1 files changed, 363 insertions, 0 deletions

diff --git a/arch/arm/mach-s3c64xx/mach-smartq.c b/arch/arm/mach-s3c64xx/mach-smartq.c
new file mode 100644
index 000000000000..028d080dcd35
--- /dev/null
+++ b/arch/arm/mach-s3c64xx/mach-smartq.c
@@ -0,0 +1,363 @@
+/*
+ * 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/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 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_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_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));
+}