ARM: Merge for-2635/samsung-hwmon
[linux-2.6.git] / arch / arm / mach-s3c2410 / mach-h1940.c
1 /* linux/arch/arm/mach-s3c2410/mach-h1940.c
2  *
3  * Copyright (c) 2003-2005 Simtec Electronics
4  *   Ben Dooks <ben@simtec.co.uk>
5  *
6  * http://www.handhelds.org/projects/h1940.html
7  *
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.
11  *
12 */
13
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>
23 #include <linux/io.h>
24 #include <linux/gpio.h>
25 #include <linux/pwm_backlight.h>
26 #include <video/platform_lcd.h>
27
28 #include <linux/mmc/host.h>
29
30 #include <asm/mach/arch.h>
31 #include <asm/mach/map.h>
32 #include <asm/mach/irq.h>
33
34 #include <mach/hardware.h>
35 #include <asm/irq.h>
36 #include <asm/mach-types.h>
37
38 #include <plat/regs-serial.h>
39 #include <mach/regs-lcd.h>
40 #include <mach/regs-clock.h>
41
42 #include <mach/regs-gpio.h>
43 #include <mach/gpio-fns.h>
44 #include <mach/gpio-nrs.h>
45
46 #include <mach/h1940.h>
47 #include <mach/h1940-latch.h>
48 #include <mach/fb.h>
49 #include <mach/ts.h>
50 #include <plat/udc.h>
51 #include <plat/iic.h>
52
53 #include <plat/clock.h>
54 #include <plat/devs.h>
55 #include <plat/cpu.h>
56 #include <plat/pll.h>
57 #include <plat/pm.h>
58 #include <plat/mci.h>
59
60 static struct map_desc h1940_iodesc[] __initdata = {
61         [0] = {
62                 .virtual        = (unsigned long)H1940_LATCH,
63                 .pfn            = __phys_to_pfn(H1940_PA_LATCH),
64                 .length         = SZ_16K,
65                 .type           = MT_DEVICE
66         },
67 };
68
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
72
73 static struct s3c2410_uartcfg h1940_uartcfgs[] __initdata = {
74         [0] = {
75                 .hwport      = 0,
76                 .flags       = 0,
77                 .ucon        = 0x3c5,
78                 .ulcon       = 0x03,
79                 .ufcon       = 0x51,
80         },
81         [1] = {
82                 .hwport      = 1,
83                 .flags       = 0,
84                 .ucon        = 0x245,
85                 .ulcon       = 0x03,
86                 .ufcon       = 0x00,
87         },
88         /* IR port */
89         [2] = {
90                 .hwport      = 2,
91                 .flags       = 0,
92                 .uart_flags  = UPF_CONS_FLOW,
93                 .ucon        = 0x3c5,
94                 .ulcon       = 0x43,
95                 .ufcon       = 0x51,
96         }
97 };
98
99 /* Board control latch control */
100
101 static unsigned int latch_state = H1940_LATCH_DEFAULT;
102
103 void h1940_latch_control(unsigned int clear, unsigned int set)
104 {
105         unsigned long flags;
106
107         local_irq_save(flags);
108
109         latch_state &= ~clear;
110         latch_state |= set;
111
112         __raw_writel(latch_state, H1940_LATCH);
113
114         local_irq_restore(flags);
115 }
116
117 EXPORT_SYMBOL_GPL(h1940_latch_control);
118
119 static void h1940_udc_pullup(enum s3c2410_udc_cmd_e cmd)
120 {
121         printk(KERN_DEBUG "udc: pullup(%d)\n",cmd);
122
123         switch (cmd)
124         {
125                 case S3C2410_UDC_P_ENABLE :
126                         h1940_latch_control(0, H1940_LATCH_USB_DP);
127                         break;
128                 case S3C2410_UDC_P_DISABLE :
129                         h1940_latch_control(H1940_LATCH_USB_DP, 0);
130                         break;
131                 case S3C2410_UDC_P_RESET :
132                         break;
133                 default:
134                         break;
135         }
136 }
137
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,
142 };
143
144 static struct s3c2410_ts_mach_info h1940_ts_cfg __initdata = {
145                 .delay = 10000,
146                 .presc = 49,
147                 .oversampling_shift = 2,
148 };
149
150 /**
151  * Set lcd on or off
152  **/
153 static struct s3c2410fb_display h1940_lcd __initdata = {
154         .lcdcon5=       S3C2410_LCDCON5_FRM565 | \
155                         S3C2410_LCDCON5_INVVLINE | \
156                         S3C2410_LCDCON5_HWSWP,
157
158         .type =         S3C2410_LCDCON1_TFT,
159         .width =        240,
160         .height =       320,
161         .pixclock =     260000,
162         .xres =         240,
163         .yres =         320,
164         .bpp =          16,
165         .left_margin =  8,
166         .right_margin = 20,
167         .hsync_len =    4,
168         .upper_margin = 8,
169         .lower_margin = 7,
170         .vsync_len =    1,
171 };
172
173 static struct s3c2410fb_mach_info h1940_fb_info __initdata = {
174         .displays = &h1940_lcd,
175         .num_displays = 1,
176         .default_display = 0,
177
178         .lpcsel=        0x02,
179         .gpccon=        0xaa940659,
180         .gpccon_mask=   0xffffffff,
181         .gpcup=         0x0000ffff,
182         .gpcup_mask=    0xffffffff,
183         .gpdcon=        0xaa84aaa0,
184         .gpdcon_mask=   0xffffffff,
185         .gpdup=         0x0000faff,
186         .gpdup_mask=    0xffffffff,
187 };
188
