2 * linux/arch/arm/mach-s3c64xx/mach-smartq.c
4 * Copyright (C) 2010 Maurus Cuelenaere
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.
12 #include <linux/delay.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>
19 #include <linux/spi/spi_gpio.h>
20 #include <linux/usb/gpio_vbus.h>
21 #include <linux/platform_data/s3c-hsotg.h>
23 #include <asm/mach-types.h>
24 #include <asm/mach/map.h>
27 #include <mach/regs-gpio.h>
29 #include <plat/clock.h>
31 #include <plat/devs.h>
32 #include <linux/platform_data/i2c-s3c2410.h>
33 #include <plat/gpio-cfg.h>
34 #include <linux/platform_data/hwmon-s3c.h>
35 #include <plat/regs-serial.h>
36 #include <linux/platform_data/usb-ohci-s3c2410.h>
37 #include <plat/sdhci.h>
38 #include <linux/platform_data/touchscreen-s3c2410.h>
40 #include <video/platform_lcd.h>
41 #include <plat/samsung-time.h>
44 #include "regs-modem.h"
46 #define UCON S3C2410_UCON_DEFAULT
47 #define ULCON (S3C2410_LCON_CS8 | S3C2410_LCON_PNONE)
48 #define UFCON (S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE)
50 static struct s3c2410_uartcfg smartq_uartcfgs[] __initdata = {
74 static void smartq_usb_host_powercontrol(int port, int to)
76 pr_debug("%s(%d, %d)\n", __func__, port, to);
79 gpio_set_value(S3C64XX_GPL(0), to);
80 gpio_set_value(S3C64XX_GPL(1), to);
84 static irqreturn_t smartq_usb_host_ocirq(int irq, void *pw)
86 struct s3c2410_hcd_info *info = pw;
88 if (gpio_get_value(S3C64XX_GPL(10)) == 0) {
89 pr_debug("%s: over-current irq (oc detected)\n", __func__);
90 s3c2410_usb_report_oc(info, 3);
92 pr_debug("%s: over-current irq (oc cleared)\n", __func__);
93 s3c2410_usb_report_oc(info, 0);
99 static void smartq_usb_host_enableoc(struct s3c2410_hcd_info *info, int on)
103 /* This isn't present on a SmartQ 5 board */
104 if (machine_is_smartq5())
108 ret = request_irq(gpio_to_irq(S3C64XX_GPL(10)),
109 smartq_usb_host_ocirq, IRQF_DISABLED |
110 IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
111 "USB host overcurrent", info);
113 pr_err("failed to request usb oc irq: %d\n", ret);
115 free_irq(gpio_to_irq(S3C64XX_GPL(10)), info);
119 static struct s3c2410_hcd_info smartq_usb_host_info = {
121 .flags = S3C_HCDFLG_USED
127 .power_control = smartq_usb_host_powercontrol,
128 .enable_oc = smartq_usb_host_enableoc,
131 static struct gpio_vbus_mach_info smartq_usb_otg_vbus_pdata = {
132 .gpio_vbus = S3C64XX_GPL(9),
134 .gpio_vbus_inverted = true,
137 static struct platform_device smartq_usb_otg_vbus_dev = {
139 .dev.platform_data = &smartq_usb_otg_vbus_pdata,
142 static int smartq_bl_init(struct device *dev)
144 s3c_gpio_cfgpin(S3C64XX_GPF(15), S3C_GPIO_SFN(2));
149 static struct platform_pwm_backlight_data smartq_backlight_data = {
151 .max_brightness = 1000,
152 .dft_brightness = 600,
153 .pwm_period_ns = 1000000000 / (1000 * 20),
154 .init = smartq_bl_init,
157 static struct platform_device smartq_backlight_device = {
158 .name = "pwm-backlight",
160 .parent = &samsung_device_pwm.dev,
161 .platform_data = &smartq_backlight_data,
165 static struct s3c2410_ts_mach_info smartq_touchscreen_pdata __initdata = {
168 .oversampling_shift = 4,
171 static struct s3c_sdhci_platdata smartq_internal_hsmmc_pdata = {
173 .cd_type = S3C_SDHCI_CD_PERMANENT,
176 static struct s3c_hwmon_pdata smartq_hwmon_pdata __initdata = {
177 /* Battery voltage (?-4.2V) */
178 .in[0] = &(struct s3c_hwmon_chcfg) {
179 .name = "smartq:battery-voltage",
183 /* Reference voltage (1.2V) */
184 .in[1] = &(struct s3c_hwmon_chcfg) {
185 .name = "smartq:reference-voltage",
191 static struct s3c_hsotg_plat smartq_hsotg_pdata;
193 static int __init smartq_lcd_setup_gpio(void)
197 ret = gpio_request(S3C64XX_GPM(3), "LCD power");
202 gpio_direction_output(S3C64XX_GPM(3), 0);
208 static struct spi_gpio_platform_data smartq_lcd_control = {
209 .sck = S3C64XX_GPM(1),
210 .mosi = S3C64XX_GPM(2),
211 .miso = S3C64XX_GPM(2),
214 static struct platform_device smartq_lcd_control_device = {
