bae47e145de83e01eefaf1b6fd2b05a0265f6f7a
[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 "devices.h"
52 #include "sharpsl.h"
53
54 /*
55  * Spitz SCOOP Device #1
56  */
57 static struct resource spitz_scoop_resources[] = {
58         [0] = {
59                 .start          = 0x10800000,
60                 .end            = 0x10800fff,
61                 .flags          = IORESOURCE_MEM,
62         },
63 };
64
65 static struct scoop_config spitz_scoop_setup = {
66         .io_dir         = SPITZ_SCP_IO_DIR,
67         .io_out         = SPITZ_SCP_IO_OUT,
68         .suspend_clr = SPITZ_SCP_SUS_CLR,
69         .suspend_set = SPITZ_SCP_SUS_SET,
70 };
71
72 struct platform_device spitzscoop_device = {
73         .name           = "sharp-scoop",
74         .id             = 0,
75         .dev            = {
76                 .platform_data  = &spitz_scoop_setup,
77         },
78         .num_resources  = ARRAY_SIZE(spitz_scoop_resources),
79         .resource       = spitz_scoop_resources,
80 };
81
82 /*
83  * Spitz SCOOP Device #2
84  */
85 static struct resource spitz_scoop2_resources[] = {
86         [0] = {
87                 .start          = 0x08800040,
88                 .end            = 0x08800fff,
89                 .flags          = IORESOURCE_MEM,
90         },
91 };
92
93 static struct scoop_config spitz_scoop2_setup = {
94         .io_dir         = SPITZ_SCP2_IO_DIR,
95         .io_out         = SPITZ_SCP2_IO_OUT,
96         .suspend_clr = SPITZ_SCP2_SUS_CLR,
97         .suspend_set = SPITZ_SCP2_SUS_SET,
98 };
99
100 struct platform_device spitzscoop2_device = {
101         .name           = "sharp-scoop",
102         .id             = 1,
103         .dev            = {
104                 .platform_data  = &spitz_scoop2_setup,
105         },
106         .num_resources  = ARRAY_SIZE(spitz_scoop2_resources),
107         .resource       = spitz_scoop2_resources,
108 };
109
110 #define SPITZ_PWR_SD 0x01
111 #define SPITZ_PWR_CF 0x02
112
113 /* Power control is shared with between one of the CF slots and SD */
114 static void spitz_card_pwr_ctrl(int device, unsigned short new_cpr)
115 {
116         unsigned short cpr = read_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR);
117
118         if (new_cpr & 0x0007) {
119                 set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_CF_POWER);
120                 if (!(cpr & 0x0002) && !(cpr & 0x0004))
121                         mdelay(5);
122                 if (device == SPITZ_PWR_CF)
123                         cpr |= 0x0002;
124                 if (device == SPITZ_PWR_SD)
125                         cpr |= 0x0004;
126                 write_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR, cpr | new_cpr);
127         } else {
128                 if (device == SPITZ_PWR_CF)
129                         cpr &= ~0x0002;
130                 if (device == SPITZ_PWR_SD)
131                         cpr &= ~0x0004;
132                 if (!(cpr & 0x0002) && !(cpr & 0x0004)) {
133                         write_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR, 0x0000);
134                         mdelay(1);
135                         reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_CF_POWER);
136                 } else {
137                         write_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR, cpr | new_cpr);
138                 }
139         }
140 }
141
142 static void spitz_pcmcia_init(void)
143 {
144         /* Setup default state of GPIO outputs
145            before we enable them as outputs. */
146         GPSR(GPIO48_nPOE) = GPIO_bit(GPIO48_nPOE) |
147                 GPIO_bit(GPIO49_nPWE) | GPIO_bit(GPIO50_nPIOR) |
148                 GPIO_bit(GPIO51_nPIOW) | GPIO_bit(GPIO54_nPCE_2);
149         GPSR(GPIO85_nPCE_1) = GPIO_bit(GPIO85_nPCE_1);
150
151         pxa_gpio_mode(GPIO48_nPOE_MD);
152         pxa_gpio_mode(GPIO49_nPWE_MD);
153         pxa_gpio_mode(GPIO50_nPIOR_MD);
154         pxa_gpio_mode(GPIO51_nPIOW_MD);
155         pxa_gpio_mode(GPIO55_nPREG_MD);