189 static struct platform_device h1940_device_leds = {
190         .name             = "h1940-leds",
191         .id               = -1,
192 };
193
194 static struct platform_device h1940_device_bluetooth = {
195         .name             = "h1940-bt",
196         .id               = -1,
197 };
198
199 static struct s3c24xx_mci_pdata h1940_mmc_cfg __initdata = {
200         .gpio_detect   = S3C2410_GPF(5),
201         .gpio_wprotect = S3C2410_GPH(8),
202         .set_power     = NULL,
203         .ocr_avail     = MMC_VDD_32_33,
204 };
205
206 static int h1940_backlight_init(struct device *dev)
207 {
208         gpio_request(S3C2410_GPB(0), "Backlight");
209
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);
213
214         return 0;
215 }
216
217 static void h1940_backlight_exit(struct device *dev)
218 {
219         s3c2410_gpio_cfgpin(S3C2410_GPB(0), 1/*S3C2410_GPB0_OUTP*/);
220 }
221
222 static struct platform_pwm_backlight_data backlight_data = {
223         .pwm_id         = 0,
224         .max_brightness = 100,
225         .dft_brightness = 50,
226         /* tcnt = 0x31 */
227         .pwm_period_ns  = 36296,
228         .init           = h1940_backlight_init,
229         .exit           = h1940_backlight_exit,
230 };
231
232 static struct platform_device h1940_backlight = {
233         .name = "pwm-backlight",
234         .dev  = {
235                 .parent = &s3c_device_timer[0].dev,
236                 .platform_data = &backlight_data,
237         },
238         .id   = -1,
239 };
240
241 static void h1940_lcd_power_set(struct plat_lcd_data *pd,
242                                         unsigned int power)
243 {
244         int value;
245
246         if (!power) {
247                 /* set to 3ec */
248                 s3c2410_gpio_setpin(S3C2410_GPC(0), 0);
249                 /* wait for 3ac */
250                 do {
251                         value = s3c2410_gpio_getpin(S3C2410_GPC(6));
252                 } while (value);
253                 /* set to 38c */
254                 s3c2410_gpio_setpin(S3C2410_GPC(5), 0);
255         } else {
256                 /* Set to 3ac */
257                 s3c2410_gpio_setpin(S3C2410_GPC(5), 1);
258                 /* Set to 3ad */
259                 s3c2410_gpio_setpin(S3C2410_GPC(0), 1);
260         }
261 }
262
263 static struct plat_lcd_data h1940_lcd_power_data = {
264         .set_power      = h1940_lcd_power_set,
265 };
266
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,
271 };
272
273 static struct platform_device *h1940_devices[] __initdata = {
274         &s3c_device_ohci,
275         &s3c_device_lcd,
276         &s3c_device_wdt,
277         &s3c_device_i2c0,
278         &s3c_device_iis,
279         &s3c_device_usbgadget,
280         &h1940_device_leds,
281         &h1940_device_bluetooth,
282         &s3c_device_sdi,
283         &s3c_device_rtc,
284         &s3c_device_timer[0],
285         &h1940_backlight,
286         &h1940_lcd_powerdev,
287         &s3c_device_adc,
288         &s3c_device_ts,
289 };
290
291 static void __init h1940_map_io(void)
292 {
293         s3c24xx_init_io(h1940_iodesc, ARRAY_SIZE(h1940_iodesc));
294         s3c24xx_init_clocks(0);
295         s3c24xx_init_uarts(h1940_uartcfgs, ARRAY_SIZE(h1940_uartcfgs));
296
297         /* setup PM */
298
299 #ifdef CONFIG_PM_H1940
300         memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 1024);
301 #endif
302         s3c_pm_init();
303 }
304
305 static void __init h1940_init_irq(void)
306 {
307         s3c24xx_init_irq();
308 }
309
310 static void __init h1940_init(void)
311 {
312         u32 tmp;
313
314         s3c24xx_fb_set_platdata(&h1940_fb_info);
315         s3c24xx_mci_set_platdata(&h1940_mmc_cfg);
316         s3c24xx_udc_set_platdata(&h1940_udc_cfg);
317         s3c24xx_ts_set_platdata(&h1940_ts_cfg);
318         s3c_i2c0_set_platdata(NULL);
319
320         /* Turn off suspend on both USB ports, and switch the
321          * selectable USB port to USB device mode. */
322
323         s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
324                               S3C2410_MISCCR_USBSUSPND0 |
325                               S3C2410_MISCCR_USBSUSPND1, 0x0);
326
327         tmp =   (0x78 << S3C24XX_PLLCON_MDIVSHIFT)
328               | (0x02 << S3C24XX_PLLCON_PDIVSHIFT)
329               | (0x03 << S3C24XX_PLLCON_SDIVSHIFT);
330         writel(tmp, S3C2410_UPLLCON);
331
332         gpio_request(S3C2410_GPC(0), "LCD power");
333         gpio_request(S3C2410_GPC(5), "LCD power");
334         gpio_request(S3C2410_GPC(6), "LCD power");
335
336
337         platform_add_devices(h1940_devices, ARRAY_SIZE(h1940_devices));
338 }
339
340 MACHINE_START(H1940, "IPAQ-H1940")
341         /* Maintainer: Ben Dooks <ben-linux@fluff.org> */
342         .phys_io        = S3C2410_PA_UART,
343         .io_pg_offst    = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
344         .boot_params    = S3C2410_SDRAM_PA + 0x100,
345         .map_io         = h1940_map_io,
346         .init_irq       = h1940_init_irq,
347         .init_machine   = h1940_init,
348         .timer          = &s3c24xx_timer,
349 MACHINE_END