ARM: S3C6410: Add basic support for SmartQ machines
This adds new machine definitions for the SmartQ 5 and 7. Signed-off-by: Maurus Cuelenaere <mcuelenaere@gmail.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
This commit is contained in:
Maurus Cuelenaere
کامیت شده توسط
Ben Dooks
Ben Dooks
والد
45c8fa8784
کامیت
a2f7bffa29
363
arch/arm/mach-s3c64xx/mach-smartq.c
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363
arch/arm/mach-s3c64xx/mach-smartq.c
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/*
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* linux/arch/arm/mach-s3c64xx/mach-smartq.c
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*
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* Copyright (C) 2010 Maurus Cuelenaere
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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*/
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#include <linux/delay.h>
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#include <linux/fb.h>
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#include <linux/gpio.h>
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/pwm_backlight.h>
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#include <linux/serial_core.h>
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#include <linux/usb/gpio_vbus.h>
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#include <asm/mach-types.h>
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#include <asm/mach/map.h>
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#include <mach/map.h>
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#include <mach/regs-gpio.h>
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#include <mach/regs-modem.h>
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#include <plat/clock.h>
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#include <plat/cpu.h>
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#include <plat/devs.h>
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#include <plat/iic.h>
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#include <plat/gpio-cfg.h>
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#include <plat/hwmon.h>
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#include <plat/regs-serial.h>
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#include <plat/udc-hs.h>
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#include <plat/usb-control.h>
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#include <plat/sdhci.h>
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#include <plat/ts.h>
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#include <video/platform_lcd.h>
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#define UCON S3C2410_UCON_DEFAULT
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#define ULCON (S3C2410_LCON_CS8 | S3C2410_LCON_PNONE)
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#define UFCON (S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE)
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static struct s3c2410_uartcfg smartq_uartcfgs[] __initdata = {
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[0] = {
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.hwport = 0,
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.flags = 0,
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.ucon = UCON,
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.ulcon = ULCON,
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.ufcon = UFCON,
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},
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[1] = {
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.hwport = 1,
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.flags = 0,
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.ucon = UCON,
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.ulcon = ULCON,
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.ufcon = UFCON,
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},
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[2] = {
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.hwport = 2,
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.flags = 0,
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.ucon = UCON,
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.ulcon = ULCON,
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.ufcon = UFCON,
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},
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};
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static void smartq_usb_host_powercontrol(int port, int to)
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{
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pr_debug("%s(%d, %d)\n", __func__, port, to);
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if (port == 0) {
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gpio_set_value(S3C64XX_GPL(0), to);
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gpio_set_value(S3C64XX_GPL(1), to);
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}
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}
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static irqreturn_t smartq_usb_host_ocirq(int irq, void *pw)
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{
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struct s3c2410_hcd_info *info = pw;
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if (gpio_get_value(S3C64XX_GPL(10)) == 0) {
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pr_debug("%s: over-current irq (oc detected)\n", __func__);
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s3c2410_usb_report_oc(info, 3);
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} else {
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pr_debug("%s: over-current irq (oc cleared)\n", __func__);
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s3c2410_usb_report_oc(info, 0);
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}
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return IRQ_HANDLED;
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}
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static void smartq_usb_host_enableoc(struct s3c2410_hcd_info *info, int on)
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{
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int ret;
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/* This isn't present on a SmartQ 5 board */
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if (machine_is_smartq5())
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return;
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if (on) {
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ret = request_irq(gpio_to_irq(S3C64XX_GPL(10)),
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smartq_usb_host_ocirq, IRQF_DISABLED |
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IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
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"USB host overcurrent", info);
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if (ret != 0)
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pr_err("failed to request usb oc irq: %d\n", ret);
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} else {
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free_irq(gpio_to_irq(S3C64XX_GPL(10)), info);
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}
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}
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static struct s3c2410_hcd_info smartq_usb_host_info = {
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.port[0] = {
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.flags = S3C_HCDFLG_USED
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},
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.port[1] = {
