f2007db0cda5aebe5ad398a3909f8ddecd1f688f
[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
24 #include <asm/setup.h>
25 #include <asm/memory.h>
26 #include <asm/mach-types.h>
27 #include <asm/hardware.h>
28 #include <asm/irq.h>
29 #include <asm/io.h>
30
31 #include <asm/mach/arch.h>
32 #include <asm/mach/map.h>
33 #include <asm/mach/irq.h>
34
35 #include <asm/arch/pxa-regs.h>
36 #include <asm/arch/irq.h>
37 #include <asm/arch/irda.h>
38 #include <asm/arch/mmc.h>
39 #include <asm/arch/ohci.h>
40 #include <asm/arch/udc.h>
41 #include <asm/arch/pxafb.h>
42 #include <asm/arch/akita.h>
43 #include <asm/arch/spitz.h>
44 #include <asm/arch/sharpsl.h>
45
46 #include <asm/mach/sharpsl_param.h>
47 #include <asm/hardware/scoop.h>
48
49 #include "generic.h"
50 #include "sharpsl.h"
51
52 /*
53  * Spitz SCOOP Device #1
54  */
55 static struct resource spitz_scoop_resources[] = {
56         [0] = {
57                 .start          = 0x10800000,
58                 .end            = 0x10800fff,
59                 .flags          = IORESOURCE_MEM,
60         },
61 };
62
63 static struct scoop_config spitz_scoop_setup = {
64         .io_dir         = SPITZ_SCP_IO_DIR,
65         .io_out         = SPITZ_SCP_IO_OUT,
66         .suspend_clr = SPITZ_SCP_SUS_CLR,
67         .suspend_set = SPITZ_SCP_SUS_SET,
68 };
69
70 struct platform_device spitzscoop_device = {
71         .name           = "sharp-scoop",
72         .id             = 0,
73         .dev            = {
74                 .platform_data  = &spitz_scoop_setup,
75         },
76         .num_resources  = ARRAY_SIZE(spitz_scoop_resources),
77         .resource       = spitz_scoop_resources,
78 };
79
80 /*
81  * Spitz SCOOP Device #2
82  */
83 static struct resource spitz_scoop2_resources[] = {
84         [0] = {
85                 .start          = 0x08800040,
86                 .end            = 0x08800fff,
87                 .flags          = IORESOURCE_MEM,
88         },
89 };
90
91 static struct scoop_config spitz_scoop2_setup = {
92         .io_dir         = SPITZ_SCP2_IO_DIR,
93         .io_out         = SPITZ_SCP2_IO_OUT,
94         .suspend_clr = SPITZ_SCP2_SUS_CLR,
95         .suspend_set = SPITZ_SCP2_SUS_SET,
96 };
97
98 struct platform_device spitzscoop2_device = {
99         .name           = "sharp-scoop",
100         .id             = 1,
101         .dev            = {
102                 .platform_data  = &spitz_scoop2_setup,
103         },
104         .num_resources  = ARRAY_SIZE(spitz_scoop2_resources),
105         .resource       = spitz_scoop2_resources,
106 };
107
108 #define SPITZ_PWR_SD 0x01
109 #define SPITZ_PWR_CF 0x02
110
111 /* Power control is shared with between one of the CF slots and SD */
112 static void spitz_card_pwr_ctrl(int device, unsigned short new_cpr)
113 {
114         unsigned short cpr = read_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR);
115
116         if (new_cpr & 0x0007) {
117                 set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_CF_POWER);
118                 if (!(cpr & 0x0002) && !(cpr & 0x0004))
119                         mdelay(5);
120                 if (device == SPITZ_PWR_CF)
121                         cpr |= 0x0002;
122                 if (device == SPITZ_PWR_SD)
123                         cpr |= 0x0004;
124                 write_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR, cpr | new_cpr);
125         } else {
126                 if (device == SPITZ_PWR_CF)
127                         cpr &= ~0x0002;
128                 if (device == SPITZ_PWR_SD)
129                         cpr &= ~0x0004;
130                 if (!(cpr & 0x0002) && !(cpr & 0x0004)) {
131                         write_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR, 0x0000);
132                         mdelay(1);
133                         reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_CF_POWER);
134                 } else {
135                         write_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR, cpr | new_cpr);
136                 }
137         }
138 }
139
140 static void spitz_pcmcia_init(void)
141 {
142         /* Setup default state of GPIO outputs
143            before we enable them as outputs. */
144         GPSR(GPIO48_nPOE) = GPIO_bit(GPIO48_nPOE) |
