| /* linux/arch/arm/mach-s3c2410/mach-h1940.c |
| * |
| * Copyright (c) 2003-2005 Simtec Electronics |
| * Ben Dooks <ben@simtec.co.uk> |
| * |
| * http://www.handhelds.org/projects/h1940.html |
| * |
| * 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/kernel.h> |
| #include <linux/types.h> |
| #include <linux/interrupt.h> |
| #include <linux/list.h> |
| #include <linux/memblock.h> |
| #include <linux/timer.h> |
| #include <linux/init.h> |
| #include <linux/sysdev.h> |
| #include <linux/serial_core.h> |
| #include <linux/platform_device.h> |
| #include <linux/io.h> |
| #include <linux/gpio.h> |
| #include <linux/pwm_backlight.h> |
| #include <linux/i2c.h> |
| #include <video/platform_lcd.h> |
| |
| #include <linux/mmc/host.h> |
| |
| #include <asm/mach/arch.h> |
| #include <asm/mach/map.h> |
| #include <asm/mach/irq.h> |
| |
| #include <mach/hardware.h> |
| #include <asm/irq.h> |
| #include <asm/mach-types.h> |
| |
| #include <plat/regs-serial.h> |
| #include <mach/regs-lcd.h> |
| #include <mach/regs-clock.h> |
| |
| #include <mach/regs-gpio.h> |
| #include <mach/gpio-fns.h> |
| #include <mach/gpio-nrs.h> |
| |
| #include <mach/h1940.h> |
| #include <mach/h1940-latch.h> |
| #include <mach/fb.h> |
| #include <plat/udc.h> |
| #include <plat/iic.h> |
| |
| #include <plat/gpio-cfg.h> |
| #include <plat/clock.h> |
| #include <plat/devs.h> |
| #include <plat/cpu.h> |
| #include <plat/pll.h> |
| #include <plat/pm.h> |
| #include <plat/mci.h> |
| #include <plat/ts.h> |
| |
| #include <sound/uda1380.h> |
| |
| #define H1940_LATCH ((void __force __iomem *)0xF8000000) |
| |
| #define H1940_PA_LATCH S3C2410_CS2 |
| |
| #define H1940_LATCH_BIT(x) (1 << ((x) + 16 - S3C_GPIO_END)) |
| |
| static struct map_desc h1940_iodesc[] __initdata = { |
| [0] = { |
| .virtual = (unsigned long)H1940_LATCH, |
| .pfn = __phys_to_pfn(H1940_PA_LATCH), |
| .length = SZ_16K, |
| .type = MT_DEVICE |
| }, |
| }; |
| |
| #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK |
| #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB |
| #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE |
| |
| static struct s3c2410_uartcfg h1940_uartcfgs[] __initdata = { |
| [0] = { |
| .hwport = 0, |
| .flags = 0, |
| .ucon = 0x3c5, |
| .ulcon = 0x03, |
| .ufcon = 0x51, |
| }, |
| [1] = { |
| .hwport = 1, |
| .flags = 0, |
| .ucon = 0x245, |
| .ulcon = 0x03, |
| .ufcon = 0x00, |
| }, |
| /* IR port */ |
| [2] = { |
| .hwport = 2, |
| .flags = 0, |
| .uart_flags = UPF_CONS_FLOW, |
| .ucon = 0x3c5, |
| .ulcon = 0x43, |
| .ufcon = 0x51, |
| } |
| }; |
| |
| /* Board control latch control */ |
| |
| static unsigned int latch_state; |
| |
| static void h1940_latch_control(unsigned int clear, unsigned int set) |
| { |
| unsigned long flags; |
| |
| local_irq_save(flags); |
| |
| latch_state &= ~clear; |
| latch_state |= set; |
| |
| __raw_writel(latch_state, H1940_LATCH); |
| |
| local_irq_restore(flags); |
| } |
| |
| static inline int h1940_gpiolib_to_latch(int offset) |
| { |
| return 1 << (offset + 16); |
| } |
| |
| static void h1940_gpiolib_latch_set(struct gpio_chip *chip, |
| unsigned offset, int value) |
| { |
| int latch_bit = h1940_gpiolib_to_latch(offset); |
| |
| h1940_latch_control(value ? 0 : latch_bit, |
| value ? latch_bit : 0); |
| } |
| |
| static int h1940_gpiolib_latch_output(struct gpio_chip *chip, |
