| /* |
| * linux/arch/arm/mach-s3c64xx/mach-smartq.c |
| * |
| * Copyright (C) 2010 Maurus Cuelenaere |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| * |
| */ |
| |
| #include <linux/delay.h> |
| #include <linux/fb.h> |
| #include <linux/gpio.h> |
| #include <linux/init.h> |
| #include <linux/platform_device.h> |
| #include <linux/pwm_backlight.h> |
| #include <linux/serial_core.h> |
| #include <linux/spi/spi_gpio.h> |
| #include <linux/usb/gpio_vbus.h> |
| |
| #include <asm/mach-types.h> |
| #include <asm/mach/map.h> |
| |
| #include <mach/map.h> |
| #include <mach/regs-gpio.h> |
| #include <mach/regs-modem.h> |
| |
| #include <plat/clock.h> |
| #include <plat/cpu.h> |
| #include <plat/devs.h> |
| #include <plat/iic.h> |
| #include <plat/gpio-cfg.h> |
| #include <plat/hwmon.h> |
| #include <plat/regs-serial.h> |
| #include <plat/udc-hs.h> |
| #include <plat/usb-control.h> |
| #include <plat/sdhci.h> |
| #include <plat/ts.h> |
| |
| #include <video/platform_lcd.h> |
| |
| #define UCON S3C2410_UCON_DEFAULT |
| #define ULCON (S3C2410_LCON_CS8 | S3C2410_LCON_PNONE) |
| #define UFCON (S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE) |
| |
| static struct s3c2410_uartcfg smartq_uartcfgs[] __initdata = { |
| [0] = { |
| .hwport = 0, |
| .flags = 0, |
| .ucon = UCON, |
| .ulcon = ULCON, |
| .ufcon = UFCON, |
| }, |
| [1] = { |
| .hwport = 1, |
| .flags = 0, |
| .ucon = UCON, |
| .ulcon = ULCON, |
| .ufcon = UFCON, |
| }, |
| [2] = { |
| .hwport = 2, |
| .flags = 0, |
| .ucon = UCON, |
| .ulcon = ULCON, |
| .ufcon = UFCON, |
| }, |
| }; |
| |
| static void smartq_usb_host_powercontrol(int port, int to) |
| { |
| pr_debug("%s(%d, %d)\n", __func__, port, to); |
| |
| if (port == 0) { |
| gpio_set_value(S3C64XX_GPL(0), to); |
| gpio_set_value(S3C64XX_GPL(1), to); |
| } |
| } |
| |
| static irqreturn_t smartq_usb_host_ocirq(int irq, void *pw) |
| { |
| struct s3c2410_hcd_info *info = pw; |
| |
| if (gpio_get_value(S3C64XX_GPL(10)) == 0) { |
| pr_debug("%s: over-current irq (oc detected)\n", __func__); |
| s3c2410_usb_report_oc(info, 3); |
| } else { |
| pr_debug("%s: over-current irq (oc cleared)\n", __func__); |
| s3c2410_usb_report_oc(info, 0); |
| } |
| |
| return IRQ_HANDLED; |
| } |
| |
| static void smartq_usb_host_enableoc(struct s3c2410_hcd_info *info, int on) |
| { |
| int ret; |
| |
| /* This isn't present on a SmartQ 5 board */ |
| if (machine_is_smartq5()) |
| return; |
| |
| if (on) { |
| ret = request_irq(gpio_to_irq(S3C64XX_GPL(10)), |
| smartq_usb_host_ocirq, IRQF_DISABLED | |
| IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, |
| "USB host overcurrent", info); |
| if (ret != 0) |
| pr_err("failed to request usb oc irq: %d\n", ret); |
| } else { |
| free_irq(gpio_to_irq(S3C64XX_GPL(10)), info); |
| } |
| } |
| |
| static struct s3c2410_hcd_info smartq_usb_host_info = { |
| .port[0] = { |
| .flags = S3C_HCDFLG_USED |
| }, |
| .port[1] = { |
| .flags = 0 |
| }, |
| |
| .power_control = smartq_usb_host_powercontrol, |
| .enable_oc = smartq_usb_host_enableoc, |
| }; |
| |
| static struct gpio_vbus_mach_info smartq_usb_otg_vbus_pdata = { |
| .gpio_vbus = S3C64XX_GPL(9), |
| .gpio_pullup = -1, |
| .gpio_vbus_inverted = true, |
| }; |
| |
| static struct platform_device smartq_usb_otg_vbus_dev = { |
