5c08c4e9cd22fd3b13761fb5b3f9ba73f4f15496
[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/gpio.h>
24 #include <linux/backlight.h>
25 #include <linux/spi/spi.h>
26 #include <linux/spi/ads7846.h>
27 #include <linux/spi/corgi_lcd.h>
28 #include <video/w100fb.h>
29
30 #include <asm/setup.h>
31 #include <asm/memory.h>
32 #include <asm/mach-types.h>
33 #include <mach/hardware.h>
34 #include <asm/irq.h>
35 #include <asm/io.h>
36 #include <asm/system.h>
37
38 #include <asm/mach/arch.h>
39 #include <asm/mach/map.h>
40 #include <asm/mach/irq.h>
41
42 #include <mach/pxa-regs.h>
43 #include <mach/pxa2xx-regs.h>
44 #include <mach/mfp-pxa25x.h>
45 #include <mach/i2c.h>
46 #include <mach/irda.h>
47 #include <mach/mmc.h>
48 #include <mach/udc.h>
49 #include <mach/pxa2xx_spi.h>
50 #include <mach/corgi.h>
51 #include <mach/sharpsl.h>
52
53 #include <asm/mach/sharpsl_param.h>
54 #include <asm/hardware/scoop.h>
55
56 #include "generic.h"
57 #include "devices.h"
58 #include "sharpsl.h"
59
60 static unsigned long corgi_pin_config[] __initdata = {
61         /* Static Memory I/O */
62         GPIO78_nCS_2,   /* w100fb */
63         GPIO80_nCS_4,   /* scoop */
64
65         /* SSP1 */
66         GPIO23_SSP1_SCLK,
67         GPIO25_SSP1_TXD,
68         GPIO26_SSP1_RXD,
69         GPIO24_GPIO,    /* CORGI_GPIO_ADS7846_CS - SFRM as chip select */
70
71         /* I2S */
72         GPIO28_I2S_BITCLK_OUT,
73         GPIO29_I2S_SDATA_IN,
74         GPIO30_I2S_SDATA_OUT,
75         GPIO31_I2S_SYNC,
76         GPIO32_I2S_SYSCLK,
77
78         /* Infra-Red */
79         GPIO47_FICP_TXD,
80         GPIO46_FICP_RXD,
81
82         /* FFUART */
83         GPIO40_FFUART_DTR,
84         GPIO41_FFUART_RTS,
85         GPIO39_FFUART_TXD,
86         GPIO37_FFUART_DSR,
87         GPIO34_FFUART_RXD,
88         GPIO35_FFUART_CTS,
89
90         /* PC Card */
91         GPIO48_nPOE,
92         GPIO49_nPWE,
93         GPIO50_nPIOR,
94         GPIO51_nPIOW,
95         GPIO52_nPCE_1,
96         GPIO53_nPCE_2,
97         GPIO54_nPSKTSEL,
98         GPIO55_nPREG,
99         GPIO56_nPWAIT,
100         GPIO57_nIOIS16,
101
102         /* MMC */
103         GPIO6_MMC_CLK,
104         GPIO8_MMC_CS0,
105
106         /* GPIO */
107         GPIO9_GPIO,     /* CORGI_GPIO_nSD_DETECT */
108         GPIO7_GPIO,     /* CORGI_GPIO_nSD_WP */
109         GPIO33_GPIO,    /* CORGI_GPIO_SD_PWR */
110         GPIO22_GPIO,    /* CORGI_GPIO_IR_ON */
111         GPIO44_GPIO,    /* CORGI_GPIO_HSYNC */
112
113         GPIO1_GPIO | WAKEUP_ON_EDGE_RISE,
114 };
115
116 /*
117  * Corgi SCOOP Device
118  */
119 static struct resource corgi_scoop_resources[] = {
120         [0] = {
121                 .start          = 0x10800000,
122                 .end            = 0x10800fff,
123                 .flags          = IORESOURCE_MEM,
124         },
125 };
126
127 static struct scoop_config corgi_scoop_setup = {
128         .io_dir         = CORGI_SCOOP_IO_DIR,
129         .io_out         = CORGI_SCOOP_IO_OUT,
130         .gpio_base      = CORGI_SCOOP_GPIO_BASE,
131 };
132
133 struct platform_device corgiscoop_device = {
134         .name           = "sharp-scoop",
135         .id             = -1,
136         .dev            = {
137                 .platform_data  = &corgi_scoop_setup,
138         },
139         .num_resources  = ARRAY_SIZE(corgi_scoop_resources),
140         .resource       = corgi_scoop_resources,
141 };
142
143 static struct scoop_pcmcia_dev corgi_pcmcia_scoop[] = {
144 {
145         .dev        = &corgiscoop_device.dev,
146         .irq        = CORGI_IRQ_GPIO_CF_IRQ,
147         .cd_irq     = CORGI_IRQ_GPIO_CF_CD,
148         .cd_irq_str = "PCMCIA0 CD",
149 },
150 };
151
152 static struct scoop_pcmcia_config corgi_pcmcia_config = {
153         .devs         = &corgi_pcmcia_scoop[0],
154         .num_devs     = 1,
155 };
156
157 EXPORT_SYMBOL(corgiscoop_device);
158
159 static struct w100_mem_info corgi_fb_mem = {
