[ARM] pxa: factor pxamci gpio handling
[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/mtd/physmap.h>
23 #include <linux/pm.h>
24 #include <linux/gpio.h>
25 #include <linux/backlight.h>
26 #include <linux/i2c.h>
27 #include <linux/io.h>
28 #include <linux/spi/spi.h>
29 #include <linux/spi/ads7846.h>
30 #include <linux/spi/corgi_lcd.h>
31 #include <linux/mtd/sharpsl.h>
32 #include <video/w100fb.h>
33
34 #include <asm/setup.h>
35 #include <asm/memory.h>
36 #include <asm/mach-types.h>
37 #include <mach/hardware.h>
38 #include <asm/irq.h>
39 #include <asm/system.h>
40
41 #include <asm/mach/arch.h>
42 #include <asm/mach/map.h>
43 #include <asm/mach/irq.h>
44
45 #include <mach/pxa25x.h>
46 #include <plat/i2c.h>
47 #include <mach/irda.h>
48 #include <mach/mmc.h>
49 #include <mach/udc.h>
50 #include <mach/pxa2xx_spi.h>
51 #include <mach/corgi.h>
52 #include <mach/sharpsl.h>
53
54 #include <asm/mach/sharpsl_param.h>
55 #include <asm/hardware/scoop.h>
56
57 #include "generic.h"
58 #include "devices.h"
59 #include "sharpsl.h"
60
61 static unsigned long corgi_pin_config[] __initdata = {
62         /* Static Memory I/O */
63         GPIO78_nCS_2,   /* w100fb */
64         GPIO80_nCS_4,   /* scoop */
65
66         /* SSP1 */
67         GPIO23_SSP1_SCLK,
68         GPIO25_SSP1_TXD,
69         GPIO26_SSP1_RXD,
70         GPIO24_GPIO,    /* CORGI_GPIO_ADS7846_CS - SFRM as chip select */
71
72         /* I2S */
73         GPIO28_I2S_BITCLK_OUT,
74         GPIO29_I2S_SDATA_IN,
75         GPIO30_I2S_SDATA_OUT,
76         GPIO31_I2S_SYNC,
77         GPIO32_I2S_SYSCLK,
78
79         /* Infra-Red */
80         GPIO47_FICP_TXD,
81         GPIO46_FICP_RXD,
82
83         /* FFUART */
84         GPIO40_FFUART_DTR,
85         GPIO41_FFUART_RTS,
86         GPIO39_FFUART_TXD,
87         GPIO37_FFUART_DSR,
88         GPIO34_FFUART_RXD,
89         GPIO35_FFUART_CTS,
90
91         /* PC Card */
92         GPIO48_nPOE,
93         GPIO49_nPWE,
94         GPIO50_nPIOR,
95         GPIO51_nPIOW,
96         GPIO52_nPCE_1,
97         GPIO53_nPCE_2,
98         GPIO54_nPSKTSEL,
99         GPIO55_nPREG,
100         GPIO56_nPWAIT,
101         GPIO57_nIOIS16,
102
103         /* MMC */
104         GPIO6_MMC_CLK,
105         GPIO8_MMC_CS0,
106
107         /* GPIO */
108         GPIO9_GPIO,     /* CORGI_GPIO_nSD_DETECT */
109         GPIO7_GPIO,     /* CORGI_GPIO_nSD_WP */
110         GPIO33_GPIO,    /* CORGI_GPIO_SD_PWR */
111         GPIO22_GPIO,    /* CORGI_GPIO_IR_ON */
112         GPIO44_GPIO,    /* CORGI_GPIO_HSYNC */
113
114         GPIO1_GPIO | WAKEUP_ON_EDGE_RISE,
115 };
116
117 /*
118  * Corgi SCOOP Device
119  */
120 static struct resource corgi_scoop_resources[] = {
121         [0] = {
122                 .start          = 0x10800000,
123                 .end            = 0x10800fff,
124                 .flags          = IORESOURCE_MEM,
125         },
126 };
127
128 static struct scoop_config corgi_scoop_setup = {
129         .io_dir         = CORGI_SCOOP_IO_DIR,
130         .io_out         = CORGI_SCOOP_IO_OUT,
131         .gpio_base      = CORGI_SCOOP_GPIO_BASE,
132 };
133
134 struct platform_device corgiscoop_device = {
135         .name           = "sharp-scoop",
136         .id             = -1,
137         .dev            = {
138                 .platform_data  = &corgi_scoop_setup,
139         },
140         .num_resources  = ARRAY_SIZE(corgi_scoop_resources),
141         .resource       = corgi_scoop_resources,
142 };
143
144 static struct scoop_pcmcia_dev corgi_pcmcia_scoop[] = {
145 {
146         .dev        = &corgiscoop_device.dev,
147         .irq        = CORGI_IRQ_GPIO_CF_IRQ,
148         .cd_irq     = CORGI_IRQ_GPIO_CF_CD,
149         .cd_irq_str = "PCMCIA0 CD",
150 },
151 };
152
153 static struct scoop_pcmcia_config corgi_pcmcia_config = {
154         .devs         = &corgi_pcmcia_scoop[0],
155         .num_devs     = 1,
156 };
157
158 EXPORT_SYMBOL(corgiscoop_device);
159
160 static struct w100_mem_info corgi_fb_mem = {
