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a2f7bffa MC |
1 | /* |
2 | * linux/arch/arm/mach-s3c64xx/mach-smartq.c | |
3 | * | |
4 | * Copyright (C) 2010 Maurus Cuelenaere | |
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 | ||
12 | #include <linux/delay.h> | |
13 | #include <linux/fb.h> | |
14 | #include <linux/gpio.h> | |
15 | #include <linux/init.h> | |
16 | #include <linux/platform_device.h> | |
17 | #include <linux/pwm_backlight.h> | |
18 | #include <linux/serial_core.h> | |
49f91b9e | 19 | #include <linux/spi/spi_gpio.h> |
a2f7bffa | 20 | #include <linux/usb/gpio_vbus.h> |
126625e1 | 21 | #include <linux/platform_data/s3c-hsotg.h> |
a2f7bffa MC |
22 | |
23 | #include <asm/mach-types.h> | |
24 | #include <asm/mach/map.h> | |
25 | ||
26 | #include <mach/map.h> | |
27 | #include <mach/regs-gpio.h> | |
a2f7bffa MC |
28 | |
29 | #include <plat/clock.h> | |
30 | #include <plat/cpu.h> | |
31 | #include <plat/devs.h> | |
436d42c6 | 32 | #include <linux/platform_data/i2c-s3c2410.h> |
a2f7bffa | 33 | #include <plat/gpio-cfg.h> |
436d42c6 | 34 | #include <linux/platform_data/hwmon-s3c.h> |
a2f7bffa | 35 | #include <plat/regs-serial.h> |
436d42c6 | 36 | #include <linux/platform_data/usb-ohci-s3c2410.h> |
a2f7bffa | 37 | #include <plat/sdhci.h> |
436d42c6 | 38 | #include <linux/platform_data/touchscreen-s3c2410.h> |
a2f7bffa MC |
39 | |
40 | #include <video/platform_lcd.h> | |
41 | ||
b024043b | 42 | #include "common.h" |
a81c1970 | 43 | #include "regs-modem.h" |
b024043b | 44 | |
a2f7bffa MC |
45 | #define UCON S3C2410_UCON_DEFAULT |
46 | #define ULCON (S3C2410_LCON_CS8 | S3C2410_LCON_PNONE) | |
47 | #define UFCON (S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE) | |
48 | ||
49 | static struct s3c2410_uartcfg smartq_uartcfgs[] __initdata = { | |
50 | [0] = { | |
51 | .hwport = 0, | |
52 | .flags = 0, | |
53 | .ucon = UCON, | |
54 | .ulcon = ULCON, | |
55 | .ufcon = UFCON, | |
56 | }, | |
57 | [1] = { | |
58 | .hwport = 1, | |
59 | .flags = 0, | |
60 | .ucon = UCON, | |
61 | .ulcon = ULCON, | |
62 | .ufcon = UFCON, | |
63 | }, | |
64 | [2] = { | |
65 | .hwport = 2, | |
66 | .flags = 0, | |
67 | .ucon = UCON, | |
68 | .ulcon = ULCON, | |
69 | .ufcon = UFCON, | |
70 | }, | |
71 | }; | |
72 | ||
73 | static void smartq_usb_host_powercontrol(int port, int to) | |
74 | { | |
75 | pr_debug("%s(%d, %d)\n", __func__, port, to); | |
76 | ||
77 | if (port == 0) { | |
78 | gpio_set_value(S3C64XX_GPL(0), to); | |
79 | gpio_set_value(S3C64XX_GPL(1), to); | |
80 | } | |
81 | } | |
82 | ||
83 | static irqreturn_t smartq_usb_host_ocirq(int irq, void *pw) | |
84 | { | |
85 | struct s3c2410_hcd_info *info = pw; | |
86 | ||
87 | if (gpio_get_value(S3C64XX_GPL(10)) == 0) { | |
88 | pr_debug("%s: over-current irq (oc detected)\n", __func__); | |
89 | s3c2410_usb_report_oc(info, 3); | |
90 | } else { | |
91 | pr_debug("%s: over-current irq (oc cleared)\n", __func__); | |
92 | s3c2410_usb_report_oc(info, 0); | |
93 | } | |
94 | ||
95 | return IRQ_HANDLED; | |
96 | } | |
97 | ||
98 | static void smartq_usb_host_enableoc(struct s3c2410_hcd_info *info, int on) | |
99 | { | |
100 | int ret; | |
101 | ||
102 | /* This isn't present on a SmartQ 5 board */ | |
103 | if (machine_is_smartq5()) | |