| unsigned offset, int value) |
| { |
| h1940_gpiolib_latch_set(chip, offset, value); |
| return 0; |
| } |
| |
| static int h1940_gpiolib_latch_get(struct gpio_chip *chip, |
| unsigned offset) |
| { |
| return (latch_state >> (offset + 16)) & 1; |
| } |
| |
| struct gpio_chip h1940_latch_gpiochip = { |
| .base = H1940_LATCH_GPIO(0), |
| .owner = THIS_MODULE, |
| .label = "H1940_LATCH", |
| .ngpio = 16, |
| .direction_output = h1940_gpiolib_latch_output, |
| .set = h1940_gpiolib_latch_set, |
| .get = h1940_gpiolib_latch_get, |
| }; |
| |
| static void h1940_udc_pullup(enum s3c2410_udc_cmd_e cmd) |
| { |
| printk(KERN_DEBUG "udc: pullup(%d)\n",cmd); |
| |
| switch (cmd) |
| { |
| case S3C2410_UDC_P_ENABLE : |
| gpio_set_value(H1940_LATCH_USB_DP, 1); |
| break; |
| case S3C2410_UDC_P_DISABLE : |
| gpio_set_value(H1940_LATCH_USB_DP, 0); |
| break; |
| case S3C2410_UDC_P_RESET : |
| break; |
| default: |
| break; |
| } |
| } |
| |
| static struct s3c2410_udc_mach_info h1940_udc_cfg __initdata = { |
| .udc_command = h1940_udc_pullup, |
| .vbus_pin = S3C2410_GPG(5), |
| .vbus_pin_inverted = 1, |
| }; |
| |
| static struct s3c2410_ts_mach_info h1940_ts_cfg __initdata = { |
| .delay = 10000, |
| .presc = 49, |
| .oversampling_shift = 2, |
| .cfg_gpio = s3c24xx_ts_cfg_gpio, |
| }; |
| |
| /** |
| * Set lcd on or off |
| **/ |
| static struct s3c2410fb_display h1940_lcd __initdata = { |
| .lcdcon5= S3C2410_LCDCON5_FRM565 | \ |
| S3C2410_LCDCON5_INVVLINE | \ |
| S3C2410_LCDCON5_HWSWP, |
| |
| .type = S3C2410_LCDCON1_TFT, |
| .width = 240, |
| .height = 320, |
| .pixclock = 260000, |
| .xres = 240, |
| .yres = 320, |
| .bpp = 16, |
| .left_margin = 8, |
| .right_margin = 20, |
| .hsync_len = 4, |
| .upper_margin = 8, |
| .lower_margin = 7, |
| .vsync_len = 1, |
| }; |
| |
| static struct s3c2410fb_mach_info h1940_fb_info __initdata = { |
| .displays = &h1940_lcd, |
| .num_displays = 1, |
| .default_display = 0, |
| |
| .lpcsel= 0x02, |
| .gpccon= 0xaa940659, |
| .gpccon_mask= 0xffffffff, |
| .gpcup= 0x0000ffff, |
| .gpcup_mask= 0xffffffff, |
| .gpdcon= 0xaa84aaa0, |
| .gpdcon_mask= 0xffffffff, |
| .gpdup= 0x0000faff, |
| .gpdup_mask= 0xffffffff, |
| }; |
| |
| static struct platform_device h1940_device_leds = { |
| .name = "h1940-leds", |
| .id = -1, |
| }; |
| |
| static struct platform_device h1940_device_bluetooth = { |
| .name = "h1940-bt", |
| .id = -1, |
| }; |
| |
| static void h1940_set_mmc_power(unsigned char power_mode, unsigned short vdd) |
| { |
| switch (power_mode) { |
| case MMC_POWER_OFF: |
| gpio_set_value(H1940_LATCH_SD_POWER, 0); |
| break; |
| case MMC_POWER_UP: |
| case MMC_POWER_ON: |
| gpio_set_value(H1940_LATCH_SD_POWER, 1); |
| break; |
| default: |
| break; |
| }; |
| } |
| |
| static struct s3c24xx_mci_pdata h1940_mmc_cfg __initdata = { |
| .gpio_detect = S3C2410_GPF(5), |
| .gpio_wprotect = S3C2410_GPH(8), |
| .set_power = h1940_set_mmc_power, |
| .ocr_avail = MMC_VDD_32_33, |
| }; |
| |
| static int h1940_backlight_init(struct device *dev) |
| { |
| gpio_request(S3C2410_GPB(0), "Backlight"); |
| |
| gpio_direction_output(S3C2410_GPB(0), 0); |
| s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE); |
| s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0); |
| gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 1); |
