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/usb/gpio_vbus.h>
21 #include <asm/mach-types.h>
22 #include <asm/mach/map.h>
25 #include <mach/regs-gpio.h>
26 #include <mach/regs-modem.h>
28 #include <plat/clock.h>
30 #include <plat/devs.h>
32 #include <plat/gpio-cfg.h>
33 #include <plat/hwmon.h>
34 #include <plat/regs-serial.h>
35 #include <plat/udc-hs.h>
36 #include <plat/usb-control.h>
37 #include <plat/sdhci.h>
40 #include <video/platform_lcd.h>
42 #define UCON S3C2410_UCON_DEFAULT
43 #define ULCON (S3C2410_LCON_CS8 | S3C2410_LCON_PNONE)
44 #define UFCON (S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE)
46 static struct s3c2410_uartcfg smartq_uartcfgs[] __initdata = {
70 static void smartq_usb_host_powercontrol(int port, int to)
72 pr_debug("%s(%d, %d)\n", __func__, port, to);
75 gpio_set_value(S3C64XX_GPL(0), to);
76 gpio_set_value(S3C64XX_GPL(1), to);
80 static irqreturn_t smartq_usb_host_ocirq(int irq, void *pw)
82 struct s3c2410_hcd_info *info = pw;
84 if (gpio_get_value(S3C64XX_GPL(10)) == 0) {
85 pr_debug("%s: over-current irq (oc detected)\n", __func__);
86 s3c2410_usb_report_oc(info, 3);
88 pr_debug("%s: over-current irq (oc cleared)\n", __func__);
89 s3c2410_usb_report_oc(info, 0);
95 static void smartq_usb_host_enableoc(struct s3c2410_hcd_info *info, int on)
99 /* This isn't present on a SmartQ 5 board */
100 if (machine_is_smartq5())
104 ret = request_irq(gpio_to_irq(S3C64XX_GPL(10)),
105 smartq_usb_host_ocirq, IRQF_DISABLED |
106 IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
107 "USB host overcurrent", info);
109 pr_err("failed to request usb oc irq: %d\n", ret);
111 free_irq(gpio_to_irq(S3C64XX_GPL(10)), info);
115 static struct s3c2410_hcd_info smartq_usb_host_info = {
117 .flags = S3C_HCDFLG_USED
123 .power_control = smartq_usb_host_powercontrol,
124 .enable_oc = smartq_usb_host_enableoc,
127 static struct gpio_vbus_mach_info smartq_usb_otg_vbus_pdata = {
128 .gpio_vbus = S3C64XX_GPL(9),
130 .gpio_vbus_inverted = true,
133 static struct platform_device smartq_usb_otg_vbus_dev = {
135 .dev.platform_data = &smartq_usb_otg_vbus_pdata,
138 static int __init smartq_bl_init(struct device *dev)
140 s3c_gpio_cfgpin(S3C64XX_GPF(15), S3C_GPIO_SFN(2));
145 static struct platform_pwm_backlight_data smartq_backlight_data = {
147 .max_brightness = 1000,
148 .dft_brightness = 600,
149 .pwm_period_ns = 1000000000 / (1000 * 20),
150 .init = smartq_bl_init,
153 static struct platform_device smartq_backlight_device = {
154 .name = "pwm-backlight",
156 .parent = &s3c_device_timer[1].dev,
157 .platform_data = &smartq_backlight_data,
161 static struct s3c2410_ts_mach_info smartq_touchscreen_pdata __initdata = {
164 .oversampling_shift = 4,
167 static struct s3c_sdhci_platdata smartq_internal_hsmmc_pdata = {
169 /*.broken_card_detection = true,*/
172 static struct s3c_hwmon_pdata smartq_hwmon_pdata __initdata = {
173 /* Battery voltage (?-4.2V) */
174 .in[0] = &(struct s3c_hwmon_chcfg) {
175 .name = "smartq:battery-voltage",
179 /* Reference voltage (1.2V) */
180 .in[1] = &(struct s3c_hwmon_chcfg) {
181 .name = "smartq:reference-voltage",
187 static void smartq_lcd_power_set(struct plat_lcd_data *pd, unsigned int power)
189 gpio_direction_output(S3C64XX_GPM(3), power);
192 static struct plat_lcd_data smartq_lcd_power_data = {
193 .set_power = smartq_lcd_power_set,