104 | return; | |
105 | ||
106 | if (on) { | |
107 | ret = request_irq(gpio_to_irq(S3C64XX_GPL(10)), | |
108 | smartq_usb_host_ocirq, IRQF_DISABLED | | |
109 | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, | |
110 | "USB host overcurrent", info); | |
111 | if (ret != 0) | |
112 | pr_err("failed to request usb oc irq: %d\n", ret); | |
113 | } else { | |
114 | free_irq(gpio_to_irq(S3C64XX_GPL(10)), info); | |
115 | } | |
116 | } | |
117 | ||
118 | static struct s3c2410_hcd_info smartq_usb_host_info = { | |
119 | .port[0] = { | |
120 | .flags = S3C_HCDFLG_USED | |
121 | }, | |
122 | .port[1] = { | |
123 | .flags = 0 | |
124 | }, | |
125 | ||
126 | .power_control = smartq_usb_host_powercontrol, | |
127 | .enable_oc = smartq_usb_host_enableoc, | |
128 | }; | |
129 | ||
130 | static struct gpio_vbus_mach_info smartq_usb_otg_vbus_pdata = { | |
131 | .gpio_vbus = S3C64XX_GPL(9), | |
132 | .gpio_pullup = -1, | |
133 | .gpio_vbus_inverted = true, | |
134 | }; | |
135 | ||
136 | static struct platform_device smartq_usb_otg_vbus_dev = { | |
137 | .name = "gpio-vbus", | |
138 | .dev.platform_data = &smartq_usb_otg_vbus_pdata, | |
139 | }; | |
140 | ||
9e978f09 | 141 | static int smartq_bl_init(struct device *dev) |
a2f7bffa MC |
142 | { |
143 | s3c_gpio_cfgpin(S3C64XX_GPF(15), S3C_GPIO_SFN(2)); | |
144 | ||
145 | return 0; | |
146 | } | |
147 | ||
148 | static struct platform_pwm_backlight_data smartq_backlight_data = { | |
149 | .pwm_id = 1, | |
150 | .max_brightness = 1000, | |
151 | .dft_brightness = 600, | |
152 | .pwm_period_ns = 1000000000 / (1000 * 20), | |
153 | .init = smartq_bl_init, | |
154 | }; | |
155 | ||
156 | static struct platform_device smartq_backlight_device = { | |
157 | .name = "pwm-backlight", | |
158 | .dev = { | |
159 | .parent = &s3c_device_timer[1].dev, | |
160 | .platform_data = &smartq_backlight_data, | |
161 | }, | |
162 | }; | |
163 | ||
164 | static struct s3c2410_ts_mach_info smartq_touchscreen_pdata __initdata = { | |
165 | .delay = 65535, | |
166 | .presc = 99, | |
167 | .oversampling_shift = 4, | |
168 | }; | |
169 | ||
170 | static struct s3c_sdhci_platdata smartq_internal_hsmmc_pdata = { | |
171 | .max_width = 4, | |
eeda5fcb | 172 | .cd_type = S3C_SDHCI_CD_PERMANENT, |
a2f7bffa MC |
173 | }; |
174 | ||
175 | static struct s3c_hwmon_pdata smartq_hwmon_pdata __initdata = { | |
176 | /* Battery voltage (?-4.2V) */ | |
177 | .in[0] = &(struct s3c_hwmon_chcfg) { | |
178 | .name = "smartq:battery-voltage", | |
179 | .mult = 3300, | |
180 | .div = 2048, | |
181 | }, | |
182 | /* Reference voltage (1.2V) */ | |
183 | .in[1] = &(struct s3c_hwmon_chcfg) { | |
184 | .name = "smartq:reference-voltage", | |
185 | .mult = 3300, | |
186 | .div = 4096, | |
187 | }, | |
188 | }; | |
189 | ||
99f6e1f5 JS |
190 | static struct s3c_hsotg_plat smartq_hsotg_pdata; |
191 | ||
49f91b9e MC |
192 | static int __init smartq_lcd_setup_gpio(void) |
193 | { | |
194 | int ret; | |
195 | ||
196 | ret = gpio_request(S3C64XX_GPM(3), "LCD power"); | |
197 | if (ret < 0) | |
198 | return ret; | |
199 | ||
200 | /* turn power off */ | |
201 | gpio_direction_output(S3C64XX_GPM(3), 0); | |
202 | ||
203 | return 0; | |
204 | } | |
205 | ||
206 | /* GPM0 -> CS */ | |