| |
| return 0; |
| } |
| |
| static int h1940_backlight_notify(struct device *dev, int brightness) |
| { |
| if (!brightness) { |
| gpio_direction_output(S3C2410_GPB(0), 1); |
| gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 0); |
| } else { |
| gpio_direction_output(S3C2410_GPB(0), 0); |
| s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE); |
| s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0); |
| gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 1); |
| } |
| return brightness; |
| } |
| |
| static void h1940_backlight_exit(struct device *dev) |
| { |
| gpio_direction_output(S3C2410_GPB(0), 1); |
| gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 0); |
| } |
| |
| |
| static struct platform_pwm_backlight_data backlight_data = { |
| .pwm_id = 0, |
| .max_brightness = 100, |
| .dft_brightness = 50, |
| /* tcnt = 0x31 */ |
| .pwm_period_ns = 36296, |
| .init = h1940_backlight_init, |
| .notify = h1940_backlight_notify, |
| .exit = h1940_backlight_exit, |
| }; |
| |
| static struct platform_device h1940_backlight = { |
| .name = "pwm-backlight", |
| .dev = { |
| .parent = &s3c_device_timer[0].dev, |
| .platform_data = &backlight_data, |
| }, |
| .id = -1, |
| }; |
| |
| static void h1940_lcd_power_set(struct plat_lcd_data *pd, |
| unsigned int power) |
| { |
| int value; |
| |
| if (!power) { |
| gpio_set_value(S3C2410_GPC(0), 0); |
| /* wait for 3ac */ |
| do { |
| value = gpio_get_value(S3C2410_GPC(6)); |
| } while (value); |
| |
| gpio_set_value(H1940_LATCH_LCD_P2, 0); |
| gpio_set_value(H1940_LATCH_LCD_P3, 0); |
| gpio_set_value(H1940_LATCH_LCD_P4, 0); |
| |
| gpio_direction_output(S3C2410_GPC(1), 0); |
| gpio_direction_output(S3C2410_GPC(4), 0); |
| |
| gpio_set_value(H1940_LATCH_LCD_P1, 0); |
| gpio_set_value(H1940_LATCH_LCD_P0, 0); |
| |
| gpio_set_value(S3C2410_GPC(5), 0); |
| |
| } else { |
| gpio_set_value(H1940_LATCH_LCD_P0, 1); |
| gpio_set_value(H1940_LATCH_LCD_P1, 1); |
| |
| s3c_gpio_cfgpin(S3C2410_GPC(1), S3C_GPIO_SFN(2)); |
| s3c_gpio_cfgpin(S3C2410_GPC(4), S3C_GPIO_SFN(2)); |
| |
| gpio_set_value(S3C2410_GPC(5), 1); |
| gpio_set_value(S3C2410_GPC(0), 1); |
| |
| gpio_set_value(H1940_LATCH_LCD_P3, 1); |
| gpio_set_value(H1940_LATCH_LCD_P2, 1); |
| gpio_set_value(H1940_LATCH_LCD_P4, 1); |
| } |
| } |
| |
| static struct plat_lcd_data h1940_lcd_power_data = { |
| .set_power = h1940_lcd_power_set, |
| }; |
| |
| static struct platform_device h1940_lcd_powerdev = { |
| .name = "platform-lcd", |
| .dev.parent = &s3c_device_lcd.dev, |
| .dev.platform_data = &h1940_lcd_power_data, |
| }; |
| |
| static struct uda1380_platform_data uda1380_info = { |
| .gpio_power = H1940_LATCH_UDA_POWER, |
| .gpio_reset = S3C2410_GPA(12), |
| .dac_clk = UDA1380_DAC_CLK_SYSCLK, |
| }; |
| |
| static struct i2c_board_info h1940_i2c_devices[] = { |
| { |
| I2C_BOARD_INFO("uda1380", 0x1a), |
| .platform_data = &uda1380_info, |
| }, |
| }; |
| |
| static struct platform_device *h1940_devices[] __initdata = { |
| &s3c_device_ohci, |
| &s3c_device_lcd, |
| &s3c_device_wdt, |
| &s3c_device_i2c0, |
| &s3c_device_iis, |
| &samsung_asoc_dma, |
| &s3c_device_usbgadget, |
| &h1940_device_leds, |
| &h1940_device_bluetooth, |
| &s3c_device_sdi, |
| &s3c_device_rtc, |
| &s3c_device_timer[0], |
| &h1940_backlight, |
| &h1940_lcd_powerdev, |