156         pxa_gpio_mode(GPIO56_nPWAIT_MD);
157         pxa_gpio_mode(GPIO57_nIOIS16_MD);
158         pxa_gpio_mode(GPIO85_nPCE_1_MD);
159         pxa_gpio_mode(GPIO54_nPCE_2_MD);
160         pxa_gpio_mode(GPIO104_pSKTSEL_MD);
161 }
162
163 static void spitz_pcmcia_pwr(struct device *scoop, unsigned short cpr, int nr)
164 {
165         /* Only need to override behaviour for slot 0 */
166         if (nr == 0)
167                 spitz_card_pwr_ctrl(SPITZ_PWR_CF, cpr);
168         else
169                 write_scoop_reg(scoop, SCOOP_CPR, cpr);
170 }
171
172 static struct scoop_pcmcia_dev spitz_pcmcia_scoop[] = {
173 {
174         .dev        = &spitzscoop_device.dev,
175         .irq        = SPITZ_IRQ_GPIO_CF_IRQ,
176         .cd_irq     = SPITZ_IRQ_GPIO_CF_CD,
177         .cd_irq_str = "PCMCIA0 CD",
178 },{
179         .dev        = &spitzscoop2_device.dev,
180         .irq        = SPITZ_IRQ_GPIO_CF2_IRQ,
181         .cd_irq     = -1,
182 },
183 };
184
185 static struct scoop_pcmcia_config spitz_pcmcia_config = {
186         .devs         = &spitz_pcmcia_scoop[0],
187         .num_devs     = 2,
188         .pcmcia_init  = spitz_pcmcia_init,
189         .power_ctrl   = spitz_pcmcia_pwr,
190 };
191
192 EXPORT_SYMBOL(spitzscoop_device);
193 EXPORT_SYMBOL(spitzscoop2_device);
194
195
196 /*
197  * Spitz SSP Device
198  *
199  * Set the parent as the scoop device because a lot of SSP devices
200  * also use scoop functions and this makes the power up/down order
201  * work correctly.
202  */
203 struct platform_device spitzssp_device = {
204         .name           = "corgi-ssp",
205         .dev            = {
206                 .parent = &spitzscoop_device.dev,
207         },
208         .id             = -1,
209 };
210
211 struct corgissp_machinfo spitz_ssp_machinfo = {
212         .port           = 2,
213         .cs_lcdcon      = SPITZ_GPIO_LCDCON_CS,
214         .cs_ads7846     = SPITZ_GPIO_ADS7846_CS,
215         .cs_max1111     = SPITZ_GPIO_MAX1111_CS,
216         .clk_lcdcon     = 520,
217         .clk_ads7846    = 14,
218         .clk_max1111    = 56,
219 };
220
221
222 /*
223  * Spitz Backlight Device
224  */
225 static struct corgibl_machinfo spitz_bl_machinfo = {
226         .default_intensity = 0x1f,
227         .limit_mask = 0x0b,
228         .max_intensity = 0x2f,
229 };
230
231 static struct platform_device spitzbl_device = {
232         .name           = "corgi-bl",
233         .dev            = {
234                 .platform_data  = &spitz_bl_machinfo,
235         },
236         .id             = -1,
237 };
238
239
240 /*
241  * Spitz Keyboard Device
242  */
243 static struct platform_device spitzkbd_device = {
244         .name           = "spitz-keyboard",
245         .id             = -1,
246 };
247
248
249 /*
250  * Spitz LEDs
251  */
252 static struct platform_device spitzled_device = {
253         .name           = "spitz-led",
254         .id             = -1,
255 };
256
257 /*
258  * Spitz Touch Screen Device
259  */
260 static struct resource spitzts_resources[] = {
261         [0] = {
262                 .start          = SPITZ_IRQ_GPIO_TP_INT,
263                 .end            = SPITZ_IRQ_GPIO_TP_INT,
264                 .flags          = IORESOURCE_IRQ,
265         },
266 };
267
268 static struct corgits_machinfo  spitz_ts_machinfo = {
269         .get_hsync_len   = spitz_get_hsync_len,
270         .put_hsync       = spitz_put_hsync,
271         .wait_hsync      = spitz_wait_hsync,
272 };
273
274 static struct platform_device spitzts_device = {
275         .name           = "corgi-ts",
276         .dev            = {
277                 .parent = &spitzssp_device.dev,
278                 .platform_data  = &spitz_ts_machinfo,
279         },
280         .id             = -1,
281         .num_resources  = ARRAY_SIZE(spitzts_resources),
282         .resource       = spitzts_resources,
283 };
284
285
286 /*
287  * MMC/SD Device
288  *
289  * The card detect interrupt isn't debounced so we delay it by 250ms
290  * to give the card a chance to fully insert/eject.