207 | static struct spi_gpio_platform_data smartq_lcd_control = { | |
208 | .sck = S3C64XX_GPM(1), | |
209 | .mosi = S3C64XX_GPM(2), | |
210 | .miso = S3C64XX_GPM(2), | |
211 | }; | |
212 | ||
213 | static struct platform_device smartq_lcd_control_device = { | |
214 | .name = "spi-gpio", | |
215 | .id = 1, | |
216 | .dev.platform_data = &smartq_lcd_control, | |
217 | }; | |
218 | ||
a2f7bffa MC |
219 | static void smartq_lcd_power_set(struct plat_lcd_data *pd, unsigned int power) |
220 | { | |
221 | gpio_direction_output(S3C64XX_GPM(3), power); | |
222 | } | |
223 | ||
224 | static struct plat_lcd_data smartq_lcd_power_data = { | |
225 | .set_power = smartq_lcd_power_set, | |
226 | }; | |
227 | ||
228 | static struct platform_device smartq_lcd_power_device = { | |
229 | .name = "platform-lcd", | |
230 | .dev.parent = &s3c_device_fb.dev, | |
231 | .dev.platform_data = &smartq_lcd_power_data, | |
232 | }; | |
233 | ||
4e13c0ea MC |
234 | static struct i2c_board_info smartq_i2c_devs[] __initdata = { |
235 | { I2C_BOARD_INFO("wm8987", 0x1a), }, | |
236 | }; | |
237 | ||
a2f7bffa MC |
238 | static struct platform_device *smartq_devices[] __initdata = { |
239 | &s3c_device_hsmmc1, /* Init iNAND first, ... */ | |
240 | &s3c_device_hsmmc0, /* ... then the external SD card */ | |
241 | &s3c_device_hsmmc2, | |
242 | &s3c_device_adc, | |
243 | &s3c_device_fb, | |
244 | &s3c_device_hwmon, | |
245 | &s3c_device_i2c0, | |
246 | &s3c_device_ohci, | |
247 | &s3c_device_rtc, | |
248 | &s3c_device_timer[1], | |
249 | &s3c_device_ts, | |
250 | &s3c_device_usb_hsotg, | |
4e13c0ea | 251 | &s3c64xx_device_iis0, |
a2f7bffa | 252 | &smartq_backlight_device, |
49f91b9e | 253 | &smartq_lcd_control_device, |
a2f7bffa MC |
254 | &smartq_lcd_power_device, |
255 | &smartq_usb_otg_vbus_dev, | |
256 | }; | |
257 | ||
258 | static void __init smartq_lcd_mode_set(void) | |
259 | { | |
260 | u32 tmp; | |
261 | ||
262 | /* set the LCD type */ | |
263 | tmp = __raw_readl(S3C64XX_SPCON); | |
264 | tmp &= ~S3C64XX_SPCON_LCD_SEL_MASK; | |
265 | tmp |= S3C64XX_SPCON_LCD_SEL_RGB; | |
266 | __raw_writel(tmp, S3C64XX_SPCON); | |
267 | ||
268 | /* remove the LCD bypass */ | |
269 | tmp = __raw_readl(S3C64XX_MODEM_MIFPCON); | |
270 | tmp &= ~MIFPCON_LCD_BYPASS; | |
271 | __raw_writel(tmp, S3C64XX_MODEM_MIFPCON); | |
272 | } | |
273 | ||
274 | static void smartq_power_off(void) | |
275 | { | |
276 | gpio_direction_output(S3C64XX_GPK(15), 1); | |
277 | } | |
278 | ||
279 | static int __init smartq_power_off_init(void) | |
280 | { | |
281 | int ret; | |
282 | ||
283 | ret = gpio_request(S3C64XX_GPK(15), "Power control"); | |
284 | if (ret < 0) { | |
285 | pr_err("%s: failed to get GPK15\n", __func__); | |
286 | return ret; | |
287 | } | |
288 | ||
289 | /* leave power on */ | |
290 | gpio_direction_output(S3C64XX_GPK(15), 0); | |
291 | ||
a2f7bffa MC |
292 | pm_power_off = smartq_power_off; |
293 | ||
294 | return ret; | |
295 | } | |
296 | ||
297 | static int __init smartq_usb_host_init(void) | |
298 | { | |
299 | int ret; | |
300 | ||
301 | ret = gpio_request(S3C64XX_GPL(0), "USB power control"); | |
302 | if (ret < 0) { | |
303 | pr_err("%s: failed to get GPL0\n", __func__); | |
304 | return ret; | |
305 | } | |