196 static struct platform_device smartq_lcd_power_device = {
197 .name = "platform-lcd",
198 .dev.parent = &s3c_device_fb.dev,
199 .dev.platform_data = &smartq_lcd_power_data,
203 static struct platform_device *smartq_devices[] __initdata = {
204 &s3c_device_hsmmc1, /* Init iNAND first, ... */
205 &s3c_device_hsmmc0, /* ... then the external SD card */
213 &s3c_device_timer[1],
215 &s3c_device_usb_hsotg,
216 &smartq_backlight_device,
217 &smartq_lcd_power_device,
218 &smartq_usb_otg_vbus_dev,
221 static void __init smartq_lcd_mode_set(void)
225 /* set the LCD type */
226 tmp = __raw_readl(S3C64XX_SPCON);
227 tmp &= ~S3C64XX_SPCON_LCD_SEL_MASK;
228 tmp |= S3C64XX_SPCON_LCD_SEL_RGB;
229 __raw_writel(tmp, S3C64XX_SPCON);
231 /* remove the LCD bypass */
232 tmp = __raw_readl(S3C64XX_MODEM_MIFPCON);
233 tmp &= ~MIFPCON_LCD_BYPASS;
234 __raw_writel(tmp, S3C64XX_MODEM_MIFPCON);
237 static void smartq_power_off(void)
239 gpio_direction_output(S3C64XX_GPK(15), 1);
242 static int __init smartq_power_off_init(void)
246 ret = gpio_request(S3C64XX_GPK(15), "Power control");
248 pr_err("%s: failed to get GPK15\n", __func__);
253 gpio_direction_output(S3C64XX_GPK(15), 0);
256 pm_power_off = smartq_power_off;
261 static int __init smartq_usb_host_init(void)
265 ret = gpio_request(S3C64XX_GPL(0), "USB power control");
267 pr_err("%s: failed to get GPL0\n", __func__);
271 ret = gpio_request(S3C64XX_GPL(1), "USB host power control");
273 pr_err("%s: failed to get GPL1\n", __func__);
277 if (!machine_is_smartq5()) {
278 /* This isn't present on a SmartQ 5 board */
279 ret = gpio_request(S3C64XX_GPL(10), "USB host overcurrent");
281 pr_err("%s: failed to get GPL10\n", __func__);
287 gpio_direction_output(S3C64XX_GPL(0), 0);
288 gpio_direction_output(S3C64XX_GPL(1), 0);
289 if (!machine_is_smartq5())
290 gpio_direction_input(S3C64XX_GPL(10));
292 s3c_device_ohci.dev.platform_data = &smartq_usb_host_info;
297 gpio_free(S3C64XX_GPL(1));
299 gpio_free(S3C64XX_GPL(0));
303 static int __init smartq_usb_otg_init(void)
305 clk_xusbxti.rate = 12000000;
310 static int __init smartq_wifi_init(void)
314 ret = gpio_request(S3C64XX_GPK(1), "wifi control");
316 pr_err("%s: failed to get GPK1\n", __func__);
320 ret = gpio_request(S3C64XX_GPK(2), "wifi reset");
322 pr_err("%s: failed to get GPK2\n", __func__);
323 gpio_free(S3C64XX_GPK(1));
328 gpio_direction_output(S3C64XX_GPK(1), 1);
331 gpio_direction_output(S3C64XX_GPK(2), 0);
333 gpio_set_value(S3C64XX_GPK(2), 1);
334 gpio_direction_input(S3C64XX_GPK(2));
339 static struct map_desc smartq_iodesc[] __initdata = {};
340 void __init smartq_map_io(void)
342 s3c64xx_init_io(smartq_iodesc, ARRAY_SIZE(smartq_iodesc));
343 s3c24xx_init_clocks(12000000);
344 s3c24xx_init_uarts(smartq_uartcfgs, ARRAY_SIZE(smartq_uartcfgs));
346 smartq_lcd_mode_set();
349 void __init smartq_machine_init(void)
351 s3c_i2c0_set_platdata(NULL);
352 s3c_hwmon_set_platdata(&smartq_hwmon_pdata);
353 s3c_sdhci1_set_platdata(&smartq_internal_hsmmc_pdata);
354 s3c_sdhci2_set_platdata(&smartq_internal_hsmmc_pdata);
355 s3c24xx_ts_set_platdata(&smartq_touchscreen_pdata);
357 WARN_ON(smartq_power_off_init());
358 WARN_ON(smartq_usb_host_init());
359 WARN_ON(smartq_usb_otg_init());
360 WARN_ON(smartq_wifi_init());
362 platform_add_devices(smartq_devices, ARRAY_SIZE(smartq_devices));