291  */
292
293 static struct pxamci_platform_data spitz_mci_platform_data;
294
295 static int spitz_mci_init(struct device *dev, irq_handler_t spitz_detect_int, void *data)
296 {
297         int err;
298
299         /* setup GPIO for PXA27x MMC controller */
300         pxa_gpio_mode(GPIO32_MMCCLK_MD);
301         pxa_gpio_mode(GPIO112_MMCCMD_MD);
302         pxa_gpio_mode(GPIO92_MMCDAT0_MD);
303         pxa_gpio_mode(GPIO109_MMCDAT1_MD);
304         pxa_gpio_mode(GPIO110_MMCDAT2_MD);
305         pxa_gpio_mode(GPIO111_MMCDAT3_MD);
306         pxa_gpio_mode(SPITZ_GPIO_nSD_DETECT | GPIO_IN);
307         pxa_gpio_mode(SPITZ_GPIO_nSD_WP | GPIO_IN);
308
309         spitz_mci_platform_data.detect_delay = msecs_to_jiffies(250);
310
311         err = request_irq(SPITZ_IRQ_GPIO_nSD_DETECT, spitz_detect_int,
312                           IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
313                           "MMC card detect", data);
314         if (err) {
315                 printk(KERN_ERR "spitz_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
316                 return -1;
317         }
318
319         return 0;
320 }
321
322 static void spitz_mci_setpower(struct device *dev, unsigned int vdd)
323 {
324         struct pxamci_platform_data* p_d = dev->platform_data;
325
326         if (( 1 << vdd) & p_d->ocr_mask)
327                 spitz_card_pwr_ctrl(SPITZ_PWR_SD, 0x0004);
328         else
329                 spitz_card_pwr_ctrl(SPITZ_PWR_SD, 0x0000);
330 }
331
332 static int spitz_mci_get_ro(struct device *dev)
333 {
334         return GPLR(SPITZ_GPIO_nSD_WP) & GPIO_bit(SPITZ_GPIO_nSD_WP);
335 }
336
337 static void spitz_mci_exit(struct device *dev, void *data)
338 {
339         free_irq(SPITZ_IRQ_GPIO_nSD_DETECT, data);
340 }
341
342 static struct pxamci_platform_data spitz_mci_platform_data = {
343         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
344         .init           = spitz_mci_init,
345         .get_ro         = spitz_mci_get_ro,
346         .setpower       = spitz_mci_setpower,
347         .exit           = spitz_mci_exit,
348 };
349
350
351 /*
352  * USB Host (OHCI)
353  */
354 static int spitz_ohci_init(struct device *dev)
355 {
356         /* Only Port 2 is connected */
357         pxa_gpio_mode(SPITZ_GPIO_USB_CONNECT | GPIO_IN);
358         pxa_gpio_mode(SPITZ_GPIO_USB_HOST | GPIO_OUT);
359         pxa_gpio_mode(SPITZ_GPIO_USB_DEVICE | GPIO_IN);
360
361         /* Setup USB Port 2 Output Control Register */
362         UP2OCR = UP2OCR_HXS | UP2OCR_HXOE | UP2OCR_DPPDE | UP2OCR_DMPDE;
363
364         GPSR(SPITZ_GPIO_USB_HOST) = GPIO_bit(SPITZ_GPIO_USB_HOST);
365
366         UHCHR = (UHCHR) &
367                 ~(UHCHR_SSEP1 | UHCHR_SSEP2 | UHCHR_SSEP3 | UHCHR_SSE);
368
369         UHCRHDA |= UHCRHDA_NOCP;
370
371         return 0;
372 }
373
374 static struct pxaohci_platform_data spitz_ohci_platform_data = {
375         .port_mode      = PMM_NPS_MODE,
376         .init           = spitz_ohci_init,
377         .power_budget   = 150,
378 };
379
380
381 /*
382  * Irda
383  */
384 static void spitz_irda_transceiver_mode(struct device *dev, int mode)
385 {
386         if (mode & IR_OFF)
387                 set_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_IR_ON);
