Merge branch 'ptebits' into devel
[linux-2.6] / arch / arm / mach-pxa / corgi.c
1 /*
2  * Support for Sharp SL-C7xx PDAs
3  * Models: SL-C700 (Corgi), SL-C750 (Shepherd), SL-C760 (Husky)
4  *
5  * Copyright (c) 2004-2005 Richard Purdie
6  *
7  * Based on Sharp's 2.4 kernel patches/lubbock.c
8  *
9  * This program is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License version 2 as
11  * published by the Free Software Foundation.
12  *
13  */
14
15 #include <linux/kernel.h>
16 #include <linux/init.h>
17 #include <linux/platform_device.h>
18 #include <linux/major.h>
19 #include <linux/fs.h>
20 #include <linux/interrupt.h>
21 #include <linux/mmc/host.h>
22 #include <linux/pm.h>
23 #include <linux/backlight.h>
24 #include <linux/io.h>
25 #include <video/w100fb.h>
26
27 #include <asm/setup.h>
28 #include <asm/memory.h>
29 #include <asm/mach-types.h>
30 #include <mach/hardware.h>
31 #include <asm/irq.h>
32 #include <asm/system.h>
33
34 #include <asm/mach/arch.h>
35 #include <asm/mach/map.h>
36 #include <asm/mach/irq.h>
37
38 #include <mach/pxa-regs.h>
39 #include <mach/pxa2xx-regs.h>
40 #include <mach/pxa2xx-gpio.h>
41 #include <mach/i2c.h>
42 #include <mach/irda.h>
43 #include <mach/mmc.h>
44 #include <mach/udc.h>
45 #include <mach/corgi.h>
46 #include <mach/sharpsl.h>
47
48 #include <asm/mach/sharpsl_param.h>
49 #include <asm/hardware/scoop.h>
50
51 #include "generic.h"
52 #include "devices.h"
53 #include "sharpsl.h"
54
55
56 /*
57  * Corgi SCOOP Device
58  */
59 static struct resource corgi_scoop_resources[] = {
60         [0] = {
61                 .start          = 0x10800000,
62                 .end            = 0x10800fff,
63                 .flags          = IORESOURCE_MEM,
64         },
65 };
66
67 static struct scoop_config corgi_scoop_setup = {
68         .io_dir         = CORGI_SCOOP_IO_DIR,
69         .io_out         = CORGI_SCOOP_IO_OUT,
70 };
71
72 struct platform_device corgiscoop_device = {
73         .name           = "sharp-scoop",
74         .id             = -1,
75         .dev            = {
76                 .platform_data  = &corgi_scoop_setup,
77         },
78         .num_resources  = ARRAY_SIZE(corgi_scoop_resources),
79         .resource       = corgi_scoop_resources,
80 };
81
82 static void corgi_pcmcia_init(void)
83 {
84         /* Setup default state of GPIO outputs
85            before we enable them as outputs. */
86         GPSR(GPIO48_nPOE) = GPIO_bit(GPIO48_nPOE) |
87                 GPIO_bit(GPIO49_nPWE) | GPIO_bit(GPIO50_nPIOR) |
88                 GPIO_bit(GPIO51_nPIOW) | GPIO_bit(GPIO52_nPCE_1) |
89                 GPIO_bit(GPIO53_nPCE_2);
90
91         pxa_gpio_mode(GPIO48_nPOE_MD);
92         pxa_gpio_mode(GPIO49_nPWE_MD);
93         pxa_gpio_mode(GPIO50_nPIOR_MD);
94         pxa_gpio_mode(GPIO51_nPIOW_MD);
95         pxa_gpio_mode(GPIO55_nPREG_MD);
96         pxa_gpio_mode(GPIO56_nPWAIT_MD);
97         pxa_gpio_mode(GPIO57_nIOIS16_MD);
98         pxa_gpio_mode(GPIO52_nPCE_1_MD);
99         pxa_gpio_mode(GPIO53_nPCE_2_MD);
100         pxa_gpio_mode(GPIO54_pSKTSEL_MD);
101 }
102
103 static struct scoop_pcmcia_dev corgi_pcmcia_scoop[] = {
104 {
105         .dev        = &corgiscoop_device.dev,
106         .irq        = CORGI_IRQ_GPIO_CF_IRQ,
107         .cd_irq     = CORGI_IRQ_GPIO_CF_CD,
108         .cd_irq_str = "PCMCIA0 CD",
109 },
110 };
111
112 static struct scoop_pcmcia_config corgi_pcmcia_config = {
113         .devs         = &corgi_pcmcia_scoop[0],
114         .num_devs     = 1,
115         .pcmcia_init  = corgi_pcmcia_init,
116 };
117
118 EXPORT_SYMBOL(corgiscoop_device);
119
120
121 /*
122  * Corgi SSP Device
123  *
124  * Set the parent as the scoop device because a lot of SSP devices
125  * also use scoop functions and this makes the power up/down order
126  * work correctly.
