911452dd0b45dc9e60b37574de4738402f0ff15b
[linux-2.6.git] / arch / arm / mach-pxa / spitz.c
1 /*
2  * Support for Sharp SL-Cxx00 Series of PDAs
3  * Models: SL-C3000 (Spitz), SL-C1000 (Akita) and SL-C3100 (Borzoi)
4  *
5  * Copyright (c) 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/delay.h>
19 #include <linux/major.h>
20 #include <linux/fs.h>
21 #include <linux/interrupt.h>
22 #include <linux/mmc/host.h>
23 #include <linux/pm.h>
24
25 #include <asm/setup.h>
26 #include <asm/memory.h>
27 #include <asm/mach-types.h>
28 #include <asm/hardware.h>
29 #include <asm/irq.h>
30 #include <asm/io.h>
31 #include <asm/system.h>
32
33 #include <asm/mach/arch.h>
34 #include <asm/mach/map.h>
35 #include <asm/mach/irq.h>
36
37 #include <asm/arch/pxa-regs.h>
38 #include <asm/arch/irda.h>
39 #include <asm/arch/mmc.h>
40 #include <asm/arch/ohci.h>
41 #include <asm/arch/udc.h>
42 #include <asm/arch/pxafb.h>
43 #include <asm/arch/akita.h>
44 #include <asm/arch/spitz.h>
45 #include <asm/arch/sharpsl.h>
46
47 #include <asm/mach/sharpsl_param.h>
48 #include <asm/hardware/scoop.h>
49
50 #include "generic.h"
51 #include "sharpsl.h"
52
53 /*
54  * Spitz SCOOP Device #1
55  */
56 static struct resource spitz_scoop_resources[] = {
57         [0] = {
58                 .start          = 0x10800000,
59                 .end            = 0x10800fff,
60                 .flags          = IORESOURCE_MEM,
61         },
62 };
63
64 static struct scoop_config spitz_scoop_setup = {
65         .io_dir         = SPITZ_SCP_IO_DIR,
66         .io_out         = SPITZ_SCP_IO_OUT,
67         .suspend_clr = SPITZ_SCP_SUS_CLR,
68         .suspend_set = SPITZ_SCP_SUS_SET,
69 };
70
71 struct platform_device spitzscoop_device = {
72         .name           = "sharp-scoop",
73         .id             = 0,
74         .dev            = {
75                 .platform_data  = &spitz_scoop_setup,
76         },
77         .num_resources  = ARRAY_SIZE(spitz_scoop_resources),
78         .resource       = spitz_scoop_resources,
79 };
80
81 /*
82  * Spitz SCOOP Device #2
83  */
84 static struct resource spitz_scoop2_resources[] = {
85         [0] = {
86                 .start          = 0x08800040,
87                 .end            = 0x08800fff,
88                 .flags          = IORESOURCE_MEM,
89         },
90 };
91
92 static struct scoop_config spitz_scoop2_setup = {
93         .io_dir         = SPITZ_SCP2_IO_DIR,
94         .io_out         = SPITZ_SCP2_IO_OUT,
95         .suspend_clr = SPITZ_SCP2_SUS_CLR,
96         .suspend_set = SPITZ_SCP2_SUS_SET,
97 };
98
99 struct platform_device spitzscoop2_device = {
100         .name           = "sharp-scoop",
101         .id             = 1,
102         .dev            = {
103                 .platform_data  = &spitz_scoop2_setup,
104         },
105         .num_resources  = ARRAY_SIZE(spitz_scoop2_resources),
106         .resource       = spitz_scoop2_resources,
107 };
108
109 #define SPITZ_PWR_SD 0x01
110 #define SPITZ_PWR_CF 0x02
111
112 /* Power control is shared with between one of the CF slots and SD */
113 static void spitz_card_pwr_ctrl(int device, unsigned short new_cpr)
114 {
115         unsigned short cpr = read_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR);
116
117         if (new_cpr & 0x0007) {