145                 GPIO_bit(GPIO49_nPWE) | GPIO_bit(GPIO50_nPIOR) |
146                 GPIO_bit(GPIO51_nPIOW) | GPIO_bit(GPIO54_nPCE_2);
147         GPSR(GPIO85_nPCE_1) = GPIO_bit(GPIO85_nPCE_1);
148
149         pxa_gpio_mode(GPIO48_nPOE_MD);
150         pxa_gpio_mode(GPIO49_nPWE_MD);
151         pxa_gpio_mode(GPIO50_nPIOR_MD);
152         pxa_gpio_mode(GPIO51_nPIOW_MD);
153         pxa_gpio_mode(GPIO55_nPREG_MD);
154         pxa_gpio_mode(GPIO56_nPWAIT_MD);
155         pxa_gpio_mode(GPIO57_nIOIS16_MD);
156         pxa_gpio_mode(GPIO85_nPCE_1_MD);
157         pxa_gpio_mode(GPIO54_nPCE_2_MD);
158         pxa_gpio_mode(GPIO104_pSKTSEL_MD);
159 }
160
161 static void spitz_pcmcia_pwr(struct device *scoop, unsigned short cpr, int nr)
162 {
163         /* Only need to override behaviour for slot 0 */
164         if (nr == 0)
165                 spitz_card_pwr_ctrl(SPITZ_PWR_CF, cpr);
166         else
167                 write_scoop_reg(scoop, SCOOP_CPR, cpr);
168 }
169
170 static struct scoop_pcmcia_dev spitz_pcmcia_scoop[] = {
171 {
172         .dev        = &spitzscoop_device.dev,
173         .irq        = SPITZ_IRQ_GPIO_CF_IRQ,
174         .cd_irq     = SPITZ_IRQ_GPIO_CF_CD,
175         .cd_irq_str = "PCMCIA0 CD",
176 },{
177         .dev        = &spitzscoop2_device.dev,
178         .irq        = SPITZ_IRQ_GPIO_CF2_IRQ,
179         .cd_irq     = -1,
180 },
181 };
182
183 static struct scoop_pcmcia_config spitz_pcmcia_config = {
184         .devs         = &spitz_pcmcia_scoop[0],
185         .num_devs     = 2,
186         .pcmcia_init  = spitz_pcmcia_init,
187         .power_ctrl   = spitz_pcmcia_pwr,
188 };
189
190 EXPORT_SYMBOL(spitzscoop_device);
191 EXPORT_SYMBOL(spitzscoop2_device);
192
193
194 /*
195  * Spitz SSP Device
196  *
197  * Set the parent as the scoop device because a lot of SSP devices
198  * also use scoop functions and this makes the power up/down order
199  * work correctly.
200  */
201 struct platform_device spitzssp_device = {
202         .name           = "corgi-ssp",
203         .dev            = {
204                 .parent = &spitzscoop_device.dev,
205         },
206         .id             = -1,
207 };
208
209 struct corgissp_machinfo spitz_ssp_machinfo = {
210         .port           = 2,
211         .cs_lcdcon      = SPITZ_GPIO_LCDCON_CS,
212         .cs_ads7846     = SPITZ_GPIO_ADS7846_CS,
213         .cs_max1111     = SPITZ_GPIO_MAX1111_CS,
214         .clk_lcdcon     = 520,
215         .clk_ads7846    = 14,
216         .clk_max1111    = 56,
217 };
218
219
220 /*
221  * Spitz Backlight Device
222  */
223 static struct corgibl_machinfo spitz_bl_machinfo = {
224         .max_intensity = 0x2f,
225 };
226
227 static struct platform_device spitzbl_device = {
228         .name           = "corgi-bl",
229         .dev            = {
230                 .platform_data  = &spitz_bl_machinfo,
231         },
232         .id             = -1,
233 };
234
235
236 /*
237  * Spitz Keyboard Device
238  */
239 static struct platform_device spitzkbd_device = {
240         .name           = "spitz-keyboard",
241         .id             = -1,
242 };
243
244
245 /*
246  * Spitz Touch Screen Device
247  */
248 static struct resource spitzts_resources[] = {
249         [0] = {
250                 .start          = SPITZ_IRQ_GPIO_TP_INT,
251                 .end            = SPITZ_IRQ_GPIO_TP_INT,
252                 .flags          = IORESOURCE_IRQ,
253         },
254 };
255
256 static struct corgits_machinfo  spitz_ts_machinfo = {
257         .get_hsync_len   = spitz_get_hsync_len,
258         .put_hsync       = spitz_put_hsync,
259         .wait_hsync      = spitz_wait_hsync,
260 };
261
262 static struct platform_device spitzts_device = {
263         .name           = "corgi-ts",
264         .dev            = {
265                 .parent = &spitzssp_device.dev,
266                 .platform_data  = &spitz_ts_machinfo,
267         },
268         .id             = -1,
269         .num_resources  = ARRAY_SIZE(spitzts_resources),
270         .resource       = spitzts_resources,
271 };
272
273
274 /*
275  * MMC/SD Device
276  *
277  * The card detect interrupt isn't debounced so we delay it by 250ms
278  * to give the card a chance to fully insert/eject.
