da1e601907061cf00bb442ec45aa85d44a9df47b
[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 /*
276  * Corgi LEDs
277  */
278 static struct platform_device corgiled_device = {
279         .name           = "corgi-led",
280         .id             = -1,
281 };
282
283 /*
284  * MMC/SD Device
285  *
286  * The card detect interrupt isn't debounced so we delay it by 250ms
287  * to give the card a chance to fully insert/eject.
288  */
289 static struct pxamci_platform_data corgi_mci_platform_data;
290
291 static int corgi_mci_init(struct device *dev, irq_handler_t corgi_detect_int, void *data)
292 {
293         int err;
294
295         err = gpio_request(CORGI_GPIO_nSD_DETECT, "nSD_DETECT");
296         if (err)
297                 goto err_out;
298
299         err = gpio_request(CORGI_GPIO_nSD_WP, "nSD_WP");
300         if (err)
301                 goto err_free_1;
302
303         err = gpio_request(CORGI_GPIO_SD_PWR, "SD_PWR");
304         if (err)
305                 goto err_free_2;
306
307         gpio_direction_input(CORGI_GPIO_nSD_DETECT);
308         gpio_direction_input(CORGI_GPIO_nSD_WP);
309         gpio_direction_output(CORGI_GPIO_SD_PWR, 0);
310
311         corgi_mci_platform_data.detect_delay = msecs_to_jiffies(250);
312
313         err = request_irq(CORGI_IRQ_GPIO_nSD_DETECT, corgi_detect_int,
314                                 IRQF_DISABLED | IRQF_TRIGGER_RISING |
315                                 IRQF_TRIGGER_FALLING,
316                                 "MMC card detect", data);
317         if (err) {
318                 pr_err("%s: MMC/SD: can't request MMC card detect IRQ\n",
319                                 __func__);
320                 goto err_free_3;
321         }
322         return 0;
323
324 err_free_3:
325         gpio_free(CORGI_GPIO_SD_PWR);
326 err_free_2:
327         gpio_free(CORGI_GPIO_nSD_WP);
328 err_free_1:
329         gpio_free(CORGI_GPIO_nSD_DETECT);
330 err_out:
331         return err;
332 }
333
334 static void corgi_mci_setpower(struct device *dev, unsigned int vdd)
335 {
336         struct pxamci_platform_data* p_d = dev->platform_data;
337
338         gpio_set_value(CORGI_GPIO_SD_PWR, ((1 << vdd) & p_d->ocr_mask));
339 }
340
341 static int corgi_mci_get_ro(struct device *dev)
342 {
343         return gpio_get_value(CORGI_GPIO_nSD_WP);
344 }
345
346 static void corgi_mci_exit(struct device *dev, void *data)
347 {
348         free_irq(CORGI_IRQ_GPIO_nSD_DETECT, data);
349         gpio_free(CORGI_GPIO_SD_PWR);
350         gpio_free(CORGI_GPIO_nSD_WP);
351         gpio_free(CORGI_GPIO_nSD_DETECT);
352 }
353
354 static struct pxamci_platform_data corgi_mci_platform_data = {
355         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
356         .init           = corgi_mci_init,
357         .get_ro         = corgi_mci_get_ro,
358         .setpower       = corgi_mci_setpower,
359         .exit           = corgi_mci_exit,
360 };
361
362
363 /*
364  * Irda
365  */
366 static void corgi_irda_transceiver_mode(struct device *dev, int mode)
367 {
368         gpio_set_value(CORGI_GPIO_IR_ON, mode & IR_OFF);
369         pxa2xx_transceiver_mode(dev, mode);
370 }
371
372 static int corgi_irda_startup(struct device *dev)
373 {
374         int err;
375
376         err = gpio_request(CORGI_GPIO_IR_ON, "IR_ON");
377         if (err)
378                 return err;
379
380         gpio_direction_output(CORGI_GPIO_IR_ON, 1);
381         return 0;
382 }
383
384 static void corgi_irda_shutdown(struct device *dev)
385 {
386         gpio_free(CORGI_GPIO_IR_ON);
387 }
388
389 static struct pxaficp_platform_data corgi_ficp_platform_data = {
390         .transceiver_cap        = IR_SIRMODE | IR_OFF,
391         .transceiver_mode       = corgi_irda_transceiver_mode,
392         .startup                = corgi_irda_startup,