118                 set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_CF_POWER);
119                 if (!(cpr & 0x0002) && !(cpr & 0x0004))
120                         mdelay(5);
121                 if (device == SPITZ_PWR_CF)
122                         cpr |= 0x0002;
123                 if (device == SPITZ_PWR_SD)
124                         cpr |= 0x0004;
125                 write_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR, cpr | new_cpr);
126         } else {
127                 if (device == SPITZ_PWR_CF)
128                         cpr &= ~0x0002;
129                 if (device == SPITZ_PWR_SD)
130                         cpr &= ~0x0004;
131                 if (!(cpr & 0x0002) && !(cpr & 0x0004)) {
132                         write_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR, 0x0000);
133                         mdelay(1);
134                         reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_CF_POWER);
135                 } else {
136                         write_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR, cpr | new_cpr);
137                 }
138         }
139 }
140
141 static void spitz_pcmcia_init(void)
142 {
143         /* Setup default state of GPIO outputs
144            before we enable them as outputs. */
145         GPSR(GPIO48_nPOE) = GPIO_bit(GPIO48_nPOE) |
146                 GPIO_bit(GPIO49_nPWE) | GPIO_bit(GPIO50_nPIOR) |
147                 GPIO_bit(GPIO51_nPIOW) | GPIO_bit(GPIO54_nPCE_2);
148         GPSR(GPIO85_nPCE_1) = GPIO_bit(GPIO85_nPCE_1);
149
150         pxa_gpio_mode(GPIO48_nPOE_MD);
151         pxa_gpio_mode(GPIO49_nPWE_MD);
152         pxa_gpio_mode(GPIO50_nPIOR_MD);
153         pxa_gpio_mode(GPIO51_nPIOW_MD);
154         pxa_gpio_mode(GPIO55_nPREG_MD);
155         pxa_gpio_mode(GPIO56_nPWAIT_MD);
156         pxa_gpio_mode(GPIO57_nIOIS16_MD);
157         pxa_gpio_mode(GPIO85_nPCE_1_MD);
158         pxa_gpio_mode(GPIO54_nPCE_2_MD);
159         pxa_gpio_mode(GPIO104_pSKTSEL_MD);
160 }
161
162 static void spitz_pcmcia_pwr(struct device *scoop, unsigned short cpr, int nr)
163 {
164         /* Only need to override behaviour for slot 0 */
165         if (nr == 0)
166                 spitz_card_pwr_ctrl(SPITZ_PWR_CF, cpr);
167         else
168                 write_scoop_reg(scoop, SCOOP_CPR, cpr);
169 }
170
171 static struct scoop_pcmcia_dev spitz_pcmcia_scoop[] = {
172 {
173         .dev        = &spitzscoop_device.dev,
174         .irq        = SPITZ_IRQ_GPIO_CF_IRQ,
175         .cd_irq     = SPITZ_IRQ_GPIO_CF_CD,
176         .cd_irq_str = "PCMCIA0 CD",
177 },{
178         .dev        = &spitzscoop2_device.dev,
179         .irq        = SPITZ_IRQ_GPIO_CF2_IRQ,
180         .cd_irq     = -1,
181 },
182 };
183
184 static struct scoop_pcmcia_config spitz_pcmcia_config = {
185         .devs         = &spitz_pcmcia_scoop[0],
186         .num_devs     = 2,
187         .pcmcia_init  = spitz_pcmcia_init,
188         .power_ctrl   = spitz_pcmcia_pwr,
189 };
190
191 EXPORT_SYMBOL(spitzscoop_device);
192 EXPORT_SYMBOL(spitzscoop2_device);
193
194
195 /*
196  * Spitz SSP Device
197  *
198  * Set the parent as the scoop device because a lot of SSP devices
199  * also use scoop functions and this makes the power up/down order
200  * work correctly.
