361 lines
8.1 KiB
C
361 lines
8.1 KiB
C
/* linux/arch/arm/mach-s3c2410/mach-h1940.c
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*
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* Copyright (c) 2003-2005 Simtec Electronics
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* Ben Dooks <ben@simtec.co.uk>
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*
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* http://www.handhelds.org/projects/h1940.html
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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/kernel.h>
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#include <linux/types.h>
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#include <linux/interrupt.h>
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#include <linux/list.h>
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#include <linux/memblock.h>
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#include <linux/timer.h>
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#include <linux/init.h>
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#include <linux/sysdev.h>
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#include <linux/serial_core.h>
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#include <linux/platform_device.h>
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#include <linux/io.h>
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#include <linux/gpio.h>
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#include <linux/pwm_backlight.h>
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#include <video/platform_lcd.h>
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#include <linux/mmc/host.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include <asm/mach/irq.h>
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#include <mach/hardware.h>
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#include <asm/irq.h>
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#include <asm/mach-types.h>
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#include <plat/regs-serial.h>
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#include <mach/regs-lcd.h>
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#include <mach/regs-clock.h>
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#include <mach/regs-gpio.h>
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#include <mach/gpio-fns.h>
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#include <mach/gpio-nrs.h>
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#include <mach/h1940.h>
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#include <mach/h1940-latch.h>
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#include <mach/fb.h>
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#include <plat/udc.h>
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#include <plat/iic.h>
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#include <plat/gpio-cfg.h>
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#include <plat/clock.h>
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#include <plat/devs.h>
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#include <plat/cpu.h>
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#include <plat/pll.h>
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#include <plat/pm.h>
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#include <plat/mci.h>
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#include <plat/ts.h>
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static struct map_desc h1940_iodesc[] __initdata = {
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[0] = {
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.virtual = (unsigned long)H1940_LATCH,
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.pfn = __phys_to_pfn(H1940_PA_LATCH),
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.length = SZ_16K,
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.type = MT_DEVICE
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},
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};
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#define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
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#define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
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#define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
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static struct s3c2410_uartcfg h1940_uartcfgs[] __initdata = {
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[0] = {
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.hwport = 0,
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.flags = 0,
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.ucon = 0x3c5,
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.ulcon = 0x03,
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.ufcon = 0x51,
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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 = 0x245,
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.ulcon = 0x03,
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.ufcon = 0x00,
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},
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/* IR port */
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[2] = {
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.hwport = 2,
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.flags = 0,
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.uart_flags = UPF_CONS_FLOW,
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.ucon = 0x3c5,
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.ulcon = 0x43,
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.ufcon = 0x51,
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}
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};
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/* Board control latch control */
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static unsigned int latch_state = H1940_LATCH_DEFAULT;
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void h1940_latch_control(unsigned int clear, unsigned int set)
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{
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unsigned long flags;
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local_irq_save(flags);
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latch_state &= ~clear;
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latch_state |= set;
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__raw_writel(latch_state, H1940_LATCH);
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local_irq_restore(flags);
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}
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EXPORT_SYMBOL_GPL(h1940_latch_control);
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static void h1940_udc_pullup(enum s3c2410_udc_cmd_e cmd)
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{
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printk(KERN_DEBUG "udc: pullup(%d)\n",cmd);
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switch (cmd)
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{
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case S3C2410_UDC_P_ENABLE :
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h1940_latch_control(0, H1940_LATCH_USB_DP);
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break;
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case S3C2410_UDC_P_DISABLE :
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h1940_latch_control(H1940_LATCH_USB_DP, 0);
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break;
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case S3C2410_UDC_P_RESET :
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break;
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default:
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break;
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}
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}
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static struct s3c2410_udc_mach_info h1940_udc_cfg __initdata = {
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.udc_command = h1940_udc_pullup,
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.vbus_pin = S3C2410_GPG(5),
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.vbus_pin_inverted = 1,
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};
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static struct s3c2410_ts_mach_info h1940_ts_cfg __initdata = {
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.delay = 10000,
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.presc = 49,
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.oversampling_shift = 2,
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.cfg_gpio = s3c24xx_ts_cfg_gpio,
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};
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/**
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* Set lcd on or off
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**/
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static struct s3c2410fb_display h1940_lcd __initdata = {
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.lcdcon5= S3C2410_LCDCON5_FRM565 | \
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S3C2410_LCDCON5_INVVLINE | \
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S3C2410_LCDCON5_HWSWP,
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.type = S3C2410_LCDCON1_TFT,
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.width = 240,
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.height = 320,
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.pixclock = 260000,
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.xres = 240,
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.yres = 320,
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.bpp = 16,
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.left_margin = 8,
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.right_margin = 20,
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.hsync_len = 4,
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.upper_margin = 8,
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.lower_margin = 7,
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.vsync_len = 1,
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};
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static struct s3c2410fb_mach_info h1940_fb_info __initdata = {
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.displays = &h1940_lcd,
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.num_displays = 1,
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.default_display = 0,
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.lpcsel= 0x02,
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.gpccon= 0xaa940659,
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.gpccon_mask= 0xffffffff,
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.gpcup= 0x0000ffff,
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.gpcup_mask= 0xffffffff,
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.gpdcon= 0xaa84aaa0,
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.gpdcon_mask= 0xffffffff,
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.gpdup= 0x0000faff,
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.gpdup_mask= 0xffffffff,
