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/gpio-cfg.h>
53 #include <plat/clock.h>
54 #include <plat/devs.h>
61 static struct map_desc h1940_iodesc
[] __initdata
= {
63 .virtual = (unsigned long)H1940_LATCH
,
64 .pfn
= __phys_to_pfn(H1940_PA_LATCH
),
70 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
71 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
72 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
74 static struct s3c2410_uartcfg h1940_uartcfgs
[] __initdata
= {
93 .uart_flags
= UPF_CONS_FLOW
,
100 /* Board control latch control */
102 static unsigned int latch_state
= H1940_LATCH_DEFAULT
;
104 void h1940_latch_control(unsigned int clear
, unsigned int set
)
108 local_irq_save(flags
);
110 latch_state
&= ~clear
;
113 __raw_writel(latch_state
, H1940_LATCH
);
115 local_irq_restore(flags
);
118 EXPORT_SYMBOL_GPL(h1940_latch_control
);
120 static void h1940_udc_pullup(enum s3c2410_udc_cmd_e cmd
)
122 printk(KERN_DEBUG
"udc: pullup(%d)\n",cmd
);
126 case S3C2410_UDC_P_ENABLE
:
127 h1940_latch_control(0, H1940_LATCH_USB_DP
);
129 case S3C2410_UDC_P_DISABLE
:
130 h1940_latch_control(H1940_LATCH_USB_DP
, 0);
132 case S3C2410_UDC_P_RESET
:
139 static struct s3c2410_udc_mach_info h1940_udc_cfg __initdata
= {
140 .udc_command
= h1940_udc_pullup
,
141 .vbus_pin
= S3C2410_GPG(5),
142 .vbus_pin_inverted
= 1,
145 static struct s3c2410_ts_mach_info h1940_ts_cfg __initdata
= {
148 .oversampling_shift
= 2,
149 .cfg_gpio
= s3c24xx_ts_cfg_gpio
,
155 static struct s3c2410fb_display h1940_lcd __initdata
= {
156 .lcdcon5
= S3C2410_LCDCON5_FRM565
| \
157 S3C2410_LCDCON5_INVVLINE
| \
158 S3C2410_LCDCON5_HWSWP
,
160 .type
= S3C2410_LCDCON1_TFT
,
175 static struct s3c2410fb_mach_info h1940_fb_info __initdata
= {
176 .displays
= &h1940_lcd
,
178 .default_display
= 0,
182 .gpccon_mask
= 0xffffffff,
184 .gpcup_mask
= 0xffffffff,
186 .gpdcon_mask
= 0xffffffff,
188 .gpdup_mask
= 0xffffffff,
191 static struct platform_device h1940_device_leds
= {
192 .name
= "h1940-leds",
196 static struct platform_device h1940_device_bluetooth
= {
201 static struct s3c24xx_mci_pdata h1940_mmc_cfg __initdata
= {
202 .gpio_detect
= S3C2410_GPF(5),
203 .gpio_wprotect
= S3C2410_GPH(8),
205 .ocr_avail
= MMC_VDD_32_33
,
208 static int h1940_backlight_init(struct device
*dev
)
210 gpio_request(S3C2410_GPB(0), "Backlight");
212 gpio_direction_output(S3C2410_GPB(0), 0);
213 s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE
);
214 s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0
);
219 static void h1940_backlight_exit(struct device
*dev
)
221 gpio_direction_output(S3C2410_GPB(0), 1);
224 static struct platform_pwm_backlight_data backlight_data
= {
226 .max_brightness
= 100,
227 .dft_brightness
= 50,
229 .pwm_period_ns
= 36296,
230 .init
= h1940_backlight_init
,
231 .exit
= h1940_backlight_exit
,
234 static struct platform_device h1940_backlight
= {
235 .name
= "pwm-backlight",
237 .parent
= &s3c_device_timer
[0].dev
,
238 .platform_data
= &backlight_data
,
243 static void h1940_lcd_power_set(struct plat_lcd_data
*pd
,
250 gpio_direction_output(S3C2410_GPC(0), 0);
253 value
= gpio_get_value(S3C2410_GPC(6));
256 gpio_direction_output(S3C2410_GPC(5), 0);
259 gpio_direction_output(S3C2410_GPC(5), 1);
261 gpio_direction_output(S3C2410_GPC(0), 1);
265 static struct plat_lcd_data h1940_lcd_power_data
= {
266 .set_power
= h1940_lcd_power_set
,
269 static struct platform_device h1940_lcd_powerdev
= {
270 .name
= "platform-lcd",
271 .dev
.parent
= &s3c_device_lcd
.dev
,
272 .dev
.platform_data
= &h1940_lcd_power_data
,
275 static struct platform_device
*h1940_devices
[] __initdata
= {
281 &s3c_device_usbgadget
,
283 &h1940_device_bluetooth
,
286 &s3c_device_timer
[0],
293 static void __init
h1940_map_io(void)
295 s3c24xx_init_io(h1940_iodesc
, ARRAY_SIZE(h1940_iodesc
));
296 s3c24xx_init_clocks(0);
297 s3c24xx_init_uarts(h1940_uartcfgs
, ARRAY_SIZE(h1940_uartcfgs
));
301 #ifdef CONFIG_PM_H1940
302 memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT
), h1940_pm_return
, 1024);
307 static void __init
h1940_init_irq(void)
312 static void __init
h1940_init(void)
316 s3c24xx_fb_set_platdata(&h1940_fb_info
);
317 s3c24xx_mci_set_platdata(&h1940_mmc_cfg
);
318 s3c24xx_udc_set_platdata(&h1940_udc_cfg
);
319 s3c24xx_ts_set_platdata(&h1940_ts_cfg
);
320 s3c_i2c0_set_platdata(NULL
);
322 /* Turn off suspend on both USB ports, and switch the
323 * selectable USB port to USB device mode. */
325 s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST
|
326 S3C2410_MISCCR_USBSUSPND0
|
327 S3C2410_MISCCR_USBSUSPND1
, 0x0);
329 tmp
= (0x78 << S3C24XX_PLLCON_MDIVSHIFT
)
330 | (0x02 << S3C24XX_PLLCON_PDIVSHIFT
)
331 | (0x03 << S3C24XX_PLLCON_SDIVSHIFT
);
332 writel(tmp
, S3C2410_UPLLCON
);
334 gpio_request(S3C2410_GPC(0), "LCD power");
335 gpio_request(S3C2410_GPC(5), "LCD power");
336 gpio_request(S3C2410_GPC(6), "LCD power");
338 gpio_direction_input(S3C2410_GPC(6));
340 platform_add_devices(h1940_devices
, ARRAY_SIZE(h1940_devices
));
343 MACHINE_START(H1940
, "IPAQ-H1940")
344 /* Maintainer: Ben Dooks <ben-linux@fluff.org> */
345 .phys_io
= S3C2410_PA_UART
,
346 .io_pg_offst
= (((u32
)S3C24XX_VA_UART
) >> 18) & 0xfffc,
347 .boot_params
= S3C2410_SDRAM_PA
+ 0x100,
348 .map_io
= h1940_map_io
,
349 .init_irq
= h1940_init_irq
,
350 .init_machine
= h1940_init
,
351 .timer
= &s3c24xx_timer
,