201  */
202 struct platform_device spitzssp_device = {
203         .name           = "corgi-ssp",
204         .dev            = {
205                 .parent = &spitzscoop_device.dev,
206         },
207         .id             = -1,
208 };
209
210 struct corgissp_machinfo spitz_ssp_machinfo = {
211         .port           = 2,
212         .cs_lcdcon      = SPITZ_GPIO_LCDCON_CS,
213         .cs_ads7846     = SPITZ_GPIO_ADS7846_CS,
214         .cs_max1111     = SPITZ_GPIO_MAX1111_CS,
215         .clk_lcdcon     = 520,
216         .clk_ads7846    = 14,
217         .clk_max1111    = 56,
218 };
219
220
221 /*
222  * Spitz Backlight Device
223  */
224 static struct corgibl_machinfo spitz_bl_machinfo = {
225         .default_intensity = 0x1f,
226         .limit_mask = 0x0b,
227         .max_intensity = 0x2f,
228 };
229
230 static struct platform_device spitzbl_device = {
231         .name           = "corgi-bl",
232         .dev            = {
233                 .platform_data  = &spitz_bl_machinfo,
234         },
235         .id             = -1,
236 };
237
238
239 /*
240  * Spitz Keyboard Device
241  */
242 static struct platform_device spitzkbd_device = {
243         .name           = "spitz-keyboard",
244         .id             = -1,
245 };
246
247
248 /*
249  * Spitz LEDs
250  */
251 static struct platform_device spitzled_device = {
252         .name           = "spitz-led",
253         .id             = -1,
254 };
255
256 /*
257  * Spitz Touch Screen Device
258  */
259 static struct resource spitzts_resources[] = {
260         [0] = {
261                 .start          = SPITZ_IRQ_GPIO_TP_INT,
262                 .end            = SPITZ_IRQ_GPIO_TP_INT,
263                 .flags          = IORESOURCE_IRQ,
264         },
265 };
266
267 static struct corgits_machinfo  spitz_ts_machinfo = {
268         .get_hsync_len   = spitz_get_hsync_len,
269         .put_hsync       = spitz_put_hsync,
270         .wait_hsync      = spitz_wait_hsync,
271 };
272
273 static struct platform_device spitzts_device = {
274         .name           = "corgi-ts",
275         .dev            = {
276                 .parent = &spitzssp_device.dev,
277                 .platform_data  = &spitz_ts_machinfo,
278         },
279         .id             = -1,
280         .num_resources  = ARRAY_SIZE(spitzts_resources),
281         .resource       = spitzts_resources,
282 };
283
284
285 /*
286  * MMC/SD Device
287  *
288  * The card detect interrupt isn't debounced so we delay it by 250ms
289  * to give the card a chance to fully insert/eject.
290  */
291
292 static struct pxamci_platform_data spitz_mci_platform_data;
293
294 static int spitz_mci_init(struct device *dev, irqreturn_t (*spitz_detect_int)(int, void *), void *data)
295 {
296         int err;
297
298         /* setup GPIO for PXA27x MMC controller */
299         pxa_gpio_mode(GPIO32_MMCCLK_MD);
300         pxa_gpio_mode(GPIO112_MMCCMD_MD);
301         pxa_gpio_mode(GPIO92_MMCDAT0_MD);
302         pxa_gpio_mode(GPIO109_MMCDAT1_MD);
303         pxa_gpio_mode(GPIO110_MMCDAT2_MD);
304         pxa_gpio_mode(GPIO111_MMCDAT3_MD);
305         pxa_gpio_mode(SPITZ_GPIO_nSD_DETECT | GPIO_IN);
306         pxa_gpio_mode(SPITZ_GPIO_nSD_WP | GPIO_IN);
307
308         spitz_mci_platform_data.detect_delay = msecs_to_jiffies(250);
309
310         err = request_irq(SPITZ_IRQ_GPIO_nSD_DETECT, spitz_detect_int,
311                           IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
312                           "MMC card detect", data);
313         if (err) {
314                 printk(KERN_ERR "spitz_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
315                 return -1;
316         }
317
318         return 0;
319 }
320
321 static void spitz_mci_setpower(struct device *dev, unsigned int vdd)
322 {
323         struct pxamci_platform_data* p_d = dev->platform_data;
324
325         if (( 1 << vdd) & p_d->ocr_mask)
326                 spitz_card_pwr_ctrl(SPITZ_PWR_SD, 0x0004);
327         else
328                 spitz_card_pwr_ctrl(SPITZ_PWR_SD, 0x0000);
329 }
330
331 static int spitz_mci_get_ro(struct device *dev)