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.flags = 0
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},
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.power_control = smartq_usb_host_powercontrol,
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.enable_oc = smartq_usb_host_enableoc,
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};
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static struct gpio_vbus_mach_info smartq_usb_otg_vbus_pdata = {
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.gpio_vbus = S3C64XX_GPL(9),
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.gpio_pullup = -1,
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.gpio_vbus_inverted = true,
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};
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static struct platform_device smartq_usb_otg_vbus_dev = {
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.name = "gpio-vbus",
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.dev.platform_data = &smartq_usb_otg_vbus_pdata,
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};
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static int __init smartq_bl_init(struct device *dev)
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{
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s3c_gpio_cfgpin(S3C64XX_GPF(15), S3C_GPIO_SFN(2));
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return 0;
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}
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static struct platform_pwm_backlight_data smartq_backlight_data = {
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.pwm_id = 1,
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.max_brightness = 1000,
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.dft_brightness = 600,
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.pwm_period_ns = 1000000000 / (1000 * 20),
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.init = smartq_bl_init,
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};
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static struct platform_device smartq_backlight_device = {
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.name = "pwm-backlight",
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.dev = {
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.parent = &s3c_device_timer[1].dev,
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.platform_data = &smartq_backlight_data,
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},
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};
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static struct s3c2410_ts_mach_info smartq_touchscreen_pdata __initdata = {
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.delay = 65535,
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.presc = 99,
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.oversampling_shift = 4,
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};
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static struct s3c_sdhci_platdata smartq_internal_hsmmc_pdata = {
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.max_width = 4,
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/*.broken_card_detection = true,*/
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};
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static struct s3c_hwmon_pdata smartq_hwmon_pdata __initdata = {
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/* Battery voltage (?-4.2V) */
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.in[0] = &(struct s3c_hwmon_chcfg) {
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.name = "smartq:battery-voltage",
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.mult = 3300,
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.div = 2048,
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},
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/* Reference voltage (1.2V) */
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.in[1] = &(struct s3c_hwmon_chcfg) {
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.name = "smartq:reference-voltage",
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.mult = 3300,
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.div = 4096,
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},
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};
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static void smartq_lcd_power_set(struct plat_lcd_data *pd, unsigned int power)
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{
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gpio_direction_output(S3C64XX_GPM(3), power);
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}
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static struct plat_lcd_data smartq_lcd_power_data = {
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.set_power = smartq_lcd_power_set,
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};
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static struct platform_device smartq_lcd_power_device = {
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.name = "platform-lcd",
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.dev.parent = &s3c_device_fb.dev,
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.dev.platform_data = &smartq_lcd_power_data,
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};
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static struct platform_device *smartq_devices[] __initdata = {
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&s3c_device_hsmmc1, /* Init iNAND first, ... */
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&s3c_device_hsmmc0, /* ... then the external SD card */
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&s3c_device_hsmmc2,
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&s3c_device_adc,
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&s3c_device_fb,
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&s3c_device_hwmon,
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&s3c_device_i2c0,
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&s3c_device_ohci,
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&s3c_device_rtc,
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&s3c_device_timer[1],
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&s3c_device_ts,
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&s3c_device_usb_hsotg,
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&smartq_backlight_device,
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&smartq_lcd_power_device,
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&smartq_usb_otg_vbus_dev,
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};
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static void __init smartq_lcd_mode_set(void)
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{
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u32 tmp;
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/* set the LCD type */
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tmp = __raw_readl(S3C64XX_SPCON);
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tmp &= ~S3C64XX_SPCON_LCD_SEL_MASK;
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tmp |= S3C64XX_SPCON_LCD_SEL_RGB;
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__raw_writel(tmp, S3C64XX_SPCON);
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/* remove the LCD bypass */
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tmp = __raw_readl(S3C64XX_MODEM_MIFPCON);
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tmp &= ~MIFPCON_LCD_BYPASS;
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__raw_writel(tmp, S3C64XX_MODEM_MIFPCON);
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}
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static void smartq_power_off(void)
