1 /* linux/arch/arm/mach-s3c2410/mach-h1940.c
3 * Copyright (c) 2003-2005 Simtec Electronics
4 * Ben Dooks <ben@simtec.co.uk>
6 * http://www.handhelds.org/projects/h1940.html
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
14 #include <linux/kernel.h>
15 #include <linux/types.h>
16 #include <linux/interrupt.h>
17 #include <linux/list.h>
18 #include <linux/timer.h>
19 #include <linux/init.h>
20 #include <linux/sysdev.h>
21 #include <linux/serial_core.h>
22 #include <linux/platform_device.h>
24 #include <linux/gpio.h>
25 #include <linux/pwm_backlight.h>
26 #include <video/platform_lcd.h>
28 #include <linux/mmc/host.h>
30 #include <asm/mach/arch.h>
31 #include <asm/mach/map.h>
32 #include <asm/mach/irq.h>
34 #include <mach/hardware.h>
36 #include <asm/mach-types.h>
38 #include <plat/regs-serial.h>
39 #include <mach/regs-lcd.h>
40 #include <mach/regs-clock.h>
42 #include <mach/regs-gpio.h>
43 #include <mach/gpio-fns.h>
44 #include <mach/gpio-nrs.h>
46 #include <mach/h1940.h>
47 #include <mach/h1940-latch.h>
53 #include <plat/clock.h>
54 #include <plat/devs.h>
60 static struct map_desc h1940_iodesc[] __initdata = {
62 .virtual = (unsigned long)H1940_LATCH,
63 .pfn = __phys_to_pfn(H1940_PA_LATCH),
69 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
70 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
71 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
73 static struct s3c2410_uartcfg h1940_uartcfgs[] __initdata = {
92 .uart_flags = UPF_CONS_FLOW,
99 /* Board control latch control */
101 static unsigned int latch_state = H1940_LATCH_DEFAULT;
103 void h1940_latch_control(unsigned int clear, unsigned int set)
107 local_irq_save(flags);
109 latch_state &= ~clear;
112 __raw_writel(latch_state, H1940_LATCH);
114 local_irq_restore(flags);
117 EXPORT_SYMBOL_GPL(h1940_latch_control);
119 static void h1940_udc_pullup(enum s3c2410_udc_cmd_e cmd)
121 printk(KERN_DEBUG "udc: pullup(%d)\n",cmd);
125 case S3C2410_UDC_P_ENABLE :
126 h1940_latch_control(0, H1940_LATCH_USB_DP);
128 case S3C2410_UDC_P_DISABLE :
129 h1940_latch_control(H1940_LATCH_USB_DP, 0);
131 case S3C2410_UDC_P_RESET :
138 static struct s3c2410_udc_mach_info h1940_udc_cfg __initdata = {
139 .udc_command = h1940_udc_pullup,
140 .vbus_pin = S3C2410_GPG(5),
141 .vbus_pin_inverted = 1,
144 static struct s3c2410_ts_mach_info h1940_ts_cfg __initdata = {
147 .oversampling_shift = 2,
153 static struct s3c2410fb_display h1940_lcd __initdata = {
154 .lcdcon5= S3C2410_LCDCON5_FRM565 | \
155 S3C2410_LCDCON5_INVVLINE | \
156 S3C2410_LCDCON5_HWSWP,
158 .type = S3C2410_LCDCON1_TFT,
173 static struct s3c2410fb_mach_info h1940_fb_info __initdata = {
174 .displays = &h1940_lcd,
176 .default_display = 0,
180 .gpccon_mask= 0xffffffff,
182 .gpcup_mask= 0xffffffff,
184 .gpdcon_mask= 0xffffffff,
186 .gpdup_mask= 0xffffffff,
189 static struct platform_device h1940_device_leds = {
190 .name = "h1940-leds",
194 static struct platform_device h1940_device_bluetooth = {
199 static struct s3c24xx_mci_pdata h1940_mmc_cfg __initdata = {
200 .gpio_detect = S3C2410_GPF(5),
