
228         .pwm_period_ns          = 30000,
229         .max_brightness         = 100,
230         .dft_brightness         = 50,
231         .init                   = nuri_bl_init,
232         .notify                 = nuri_bl_notify,
233         .exit                   = nuri_bl_exit,
234 };
235
236 static struct platform_device nuri_backlight_device = {
237         .name                   = "pwm-backlight",
238         .id                     = -1,
239         .dev                    = {
240                 .parent         = &s3c_device_timer[0].dev,
241                 .platform_data  = &nuri_backlight_data,
242         },
243 };
244
245 static struct plat_lcd_data nuri_lcd_platform_data = {
246         .set_power              = nuri_lcd_power_on,
247 };
248
249 static struct platform_device nuri_lcd_device = {
250         .name                   = "platform-lcd",
251         .id                     = -1,
252         .dev                    = {
253                 .platform_data  = &nuri_lcd_platform_data,
254         },
255 };
256
257 /* I2C1 */
258 static struct i2c_board_info i2c1_devs[] __initdata = {
259         /* Gyro, To be updated */
260 };
261
262 /* GPIO I2C 5 (PMIC) */
263 static struct i2c_board_info i2c5_devs[] __initdata = {
264         /* max8997, To be updated */
265 };
266
267 /* USB EHCI */
268 static struct s5p_ehci_platdata nuri_ehci_pdata;
269
270 static void __init nuri_ehci_init(void)
271 {
272         struct s5p_ehci_platdata *pdata = &nuri_ehci_pdata;
273
274         s5p_ehci_set_platdata(pdata);
275 }
276
277 static struct platform_device *nuri_devices[] __initdata = {
278         /* Samsung Platform Devices */
279         &emmc_fixed_voltage,
280         &s3c_device_hsmmc0,
281         &s3c_device_hsmmc2,
282         &s3c_device_hsmmc3,
283         &s3c_device_wdt,
284         &s3c_device_timer[0],
285         &s5p_device_ehci,
286
287         /* NURI Devices */
288         &nuri_gpio_keys,
289         &nuri_lcd_device,
290         &nuri_backlight_device,
291 };
292
293 static void __init nuri_map_io(void)
294 {
295         s5p_init_io(NULL, 0, S5P_VA_CHIPID);
296         s3c24xx_init_clocks(24000000);
297         s3c24xx_init_uarts(nuri_uartcfgs, ARRAY_SIZE(nuri_uartcfgs));
298 }
299
300 static void __init nuri_machine_init(void)
301 {
302         nuri_sdhci_init();
303
304         i2c_register_board_info(1, i2c1_devs, ARRAY_SIZE(i2c1_devs));
305         i2c_register_board_info(5, i2c5_devs, ARRAY_SIZE(i2c5_devs));
306
307         nuri_ehci_init();
308         clk_xusbxti.rate = 24000000;
309
310         /* Last */
311         platform_add_devices(nuri_devices, ARRAY_SIZE(nuri_devices));
312 }
313
314 MACHINE_START(NURI, "NURI")
315         /* Maintainer: Kyungmin Park <kyungmin.park@samsung.com> */
316         .boot_params    = S5P_PA_SDRAM + 0x100,
317         .init_irq       = exynos4_init_irq,
318         .map_io         = nuri_map_io,
319         .init_machine   = nuri_machine_init,
320         .timer          = &exynos4_timer,
321 MACHINE_END