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authorAnton Arapov <anton@redhat.com>2012-04-16 10:05:28 +0200
committerAnton Arapov <anton@redhat.com>2012-04-16 10:05:28 +0200
commitb4b6116a13633898cf868f2f103c96a90c4c20f8 (patch)
tree93d1b7e2cfcdf473d8d4ff3ad141fa864f8491f6 /arch/arm/mach-s3c64xx/mach-smartq.c
parentedd4be777c953e5faafc80d091d3084b4343f5d3 (diff)
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fedora kernel: d9aad82f3319f3cfd1aebc01234254ef0c37ad84v3.3.2-1
Signed-off-by: Anton Arapov <anton@redhat.com>
Diffstat (limited to 'arch/arm/mach-s3c64xx/mach-smartq.c')
-rw-r--r--arch/arm/mach-s3c64xx/mach-smartq.c401
1 files changed, 401 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 00000000000..ce31db13623
--- /dev/null
+++ b/arch/arm/mach-s3c64xx/mach-smartq.c
@@ -0,0 +1,401 @@
+/*
+ * 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>
+
+#include "common.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 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,
+ .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 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 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,
+ &s3c_device_timer[1],
+ &s3c_device_ts,
+ &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_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);
+
+ 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_usb_otg_init());
+ WARN_ON(smartq_wifi_init());
+
+ platform_add_devices(smartq_devices, ARRAY_SIZE(smartq_devices));
+}