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