161         .ext_cntl          = 0x00040003,
162         .sdram_mode_reg    = 0x00650021,
163         .ext_timing_cntl   = 0x10002a4a,
164         .io_cntl           = 0x7ff87012,
165         .size              = 0x1fffff,
166 };
167
168 static struct w100_gen_regs corgi_fb_regs = {
169         .lcd_format    = 0x00000003,
170         .lcdd_cntl1    = 0x01CC0000,
171         .lcdd_cntl2    = 0x0003FFFF,
172         .genlcd_cntl1  = 0x00FFFF0D,
173         .genlcd_cntl2  = 0x003F3003,
174         .genlcd_cntl3  = 0x000102aa,
175 };
176
177 static struct w100_gpio_regs corgi_fb_gpio = {
178         .init_data1   = 0x000000bf,
179         .init_data2   = 0x00000000,
180         .gpio_dir1    = 0x00000000,
181         .gpio_oe1     = 0x03c0feff,
182         .gpio_dir2    = 0x00000000,
183         .gpio_oe2     = 0x00000000,
184 };
185
186 static struct w100_mode corgi_fb_modes[] = {
187 {
188         .xres            = 480,
189         .yres            = 640,
190         .left_margin     = 0x56,
191         .right_margin    = 0x55,
192         .upper_margin    = 0x03,
193         .lower_margin    = 0x00,
194         .crtc_ss         = 0x82360056,
195         .crtc_ls         = 0xA0280000,
196         .crtc_gs         = 0x80280028,
197         .crtc_vpos_gs    = 0x02830002,
198         .crtc_rev        = 0x00400008,
199         .crtc_dclk       = 0xA0000000,
200         .crtc_gclk       = 0x8015010F,
201         .crtc_goe        = 0x80100110,
202         .crtc_ps1_active = 0x41060010,
203         .pll_freq        = 75,
204         .fast_pll_freq   = 100,
205         .sysclk_src      = CLK_SRC_PLL,
206         .sysclk_divider  = 0,
207         .pixclk_src      = CLK_SRC_PLL,
208         .pixclk_divider  = 2,
209         .pixclk_divider_rotated = 6,
210 },{
211         .xres            = 240,
212         .yres            = 320,
213         .left_margin     = 0x27,
214         .right_margin    = 0x2e,
215         .upper_margin    = 0x01,
216         .lower_margin    = 0x00,
217         .crtc_ss         = 0x81170027,
218         .crtc_ls         = 0xA0140000,
219         .crtc_gs         = 0xC0140014,
220         .crtc_vpos_gs    = 0x00010141,
221         .crtc_rev        = 0x00400008,
222         .crtc_dclk       = 0xA0000000,
223         .crtc_gclk       = 0x8015010F,
224         .crtc_goe        = 0x80100110,
225         .crtc_ps1_active = 0x41060010,
226         .pll_freq        = 0,
227         .fast_pll_freq   = 0,
228         .sysclk_src      = CLK_SRC_XTAL,
229         .sysclk_divider  = 0,
230         .pixclk_src      = CLK_SRC_XTAL,
231         .pixclk_divider  = 1,
232         .pixclk_divider_rotated = 1,
233 },
234
235 };
236
237 static struct w100fb_mach_info corgi_fb_info = {
238         .init_mode  = INIT_MODE_ROTATED,
239         .mem        = &corgi_fb_mem,
240         .regs       = &corgi_fb_regs,
241         .modelist   = &corgi_fb_modes[0],
242         .num_modes  = 2,
243         .gpio       = &corgi_fb_gpio,
244         .xtal_freq  = 12500000,
245         .xtal_dbl   = 0,
246 };
247
248 static struct resource corgi_fb_resources[] = {
249         [0] = {
250                 .start   = 0x08000000,
251                 .end     = 0x08ffffff,
252                 .flags   = IORESOURCE_MEM,
253         },
254 };
255
256 static struct platform_device corgifb_device = {
257         .name           = "w100fb",
258         .id             = -1,
259         .num_resources  = ARRAY_SIZE(corgi_fb_resources),
260         .resource       = corgi_fb_resources,
261         .dev            = {
262                 .platform_data = &corgi_fb_info,
263         },
264
265 };
266
267 /*
268  * Corgi Keyboard Device
269  */
270 static struct platform_device corgikbd_device = {
271         .name           = "corgi-keyboard",
272         .id             = -1,
273 };
274
275 /*
276  * Corgi LEDs
277  */
278 static struct gpio_led corgi_gpio_leds[] = {
279         {
