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