332 {
333         return GPLR(SPITZ_GPIO_nSD_WP) & GPIO_bit(SPITZ_GPIO_nSD_WP);
334 }
335
336 static void spitz_mci_exit(struct device *dev, void *data)
337 {
338         free_irq(SPITZ_IRQ_GPIO_nSD_DETECT, data);
339 }
340
341 static struct pxamci_platform_data spitz_mci_platform_data = {
342         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
343         .init           = spitz_mci_init,
344         .get_ro         = spitz_mci_get_ro,
345         .setpower       = spitz_mci_setpower,
346         .exit           = spitz_mci_exit,
347 };
348
349
350 /*
351  * USB Host (OHCI)
352  */
353 static int spitz_ohci_init(struct device *dev)
354 {
355         /* Only Port 2 is connected */
356         pxa_gpio_mode(SPITZ_GPIO_USB_CONNECT | GPIO_IN);
357         pxa_gpio_mode(SPITZ_GPIO_USB_HOST | GPIO_OUT);
358         pxa_gpio_mode(SPITZ_GPIO_USB_DEVICE | GPIO_IN);
359
360         /* Setup USB Port 2 Output Control Register */
361         UP2OCR = UP2OCR_HXS | UP2OCR_HXOE | UP2OCR_DPPDE | UP2OCR_DMPDE;
362
363         GPSR(SPITZ_GPIO_USB_HOST) = GPIO_bit(SPITZ_GPIO_USB_HOST);
364
365         UHCHR = (UHCHR) &
366                 ~(UHCHR_SSEP1 | UHCHR_SSEP2 | UHCHR_SSEP3 | UHCHR_SSE);
367
368         UHCRHDA |= UHCRHDA_NOCP;
369
370         return 0;
371 }
372
373 static struct pxaohci_platform_data spitz_ohci_platform_data = {
374         .port_mode      = PMM_NPS_MODE,
375         .init           = spitz_ohci_init,
376         .power_budget   = 150,
377 };
378
379
380 /*
381  * Irda
382  */
383 static void spitz_irda_transceiver_mode(struct device *dev, int mode)
384 {
385         if (mode & IR_OFF)
386                 set_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_IR_ON);
387         else
388                 reset_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_IR_ON);
389 }
390
391 #ifdef CONFIG_MACH_AKITA
392 static void akita_irda_transceiver_mode(struct device *dev, int mode)
393 {
394         if (mode & IR_OFF)
395                 akita_set_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_IR_ON);
396         else
397                 akita_reset_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_IR_ON);
398 }
399 #endif
400
401 static struct pxaficp_platform_data spitz_ficp_platform_data = {
402         .transceiver_cap  = IR_SIRMODE | IR_OFF,
403         .transceiver_mode = spitz_irda_transceiver_mode,
404 };
405
406
407 /*
408  * Spitz PXA Framebuffer
409  */
410
411 static struct pxafb_mode_info spitz_pxafb_modes[] = {
412 {
413         .pixclock       = 19231,
414         .xres           = 480,
415         .yres           = 640,
416         .bpp            = 16,
417         .hsync_len      = 40,
418         .left_margin    = 46,
419         .right_margin   = 125,
420         .vsync_len      = 3,
421         .upper_margin   = 1,
422         .lower_margin   = 0,
423         .sync           = 0,
424 },{
425         .pixclock       = 134617,
426         .xres           = 240,
427         .yres           = 320,
428         .bpp            = 16,
429         .hsync_len      = 20,
430         .left_margin    = 20,
431         .right_margin   = 46,
432         .vsync_len      = 2,
433         .upper_margin   = 1,
434         .lower_margin   = 0,
435         .sync           = 0,
436 },
437 };
438
439 static struct pxafb_mach_info spitz_pxafb_info = {
440         .modes          = &spitz_pxafb_modes[0],
441         .num_modes      = 2,
442         .fixed_modes    = 1,
443         .lccr0          = LCCR0_Color | LCCR0_Sngl | LCCR0_Act | LCCR0_LDDALT | LCCR0_OUC | LCCR0_CMDIM | LCCR0_RDSTM,
444         .lccr3          = LCCR3_PixRsEdg | LCCR3_OutEnH,
445         .pxafb_lcd_power = spitz_lcd_power,
446 };
447
448
449 static struct platform_device *devices[] __initdata = {
450         &spitzscoop_device,
451         &spitzssp_device,
452         &spitzkbd_device,
453         &spitzts_device,
454         &spitzbl_device,
455         &spitzled_device,
456 };
457
458 static void spitz_poweroff(void)
459 {
460         RCSR = RCSR_HWR | RCSR_WDR | RCSR_SMR | RCSR_GPR;
461
462         pxa_gpio_mode(SPITZ_GPIO_ON_RESET | GPIO_OUT);