280                 .name                   = "corgi:amber:charge",
281                 .default_trigger        = "sharpsl-charge",
282                 .gpio                   = CORGI_GPIO_LED_ORANGE,
283         },
284         {
285                 .name                   = "corgi:green:mail",
286                 .default_trigger        = "nand-disk",
287                 .gpio                   = CORGI_GPIO_LED_GREEN,
288         },
289 };
290
291 static struct gpio_led_platform_data corgi_gpio_leds_info = {
292         .leds           = corgi_gpio_leds,
293         .num_leds       = ARRAY_SIZE(corgi_gpio_leds),
294 };
295
296 static struct platform_device corgiled_device = {
297         .name           = "leds-gpio",
298         .id             = -1,
299         .dev            = {
300                 .platform_data = &corgi_gpio_leds_info,
301         },
302 };
303
304 /*
305  * MMC/SD Device
306  *
307  * The card detect interrupt isn't debounced so we delay it by 250ms
308  * to give the card a chance to fully insert/eject.
309  */
310 static struct pxamci_platform_data corgi_mci_platform_data = {
311         .ocr_mask               = MMC_VDD_32_33|MMC_VDD_33_34,
312         .gpio_card_detect       = -1,
313         .gpio_card_ro           = CORGI_GPIO_nSD_WP,
314         .gpio_power             = CORGI_GPIO_SD_PWR,
315 };
316
317
318 /*
319  * Irda
320  */
321 static void corgi_irda_transceiver_mode(struct device *dev, int mode)
322 {
323         gpio_set_value(CORGI_GPIO_IR_ON, mode & IR_OFF);
324         pxa2xx_transceiver_mode(dev, mode);
325 }
326
327 static int corgi_irda_startup(struct device *dev)
328 {
329         int err;
330
331         err = gpio_request(CORGI_GPIO_IR_ON, "IR_ON");
332         if (err)
333                 return err;
334
335         gpio_direction_output(CORGI_GPIO_IR_ON, 1);
336         return 0;
337 }
338
339 static void corgi_irda_shutdown(struct device *dev)
340 {
341         gpio_free(CORGI_GPIO_IR_ON);
342 }
343
344 static struct pxaficp_platform_data corgi_ficp_platform_data = {
345         .transceiver_cap        = IR_SIRMODE | IR_OFF,
346         .transceiver_mode       = corgi_irda_transceiver_mode,
347         .startup                = corgi_irda_startup,
348         .shutdown               = corgi_irda_shutdown,
349 };
350
351
352 /*
353  * USB Device Controller
354  */
355 static struct pxa2xx_udc_mach_info udc_info __initdata = {
356         /* no connect GPIO; corgi can't tell connection status */
357         .gpio_pullup            = CORGI_GPIO_USB_PULLUP,
358 };
359
360 #if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MASTER)
361 static struct pxa2xx_spi_master corgi_spi_info = {
362         .num_chipselect = 3,
363 };
364
365 static void corgi_wait_for_hsync(void)
366 {
367         while (gpio_get_value(CORGI_GPIO_HSYNC))
368                 cpu_relax();
369
370         while (!gpio_get_value(CORGI_GPIO_HSYNC))
371                 cpu_relax();
372 }
373
374 static struct ads7846_platform_data corgi_ads7846_info = {
375         .model                  = 7846,
376         .vref_delay_usecs       = 100,
377         .x_plate_ohms           = 419,
378         .y_plate_ohms           = 486,
379         .gpio_pendown           = CORGI_GPIO_TP_INT,
380         .wait_for_sync          = corgi_wait_for_hsync,
381 };
382
383 static struct pxa2xx_spi_chip corgi_ads7846_chip = {
384         .gpio_cs        = CORGI_GPIO_ADS7846_CS,
385 };
386
387 static void corgi_bl_kick_battery(void)
388 {
389         void (*kick_batt)(void);
390
391         kick_batt = symbol_get(sharpsl_battery_kick);
392         if (kick_batt) {
393                 kick_batt();
394                 symbol_put(sharpsl_battery_kick);
395         }
396 }
397
398 static struct corgi_lcd_platform_data corgi_lcdcon_info = {
399         .init_mode              = CORGI_LCD_MODE_VGA,
400         .max_intensity          = 0x2f,
401         .default_intensity      = 0x1f,
402         .limit_mask             = 0x0b,