160         .ext_cntl          = 0x00040003,
161         .sdram_mode_reg    = 0x00650021,
162         .ext_timing_cntl   = 0x10002a4a,
163         .io_cntl           = 0x7ff87012,
164         .size              = 0x1fffff,
165 };
166
167 static struct w100_gen_regs corgi_fb_regs = {
168         .lcd_format    = 0x00000003,
169         .lcdd_cntl1    = 0x01CC0000,
170         .lcdd_cntl2    = 0x0003FFFF,
171         .genlcd_cntl1  = 0x00FFFF0D,
172         .genlcd_cntl2  = 0x003F3003,
173         .genlcd_cntl3  = 0x000102aa,
174 };
175
176 static struct w100_gpio_regs corgi_fb_gpio = {
177         .init_data1   = 0x000000bf,
178         .init_data2   = 0x00000000,
179         .gpio_dir1    = 0x00000000,
180         .gpio_oe1     = 0x03c0feff,
181         .gpio_dir2    = 0x00000000,
182         .gpio_oe2     = 0x00000000,
183 };
184
185 static struct w100_mode corgi_fb_modes[] = {
186 {
187         .xres            = 480,
188         .yres            = 640,
189         .left_margin     = 0x56,
190         .right_margin    = 0x55,
191         .upper_margin    = 0x03,
192         .lower_margin    = 0x00,
193         .crtc_ss         = 0x82360056,
194         .crtc_ls         = 0xA0280000,
195         .crtc_gs         = 0x80280028,
196         .crtc_vpos_gs    = 0x02830002,
197         .crtc_rev        = 0x00400008,
198         .crtc_dclk       = 0xA0000000,
199         .crtc_gclk       = 0x8015010F,
200         .crtc_goe        = 0x80100110,
201         .crtc_ps1_active = 0x41060010,
202         .pll_freq        = 75,
203         .fast_pll_freq   = 100,
204         .sysclk_src      = CLK_SRC_PLL,
205         .sysclk_divider  = 0,
206         .pixclk_src      = CLK_SRC_PLL,
207         .pixclk_divider  = 2,
208         .pixclk_divider_rotated = 6,
209 },{
210         .xres            = 240,
211         .yres            = 320,
212         .left_margin     = 0x27,
213         .right_margin    = 0x2e,
214         .upper_margin    = 0x01,
215         .lower_margin    = 0x00,
216         .crtc_ss         = 0x81170027,
217         .crtc_ls         = 0xA0140000,
218         .crtc_gs         = 0xC0140014,
219         .crtc_vpos_gs    = 0x00010141,
220         .crtc_rev        = 0x00400008,
221         .crtc_dclk       = 0xA0000000,
222         .crtc_gclk       = 0x8015010F,
223         .crtc_goe        = 0x80100110,
224         .crtc_ps1_active = 0x41060010,
225         .pll_freq        = 0,
226         .fast_pll_freq   = 0,
227         .sysclk_src      = CLK_SRC_XTAL,
228         .sysclk_divider  = 0,
229         .pixclk_src      = CLK_SRC_XTAL,
230         .pixclk_divider  = 1,
231         .pixclk_divider_rotated = 1,
232 },
233
234 };
235
236 static struct w100fb_mach_info corgi_fb_info = {
237         .init_mode  = INIT_MODE_ROTATED,
238         .mem        = &corgi_fb_mem,
239         .regs       = &corgi_fb_regs,
240         .modelist   = &corgi_fb_modes[0],
241         .num_modes  = 2,
242         .gpio       = &corgi_fb_gpio,
243         .xtal_freq  = 12500000,
244         .xtal_dbl   = 0,
245 };
246
247 static struct resource corgi_fb_resources[] = {
248         [0] = {
249                 .start   = 0x08000000,
250                 .end     = 0x08ffffff,
251                 .flags   = IORESOURCE_MEM,
252         },
253 };
254
255 static struct platform_device corgifb_device = {
256         .name           = "w100fb",
257         .id             = -1,
258         .num_resources  = ARRAY_SIZE(corgi_fb_resources),
259         .resource       = corgi_fb_resources,
260         .dev            = {
261                 .platform_data = &corgi_fb_info,
262         },
263
264 };
265
266 /*
267  * Corgi Keyboard Device
268  */
269 static struct platform_device corgikbd_device = {
270         .name           = "corgi-keyboard",
271         .id             = -1,
272 };
273
274 /*
275  * Corgi LEDs
276  */
277 static struct gpio_led corgi_gpio_leds[] = {
278         {
279                 .name                   = "corgi:amber:charge",
