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>
52 #include <plat/clock.h>
53 #include <plat/devs.h>
59 static struct map_desc h1940_iodesc[] __initdata = {
61 .virtual = (unsigned long)H1940_LATCH,
62 .pfn = __phys_to_pfn(H1940_PA_LATCH),
68 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
69 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
70 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
72 static struct s3c2410_uartcfg h1940_uartcfgs[] __initdata = {
91 .uart_flags = UPF_CONS_FLOW,
98 /* Board control latch control */
100 static unsigned int latch_state = H1940_LATCH_DEFAULT;
102 void h1940_latch_control(unsigned int clear, unsigned int set)
106 local_irq_save(flags);
108 latch_state &= ~clear;
111 __raw_writel(latch_state, H1940_LATCH);
113 local_irq_restore(flags);
116 EXPORT_SYMBOL_GPL(h1940_latch_control);
118 static void h1940_udc_pullup(enum s3c2410_udc_cmd_e cmd)
120 printk(KERN_DEBUG "udc: pullup(%d)\n",cmd);
124 case S3C2410_UDC_P_ENABLE :
125 h1940_latch_control(0, H1940_LATCH_USB_DP);
127 case S3C2410_UDC_P_DISABLE :
128 h1940_latch_control(H1940_LATCH_USB_DP, 0);
130 case S3C2410_UDC_P_RESET :
137 static struct s3c2410_udc_mach_info h1940_udc_cfg __initdata = {
138 .udc_command = h1940_udc_pullup,
139 .vbus_pin = S3C2410_GPG(5),
140 .vbus_pin_inverted = 1,
147 static struct s3c2410fb_display h1940_lcd __initdata = {
148 .lcdcon5= S3C2410_LCDCON5_FRM565 | \
149 S3C2410_LCDCON5_INVVLINE | \
150 S3C2410_LCDCON5_HWSWP,
152 .type = S3C2410_LCDCON1_TFT,
167 static struct s3c2410fb_mach_info h1940_fb_info __initdata = {
168 .displays = &h1940_lcd,
170 .default_display = 0,
174 .gpccon_mask= 0xffffffff,
176 .gpcup_mask= 0xffffffff,
178 .gpdcon_mask= 0xffffffff,
180 .gpdup_mask= 0xffffffff,
183 static struct platform_device h1940_device_leds = {
184 .name = "h1940-leds",
188 static struct platform_device h1940_device_bluetooth = {
193 static struct s3c24xx_mci_pdata h1940_mmc_cfg = {
194 .gpio_detect = S3C2410_GPF(5),
195 .gpio_wprotect = S3C2410_GPH(8),
197 .ocr_avail = MMC_VDD_32_33,
200 static int h1940_backlight_init(struct device *dev)
202 gpio_request(S3C2410_GPB(0), "Backlight");
204 s3c2410_gpio_setpin(S3C2410_GPB(0), 0);
205 s3c2410_gpio_pullup(S3C2410_GPB(0), 0);
206 s3c2410_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
211 static void h1940_backlight_exit(struct device *dev)
213 s3c2410_gpio_cfgpin(S3C2410_GPB(0), 1/*S3C2410_GPB0_OUTP*/);
216 static struct platform_pwm_backlight_data backlight_data = {
218 .max_brightness = 100,
219 .dft_brightness = 50,
221 .pwm_period_ns = 36296,
222 .init = h1940_backlight_init,
223 .exit = h1940_backlight_exit,
226 static struct platform_device h1940_backlight = {
227 .name = "pwm-backlight",
229 .parent = &s3c_device_timer[0].dev,
230 .platform_data = &backlight_data,
235 static void h1940_lcd_power_set(struct plat_lcd_data *pd,
242 s3c2410_gpio_setpin(S3C2410_GPC(0), 0);
245 value = s3c2410_gpio_getpin(S3C2410_GPC(6));
248 s3c2410_gpio_setpin(S3C2410_GPC(5), 0);
251 s3c2410_gpio_setpin(S3C2410_GPC(5), 1);
253 s3c2410_gpio_setpin(S3C2410_GPC(0), 1);
257 static struct plat_lcd_data h1940_lcd_power_data = {
258 .set_power = h1940_lcd_power_set,
261 static struct platform_device h1940_lcd_powerdev = {
262 .name = "platform-lcd",
263 .dev.parent = &s3c_device_lcd.dev,
264 .dev.platform_data = &h1940_lcd_power_data,
267 static struct platform_device *h1940_devices[] __initdata = {
273 &s3c_device_usbgadget,
275 &h1940_device_bluetooth,
278 &s3c_device_timer[0],
283 static void __init h1940_map_io(void)
285 s3c24xx_init_io(h1940_iodesc, ARRAY_SIZE(h1940_iodesc));
286 s3c24xx_init_clocks(0);
287 s3c24xx_init_uarts(h1940_uartcfgs, ARRAY_SIZE(h1940_uartcfgs));
291 #ifdef CONFIG_PM_H1940
292 memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 1024);
297 static void __init h1940_init_irq(void)
302 static void __init h1940_init(void)
306 s3c24xx_fb_set_platdata(&h1940_fb_info);
307 s3c24xx_udc_set_platdata(&h1940_udc_cfg);
308 s3c_i2c0_set_platdata(NULL);
310 s3c_device_sdi.dev.platform_data = &h1940_mmc_cfg;
312 /* Turn off suspend on both USB ports, and switch the
313 * selectable USB port to USB device mode. */
315 s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
316 S3C2410_MISCCR_USBSUSPND0 |
317 S3C2410_MISCCR_USBSUSPND1, 0x0);
319 tmp = (0x78 << S3C24XX_PLLCON_MDIVSHIFT)
320 | (0x02 << S3C24XX_PLLCON_PDIVSHIFT)
321 | (0x03 << S3C24XX_PLLCON_SDIVSHIFT);
322 writel(tmp, S3C2410_UPLLCON);
324 gpio_request(S3C2410_GPC(0), "LCD power");
325 gpio_request(S3C2410_GPC(5), "LCD power");
326 gpio_request(S3C2410_GPC(6), "LCD power");
329 platform_add_devices(h1940_devices, ARRAY_SIZE(h1940_devices));
332 MACHINE_START(H1940, "IPAQ-H1940")
333 /* Maintainer: Ben Dooks <ben@fluff.org> */
334 .phys_io = S3C2410_PA_UART,
335 .io_pg_offst = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
336 .boot_params = S3C2410_SDRAM_PA + 0x100,
337 .map_io = h1940_map_io,
338 .init_irq = h1940_init_irq,
339 .init_machine = h1940_init,
340 .timer = &s3c24xx_timer,