393         .shutdown               = corgi_irda_shutdown,
394 };
395
396
397 /*
398  * USB Device Controller
399  */
400 static struct pxa2xx_udc_mach_info udc_info __initdata = {
401         /* no connect GPIO; corgi can't tell connection status */
402         .gpio_pullup            = CORGI_GPIO_USB_PULLUP,
403 };
404
405 #if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MASTER)
406 static struct pxa2xx_spi_master corgi_spi_info = {
407         .num_chipselect = 3,
408 };
409
410 static struct ads7846_platform_data corgi_ads7846_info = {
411         .model                  = 7846,
412         .vref_delay_usecs       = 100,
413         .x_plate_ohms           = 419,
414         .y_plate_ohms           = 486,
415         .gpio_pendown           = CORGI_GPIO_TP_INT,
416 };
417
418 static void corgi_ads7846_cs(u32 command)
419 {
420         gpio_set_value(CORGI_GPIO_ADS7846_CS, !(command == PXA2XX_CS_ASSERT));
421 }
422
423 static struct pxa2xx_spi_chip corgi_ads7846_chip = {
424         .cs_control     = corgi_ads7846_cs,
425 };
426
427 static void corgi_notify_intensity(int intensity)
428 {
429         /* Bit 5 is via SCOOP */
430         gpio_set_value(CORGI_GPIO_BACKLIGHT_CONT, !!(intensity & 0x0020));
431 }
432
433 static void corgi_bl_kick_battery(void)
434 {
435         void (*kick_batt)(void);
436
437         kick_batt = symbol_get(sharpsl_battery_kick);
438         if (kick_batt) {
439                 kick_batt();
440                 symbol_put(sharpsl_battery_kick);
441         }
442 }
443
444 static struct corgi_lcd_platform_data corgi_lcdcon_info = {
445         .init_mode              = CORGI_LCD_MODE_VGA,
446         .max_intensity          = 0x2f,
447         .default_intensity      = 0x1f,
448         .limit_mask             = 0x0b,
449         .notify                 = corgi_notify_intensity,
450         .kick_battery           = corgi_bl_kick_battery,
451 };
452
453 static void corgi_lcdcon_cs(u32 command)
454 {
455         gpio_set_value(CORGI_GPIO_LCDCON_CS, !(command == PXA2XX_CS_ASSERT));
456 }
457
458 static struct pxa2xx_spi_chip corgi_lcdcon_chip = {
459         .cs_control     = corgi_lcdcon_cs,
460 };
461
462 static void corgi_max1111_cs(u32 command)
463 {
464         gpio_set_value(CORGI_GPIO_MAX1111_CS, !(command == PXA2XX_CS_ASSERT));
465 }
466
467 static struct pxa2xx_spi_chip corgi_max1111_chip = {
468         .cs_control     = corgi_max1111_cs,
469 };
470
471 static struct spi_board_info corgi_spi_devices[] = {
472         {
473                 .modalias       = "ads7846",
474                 .max_speed_hz   = 1200000,
475                 .bus_num        = 1,
476                 .chip_select    = 0,
477                 .platform_data  = &corgi_ads7846_info,
478                 .controller_data= &corgi_ads7846_chip,
479                 .irq            = gpio_to_irq(CORGI_GPIO_TP_INT),
480         }, {
481                 .modalias       = "corgi-lcd",
482                 .max_speed_hz   = 50000,
483                 .bus_num        = 1,
484                 .chip_select    = 1,
485                 .platform_data  = &corgi_lcdcon_info,
486                 .controller_data= &corgi_lcdcon_chip,
487         }, {
488                 .modalias       = "max1111",
489                 .max_speed_hz   = 450000,
490                 .bus_num        = 1,
491                 .chip_select    = 2,
492                 .controller_data= &corgi_max1111_chip,
493         },
494 };
495
496 static void __init corgi_init_spi(void)
497 {
498         int err;
499
500         err = gpio_request(CORGI_GPIO_ADS7846_CS, "ADS7846_CS");
501         if (err)
502                 return;
503
504         err = gpio_request(CORGI_GPIO_LCDCON_CS, "LCDCON_CS");
505         if (err)
506                 goto err_free_1;
