d2a2fad7db974f0c0df3b23dc2c6cb178742188a
[pandora-kernel.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/gpio-cfg.h>
54 #include <plat/clock.h>
55 #include <plat/devs.h>
56 #include <plat/cpu.h>
57 #include <plat/pll.h>
58 #include <plat/pm.h>
59 #include <plat/mci.h>
60
61 static struct map_desc h1940_iodesc[] __initdata = {
62         [0] = {
63                 .virtual        = (unsigned long)H1940_LATCH,
64                 .pfn            = __phys_to_pfn(H1940_PA_LATCH),
65                 .length         = SZ_16K,
66                 .type           = MT_DEVICE
67         },
68 };
69
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
73
74 static struct s3c2410_uartcfg h1940_uartcfgs[] __initdata = {
75         [0] = {
76                 .hwport      = 0,
77                 .flags       = 0,
78                 .ucon        = 0x3c5,
79                 .ulcon       = 0x03,
80                 .ufcon       = 0x51,
81         },
82         [1] = {
83                 .hwport      = 1,
84                 .flags       = 0,
85                 .ucon        = 0x245,
86                 .ulcon       = 0x03,
87                 .ufcon       = 0x00,
88         },
89         /* IR port */
90         [2] = {
91                 .hwport      = 2,
92                 .flags       = 0,
93                 .uart_flags  = UPF_CONS_FLOW,
94                 .ucon        = 0x3c5,
95                 .ulcon       = 0x43,
96                 .ufcon       = 0x51,
97         }
98 };
99
100 /* Board control latch control */
101
102 static unsigned int latch_state = H1940_LATCH_DEFAULT;
103
104 void h1940_latch_control(unsigned int clear, unsigned int set)
105 {
106         unsigned long flags;
107
108         local_irq_save(flags);
109
110         latch_state &= ~clear;
111         latch_state |= set;
112
113         __raw_writel(latch_state, H1940_LATCH);
114
115         local_irq_restore(flags);
116 }
117
118 EXPORT_SYMBOL_GPL(h1940_latch_control);
119
120 static void h1940_udc_pullup(enum s3c2410_udc_cmd_e cmd)
121 {
122         printk(KERN_DEBUG "udc: pullup(%d)\n",cmd);
123
124         switch (cmd)
125         {
126                 case S3C2410_UDC_P_ENABLE :
127                         h1940_latch_control(0, H1940_LATCH_USB_DP);
128                         break;
129                 case S3C2410_UDC_P_DISABLE :
130                         h1940_latch_control(H1940_LATCH_USB_DP, 0);
131                         break;
132                 case S3C2410_UDC_P_RESET :
133                         break;
134                 default:
135                         break;
136         }
137 }
138
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,
143 };
144
145 static struct s3c2410_ts_mach_info h1940_ts_cfg __initdata = {
146                 .delay = 10000,
147                 .presc = 49,
148                 .oversampling_shift = 2,
149 };
150
151 /**
152  * Set lcd on or off
153  **/
154 static struct s3c2410fb_display h1940_lcd __initdata = {
155         .lcdcon5=       S3C2410_LCDCON5_FRM565 | \
156                         S3C2410_LCDCON5_INVVLINE | \
157                         S3C2410_LCDCON5_HWSWP,
158
159         .type =         S3C2410_LCDCON1_TFT,
160         .width =        240,
161         .height =       320,
162         .pixclock =     260000,
163         .xres =         240,
164         .yres =         320,
165         .bpp =          16,
166         .left_margin =  8,
167         .right_margin = 20,
168         .hsync_len =    4,
169         .upper_margin = 8,
170         .lower_margin = 7,
171         .vsync_len =    1,
172 };
173
174 static struct s3c2410fb_mach_info h1940_fb_info __initdata = {
175         .displays = &h1940_lcd,
176         .num_displays = 1,
177         .default_display = 0,
178
179         .lpcsel=        0x02,
180         .gpccon=        0xaa940659,
181         .gpccon_mask=   0xffffffff,
182         .gpcup=         0x0000ffff,
183         .gpcup_mask=    0xffffffff,
184         .gpdcon=        0xaa84aaa0,
185         .gpdcon_mask=   0xffffffff,
186         .gpdup=         0x0000faff,
187         .gpdup_mask=    0xffffffff,
188 };
189
190 static struct platform_device h1940_device_leds = {
191         .name             = "h1940-leds",
192         .id               = -1,
193 };
194
195 static struct platform_device h1940_device_bluetooth = {
196         .name             = "h1940-bt",
197         .id               = -1,
198 };
199
200 static struct s3c24xx_mci_pdata h1940_mmc_cfg __initdata = {
201         .gpio_detect   = S3C2410_GPF(5),
202         .gpio_wprotect = S3C2410_GPH(8),
203         .set_power     = NULL,
204         .ocr_avail     = MMC_VDD_32_33,
205 };
206
207 static int h1940_backlight_init(struct device *dev)
208 {
209         gpio_request(S3C2410_GPB(0), "Backlight");
210