280                 .default_trigger        = "sharpsl-charge",
281                 .gpio                   = CORGI_GPIO_LED_ORANGE,
282         },
283         {
284                 .name                   = "corgi:green:mail",
285                 .default_trigger        = "nand-disk",
286                 .gpio                   = CORGI_GPIO_LED_GREEN,
287         },
288 };
289
290 static struct gpio_led_platform_data corgi_gpio_leds_info = {
291         .leds           = corgi_gpio_leds,
292         .num_leds       = ARRAY_SIZE(corgi_gpio_leds),
293 };
294
295 static struct platform_device corgiled_device = {
296         .name           = "leds-gpio",
297         .id             = -1,
298         .dev            = {
299                 .platform_data = &corgi_gpio_leds_info,
300         },
301 };
302
303 /*
304  * MMC/SD Device
305  *
306  * The card detect interrupt isn't debounced so we delay it by 250ms
307  * to give the card a chance to fully insert/eject.
308  */
309 static struct pxamci_platform_data corgi_mci_platform_data;
310
311 static int corgi_mci_init(struct device *dev, irq_handler_t corgi_detect_int, void *data)
312 {
313         int err;
314
315         err = gpio_request(CORGI_GPIO_nSD_DETECT, "nSD_DETECT");
316         if (err)
317                 goto err_out;
318
319         err = gpio_request(CORGI_GPIO_nSD_WP, "nSD_WP");
320         if (err)
321                 goto err_free_1;
322
323         err = gpio_request(CORGI_GPIO_SD_PWR, "SD_PWR");
324         if (err)
325                 goto err_free_2;
326
327         gpio_direction_input(CORGI_GPIO_nSD_DETECT);
328         gpio_direction_input(CORGI_GPIO_nSD_WP);
329         gpio_direction_output(CORGI_GPIO_SD_PWR, 0);
330
331         corgi_mci_platform_data.detect_delay = msecs_to_jiffies(250);
332
333         err = request_irq(CORGI_IRQ_GPIO_nSD_DETECT, corgi_detect_int,
334                                 IRQF_DISABLED | IRQF_TRIGGER_RISING |
335                                 IRQF_TRIGGER_FALLING,
336                                 "MMC card detect", data);
337         if (err) {
338                 pr_err("%s: MMC/SD: can't request MMC card detect IRQ\n",
339                                 __func__);
340                 goto err_free_3;
341         }
342         return 0;
343
344 err_free_3:
345         gpio_free(CORGI_GPIO_SD_PWR);
346 err_free_2:
347         gpio_free(CORGI_GPIO_nSD_WP);
348 err_free_1:
349         gpio_free(CORGI_GPIO_nSD_DETECT);
350 err_out:
351         return err;
352 }
353
354 static void corgi_mci_setpower(struct device *dev, unsigned int vdd)
355 {
356         struct pxamci_platform_data* p_d = dev->platform_data;
357
358         gpio_set_value(CORGI_GPIO_SD_PWR, ((1 << vdd) & p_d->ocr_mask));
359 }
360
361 static int corgi_mci_get_ro(struct device *dev)
362 {
363         return gpio_get_value(CORGI_GPIO_nSD_WP);
364 }
365
366 static void corgi_mci_exit(struct device *dev, void *data)
367 {
368         free_irq(CORGI_IRQ_GPIO_nSD_DETECT, data);
369         gpio_free(CORGI_GPIO_SD_PWR);
370         gpio_free(CORGI_GPIO_nSD_WP);
371         gpio_free(CORGI_GPIO_nSD_DETECT);
372 }
373
374 static struct pxamci_platform_data corgi_mci_platform_data = {
375         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
376         .init           = corgi_mci_init,
377         .get_ro         = corgi_mci_get_ro,
378         .setpower       = corgi_mci_setpower,
379         .exit           = corgi_mci_exit,
380 };
381
382
383 /*
384  * Irda
385  */
386 static void corgi_irda_transceiver_mode(struct device *dev, int mode)
387 {
388         gpio_set_value(CORGI_GPIO_IR_ON, mode & IR_OFF);
389         pxa2xx_transceiver_mode(dev, mode);
390 }
391
392 static int corgi_irda_startup(struct device *dev)
393 {
394         int err;
395
396         err = gpio_request(CORGI_GPIO_IR_ON, "IR_ON");
397         if (err)
398                 return err;
399