507
508         err = gpio_request(CORGI_GPIO_MAX1111_CS, "MAX1111_CS");
509         if (err)
510                 goto err_free_2;
511
512         gpio_direction_output(CORGI_GPIO_ADS7846_CS, 1);
513         gpio_direction_output(CORGI_GPIO_LCDCON_CS, 1);
514         gpio_direction_output(CORGI_GPIO_MAX1111_CS, 1);
515
516         pxa2xx_set_spi_info(1, &corgi_spi_info);
517         spi_register_board_info(ARRAY_AND_SIZE(corgi_spi_devices));
518         return;
519
520 err_free_2:
521         gpio_free(CORGI_GPIO_LCDCON_CS);
522 err_free_1:
523         gpio_free(CORGI_GPIO_ADS7846_CS);
524 }
525 #else
526 static inline void corgi_init_spi(void) {}
527 #endif
528
529 static struct platform_device *devices[] __initdata = {
530         &corgiscoop_device,
531         &corgifb_device,
532         &corgikbd_device,
533         &corgiled_device,
534 };
535
536 static void corgi_poweroff(void)
537 {
538         if (!machine_is_corgi())
539                 /* Green LED off tells the bootloader to halt */
540                 gpio_set_value(CORGI_GPIO_LED_GREEN, 0);
541
542         arm_machine_restart('h');
543 }
544
545 static void corgi_restart(char mode)
546 {
547         if (!machine_is_corgi())
548                 /* Green LED on tells the bootloader to reboot */
549                 gpio_set_value(CORGI_GPIO_LED_GREEN, 1);
550
551         arm_machine_restart('h');
552 }
553
554 static void __init corgi_init(void)
555 {
556         pm_power_off = corgi_poweroff;
557         arm_pm_restart = corgi_restart;
558
559         /* Stop 3.6MHz and drive HIGH to PCMCIA and CS */
560         PCFR |= PCFR_OPDE;
561
562         pxa2xx_mfp_config(ARRAY_AND_SIZE(corgi_pin_config));
563
564         corgi_init_spi();
565
566         pxa_set_udc_info(&udc_info);
567         pxa_set_mci_info(&corgi_mci_platform_data);
568         pxa_set_ficp_info(&corgi_ficp_platform_data);
569         pxa_set_i2c_info(NULL);
570
571         platform_scoop_config = &corgi_pcmcia_config;
572
573         platform_add_devices(devices, ARRAY_SIZE(devices));
574 }
575
576 static void __init fixup_corgi(struct machine_desc *desc,
577                 struct tag *tags, char **cmdline, struct meminfo *mi)
578 {
579         sharpsl_save_param();
580         mi->nr_banks=1;
581         mi->bank[0].start = 0xa0000000;
582         mi->bank[0].node = 0;
583         if (machine_is_corgi())
584                 mi->bank[0].size = (32*1024*1024);
585         else
586                 mi->bank[0].size = (64*1024*1024);
587 }
588
589 #ifdef CONFIG_MACH_CORGI
590 MACHINE_START(CORGI, "SHARP Corgi")
591         .phys_io        = 0x40000000,
592         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
593         .fixup          = fixup_corgi,
594         .map_io         = pxa_map_io,
595         .init_irq       = pxa25x_init_irq,
596         .init_machine   = corgi_init,
597         .timer          = &pxa_timer,
598 MACHINE_END
599 #endif
600
601 #ifdef CONFIG_MACH_SHEPHERD
602 MACHINE_START(SHEPHERD, "SHARP Shepherd")
603         .phys_io        = 0x40000000,
604         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
605         .fixup          = fixup_corgi,
606         .map_io         = pxa_map_io,
607         .init_irq       = pxa25x_init_irq,
608         .init_machine   = corgi_init,
609         .timer          = &pxa_timer,
610 MACHINE_END
611 #endif
612
613 #ifdef CONFIG_MACH_HUSKY
614 MACHINE_START(HUSKY, "SHARP Husky")
615         .phys_io        = 0x40000000,
616         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
617         .fixup          = fixup_corgi,
618         .map_io         = pxa_map_io,
619         .init_irq       = pxa25x_init_irq,
620         .init_machine   = corgi_init,
621         .timer          = &pxa_timer,
622 MACHINE_END
623 #endif
624