463         GPSR(SPITZ_GPIO_ON_RESET) = GPIO_bit(SPITZ_GPIO_ON_RESET);
464
465         mdelay(1000);
466         arm_machine_restart('h');
467 }
468
469 static void spitz_restart(char mode)
470 {
471         /* Bootloader magic for a reboot */
472         if((MSC0 & 0xffff0000) == 0x7ff00000)
473                 MSC0 = (MSC0 & 0xffff) | 0x7ee00000;
474
475         spitz_poweroff();
476 }
477
478 static void __init common_init(void)
479 {
480         pm_power_off = spitz_poweroff;
481         arm_pm_restart = spitz_restart;
482
483         PMCR = 0x00;
484
485         /* setup sleep mode values */
486         PWER  = 0x00000002;
487         PFER  = 0x00000000;
488         PRER  = 0x00000002;
489         PGSR0 = 0x0158C000;
490         PGSR1 = 0x00FF0080;
491         PGSR2 = 0x0001C004;
492
493         /* Stop 3.6MHz and drive HIGH to PCMCIA and CS */
494         PCFR |= PCFR_OPDE;
495
496         corgi_ssp_set_machinfo(&spitz_ssp_machinfo);
497
498         pxa_gpio_mode(SPITZ_GPIO_HSYNC | GPIO_IN);
499
500         platform_add_devices(devices, ARRAY_SIZE(devices));
501         pxa_set_mci_info(&spitz_mci_platform_data);
502         pxa_set_ohci_info(&spitz_ohci_platform_data);
503         pxa_set_ficp_info(&spitz_ficp_platform_data);
504         set_pxa_fb_parent(&spitzssp_device.dev);
505         set_pxa_fb_info(&spitz_pxafb_info);
506 }
507
508 static void __init spitz_init(void)
509 {
510         platform_scoop_config = &spitz_pcmcia_config;
511
512         spitz_bl_machinfo.set_bl_intensity = spitz_bl_set_intensity;
513
514         common_init();
515
516         platform_device_register(&spitzscoop2_device);
517 }
518
519 #ifdef CONFIG_MACH_AKITA
520 /*
521  * Akita IO Expander
522  */
523 struct platform_device akitaioexp_device = {
524         .name           = "akita-ioexp",
525         .id             = -1,
526 };
527
528 EXPORT_SYMBOL_GPL(akitaioexp_device);
529
530 static void __init akita_init(void)
531 {
532         spitz_ficp_platform_data.transceiver_mode = akita_irda_transceiver_mode;
533
534         /* We just pretend the second element of the array doesn't exist */
535         spitz_pcmcia_config.num_devs = 1;
536         platform_scoop_config = &spitz_pcmcia_config;
537         spitz_bl_machinfo.set_bl_intensity = akita_bl_set_intensity;
538
539         platform_device_register(&akitaioexp_device);
540
541         spitzscoop_device.dev.parent = &akitaioexp_device.dev;
542         common_init();
543 }
544 #endif
545
546
547 static void __init fixup_spitz(struct machine_desc *desc,
548                 struct tag *tags, char **cmdline, struct meminfo *mi)
549 {
550         sharpsl_save_param();
551         mi->nr_banks = 1;
552         mi->bank[0].start = 0xa0000000;
553         mi->bank[0].node = 0;
554         mi->bank[0].size = (64*1024*1024);
555 }
556
557 #ifdef CONFIG_MACH_SPITZ
558 MACHINE_START(SPITZ, "SHARP Spitz")
559         .phys_io        = 0x40000000,
560         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
561         .fixup          = fixup_spitz,
562         .map_io         = pxa_map_io,
563         .init_irq       = pxa_init_irq,
564         .init_machine   = spitz_init,
565         .timer          = &pxa_timer,
566 MACHINE_END
567 #endif
568
569 #ifdef CONFIG_MACH_BORZOI
570 MACHINE_START(BORZOI, "SHARP Borzoi")
571         .phys_io        = 0x40000000,
572         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
573         .fixup          = fixup_spitz,
574         .map_io         = pxa_map_io,
575         .init_irq       = pxa_init_irq,
576         .init_machine   = spitz_init,
577         .timer          = &pxa_timer,
578 MACHINE_END
579 #endif
580
581 #ifdef CONFIG_MACH_AKITA
582 MACHINE_START(AKITA, "SHARP Akita")
583         .phys_io        = 0x40000000,
584         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
585         .fixup          = fixup_spitz,
586         .map_io         = pxa_map_io,
587         .init_irq       = pxa_init_irq,
588         .init_machine   = akita_init,
589         .timer          = &pxa_timer,
590 MACHINE_END
591 #endif