400         gpio_direction_output(CORGI_GPIO_IR_ON, 1);
401         return 0;
402 }
403
404 static void corgi_irda_shutdown(struct device *dev)
405 {
406         gpio_free(CORGI_GPIO_IR_ON);
407 }
408
409 static struct pxaficp_platform_data corgi_ficp_platform_data = {
410         .transceiver_cap        = IR_SIRMODE | IR_OFF,
411         .transceiver_mode       = corgi_irda_transceiver_mode,
412         .startup                = corgi_irda_startup,
413         .shutdown               = corgi_irda_shutdown,
414 };
415
416
417 /*
418  * USB Device Controller
419  */
420 static struct pxa2xx_udc_mach_info udc_info __initdata = {
421         /* no connect GPIO; corgi can't tell connection status */
422         .gpio_pullup            = CORGI_GPIO_USB_PULLUP,
423 };
424
425 #if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MASTER)
426 static struct pxa2xx_spi_master corgi_spi_info = {
427         .num_chipselect = 3,
428 };
429
430 static struct ads7846_platform_data corgi_ads7846_info = {
431         .model                  = 7846,
432         .vref_delay_usecs       = 100,
433         .x_plate_ohms           = 419,
434         .y_plate_ohms           = 486,
435         .gpio_pendown           = CORGI_GPIO_TP_INT,
436 };
437
438 static void corgi_ads7846_cs(u32 command)
439 {
440         gpio_set_value(CORGI_GPIO_ADS7846_CS, !(command == PXA2XX_CS_ASSERT));
441 }
442
443 static struct pxa2xx_spi_chip corgi_ads7846_chip = {
444         .cs_control     = corgi_ads7846_cs,
445 };
446
447 static void corgi_bl_kick_battery(void)
448 {
449         void (*kick_batt)(void);
450
451         kick_batt = symbol_get(sharpsl_battery_kick);
452         if (kick_batt) {
453                 kick_batt();
454                 symbol_put(sharpsl_battery_kick);
455         }
456 }
457
458 static struct corgi_lcd_platform_data corgi_lcdcon_info = {
459         .init_mode              = CORGI_LCD_MODE_VGA,
460         .max_intensity          = 0x2f,
461         .default_intensity      = 0x1f,
462         .limit_mask             = 0x0b,
463         .gpio_backlight_cont    = CORGI_GPIO_BACKLIGHT_CONT,
464         .gpio_backlight_on      = -1,
465         .kick_battery           = corgi_bl_kick_battery,
466 };
467
468 static void corgi_lcdcon_cs(u32 command)
469 {
470         gpio_set_value(CORGI_GPIO_LCDCON_CS, !(command == PXA2XX_CS_ASSERT));
471 }
472
473 static struct pxa2xx_spi_chip corgi_lcdcon_chip = {
474         .cs_control     = corgi_lcdcon_cs,
475 };
476
477 static void corgi_max1111_cs(u32 command)
478 {
479         gpio_set_value(CORGI_GPIO_MAX1111_CS, !(command == PXA2XX_CS_ASSERT));
480 }
481
482 static struct pxa2xx_spi_chip corgi_max1111_chip = {
483         .cs_control     = corgi_max1111_cs,
484 };
485
486 static struct spi_board_info corgi_spi_devices[] = {
487         {
488                 .modalias       = "ads7846",
489                 .max_speed_hz   = 1200000,
490                 .bus_num        = 1,
491                 .chip_select    = 0,
492                 .platform_data  = &corgi_ads7846_info,
493                 .controller_data= &corgi_ads7846_chip,
494                 .irq            = gpio_to_irq(CORGI_GPIO_TP_INT),
495         }, {
496                 .modalias       = "corgi-lcd",
497                 .max_speed_hz   = 50000,
498                 .bus_num        = 1,
499                 .chip_select    = 1,
500                 .platform_data  = &corgi_lcdcon_info,
501                 .controller_data= &corgi_lcdcon_chip,
502         }, {
503                 .modalias       = "max1111",
504                 .max_speed_hz   = 450000,
505                 .bus_num        = 1,
506                 .chip_select    = 2,
507                 .controller_data= &corgi_max1111_chip,
508         },
509 };
510
511 static void __init corgi_init_spi(void)
512 {
513         int err;
514
515         err = gpio_request(CORGI_GPIO_ADS7846_CS, "ADS7846_CS");
516         if (err)