403         .gpio_backlight_cont    = CORGI_GPIO_BACKLIGHT_CONT,
404         .gpio_backlight_on      = -1,
405         .kick_battery           = corgi_bl_kick_battery,
406 };
407
408 static struct pxa2xx_spi_chip corgi_lcdcon_chip = {
409         .gpio_cs        = CORGI_GPIO_LCDCON_CS,
410 };
411
412 static struct pxa2xx_spi_chip corgi_max1111_chip = {
413         .gpio_cs        = CORGI_GPIO_MAX1111_CS,
414 };
415
416 static struct spi_board_info corgi_spi_devices[] = {
417         {
418                 .modalias       = "ads7846",
419                 .max_speed_hz   = 1200000,
420                 .bus_num        = 1,
421                 .chip_select    = 0,
422                 .platform_data  = &corgi_ads7846_info,
423                 .controller_data= &corgi_ads7846_chip,
424                 .irq            = gpio_to_irq(CORGI_GPIO_TP_INT),
425         }, {
426                 .modalias       = "corgi-lcd",
427                 .max_speed_hz   = 50000,
428                 .bus_num        = 1,
429                 .chip_select    = 1,
430                 .platform_data  = &corgi_lcdcon_info,
431                 .controller_data= &corgi_lcdcon_chip,
432         }, {
433                 .modalias       = "max1111",
434                 .max_speed_hz   = 450000,
435                 .bus_num        = 1,
436                 .chip_select    = 2,
437                 .controller_data= &corgi_max1111_chip,
438         },
439 };
440
441 static void __init corgi_init_spi(void)
442 {
443         pxa2xx_set_spi_info(1, &corgi_spi_info);
444         spi_register_board_info(ARRAY_AND_SIZE(corgi_spi_devices));
445 }
446 #else
447 static inline void corgi_init_spi(void) {}
448 #endif
449
450 static struct mtd_partition sharpsl_nand_partitions[] = {
451         {
452                 .name = "System Area",
453                 .offset = 0,
454                 .size = 7 * 1024 * 1024,
455         },
456         {
457                 .name = "Root Filesystem",
458                 .offset = 7 * 1024 * 1024,
459                 .size = 25 * 1024 * 1024,
460         },
461         {
462                 .name = "Home Filesystem",
463                 .offset = MTDPART_OFS_APPEND,
464                 .size = MTDPART_SIZ_FULL,
465         },
466 };
467
468 static uint8_t scan_ff_pattern[] = { 0xff, 0xff };
469
470 static struct nand_bbt_descr sharpsl_bbt = {
471         .options = 0,
472         .offs = 4,
473         .len = 2,
474         .pattern = scan_ff_pattern
475 };
476
477 static struct sharpsl_nand_platform_data sharpsl_nand_platform_data = {
478         .badblock_pattern       = &sharpsl_bbt,
479         .partitions             = sharpsl_nand_partitions,
480         .nr_partitions          = ARRAY_SIZE(sharpsl_nand_partitions),
481 };
482
483 static struct resource sharpsl_nand_resources[] = {
484         {
485                 .start  = 0x0C000000,
486                 .end    = 0x0C000FFF,
487                 .flags  = IORESOURCE_MEM,
488         },
489 };
490
491 static struct platform_device sharpsl_nand_device = {
492         .name           = "sharpsl-nand",
493         .id             = -1,
494         .resource       = sharpsl_nand_resources,
495         .num_resources  = ARRAY_SIZE(sharpsl_nand_resources),
496         .dev.platform_data      = &sharpsl_nand_platform_data,
497 };
498
499 static struct mtd_partition sharpsl_rom_parts[] = {
500         {
501                 .name   ="Boot PROM Filesystem",
502                 .offset = 0x00120000,
503                 .size   = MTDPART_SIZ_FULL,
504         },
505 };
506
507 static struct physmap_flash_data sharpsl_rom_data = {
508         .width          = 2,
509         .nr_parts       = ARRAY_SIZE(sharpsl_rom_parts),
510         .parts          = sharpsl_rom_parts,
511 };
512
513 static struct resource sharpsl_rom_resources[] = {
514         {
515                 .start  = 0x00000000,
516                 .end    = 0x007fffff,