127  */
128 struct platform_device corgissp_device = {
129         .name           = "corgi-ssp",
130         .dev            = {
131                 .parent = &corgiscoop_device.dev,
132         },
133         .id             = -1,
134 };
135
136 struct corgissp_machinfo corgi_ssp_machinfo = {
137         .port           = 1,
138         .cs_lcdcon      = CORGI_GPIO_LCDCON_CS,
139         .cs_ads7846     = CORGI_GPIO_ADS7846_CS,
140         .cs_max1111     = CORGI_GPIO_MAX1111_CS,
141         .clk_lcdcon     = 76,
142         .clk_ads7846    = 2,
143         .clk_max1111    = 8,
144 };
145
146
147 /*
148  * LCD/Framebuffer
149  */
150 static void w100_lcdtg_suspend(struct w100fb_par *par)
151 {
152         corgi_lcdtg_suspend();
153 }
154
155 static void w100_lcdtg_init(struct w100fb_par *par)
156 {
157         corgi_lcdtg_hw_init(par->xres);
158 }
159
160
161 static struct w100_tg_info corgi_lcdtg_info = {
162         .change  = w100_lcdtg_init,
163         .suspend = w100_lcdtg_suspend,
164         .resume  = w100_lcdtg_init,
165 };
166
167 static struct w100_mem_info corgi_fb_mem = {
168         .ext_cntl          = 0x00040003,
169         .sdram_mode_reg    = 0x00650021,
170         .ext_timing_cntl   = 0x10002a4a,
171         .io_cntl           = 0x7ff87012,
172         .size              = 0x1fffff,
173 };
174
175 static struct w100_gen_regs corgi_fb_regs = {
176         .lcd_format    = 0x00000003,
177         .lcdd_cntl1    = 0x01CC0000,
178         .lcdd_cntl2    = 0x0003FFFF,
179         .genlcd_cntl1  = 0x00FFFF0D,
180         .genlcd_cntl2  = 0x003F3003,
181         .genlcd_cntl3  = 0x000102aa,
182 };
183
184 static struct w100_gpio_regs corgi_fb_gpio = {
185         .init_data1   = 0x000000bf,
186         .init_data2   = 0x00000000,
187         .gpio_dir1    = 0x00000000,
188         .gpio_oe1     = 0x03c0feff,
189         .gpio_dir2    = 0x00000000,
190         .gpio_oe2     = 0x00000000,
191 };
192
193 static struct w100_mode corgi_fb_modes[] = {
194 {
195         .xres            = 480,
196         .yres            = 640,
197         .left_margin     = 0x56,
198         .right_margin    = 0x55,
199         .upper_margin    = 0x03,
200         .lower_margin    = 0x00,
201         .crtc_ss         = 0x82360056,
202         .crtc_ls         = 0xA0280000,
203         .crtc_gs         = 0x80280028,
204         .crtc_vpos_gs    = 0x02830002,
205         .crtc_rev        = 0x00400008,
206         .crtc_dclk       = 0xA0000000,
207         .crtc_gclk       = 0x8015010F,
208         .crtc_goe        = 0x80100110,
209         .crtc_ps1_active = 0x41060010,
210         .pll_freq        = 75,
211         .fast_pll_freq   = 100,
212         .sysclk_src      = CLK_SRC_PLL,
213         .sysclk_divider  = 0,
214         .pixclk_src      = CLK_SRC_PLL,
215         .pixclk_divider  = 2,
216         .pixclk_divider_rotated = 6,
217 },{
218         .xres            = 240,
219         .yres            = 320,
220         .left_margin     = 0x27,
221         .right_margin    = 0x2e,
222         .upper_margin    = 0x01,
223         .lower_margin    = 0x00,
224         .crtc_ss         = 0x81170027,
225         .crtc_ls         = 0xA0140000,
226         .crtc_gs         = 0xC0140014,
227         .crtc_vpos_gs    = 0x00010141,
228         .crtc_rev        = 0x00400008,
229         .crtc_dclk       = 0xA0000000,
230         .crtc_gclk       = 0x8015010F,
231         .crtc_goe        = 0x80100110,
232         .crtc_ps1_active = 0x41060010,
233         .pll_freq        = 0,
234         .fast_pll_freq   = 0,
235         .sysclk_src      = CLK_SRC_XTAL,
236         .sysclk_divider  = 0,
237         .pixclk_src      = CLK_SRC_XTAL,
238         .pixclk_divider  = 1,