517                 return;
518
519         err = gpio_request(CORGI_GPIO_LCDCON_CS, "LCDCON_CS");
520         if (err)
521                 goto err_free_1;
522
523         err = gpio_request(CORGI_GPIO_MAX1111_CS, "MAX1111_CS");
524         if (err)
525                 goto err_free_2;
526
527         gpio_direction_output(CORGI_GPIO_ADS7846_CS, 1);
528         gpio_direction_output(CORGI_GPIO_LCDCON_CS, 1);
529         gpio_direction_output(CORGI_GPIO_MAX1111_CS, 1);
530
531         pxa2xx_set_spi_info(1, &corgi_spi_info);
532         spi_register_board_info(ARRAY_AND_SIZE(corgi_spi_devices));
533         return;
534
535 err_free_2:
536         gpio_free(CORGI_GPIO_LCDCON_CS);
537 err_free_1:
538         gpio_free(CORGI_GPIO_ADS7846_CS);
539 }
540 #else
541 static inline void corgi_init_spi(void) {}
542 #endif
543
544 static struct platform_device *devices[] __initdata = {
545         &corgiscoop_device,
546         &corgifb_device,
547         &corgikbd_device,
548         &corgiled_device,
549 };
550
551 static void corgi_poweroff(void)
552 {
553         if (!machine_is_corgi())
554                 /* Green LED off tells the bootloader to halt */
555                 gpio_set_value(CORGI_GPIO_LED_GREEN, 0);
556
557         arm_machine_restart('h');
558 }
559
560 static void corgi_restart(char mode)
561 {
562         if (!machine_is_corgi())
563                 /* Green LED on tells the bootloader to reboot */
564                 gpio_set_value(CORGI_GPIO_LED_GREEN, 1);
565
566         arm_machine_restart('h');
567 }
568
569 static void __init corgi_init(void)
570 {
571         pm_power_off = corgi_poweroff;
572         arm_pm_restart = corgi_restart;
573
574         /* Stop 3.6MHz and drive HIGH to PCMCIA and CS */
575         PCFR |= PCFR_OPDE;
576
577         pxa2xx_mfp_config(ARRAY_AND_SIZE(corgi_pin_config));
578
579         corgi_init_spi();
580
581         pxa_set_udc_info(&udc_info);
582         pxa_set_mci_info(&corgi_mci_platform_data);
583         pxa_set_ficp_info(&corgi_ficp_platform_data);
584         pxa_set_i2c_info(NULL);
585
586         platform_scoop_config = &corgi_pcmcia_config;
587
588         platform_add_devices(devices, ARRAY_SIZE(devices));
589 }
590
591 static void __init fixup_corgi(struct machine_desc *desc,
592                 struct tag *tags, char **cmdline, struct meminfo *mi)
593 {
594         sharpsl_save_param();
595         mi->nr_banks=1;
596         mi->bank[0].start = 0xa0000000;
597         mi->bank[0].node = 0;
598         if (machine_is_corgi())
599                 mi->bank[0].size = (32*1024*1024);
600         else
601                 mi->bank[0].size = (64*1024*1024);
602 }
603
604 #ifdef CONFIG_MACH_CORGI
605 MACHINE_START(CORGI, "SHARP Corgi")
606         .phys_io        = 0x40000000,
607         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
608         .fixup          = fixup_corgi,
609         .map_io         = pxa_map_io,
610         .init_irq       = pxa25x_init_irq,
611         .init_machine   = corgi_init,
612         .timer          = &pxa_timer,
613 MACHINE_END
614 #endif
615
616 #ifdef CONFIG_MACH_SHEPHERD
617 MACHINE_START(SHEPHERD, "SHARP Shepherd")
618         .phys_io        = 0x40000000,
619         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
620         .fixup          = fixup_corgi,
621         .map_io         = pxa_map_io,
622         .init_irq       = pxa25x_init_irq,
623         .init_machine   = corgi_init,
624         .timer          = &pxa_timer,
625 MACHINE_END
626 #endif
627
628 #ifdef CONFIG_MACH_HUSKY
629 MACHINE_START(HUSKY, "SHARP Husky")
630         .phys_io        = 0x40000000,
631         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
632         .fixup          = fixup_corgi,
633         .map_io         = pxa_map_io,
634         .init_irq       = pxa25x_init_irq,
635         .init_machine   = corgi_init,
636         .timer          = &pxa_timer,
637 MACHINE_END
638 #endif
639