388         else
389                 reset_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_IR_ON);
390 }
391
392 #ifdef CONFIG_MACH_AKITA
393 static void akita_irda_transceiver_mode(struct device *dev, int mode)
394 {
395         if (mode & IR_OFF)
396                 akita_set_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_IR_ON);
397         else
398                 akita_reset_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_IR_ON);
399 }
400 #endif
401
402 static struct pxaficp_platform_data spitz_ficp_platform_data = {
403         .transceiver_cap  = IR_SIRMODE | IR_OFF,
404         .transceiver_mode = spitz_irda_transceiver_mode,
405 };
406
407
408 /*
409  * Spitz PXA Framebuffer
410  */
411
412 static struct pxafb_mode_info spitz_pxafb_modes[] = {
413 {
414         .pixclock       = 19231,
415         .xres           = 480,
416         .yres           = 640,
417         .bpp            = 16,
418         .hsync_len      = 40,
419         .left_margin    = 46,
420         .right_margin   = 125,
421         .vsync_len      = 3,
422         .upper_margin   = 1,
423         .lower_margin   = 0,
424         .sync           = 0,
425 },{
426         .pixclock       = 134617,
427         .xres           = 240,
428         .yres           = 320,
429         .bpp            = 16,
430         .hsync_len      = 20,
431         .left_margin    = 20,
432         .right_margin   = 46,
433         .vsync_len      = 2,
434         .upper_margin   = 1,
435         .lower_margin   = 0,
436         .sync           = 0,
437 },
438 };
439
440 static struct pxafb_mach_info spitz_pxafb_info = {
441         .modes          = &spitz_pxafb_modes[0],
442         .num_modes      = 2,
443         .fixed_modes    = 1,
444         .lccr0          = LCCR0_Color | LCCR0_Sngl | LCCR0_Act | LCCR0_LDDALT | LCCR0_OUC | LCCR0_CMDIM | LCCR0_RDSTM,
445         .lccr3          = LCCR3_PixRsEdg | LCCR3_OutEnH,
446         .pxafb_lcd_power = spitz_lcd_power,
447 };
448
449
450 static struct platform_device *devices[] __initdata = {
451         &spitzscoop_device,
452         &spitzssp_device,
453         &spitzkbd_device,
454         &spitzts_device,
455         &spitzbl_device,
456         &spitzled_device,
457 };
458
459 static void spitz_poweroff(void)
460 {
461         RCSR = RCSR_HWR | RCSR_WDR | RCSR_SMR | RCSR_GPR;
462
463         pxa_gpio_mode(SPITZ_GPIO_ON_RESET | GPIO_OUT);
464         GPSR(SPITZ_GPIO_ON_RESET) = GPIO_bit(SPITZ_GPIO_ON_RESET);
465
466         mdelay(1000);
467         arm_machine_restart('h');
468 }
469
470 static void spitz_restart(char mode)
471 {
472         /* Bootloader magic for a reboot */
473         if((MSC0 & 0xffff0000) == 0x7ff00000)
474                 MSC0 = (MSC0 & 0xffff) | 0x7ee00000;
475
476         spitz_poweroff();
477 }
478
479 static void __init common_init(void)
480 {
481         pm_power_off = spitz_poweroff;
482         arm_pm_restart = spitz_restart;
483
484         PMCR = 0x00;
485
486         /* setup sleep mode values */
487         PWER  = 0x00000002;
488         PFER  = 0x00000000;
489         PRER  = 0x00000002;
490         PGSR0 = 0x0158C000;
491         PGSR1 = 0x00FF0080;
492         PGSR2 = 0x0001C004;
493
494         /* Stop 3.6MHz and drive HIGH to PCMCIA and CS */