517                 .flags  = IORESOURCE_MEM,
518         },
519 };
520
521 static struct platform_device sharpsl_rom_device = {
522         .name   = "physmap-flash",
523         .id     = -1,
524         .resource = sharpsl_rom_resources,
525         .num_resources = ARRAY_SIZE(sharpsl_rom_resources),
526         .dev.platform_data = &sharpsl_rom_data,
527 };
528
529 static struct platform_device *devices[] __initdata = {
530         &corgiscoop_device,
531         &corgifb_device,
532         &corgikbd_device,
533         &corgiled_device,
534         &sharpsl_nand_device,
535         &sharpsl_rom_device,
536 };
537
538 static struct i2c_board_info __initdata corgi_i2c_devices[] = {
539         { I2C_BOARD_INFO("wm8731", 0x1b) },
540 };
541
542 static void corgi_poweroff(void)
543 {
544         if (!machine_is_corgi())
545                 /* Green LED off tells the bootloader to halt */
546                 gpio_set_value(CORGI_GPIO_LED_GREEN, 0);
547
548         arm_machine_restart('h', NULL);
549 }
550
551 static void corgi_restart(char mode, const char *cmd)
552 {
553         if (!machine_is_corgi())
554                 /* Green LED on tells the bootloader to reboot */
555                 gpio_set_value(CORGI_GPIO_LED_GREEN, 1);
556
557         arm_machine_restart('h', cmd);
558 }
559
560 static void __init corgi_init(void)
561 {
562         pm_power_off = corgi_poweroff;
563         arm_pm_restart = corgi_restart;
564
565         /* Stop 3.6MHz and drive HIGH to PCMCIA and CS */
566         PCFR |= PCFR_OPDE;
567
568         pxa2xx_mfp_config(ARRAY_AND_SIZE(corgi_pin_config));
569
570         corgi_init_spi();
571
572         pxa_set_udc_info(&udc_info);
573         corgi_mci_platform_data.detect_delay = msecs_to_jiffies(250);
574         pxa_set_mci_info(&corgi_mci_platform_data);
575         pxa_set_ficp_info(&corgi_ficp_platform_data);
576         pxa_set_i2c_info(NULL);
577         i2c_register_board_info(0, ARRAY_AND_SIZE(corgi_i2c_devices));
578
579         platform_scoop_config = &corgi_pcmcia_config;
580
581         if (machine_is_husky())
582                 sharpsl_nand_partitions[1].size = 53 * 1024 * 1024;
583
584         platform_add_devices(devices, ARRAY_SIZE(devices));
585 }
586
587 static void __init fixup_corgi(struct machine_desc *desc,
588                 struct tag *tags, char **cmdline, struct meminfo *mi)
589 {
590         sharpsl_save_param();
591         mi->nr_banks=1;
592         mi->bank[0].start = 0xa0000000;
593         mi->bank[0].node = 0;
594         if (machine_is_corgi())
595                 mi->bank[0].size = (32*1024*1024);
596         else
597                 mi->bank[0].size = (64*1024*1024);
598 }
599
600 #ifdef CONFIG_MACH_CORGI
601 MACHINE_START(CORGI, "SHARP Corgi")
602         .phys_io        = 0x40000000,
603         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
604         .fixup          = fixup_corgi,
605         .map_io         = pxa_map_io,
606         .init_irq       = pxa25x_init_irq,
607         .init_machine   = corgi_init,
608         .timer          = &pxa_timer,
609 MACHINE_END
610 #endif
611
612 #ifdef CONFIG_MACH_SHEPHERD
613 MACHINE_START(SHEPHERD, "SHARP Shepherd")
614         .phys_io        = 0x40000000,
615         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
616         .fixup          = fixup_corgi,
617         .map_io         = pxa_map_io,
618         .init_irq       = pxa25x_init_irq,
619         .init_machine   = corgi_init,
620         .timer          = &pxa_timer,
621 MACHINE_END
622 #endif
623
624 #ifdef CONFIG_MACH_HUSKY
625 MACHINE_START(HUSKY, "SHARP Husky")
626         .phys_io        = 0x40000000,
627         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
628         .fixup          = fixup_corgi,
629         .map_io         = pxa_map_io,
630         .init_irq       = pxa25x_init_irq,
631         .init_machine   = corgi_init,
632         .timer          = &pxa_timer,
633 MACHINE_END
634 #endif
635