| &s3c_device_adc, |
| &s3c_device_ts, |
| }; |
| |
| static void __init h1940_map_io(void) |
| { |
| s3c24xx_init_io(h1940_iodesc, ARRAY_SIZE(h1940_iodesc)); |
| s3c24xx_init_clocks(0); |
| s3c24xx_init_uarts(h1940_uartcfgs, ARRAY_SIZE(h1940_uartcfgs)); |
| |
| /* setup PM */ |
| |
| #ifdef CONFIG_PM_H1940 |
| memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 1024); |
| #endif |
| s3c_pm_init(); |
| |
| /* Add latch gpio chip, set latch initial value */ |
| h1940_latch_control(0, 0); |
| WARN_ON(gpiochip_add(&h1940_latch_gpiochip)); |
| } |
| |
| /* H1940 and RX3715 need to reserve this for suspend */ |
| static void __init h1940_reserve(void) |
| { |
| memblock_reserve(0x30003000, 0x1000); |
| memblock_reserve(0x30081000, 0x1000); |
| } |
| |
| static void __init h1940_init_irq(void) |
| { |
| s3c24xx_init_irq(); |
| } |
| |
| static void __init h1940_init(void) |
| { |
| u32 tmp; |
| |
| s3c24xx_fb_set_platdata(&h1940_fb_info); |
| s3c24xx_mci_set_platdata(&h1940_mmc_cfg); |
| s3c24xx_udc_set_platdata(&h1940_udc_cfg); |
| s3c24xx_ts_set_platdata(&h1940_ts_cfg); |
| s3c_i2c0_set_platdata(NULL); |
| |
| /* Turn off suspend on both USB ports, and switch the |
| * selectable USB port to USB device mode. */ |
| |
| s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST | |
| S3C2410_MISCCR_USBSUSPND0 | |
| S3C2410_MISCCR_USBSUSPND1, 0x0); |
| |
| tmp = (0x78 << S3C24XX_PLLCON_MDIVSHIFT) |
| | (0x02 << S3C24XX_PLLCON_PDIVSHIFT) |
| | (0x03 << S3C24XX_PLLCON_SDIVSHIFT); |
| writel(tmp, S3C2410_UPLLCON); |
| |
| gpio_request(S3C2410_GPC(0), "LCD power"); |
| gpio_request(S3C2410_GPC(1), "LCD power"); |
| gpio_request(S3C2410_GPC(4), "LCD power"); |
| gpio_request(S3C2410_GPC(5), "LCD power"); |
| gpio_request(S3C2410_GPC(6), "LCD power"); |
| gpio_request(H1940_LATCH_LCD_P0, "LCD power"); |
| gpio_request(H1940_LATCH_LCD_P1, "LCD power"); |
| gpio_request(H1940_LATCH_LCD_P2, "LCD power"); |
| gpio_request(H1940_LATCH_LCD_P3, "LCD power"); |
| gpio_request(H1940_LATCH_LCD_P4, "LCD power"); |
| gpio_request(H1940_LATCH_MAX1698_nSHUTDOWN, "LCD power"); |
| gpio_direction_output(S3C2410_GPC(0), 0); |
| gpio_direction_output(S3C2410_GPC(1), 0); |
| gpio_direction_output(S3C2410_GPC(4), 0); |
| gpio_direction_output(S3C2410_GPC(5), 0); |
| gpio_direction_input(S3C2410_GPC(6)); |
| gpio_direction_output(H1940_LATCH_LCD_P0, 0); |
| gpio_direction_output(H1940_LATCH_LCD_P1, 0); |
| gpio_direction_output(H1940_LATCH_LCD_P2, 0); |
| gpio_direction_output(H1940_LATCH_LCD_P3, 0); |
| gpio_direction_output(H1940_LATCH_LCD_P4, 0); |
| gpio_direction_output(H1940_LATCH_MAX1698_nSHUTDOWN, 0); |
| |
| gpio_request(H1940_LATCH_USB_DP, "USB pullup"); |
| gpio_direction_output(H1940_LATCH_USB_DP, 0); |
| |
| gpio_request(H1940_LATCH_SD_POWER, "SD power"); |
| gpio_direction_output(H1940_LATCH_SD_POWER, 0); |
| |
| platform_add_devices(h1940_devices, ARRAY_SIZE(h1940_devices)); |
| |
| i2c_register_board_info(0, h1940_i2c_devices, |
| ARRAY_SIZE(h1940_i2c_devices)); |
| } |
| |
| MACHINE_START(H1940, "IPAQ-H1940") |
| /* Maintainer: Ben Dooks <ben-linux@fluff.org> */ |
| .boot_params = S3C2410_SDRAM_PA + 0x100, |
| .map_io = h1940_map_io, |
| .reserve = h1940_reserve, |
| .init_irq = h1940_init_irq, |
| .init_machine = h1940_init, |
| .timer = &s3c24xx_timer, |
| MACHINE_END |