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{
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gpio_direction_output(S3C64XX_GPK(15), 1);
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}
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static int __init smartq_power_off_init(void)
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{
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int ret;
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ret = gpio_request(S3C64XX_GPK(15), "Power control");
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if (ret < 0) {
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pr_err("%s: failed to get GPK15\n", __func__);
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return ret;
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}
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/* leave power on */
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gpio_direction_output(S3C64XX_GPK(15), 0);
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pm_power_off = smartq_power_off;
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return ret;
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}
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static int __init smartq_usb_host_init(void)
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{
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int ret;
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ret = gpio_request(S3C64XX_GPL(0), "USB power control");
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if (ret < 0) {
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pr_err("%s: failed to get GPL0\n", __func__);
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return ret;
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}
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ret = gpio_request(S3C64XX_GPL(1), "USB host power control");
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if (ret < 0) {
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pr_err("%s: failed to get GPL1\n", __func__);
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goto err;
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}
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if (!machine_is_smartq5()) {
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/* This isn't present on a SmartQ 5 board */
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ret = gpio_request(S3C64XX_GPL(10), "USB host overcurrent");
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if (ret < 0) {
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pr_err("%s: failed to get GPL10\n", __func__);
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goto err2;
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}
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}
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/* turn power off */
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gpio_direction_output(S3C64XX_GPL(0), 0);
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gpio_direction_output(S3C64XX_GPL(1), 0);
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if (!machine_is_smartq5())
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gpio_direction_input(S3C64XX_GPL(10));
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s3c_device_ohci.dev.platform_data = &smartq_usb_host_info;
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return 0;
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err2:
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gpio_free(S3C64XX_GPL(1));
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err:
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gpio_free(S3C64XX_GPL(0));
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return ret;
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}
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static int __init smartq_usb_otg_init(void)
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{
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clk_xusbxti.rate = 12000000;
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return 0;
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}
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static int __init smartq_wifi_init(void)
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{
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int ret;
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ret = gpio_request(S3C64XX_GPK(1), "wifi control");
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if (ret < 0) {
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pr_err("%s: failed to get GPK1\n", __func__);
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return ret;
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}
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ret = gpio_request(S3C64XX_GPK(2), "wifi reset");
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if (ret < 0) {
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pr_err("%s: failed to get GPK2\n", __func__);
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gpio_free(S3C64XX_GPK(1));
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return ret;
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}
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/* turn power on */
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gpio_direction_output(S3C64XX_GPK(1), 1);
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/* reset device */
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gpio_direction_output(S3C64XX_GPK(2), 0);
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mdelay(100);
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gpio_set_value(S3C64XX_GPK(2), 1);
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gpio_direction_input(S3C64XX_GPK(2));
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return 0;
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}
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static struct map_desc smartq_iodesc[] __initdata = {};
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void __init smartq_map_io(void)
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{
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s3c64xx_init_io(smartq_iodesc, ARRAY_SIZE(smartq_iodesc));
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s3c24xx_init_clocks(12000000);
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s3c24xx_init_uarts(smartq_uartcfgs, ARRAY_SIZE(smartq_uartcfgs));
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smartq_lcd_mode_set();
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}
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void __init smartq_machine_init(void)
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{
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s3c_i2c0_set_platdata(NULL);
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s3c_hwmon_set_platdata(&smartq_hwmon_pdata);
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s3c_sdhci1_set_platdata(&smartq_internal_hsmmc_pdata);
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s3c_sdhci2_set_platdata(&smartq_internal_hsmmc_pdata);
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s3c24xx_ts_set_platdata(&smartq_touchscreen_pdata);
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WARN_ON(smartq_power_off_init());
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WARN_ON(smartq_usb_host_init());
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WARN_ON(smartq_usb_otg_init());
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WARN_ON(smartq_wifi_init());
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platform_add_devices(smartq_devices, ARRAY_SIZE(smartq_devices));
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}
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