201 .gpio_wprotect = S3C2410_GPH(8),
203 .ocr_avail = MMC_VDD_32_33,
206 static int h1940_backlight_init(struct device *dev)
208 gpio_request(S3C2410_GPB(0), "Backlight");
210 s3c2410_gpio_setpin(S3C2410_GPB(0), 0);
211 s3c2410_gpio_pullup(S3C2410_GPB(0), 0);
212 s3c2410_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
217 static void h1940_backlight_exit(struct device *dev)
219 s3c2410_gpio_cfgpin(S3C2410_GPB(0), 1/*S3C2410_GPB0_OUTP*/);
222 static struct platform_pwm_backlight_data backlight_data = {
224 .max_brightness = 100,
225 .dft_brightness = 50,
227 .pwm_period_ns = 36296,
228 .init = h1940_backlight_init,
229 .exit = h1940_backlight_exit,
232 static struct platform_device h1940_backlight = {
233 .name = "pwm-backlight",
235 .parent = &s3c_device_timer[0].dev,
236 .platform_data = &backlight_data,
241 static void h1940_lcd_power_set(struct plat_lcd_data *pd,
248 s3c2410_gpio_setpin(S3C2410_GPC(0), 0);
251 value = s3c2410_gpio_getpin(S3C2410_GPC(6));
254 s3c2410_gpio_setpin(S3C2410_GPC(5), 0);
257 s3c2410_gpio_setpin(S3C2410_GPC(5), 1);
259 s3c2410_gpio_setpin(S3C2410_GPC(0), 1);
263 static struct plat_lcd_data h1940_lcd_power_data = {
264 .set_power = h1940_lcd_power_set,
267 static struct platform_device h1940_lcd_powerdev = {
268 .name = "platform-lcd",
269 .dev.parent = &s3c_device_lcd.dev,
270 .dev.platform_data = &h1940_lcd_power_data,
273 static struct platform_device *h1940_devices[] __initdata = {
280 &s3c_device_usbgadget,
282 &h1940_device_bluetooth,
285 &s3c_device_timer[0],
290 static void __init h1940_map_io(void)
292 s3c24xx_init_io(h1940_iodesc, ARRAY_SIZE(h1940_iodesc));
293 s3c24xx_init_clocks(0);
294 s3c24xx_init_uarts(h1940_uartcfgs, ARRAY_SIZE(h1940_uartcfgs));
298 #ifdef CONFIG_PM_H1940
299 memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 1024);
304 static void __init h1940_init_irq(void)
309 static void __init h1940_init(void)
313 s3c24xx_fb_set_platdata(&h1940_fb_info);
314 s3c24xx_mci_set_platdata(&h1940_mmc_cfg);
315 s3c24xx_udc_set_platdata(&h1940_udc_cfg);
316 s3c24xx_ts_set_platdata(&h1940_ts_cfg);
317 s3c_i2c0_set_platdata(NULL);
319 /* Turn off suspend on both USB ports, and switch the
320 * selectable USB port to USB device mode. */
322 s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
323 S3C2410_MISCCR_USBSUSPND0 |
324 S3C2410_MISCCR_USBSUSPND1, 0x0);
326 tmp = (0x78 << S3C24XX_PLLCON_MDIVSHIFT)
327 | (0x02 << S3C24XX_PLLCON_PDIVSHIFT)
328 | (0x03 << S3C24XX_PLLCON_SDIVSHIFT);
329 writel(tmp, S3C2410_UPLLCON);
331 gpio_request(S3C2410_GPC(0), "LCD power");
332 gpio_request(S3C2410_GPC(5), "LCD power");
333 gpio_request(S3C2410_GPC(6), "LCD power");
336 platform_add_devices(h1940_devices, ARRAY_SIZE(h1940_devices));
339 MACHINE_START(H1940, "IPAQ-H1940")
340 /* Maintainer: Ben Dooks <ben@fluff.org> */
341 .phys_io = S3C2410_PA_UART,
342 .io_pg_offst = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
343 .boot_params = S3C2410_SDRAM_PA + 0x100,
344 .map_io = h1940_map_io,
345 .init_irq = h1940_init_irq,
346 .init_machine = h1940_init,
347 .timer = &s3c24xx_timer,