239         .pixclk_divider_rotated = 1,
240 },
241
242 };
243
244 static struct w100fb_mach_info corgi_fb_info = {
245         .tg         = &corgi_lcdtg_info,
246         .init_mode  = INIT_MODE_ROTATED,
247         .mem        = &corgi_fb_mem,
248         .regs       = &corgi_fb_regs,
249         .modelist   = &corgi_fb_modes[0],
250         .num_modes  = 2,
251         .gpio       = &corgi_fb_gpio,
252         .xtal_freq  = 12500000,
253         .xtal_dbl   = 0,
254 };
255
256 static struct resource corgi_fb_resources[] = {
257         [0] = {
258                 .start   = 0x08000000,
259                 .end     = 0x08ffffff,
260                 .flags   = IORESOURCE_MEM,
261         },
262 };
263
264 static struct platform_device corgifb_device = {
265         .name           = "w100fb",
266         .id             = -1,
267         .num_resources  = ARRAY_SIZE(corgi_fb_resources),
268         .resource       = corgi_fb_resources,
269         .dev            = {
270                 .platform_data = &corgi_fb_info,
271                 .parent = &corgissp_device.dev,
272         },
273
274 };
275
276
277 /*
278  * Corgi Backlight Device
279  */
280 static void corgi_bl_kick_battery(void)
281 {
282         void (*kick_batt)(void);
283
284         kick_batt = symbol_get(sharpsl_battery_kick);
285         if (kick_batt) {
286                 kick_batt();
287                 symbol_put(sharpsl_battery_kick);
288         }
289 }
290
291 static void corgi_bl_set_intensity(int intensity)
292 {
293         if (intensity > 0x10)
294                 intensity += 0x10;
295
296         /* Bits 0-4 are accessed via the SSP interface */
297         corgi_ssp_blduty_set(intensity & 0x1f);
298
299         /* Bit 5 is via SCOOP */
300         if (intensity & 0x0020)
301                 set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_BACKLIGHT_CONT);
302         else
303                 reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_BACKLIGHT_CONT);
304 }
305
306 static struct generic_bl_info corgi_bl_machinfo = {
307         .name = "corgi-bl",
308         .max_intensity = 0x2f,
309         .default_intensity = 0x1f,
310         .limit_mask = 0x0b,
311         .set_bl_intensity = corgi_bl_set_intensity,
312         .kick_battery = corgi_bl_kick_battery,
313 };
314
315 static struct platform_device corgibl_device = {
316         .name           = "generic-bl",
317         .dev            = {
318                 .parent = &corgifb_device.dev,
319                 .platform_data  = &corgi_bl_machinfo,
320         },
321         .id             = -1,
322 };
323
324
325 /*
326  * Corgi Keyboard Device
327  */
328 static struct platform_device corgikbd_device = {
329         .name           = "corgi-keyboard",
330         .id             = -1,
331 };
332
333
334 /*
335  * Corgi LEDs
336  */
337 static struct platform_device corgiled_device = {
338         .name           = "corgi-led",
339         .id             = -1,
340 };
341
342
343 /*
344  * Corgi Touch Screen Device
345  */
346 static unsigned long (*get_hsync_invperiod)(struct device *dev);
347
348 static void inline sharpsl_wait_sync(int gpio)
349 {
350         while((GPLR(gpio) & GPIO_bit(gpio)) == 0);
351         while((GPLR(gpio) & GPIO_bit(gpio)) != 0);
352 }
353
354 static unsigned long corgi_get_hsync_invperiod(void)
355 {
356         if (!get_hsync_invperiod)
357                 get_hsync_invperiod = symbol_get(w100fb_get_hsynclen);
358         if (!get_hsync_invperiod)
359                 return 0;
360
361         return get_hsync_invperiod(&corgifb_device.dev);
362 }
363
364 static void corgi_put_hsync(void)
365 {
366         if (get_hsync_invperiod)
367                 symbol_put(w100fb_get_hsynclen);