217 .dev.platform_data = &smartq_lcd_control,
220 static void smartq_lcd_power_set(struct plat_lcd_data *pd, unsigned int power)
222 gpio_direction_output(S3C64XX_GPM(3), power);
225 static struct plat_lcd_data smartq_lcd_power_data = {
226 .set_power = smartq_lcd_power_set,
229 static struct platform_device smartq_lcd_power_device = {
230 .name = "platform-lcd",
231 .dev.parent = &s3c_device_fb.dev,
232 .dev.platform_data = &smartq_lcd_power_data,
235 static struct i2c_board_info smartq_i2c_devs[] __initdata = {
236 { I2C_BOARD_INFO("wm8987", 0x1a), },
239 static struct platform_device *smartq_devices[] __initdata = {
240 &s3c_device_hsmmc1, /* Init iNAND first, ... */
241 &s3c_device_hsmmc0, /* ... then the external SD card */
251 &s3c_device_usb_hsotg,
252 &s3c64xx_device_iis0,
253 &smartq_backlight_device,
254 &smartq_lcd_control_device,
255 &smartq_lcd_power_device,
256 &smartq_usb_otg_vbus_dev,
259 static void __init smartq_lcd_mode_set(void)
263 /* set the LCD type */
264 tmp = __raw_readl(S3C64XX_SPCON);
265 tmp &= ~S3C64XX_SPCON_LCD_SEL_MASK;
266 tmp |= S3C64XX_SPCON_LCD_SEL_RGB;
267 __raw_writel(tmp, S3C64XX_SPCON);
269 /* remove the LCD bypass */
270 tmp = __raw_readl(S3C64XX_MODEM_MIFPCON);
271 tmp &= ~MIFPCON_LCD_BYPASS;
272 __raw_writel(tmp, S3C64XX_MODEM_MIFPCON);
275 static void smartq_power_off(void)
277 gpio_direction_output(S3C64XX_GPK(15), 1);
280 static int __init smartq_power_off_init(void)
284 ret = gpio_request(S3C64XX_GPK(15), "Power control");
286 pr_err("%s: failed to get GPK15\n", __func__);
291 gpio_direction_output(S3C64XX_GPK(15), 0);
293 pm_power_off = smartq_power_off;
298 static int __init smartq_usb_host_init(void)
302 ret = gpio_request(S3C64XX_GPL(0), "USB power control");
304 pr_err("%s: failed to get GPL0\n", __func__);
308 ret = gpio_request(S3C64XX_GPL(1), "USB host power control");
310 pr_err("%s: failed to get GPL1\n", __func__);
314 if (!machine_is_smartq5()) {
315 /* This isn't present on a SmartQ 5 board */
316 ret = gpio_request(S3C64XX_GPL(10), "USB host overcurrent");
318 pr_err("%s: failed to get GPL10\n", __func__);
324 gpio_direction_output(S3C64XX_GPL(0), 0);
325 gpio_direction_output(S3C64XX_GPL(1), 0);
326 if (!machine_is_smartq5())
327 gpio_direction_input(S3C64XX_GPL(10));
329 s3c_device_ohci.dev.platform_data = &smartq_usb_host_info;
334 gpio_free(S3C64XX_GPL(1));
336 gpio_free(S3C64XX_GPL(0));
340 static int __init smartq_wifi_init(void)
344 ret = gpio_request(S3C64XX_GPK(1), "wifi control");
346 pr_err("%s: failed to get GPK1\n", __func__);
350 ret = gpio_request(S3C64XX_GPK(2), "wifi reset");
352 pr_err("%s: failed to get GPK2\n", __func__);
353 gpio_free(S3C64XX_GPK(1));
358 gpio_direction_output(S3C64XX_GPK(1), 1);
361 gpio_direction_output(S3C64XX_GPK(2), 0);
363 gpio_set_value(S3C64XX_GPK(2), 1);
364 gpio_direction_input(S3C64XX_GPK(2));
369 static struct map_desc smartq_iodesc[] __initdata = {};
370 void __init smartq_map_io(void)
372 s3c64xx_init_io(smartq_iodesc, ARRAY_SIZE(smartq_iodesc));
373 s3c64xx_set_xtal_freq(12000000);
374 s3c64xx_set_xusbxti_freq(12000000);
375 s3c24xx_init_uarts(smartq_uartcfgs, ARRAY_SIZE(smartq_uartcfgs));
376 samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
378 smartq_lcd_mode_set();
381 void __init smartq_machine_init(void)
383 s3c_i2c0_set_platdata(NULL);
384 s3c_hsotg_set_platdata(&smartq_hsotg_pdata);
385 s3c_hwmon_set_platdata(&smartq_hwmon_pdata);
386 s3c_sdhci1_set_platdata(&smartq_internal_hsmmc_pdata);
387 s3c_sdhci2_set_platdata(&smartq_internal_hsmmc_pdata);
388 s3c24xx_ts_set_platdata(&smartq_touchscreen_pdata);
390 i2c_register_board_info(0, smartq_i2c_devs,
391 ARRAY_SIZE(smartq_i2c_devs));
393 WARN_ON(smartq_lcd_setup_gpio());
394 WARN_ON(smartq_power_off_init());
395 WARN_ON(smartq_usb_host_init());
396 WARN_ON(smartq_wifi_init());
398 platform_add_devices(smartq_devices, ARRAY_SIZE(smartq_devices));