306 | ||
307 | ret = gpio_request(S3C64XX_GPL(1), "USB host power control"); | |
308 | if (ret < 0) { | |
309 | pr_err("%s: failed to get GPL1\n", __func__); | |
310 | goto err; | |
311 | } | |
312 | ||
313 | if (!machine_is_smartq5()) { | |
314 | /* This isn't present on a SmartQ 5 board */ | |
315 | ret = gpio_request(S3C64XX_GPL(10), "USB host overcurrent"); | |
316 | if (ret < 0) { | |
317 | pr_err("%s: failed to get GPL10\n", __func__); | |
318 | goto err2; | |
319 | } | |
320 | } | |
321 | ||
322 | /* turn power off */ | |
323 | gpio_direction_output(S3C64XX_GPL(0), 0); | |
324 | gpio_direction_output(S3C64XX_GPL(1), 0); | |
325 | if (!machine_is_smartq5()) | |
326 | gpio_direction_input(S3C64XX_GPL(10)); | |
327 | ||
328 | s3c_device_ohci.dev.platform_data = &smartq_usb_host_info; | |
329 | ||
330 | return 0; | |
331 | ||
332 | err2: | |
333 | gpio_free(S3C64XX_GPL(1)); | |
334 | err: | |
335 | gpio_free(S3C64XX_GPL(0)); | |
336 | return ret; | |
337 | } | |
338 | ||
339 | static int __init smartq_usb_otg_init(void) | |
340 | { | |
341 | clk_xusbxti.rate = 12000000; | |
342 | ||
343 | return 0; | |
344 | } | |
345 | ||
346 | static int __init smartq_wifi_init(void) | |
347 | { | |
348 | int ret; | |
349 | ||
350 | ret = gpio_request(S3C64XX_GPK(1), "wifi control"); | |
351 | if (ret < 0) { | |
352 | pr_err("%s: failed to get GPK1\n", __func__); | |
353 | return ret; | |
354 | } | |
355 | ||
356 | ret = gpio_request(S3C64XX_GPK(2), "wifi reset"); | |
357 | if (ret < 0) { | |
358 | pr_err("%s: failed to get GPK2\n", __func__); | |
359 | gpio_free(S3C64XX_GPK(1)); | |
360 | return ret; | |
361 | } | |
362 | ||
363 | /* turn power on */ | |
364 | gpio_direction_output(S3C64XX_GPK(1), 1); | |
365 | ||
366 | /* reset device */ | |
367 | gpio_direction_output(S3C64XX_GPK(2), 0); | |
368 | mdelay(100); | |
369 | gpio_set_value(S3C64XX_GPK(2), 1); | |
370 | gpio_direction_input(S3C64XX_GPK(2)); | |
371 | ||
372 | return 0; | |
373 | } | |
374 | ||
375 | static struct map_desc smartq_iodesc[] __initdata = {}; | |
376 | void __init smartq_map_io(void) | |
377 | { | |
378 | s3c64xx_init_io(smartq_iodesc, ARRAY_SIZE(smartq_iodesc)); | |
379 | s3c24xx_init_clocks(12000000); | |
380 | s3c24xx_init_uarts(smartq_uartcfgs, ARRAY_SIZE(smartq_uartcfgs)); | |
381 | ||
382 | smartq_lcd_mode_set(); | |
383 | } | |
384 | ||
385 | void __init smartq_machine_init(void) | |
386 | { | |
387 | s3c_i2c0_set_platdata(NULL); | |
99f6e1f5 | 388 | s3c_hsotg_set_platdata(&smartq_hsotg_pdata); |
a2f7bffa MC |
389 | s3c_hwmon_set_platdata(&smartq_hwmon_pdata); |
390 | s3c_sdhci1_set_platdata(&smartq_internal_hsmmc_pdata); | |
391 | s3c_sdhci2_set_platdata(&smartq_internal_hsmmc_pdata); | |
392 | s3c24xx_ts_set_platdata(&smartq_touchscreen_pdata); | |
393 | ||
4e13c0ea MC |
394 | i2c_register_board_info(0, smartq_i2c_devs, |
395 | ARRAY_SIZE(smartq_i2c_devs)); | |
396 | ||
49f91b9e | 397 | WARN_ON(smartq_lcd_setup_gpio()); |
a2f7bffa MC |
398 | WARN_ON(smartq_power_off_init()); |
399 | WARN_ON(smartq_usb_host_init()); | |
400 | WARN_ON(smartq_usb_otg_init()); | |
401 | WARN_ON(smartq_wifi_init()); | |
402 | ||
403 | platform_add_devices(smartq_devices, ARRAY_SIZE(smartq_devices)); | |
404 | } |