368         get_hsync_invperiod = NULL;
369 }
370
371 static void corgi_wait_hsync(void)
372 {
373         sharpsl_wait_sync(CORGI_GPIO_HSYNC);
374 }
375
376 static struct resource corgits_resources[] = {
377         [0] = {
378                 .start          = CORGI_IRQ_GPIO_TP_INT,
379                 .end            = CORGI_IRQ_GPIO_TP_INT,
380                 .flags          = IORESOURCE_IRQ,
381         },
382 };
383
384 static struct corgits_machinfo  corgi_ts_machinfo = {
385         .get_hsync_invperiod = corgi_get_hsync_invperiod,
386         .put_hsync           = corgi_put_hsync,
387         .wait_hsync          = corgi_wait_hsync,
388 };
389
390 static struct platform_device corgits_device = {
391         .name           = "corgi-ts",
392         .dev            = {
393                 .parent = &corgissp_device.dev,
394                 .platform_data  = &corgi_ts_machinfo,
395         },
396         .id             = -1,
397         .num_resources  = ARRAY_SIZE(corgits_resources),
398         .resource       = corgits_resources,
399 };
400
401
402 /*
403  * MMC/SD Device
404  *
405  * The card detect interrupt isn't debounced so we delay it by 250ms
406  * to give the card a chance to fully insert/eject.
407  */
408 static struct pxamci_platform_data corgi_mci_platform_data;
409
410 static int corgi_mci_init(struct device *dev, irq_handler_t corgi_detect_int, void *data)
411 {
412         int err;
413
414         /* setup GPIO for PXA25x MMC controller */
415         pxa_gpio_mode(GPIO6_MMCCLK_MD);
416         pxa_gpio_mode(GPIO8_MMCCS0_MD);
417         pxa_gpio_mode(CORGI_GPIO_nSD_DETECT | GPIO_IN);
418         pxa_gpio_mode(CORGI_GPIO_SD_PWR | GPIO_OUT);
419
420         corgi_mci_platform_data.detect_delay = msecs_to_jiffies(250);
421
422         err = request_irq(CORGI_IRQ_GPIO_nSD_DETECT, corgi_detect_int,
423                           IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
424                           "MMC card detect", data);
425         if (err)
426                 printk(KERN_ERR "corgi_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
427
428         return err;
429 }
430
431 static void corgi_mci_setpower(struct device *dev, unsigned int vdd)
432 {
433         struct pxamci_platform_data* p_d = dev->platform_data;
434
435         if (( 1 << vdd) & p_d->ocr_mask)
436                 GPSR1 = GPIO_bit(CORGI_GPIO_SD_PWR);
437         else
438                 GPCR1 = GPIO_bit(CORGI_GPIO_SD_PWR);
439 }
440
441 static int corgi_mci_get_ro(struct device *dev)
442 {
443         return GPLR(CORGI_GPIO_nSD_WP) & GPIO_bit(CORGI_GPIO_nSD_WP);
444 }
445
446 static void corgi_mci_exit(struct device *dev, void *data)
447 {
448         free_irq(CORGI_IRQ_GPIO_nSD_DETECT, data);
449 }
450
451 static struct pxamci_platform_data corgi_mci_platform_data = {
452         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
453         .init           = corgi_mci_init,
454         .get_ro         = corgi_mci_get_ro,
455         .setpower       = corgi_mci_setpower,
456         .exit           = corgi_mci_exit,
457 };
458
459
460 /*
461  * Irda
462  */
463 static void corgi_irda_transceiver_mode(struct device *dev, int mode)
464 {
465         if (mode & IR_OFF)
466                 GPSR(CORGI_GPIO_IR_ON) = GPIO_bit(CORGI_GPIO_IR_ON);
467         else
468                 GPCR(CORGI_GPIO_IR_ON) = GPIO_bit(CORGI_GPIO_IR_ON);
469         pxa2xx_transceiver_mode(dev, mode);
470 }
471
472 static struct pxaficp_platform_data corgi_ficp_platform_data = {
473         .transceiver_cap  = IR_SIRMODE | IR_OFF,
474         .transceiver_mode = corgi_irda_transceiver_mode,
475 };
476
477
478 /*
479  * USB Device Controller
480  */
481 static struct pxa2xx_udc_mach_info udc_info __initdata = {