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};
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static struct platform_device h1940_device_leds = {
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.name = "h1940-leds",
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.id = -1,
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};
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static struct platform_device h1940_device_bluetooth = {
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.name = "h1940-bt",
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.id = -1,
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};
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static struct s3c24xx_mci_pdata h1940_mmc_cfg __initdata = {
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.gpio_detect = S3C2410_GPF(5),
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.gpio_wprotect = S3C2410_GPH(8),
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.set_power = NULL,
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.ocr_avail = MMC_VDD_32_33,
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};
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static int h1940_backlight_init(struct device *dev)
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{
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gpio_request(S3C2410_GPB(0), "Backlight");
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gpio_direction_output(S3C2410_GPB(0), 0);
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s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
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s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
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return 0;
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}
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static void h1940_backlight_exit(struct device *dev)
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{
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gpio_direction_output(S3C2410_GPB(0), 1);
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}
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static struct platform_pwm_backlight_data backlight_data = {
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.pwm_id = 0,
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.max_brightness = 100,
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.dft_brightness = 50,
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/* tcnt = 0x31 */
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.pwm_period_ns = 36296,
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.init = h1940_backlight_init,
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.exit = h1940_backlight_exit,
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};
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static struct platform_device h1940_backlight = {
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.name = "pwm-backlight",
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.dev = {
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.parent = &s3c_device_timer[0].dev,
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.platform_data = &backlight_data,
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},
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.id = -1,
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};
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static void h1940_lcd_power_set(struct plat_lcd_data *pd,
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unsigned int power)
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{
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int value;
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if (!power) {
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/* set to 3ec */
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gpio_direction_output(S3C2410_GPC(0), 0);
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/* wait for 3ac */
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do {
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value = gpio_get_value(S3C2410_GPC(6));
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} while (value);
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/* set to 38c */
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gpio_direction_output(S3C2410_GPC(5), 0);
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} else {
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/* Set to 3ac */
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gpio_direction_output(S3C2410_GPC(5), 1);
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/* Set to 3ad */
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gpio_direction_output(S3C2410_GPC(0), 1);
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}
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}
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static struct plat_lcd_data h1940_lcd_power_data = {
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.set_power = h1940_lcd_power_set,
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};
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static struct platform_device h1940_lcd_powerdev = {
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.name = "platform-lcd",
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.dev.parent = &s3c_device_lcd.dev,
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.dev.platform_data = &h1940_lcd_power_data,
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};
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static struct platform_device *h1940_devices[] __initdata = {
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&s3c_device_ohci,
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&s3c_device_lcd,
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&s3c_device_wdt,
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&s3c_device_i2c0,
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&s3c_device_iis,
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&s3c_device_usbgadget,
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&h1940_device_leds,
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&h1940_device_bluetooth,
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&s3c_device_sdi,
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&s3c_device_rtc,
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&s3c_device_timer[0],
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&h1940_backlight,
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&h1940_lcd_powerdev,
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&s3c_device_adc,
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&s3c_device_ts,
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};
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static void __init h1940_map_io(void)
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{
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s3c24xx_init_io(h1940_iodesc, ARRAY_SIZE(h1940_iodesc));
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s3c24xx_init_clocks(0);
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s3c24xx_init_uarts(h1940_uartcfgs, ARRAY_SIZE(h1940_uartcfgs));
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/* setup PM */
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#ifdef CONFIG_PM_H1940
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memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 1024);
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#endif
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s3c_pm_init();
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}
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/* H1940 and RX3715 need to reserve this for suspend */
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static void __init h1940_reserve(void)
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{
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memblock_reserve(0x30003000, 0x1000);
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memblock_reserve(0x30081000, 0x1000);
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}
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static void __init h1940_init_irq(void)
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{
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s3c24xx_init_irq();
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}
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static void __init h1940_init(void)
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{
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u32 tmp;
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s3c24xx_fb_set_platdata(&h1940_fb_info);
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s3c24xx_mci_set_platdata(&h1940_mmc_cfg);
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s3c24xx_udc_set_platdata(&h1940_udc_cfg);
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s3c24xx_ts_set_platdata(&h1940_ts_cfg);
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s3c_i2c0_set_platdata(NULL);
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/* Turn off suspend on both USB ports, and switch the
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* selectable USB port to USB device mode. */
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s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
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S3C2410_MISCCR_USBSUSPND0 |
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S3C2410_MISCCR_USBSUSPND1, 0x0);
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tmp = (0x78 << S3C24XX_PLLCON_MDIVSHIFT)
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| (0x02 << S3C24XX_PLLCON_PDIVSHIFT)
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| (0x03 << S3C24XX_PLLCON_SDIVSHIFT);
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writel(tmp, S3C2410_UPLLCON);
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gpio_request(S3C2410_GPC(0), "LCD power");
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gpio_request(S3C2410_GPC(5), "LCD power");
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gpio_request(S3C2410_GPC(6), "LCD power");
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gpio_direction_input(S3C2410_GPC(6));
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platform_add_devices(h1940_devices, ARRAY_SIZE(h1940_devices));
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}
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MACHINE_START(H1940, "IPAQ-H1940")
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/* Maintainer: Ben Dooks <ben-linux@fluff.org> */
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.phys_io = S3C2410_PA_UART,
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.io_pg_offst = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
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.boot_params = S3C2410_SDRAM_PA + 0x100,
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.map_io = h1940_map_io,
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.reserve = h1940_reserve,
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.init_irq = h1940_init_irq,
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.init_machine = h1940_init,
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.timer = &s3c24xx_timer,
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MACHINE_END
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