| .name = "gpio-vbus", |
| .dev.platform_data = &smartq_usb_otg_vbus_pdata, |
| }; |
| |
| static int __init smartq_bl_init(struct device *dev) |
| { |
| s3c_gpio_cfgpin(S3C64XX_GPF(15), S3C_GPIO_SFN(2)); |
| |
| return 0; |
| } |
| |
| static struct platform_pwm_backlight_data smartq_backlight_data = { |
| .pwm_id = 1, |
| .max_brightness = 1000, |
| .dft_brightness = 600, |
| .pwm_period_ns = 1000000000 / (1000 * 20), |
| .init = smartq_bl_init, |
| }; |
| |
| static struct platform_device smartq_backlight_device = { |
| .name = "pwm-backlight", |
| .dev = { |
| .parent = &s3c_device_timer[1].dev, |
| .platform_data = &smartq_backlight_data, |
| }, |
| }; |
| |
| static struct s3c2410_ts_mach_info smartq_touchscreen_pdata __initdata = { |
| .delay = 65535, |
| .presc = 99, |
| .oversampling_shift = 4, |
| }; |
| |
| static struct s3c_sdhci_platdata smartq_internal_hsmmc_pdata = { |
| .max_width = 4, |
| /*.broken_card_detection = true,*/ |
| }; |
| |
| static struct s3c_hwmon_pdata smartq_hwmon_pdata __initdata = { |
| /* Battery voltage (?-4.2V) */ |
| .in[0] = &(struct s3c_hwmon_chcfg) { |
| .name = "smartq:battery-voltage", |
| .mult = 3300, |
| .div = 2048, |
| }, |
| /* Reference voltage (1.2V) */ |
| .in[1] = &(struct s3c_hwmon_chcfg) { |
| .name = "smartq:reference-voltage", |
| .mult = 3300, |
| .div = 4096, |
| }, |
| }; |
| |
| static int __init smartq_lcd_setup_gpio(void) |
| { |
| int ret; |
| |
| ret = gpio_request(S3C64XX_GPM(3), "LCD power"); |
| if (ret < 0) |
| return ret; |
| |
| /* turn power off */ |
| gpio_direction_output(S3C64XX_GPM(3), 0); |
| |
| return 0; |
| } |
| |
| /* GPM0 -> CS */ |
| static struct spi_gpio_platform_data smartq_lcd_control = { |
| .sck = S3C64XX_GPM(1), |
| .mosi = S3C64XX_GPM(2), |
| .miso = S3C64XX_GPM(2), |
| }; |
| |
| static struct platform_device smartq_lcd_control_device = { |
| .name = "spi-gpio", |
| .id = 1, |
| .dev.platform_data = &smartq_lcd_control, |
| }; |
| |
| static void smartq_lcd_power_set(struct plat_lcd_data *pd, unsigned int power) |
| { |
| gpio_direction_output(S3C64XX_GPM(3), power); |
| } |
| |
| static struct plat_lcd_data smartq_lcd_power_data = { |
| .set_power = smartq_lcd_power_set, |
| }; |
| |
| static struct platform_device smartq_lcd_power_device = { |
| .name = "platform-lcd", |
| .dev.parent = &s3c_device_fb.dev, |
| .dev.platform_data = &smartq_lcd_power_data, |
| }; |
| |
| static struct platform_device *smartq_devices[] __initdata = { |
| &s3c_device_hsmmc1, /* Init iNAND first, ... */ |
| &s3c_device_hsmmc0, /* ... then the external SD card */ |
| &s3c_device_hsmmc2, |
| &s3c_device_adc, |
| &s3c_device_fb, |
| &s3c_device_hwmon, |
| &s3c_device_i2c0, |
| &s3c_device_ohci, |
| &s3c_device_rtc, |
| &s3c_device_timer[1], |
| &s3c_device_ts, |
| &s3c_device_usb_hsotg, |
| &smartq_backlight_device, |
| &smartq_lcd_control_device, |
| &smartq_lcd_power_device, |
| &smartq_usb_otg_vbus_dev, |
| }; |
| |
| static void __init smartq_lcd_mode_set(void) |
| { |
| u32 tmp; |
| |
| /* set the LCD type */ |
| tmp = __raw_readl(S3C64XX_SPCON); |
| tmp &= ~S3C64XX_SPCON_LCD_SEL_MASK; |
| tmp |= S3C64XX_SPCON_LCD_SEL_RGB; |
| __raw_writel(tmp, S3C64XX_SPCON); |
| |
| /* remove the LCD bypass */ |
| tmp = __raw_readl(S3C64XX_MODEM_MIFPCON); |