211         gpio_direction_output(S3C2410_GPB(0), 0);
212         s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
213         s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
214
215         return 0;
216 }
217
218 static void h1940_backlight_exit(struct device *dev)
219 {
220         gpio_direction_output(S3C2410_GPB(0), 1);
221 }
222
223 static struct platform_pwm_backlight_data backlight_data = {
224         .pwm_id         = 0,
225         .max_brightness = 100,
226         .dft_brightness = 50,
227         /* tcnt = 0x31 */
228         .pwm_period_ns  = 36296,
229         .init           = h1940_backlight_init,
230         .exit           = h1940_backlight_exit,
231 };
232
233 static struct platform_device h1940_backlight = {
234         .name = "pwm-backlight",
235         .dev  = {
236                 .parent = &s3c_device_timer[0].dev,
237                 .platform_data = &backlight_data,
238         },
239         .id   = -1,
240 };
241
242 static void h1940_lcd_power_set(struct plat_lcd_data *pd,
243                                         unsigned int power)
244 {
245         int value;
246
247         if (!power) {
248                 /* set to 3ec */
249                 gpio_direction_output(S3C2410_GPC(0), 0);
250                 /* wait for 3ac */
251                 do {
252                         value = gpio_get_value(S3C2410_GPC(6));
253                 } while (value);
254                 /* set to 38c */
255                 gpio_direction_output(S3C2410_GPC(5), 0);
256         } else {
257                 /* Set to 3ac */
258                 gpio_direction_output(S3C2410_GPC(5), 1);
259                 /* Set to 3ad */
260                 gpio_direction_output(S3C2410_GPC(0), 1);
261         }
262 }
263
264 static struct plat_lcd_data h1940_lcd_power_data = {
265         .set_power      = h1940_lcd_power_set,
266 };
267
268 static struct platform_device h1940_lcd_powerdev = {
269         .name                   = "platform-lcd",
270         .dev.parent             = &s3c_device_lcd.dev,
271         .dev.platform_data      = &h1940_lcd_power_data,
272 };
273
274 static struct platform_device *h1940_devices[] __initdata = {
275         &s3c_device_ohci,
276         &s3c_device_lcd,
277         &s3c_device_wdt,
278         &s3c_device_i2c0,
279         &s3c_device_iis,
280         &s3c_device_usbgadget,
281         &h1940_device_leds,
282         &h1940_device_bluetooth,
283         &s3c_device_sdi,
284         &s3c_device_rtc,
285         &s3c_device_timer[0],
286         &h1940_backlight,
287         &h1940_lcd_powerdev,
288         &s3c_device_adc,
289         &s3c_device_ts,
290 };
291
292 static void __init h1940_map_io(void)
293 {
294         s3c24xx_init_io(h1940_iodesc, ARRAY_SIZE(h1940_iodesc));
295         s3c24xx_init_clocks(0);
296         s3c24xx_init_uarts(h1940_uartcfgs, ARRAY_SIZE(h1940_uartcfgs));
297
298         /* setup PM */
299
300 #ifdef CONFIG_PM_H1940
301         memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 1024);
302 #endif
303         s3c_pm_init();
304 }
305
306 static void __init h1940_init_irq(void)
307 {
308         s3c24xx_init_irq();
309 }
310
311 static void __init h1940_init(void)
312 {
313         u32 tmp;
314
315         s3c24xx_fb_set_platdata(&h1940_fb_info);
316         s3c24xx_mci_set_platdata(&h1940_mmc_cfg);
317         s3c24xx_udc_set_platdata(&h1940_udc_cfg);
318         s3c24xx_ts_set_platdata(&h1940_ts_cfg);
319         s3c_i2c0_set_platdata(NULL);
320
321         /* Turn off suspend on both USB ports, and switch the
322          * selectable USB port to USB device mode. */
323
324         s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
325                               S3C2410_MISCCR_USBSUSPND0 |
326                               S3C2410_MISCCR_USBSUSPND1, 0x0);
327
328         tmp =   (0x78 << S3C24XX_PLLCON_MDIVSHIFT)
329               | (0x02 << S3C24XX_PLLCON_PDIVSHIFT)
330               | (0x03 << S3C24XX_PLLCON_SDIVSHIFT);
331         writel(tmp, S3C2410_UPLLCON);
332
333         gpio_request(S3C2410_GPC(0), "LCD power");
334         gpio_request(S3C2410_GPC(5), "LCD power");
335         gpio_request(S3C2410_GPC(6), "LCD power");
336
337         gpio_direction_input(S3C2410_GPC(6));
338
339         platform_add_devices(h1940_devices, ARRAY_SIZE(h1940_devices));
340 }
341
342 MACHINE_START(H1940, "IPAQ-H1940")
343         /* Maintainer: Ben Dooks <ben-linux@fluff.org> */
344         .phys_io        = S3C2410_PA_UART,
345         .io_pg_offst    = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
346         .boot_params    = S3C2410_SDRAM_PA + 0x100,
347         .map_io         = h1940_map_io,
348         .init_irq       = h1940_init_irq,
349         .init_machine   = h1940_init,
350         .timer          = &s3c24xx_timer,
351 MACHINE_END