1 files changed, 424 insertions, 0 deletions
diff --git a/arch/arm/mach-s3c/mach-smartq.c b/arch/arm/mach-s3c/mach-smartq.c
new file mode 100644
index 000000000000..5b6e7c2a85ef
--- /dev/null
+++ b/arch/arm/mach-s3c/mach-smartq.c
@@ -0,0 +1,424 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Copyright (C) 2010 Maurus Cuelenaere
+
+#include <linux/delay.h>
+#include <linux/fb.h>
+#include <linux/gpio.h>
+#include <linux/gpio/machine.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/pwm.h>
+#include <linux/pwm_backlight.h>
+#include <linux/serial_core.h>
+#include <linux/serial_s3c.h>
+#include <linux/spi/spi_gpio.h>
+#include <linux/platform_data/s3c-hsotg.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/map.h>
+
+#include "map.h"
+#include "regs-gpio.h"
+#include "gpio-samsung.h"
+
+#include "cpu.h"
+#include "devs.h"
+#include <linux/platform_data/i2c-s3c2410.h>
+#include "gpio-cfg.h"
+#include <linux/platform_data/hwmon-s3c.h>
+#include <linux/platform_data/usb-ohci-s3c2410.h>
+#include "sdhci.h"
+#include <linux/platform_data/touchscreen-s3c2410.h>
+
+#include <video/platform_lcd.h>
+
+#include "s3c64xx.h"
+#include "mach-smartq.h"
+#include "regs-modem-s3c64xx.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_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 gpiod_lookup_table smartq_usb_otg_vbus_gpiod_table = {
+	.dev_id = "gpio-vbus",
+	.table = {
+		GPIO_LOOKUP("GPL", 9, "vbus", GPIO_ACTIVE_LOW),
+		{ },
+	},
+};
+
+static struct platform_device smartq_usb_otg_vbus_dev = {
+	.name			= "gpio-vbus",
+};
+
+static struct pwm_lookup smartq_pwm_lookup[] = {
+	PWM_LOOKUP("samsung-pwm", 1, "pwm-backlight.0", NULL,
+		   1000000000 / (1000 * 20), PWM_POLARITY_NORMAL),
+};
+
+static int 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 = {
+	.max_brightness	= 1000,
+	.dft_brightness	= 600,
+	.init		= smartq_bl_init,
+};
+
+static struct platform_device smartq_backlight_device = {
+	.name		= "pwm-backlight",
+	.dev		= {
+		.parent	= &samsung_device_pwm.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,
+	.cd_type		= S3C_SDHCI_CD_PERMANENT,
+};
+
+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 struct dwc2_hsotg_plat smartq_hsotg_pdata;
+
+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 = {
+	.num_chipselect	= 1,
+};
+
+static struct platform_device smartq_lcd_control_device = {
+	.name			= "spi_gpio",
+	.id			= 1,
+	.dev.platform_data	= &smartq_lcd_control,
+};
+
+static struct gpiod_lookup_table smartq_lcd_control_gpiod_table = {
+	.dev_id         = "spi_gpio",
+	.table          = {
+		GPIO_LOOKUP("GPIOM", 1,
+			    "sck", GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP("GPIOM", 2,
+			    "mosi", GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP("GPIOM", 3,
+			    "miso", GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP("GPIOM", 0,
+			    "cs", GPIO_ACTIVE_HIGH),
+		{ },
+	},
+};
+
+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 i2c_board_info smartq_i2c_devs[] __initdata = {
+	{ I2C_BOARD_INFO("wm8987", 0x1a), },
+};
+
+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,
+	&samsung_device_pwm,
+	&s3c_device_usb_hsotg,
+	&s3c64xx_device_iis0,
+	&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_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));
+	s3c64xx_set_xtal_freq(12000000);
+	s3c64xx_set_xusbxti_freq(12000000);
+	s3c24xx_init_uarts(smartq_uartcfgs, ARRAY_SIZE(smartq_uartcfgs));
+	s3c64xx_set_timer_source(S3C64XX_PWM3, S3C64XX_PWM4);
+
+	smartq_lcd_mode_set();
+}
+
+static struct gpiod_lookup_table smartq_audio_gpios = {
+	.dev_id = "smartq-audio",
+	.table = {
+		GPIO_LOOKUP("GPL", 12, "headphone detect", 0),
+		GPIO_LOOKUP("GPK", 12, "amplifiers shutdown", 0),
+		{ },
+	},
+};
+
+void __init smartq_machine_init(void)
+{
+	s3c_i2c0_set_platdata(NULL);
+	dwc2_hsotg_set_platdata(&smartq_hsotg_pdata);
+	s3c_hwmon_set_platdata(&smartq_hwmon_pdata);
+	s3c_sdhci1_set_platdata(&smartq_internal_hsmmc_pdata);
+	s3c_sdhci2_set_platdata(&smartq_internal_hsmmc_pdata);
+	s3c64xx_ts_set_platdata(&smartq_touchscreen_pdata);
+
+	i2c_register_board_info(0, smartq_i2c_devs,
+				ARRAY_SIZE(smartq_i2c_devs));
+
+	WARN_ON(smartq_lcd_setup_gpio());
+	WARN_ON(smartq_power_off_init());
+	WARN_ON(smartq_usb_host_init());
+	WARN_ON(smartq_wifi_init());
+
+	pwm_add_table(smartq_pwm_lookup, ARRAY_SIZE(smartq_pwm_lookup));
+	gpiod_add_lookup_table(&smartq_lcd_control_gpiod_table);
+	gpiod_add_lookup_table(&smartq_usb_otg_vbus_gpiod_table);
+	platform_add_devices(smartq_devices, ARRAY_SIZE(smartq_devices));
+
+	gpiod_add_lookup_table(&smartq_audio_gpios);
+	platform_device_register_simple("smartq-audio", -1, NULL, 0);
+}