482         /* no connect GPIO; corgi can't tell connection status */
483         .gpio_pullup            = CORGI_GPIO_USB_PULLUP,
484 };
485
486
487 static struct platform_device *devices[] __initdata = {
488         &corgiscoop_device,
489         &corgissp_device,
490         &corgifb_device,
491         &corgikbd_device,
492         &corgibl_device,
493         &corgits_device,
494         &corgiled_device,
495 };
496
497 static void corgi_poweroff(void)
498 {
499         if (!machine_is_corgi())
500                 /* Green LED off tells the bootloader to halt */
501                 reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_LED_GREEN);
502         arm_machine_restart('h');
503 }
504
505 static void corgi_restart(char mode)
506 {
507         if (!machine_is_corgi())
508                 /* Green LED on tells the bootloader to reboot */
509                 set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_LED_GREEN);
510         arm_machine_restart('h');
511 }
512
513 static void __init corgi_init(void)
514 {
515         pm_power_off = corgi_poweroff;
516         arm_pm_restart = corgi_restart;
517
518         /* setup sleep mode values */
519         PWER  = 0x00000002;
520         PFER  = 0x00000000;
521         PRER  = 0x00000002;
522         PGSR0 = 0x0158C000;
523         PGSR1 = 0x00FF0080;
524         PGSR2 = 0x0001C004;
525         /* Stop 3.6MHz and drive HIGH to PCMCIA and CS */
526         PCFR |= PCFR_OPDE;
527
528         corgi_ssp_set_machinfo(&corgi_ssp_machinfo);
529
530         pxa_gpio_mode(CORGI_GPIO_IR_ON | GPIO_OUT);
531         pxa_gpio_mode(CORGI_GPIO_HSYNC | GPIO_IN);
532
533         pxa_set_udc_info(&udc_info);
534         pxa_set_mci_info(&corgi_mci_platform_data);
535         pxa_set_ficp_info(&corgi_ficp_platform_data);
536         pxa_set_i2c_info(NULL);
537
538         platform_scoop_config = &corgi_pcmcia_config;
539
540         platform_add_devices(devices, ARRAY_SIZE(devices));
541 }
542
543 static void __init fixup_corgi(struct machine_desc *desc,
544                 struct tag *tags, char **cmdline, struct meminfo *mi)
545 {
546         sharpsl_save_param();
547         mi->nr_banks=1;
548         mi->bank[0].start = 0xa0000000;
549         mi->bank[0].node = 0;
550         if (machine_is_corgi())
551                 mi->bank[0].size = (32*1024*1024);
552         else
553                 mi->bank[0].size = (64*1024*1024);
554 }
555
556 #ifdef CONFIG_MACH_CORGI
557 MACHINE_START(CORGI, "SHARP Corgi")
558         .phys_io        = 0x40000000,
559         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
560         .fixup          = fixup_corgi,
561         .map_io         = pxa_map_io,
562         .init_irq       = pxa25x_init_irq,
563         .init_machine   = corgi_init,
564         .timer          = &pxa_timer,
565 MACHINE_END
566 #endif
567
568 #ifdef CONFIG_MACH_SHEPHERD
569 MACHINE_START(SHEPHERD, "SHARP Shepherd")
570         .phys_io        = 0x40000000,
571         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
572         .fixup          = fixup_corgi,
573         .map_io         = pxa_map_io,
574         .init_irq       = pxa25x_init_irq,
575         .init_machine   = corgi_init,
576         .timer          = &pxa_timer,
577 MACHINE_END
578 #endif
579
580 #ifdef CONFIG_MACH_HUSKY
581 MACHINE_START(HUSKY, "SHARP Husky")
582         .phys_io        = 0x40000000,
583         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
584         .fixup          = fixup_corgi,
585         .map_io         = pxa_map_io,
586         .init_irq       = pxa25x_init_irq,
587         .init_machine   = corgi_init,
588         .timer          = &pxa_timer,
589 MACHINE_END
590 #endif
591