| tmp &= ~MIFPCON_LCD_BYPASS; |
| __raw_writel(tmp, S3C64XX_MODEM_MIFPCON); |
| } |
| |
| static void smartq_power_off(void) |
| { |
| gpio_direction_output(S3C64XX_GPK(15), 1); |
| } |
| |
| static int __init smartq_power_off_init(void) |
| { |
| int ret; |
| |
| ret = gpio_request(S3C64XX_GPK(15), "Power control"); |
| if (ret < 0) { |
| pr_err("%s: failed to get GPK15\n", __func__); |
| return ret; |
| } |
| |
| /* leave power on */ |
| gpio_direction_output(S3C64XX_GPK(15), 0); |
| |
| pm_power_off = smartq_power_off; |
| |
| return ret; |
| } |
| |
| static int __init smartq_usb_host_init(void) |
| { |
| int ret; |
| |
| ret = gpio_request(S3C64XX_GPL(0), "USB power control"); |
| if (ret < 0) { |
| pr_err("%s: failed to get GPL0\n", __func__); |
| return ret; |
| } |
| |
| ret = gpio_request(S3C64XX_GPL(1), "USB host power control"); |
| if (ret < 0) { |
| pr_err("%s: failed to get GPL1\n", __func__); |
| goto err; |
| } |
| |
| if (!machine_is_smartq5()) { |
| /* This isn't present on a SmartQ 5 board */ |
| ret = gpio_request(S3C64XX_GPL(10), "USB host overcurrent"); |
| if (ret < 0) { |
| pr_err("%s: failed to get GPL10\n", __func__); |
| goto err2; |
| } |
| } |
| |
| /* turn power off */ |
| gpio_direction_output(S3C64XX_GPL(0), 0); |
| gpio_direction_output(S3C64XX_GPL(1), 0); |
| if (!machine_is_smartq5()) |
| gpio_direction_input(S3C64XX_GPL(10)); |
| |
| s3c_device_ohci.dev.platform_data = &smartq_usb_host_info; |
| |
| return 0; |
| |
| err2: |
| gpio_free(S3C64XX_GPL(1)); |
| err: |
| gpio_free(S3C64XX_GPL(0)); |
| return ret; |
| } |
| |
| static int __init smartq_usb_otg_init(void) |
| { |
| clk_xusbxti.rate = 12000000; |
| |
| return 0; |
| } |
| |
| static int __init smartq_wifi_init(void) |
| { |
| int ret; |
| |
| ret = gpio_request(S3C64XX_GPK(1), "wifi control"); |
| if (ret < 0) { |
| pr_err("%s: failed to get GPK1\n", __func__); |
| return ret; |
| } |
| |
| ret = gpio_request(S3C64XX_GPK(2), "wifi reset"); |
| if (ret < 0) { |
| pr_err("%s: failed to get GPK2\n", __func__); |
| gpio_free(S3C64XX_GPK(1)); |
| return ret; |
| } |
| |
| /* turn power on */ |
| gpio_direction_output(S3C64XX_GPK(1), 1); |
| |
| /* reset device */ |
| gpio_direction_output(S3C64XX_GPK(2), 0); |
| mdelay(100); |
| gpio_set_value(S3C64XX_GPK(2), 1); |
| gpio_direction_input(S3C64XX_GPK(2)); |
| |
| return 0; |
| } |
| |
| static struct map_desc smartq_iodesc[] __initdata = {}; |
| void __init smartq_map_io(void) |
| { |
| s3c64xx_init_io(smartq_iodesc, ARRAY_SIZE(smartq_iodesc)); |
| s3c24xx_init_clocks(12000000); |
| s3c24xx_init_uarts(smartq_uartcfgs, ARRAY_SIZE(smartq_uartcfgs)); |
| |
| smartq_lcd_mode_set(); |
| } |
| |
| void __init smartq_machine_init(void) |
| { |
| s3c_i2c0_set_platdata(NULL); |
| s3c_hwmon_set_platdata(&smartq_hwmon_pdata); |
| s3c_sdhci1_set_platdata(&smartq_internal_hsmmc_pdata); |
| s3c_sdhci2_set_platdata(&smartq_internal_hsmmc_pdata); |
| s3c24xx_ts_set_platdata(&smartq_touchscreen_pdata); |
| |
| WARN_ON(smartq_lcd_setup_gpio()); |
| WARN_ON(smartq_power_off_init()); |
| WARN_ON(smartq_usb_host_init()); |
| WARN_ON(smartq_usb_otg_init()); |
| WARN_ON(smartq_wifi_init()); |
| |
| platform_add_devices(smartq_devices, ARRAY_SIZE(smartq_devices)); |
| } |