495         PCFR |= PCFR_OPDE;
496
497         corgi_ssp_set_machinfo(&spitz_ssp_machinfo);
498
499         pxa_gpio_mode(SPITZ_GPIO_HSYNC | GPIO_IN);
500
501         platform_add_devices(devices, ARRAY_SIZE(devices));
502         pxa_set_mci_info(&spitz_mci_platform_data);
503         pxa_set_ohci_info(&spitz_ohci_platform_data);
504         pxa_set_ficp_info(&spitz_ficp_platform_data);
505         set_pxa_fb_parent(&spitzssp_device.dev);
506         set_pxa_fb_info(&spitz_pxafb_info);
507 }
508
509 static void __init spitz_init(void)
510 {
511         platform_scoop_config = &spitz_pcmcia_config;
512
513         spitz_bl_machinfo.set_bl_intensity = spitz_bl_set_intensity;
514
515         common_init();
516
517         platform_device_register(&spitzscoop2_device);
518 }
519
520 #ifdef CONFIG_MACH_AKITA
521 /*
522  * Akita IO Expander
523  */
524 struct platform_device akitaioexp_device = {
525         .name           = "akita-ioexp",
526         .id             = -1,
527 };
528
529 EXPORT_SYMBOL_GPL(akitaioexp_device);
530
531 static void __init akita_init(void)
532 {
533         spitz_ficp_platform_data.transceiver_mode = akita_irda_transceiver_mode;
534
535         /* We just pretend the second element of the array doesn't exist */
536         spitz_pcmcia_config.num_devs = 1;
537         platform_scoop_config = &spitz_pcmcia_config;
538         spitz_bl_machinfo.set_bl_intensity = akita_bl_set_intensity;
539
540         platform_device_register(&akitaioexp_device);
541
542         spitzscoop_device.dev.parent = &akitaioexp_device.dev;
543         common_init();
544 }
545 #endif
546
547
548 static void __init fixup_spitz(struct machine_desc *desc,
549                 struct tag *tags, char **cmdline, struct meminfo *mi)
550 {
551         sharpsl_save_param();
552         mi->nr_banks = 1;
553         mi->bank[0].start = 0xa0000000;
554         mi->bank[0].node = 0;
555         mi->bank[0].size = (64*1024*1024);
556 }
557
558 #ifdef CONFIG_MACH_SPITZ
559 MACHINE_START(SPITZ, "SHARP Spitz")
560         .phys_io        = 0x40000000,
561         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
562         .fixup          = fixup_spitz,
563         .map_io         = pxa_map_io,
564         .init_irq       = pxa27x_init_irq,
565         .init_machine   = spitz_init,
566         .timer          = &pxa_timer,
567 MACHINE_END
568 #endif
569
570 #ifdef CONFIG_MACH_BORZOI
571 MACHINE_START(BORZOI, "SHARP Borzoi")
572         .phys_io        = 0x40000000,
573         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
574         .fixup          = fixup_spitz,
575         .map_io         = pxa_map_io,
576         .init_irq       = pxa27x_init_irq,
577         .init_machine   = spitz_init,
578         .timer          = &pxa_timer,
579 MACHINE_END
580 #endif
581
582 #ifdef CONFIG_MACH_AKITA
583 MACHINE_START(AKITA, "SHARP Akita")
584         .phys_io        = 0x40000000,
585         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
586         .fixup          = fixup_spitz,
587         .map_io         = pxa_map_io,
588         .init_irq       = pxa27x_init_irq,
589         .init_machine   = akita_init,
590         .timer          = &pxa_timer,
591 MACHINE_END
592 #endif