279  */
280
281 static struct pxamci_platform_data spitz_mci_platform_data;
282
283 static int spitz_mci_init(struct device *dev, irqreturn_t (*spitz_detect_int)(int, void *, struct pt_regs *), void *data)
284 {
285         int err;
286
287         /* setup GPIO for PXA27x MMC controller */
288         pxa_gpio_mode(GPIO32_MMCCLK_MD);
289         pxa_gpio_mode(GPIO112_MMCCMD_MD);
290         pxa_gpio_mode(GPIO92_MMCDAT0_MD);
291         pxa_gpio_mode(GPIO109_MMCDAT1_MD);
292         pxa_gpio_mode(GPIO110_MMCDAT2_MD);
293         pxa_gpio_mode(GPIO111_MMCDAT3_MD);
294         pxa_gpio_mode(SPITZ_GPIO_nSD_DETECT | GPIO_IN);
295         pxa_gpio_mode(SPITZ_GPIO_nSD_WP | GPIO_IN);
296
297         spitz_mci_platform_data.detect_delay = msecs_to_jiffies(250);
298
299         err = request_irq(SPITZ_IRQ_GPIO_nSD_DETECT, spitz_detect_int, SA_INTERRUPT,
300                              "MMC card detect", data);
301         if (err) {
302                 printk(KERN_ERR "spitz_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
303                 return -1;
304         }
305
306         set_irq_type(SPITZ_IRQ_GPIO_nSD_DETECT, IRQT_BOTHEDGE);
307
308         return 0;
309 }
310
311 static void spitz_mci_setpower(struct device *dev, unsigned int vdd)
312 {
313         struct pxamci_platform_data* p_d = dev->platform_data;
314
315         if (( 1 << vdd) & p_d->ocr_mask)
316                 spitz_card_pwr_ctrl(SPITZ_PWR_SD, 0x0004);
317         else
318                 spitz_card_pwr_ctrl(SPITZ_PWR_SD, 0x0000);
319 }
320
321 static int spitz_mci_get_ro(struct device *dev)
322 {
323         return GPLR(SPITZ_GPIO_nSD_WP) & GPIO_bit(SPITZ_GPIO_nSD_WP);
324 }
325
326 static void spitz_mci_exit(struct device *dev, void *data)
327 {
328         free_irq(SPITZ_IRQ_GPIO_nSD_DETECT, data);
329 }
330
331 static struct pxamci_platform_data spitz_mci_platform_data = {
332         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
333         .init           = spitz_mci_init,
334         .get_ro         = spitz_mci_get_ro,
335         .setpower       = spitz_mci_setpower,
336         .exit           = spitz_mci_exit,
337 };
338
339
340 /*
341  * USB Host (OHCI)
342  */
343 static int spitz_ohci_init(struct device *dev)
344 {
345         /* Only Port 2 is connected */
346         pxa_gpio_mode(SPITZ_GPIO_USB_CONNECT | GPIO_IN);
347         pxa_gpio_mode(SPITZ_GPIO_USB_HOST | GPIO_OUT);
348         pxa_gpio_mode(SPITZ_GPIO_USB_DEVICE | GPIO_IN);
349
350         /* Setup USB Port 2 Output Control Register */
351         UP2OCR = UP2OCR_HXS | UP2OCR_HXOE | UP2OCR_DPPDE | UP2OCR_DMPDE;
352
353         GPSR(SPITZ_GPIO_USB_HOST) = GPIO_bit(SPITZ_GPIO_USB_HOST);
354
355         UHCHR = (UHCHR) &
356                 ~(UHCHR_SSEP1 | UHCHR_SSEP2 | UHCHR_SSEP3 | UHCHR_SSE);
357
358         UHCRHDA |= UHCRHDA_NOCP;
359
360         return 0;
361 }
362
363 static struct pxaohci_platform_data spitz_ohci_platform_data = {
364         .port_mode      = PMM_NPS_MODE,
365         .init           = spitz_ohci_init,
366 };
367
368
369 /*
370  * Irda
371  */
372 static void spitz_irda_transceiver_mode(struct device *dev, int mode)
373 {
374         if (mode & IR_OFF)
375                 set_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_IR_ON);
376         else
377                 reset_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_IR_ON);
378 }
379
380 #ifdef CONFIG_MACH_AKITA
381 static void akita_irda_transceiver_mode(struct device *dev, int mode)
382 {
383         if (mode & IR_OFF)
384                 akita_set_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_IR_ON);
385         else
386                 akita_reset_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_IR_ON);
387 }
388 #endif
389
390 static struct pxaficp_platform_data spitz_ficp_platform_data = {
391         .transceiver_cap  = IR_SIRMODE | IR_OFF,
392         .transceiver_mode = spitz_irda_transceiver_mode,
393 };
394
395
396 /*
397  * Spitz PXA Framebuffer
398  */
399 static struct pxafb_mach_info spitz_pxafb_info __initdata = {
400         .pixclock       = 19231,
401         .xres           = 480,
402         .yres           = 640,
403         .bpp            = 16,
404         .hsync_len      = 40,
405         .left_margin    = 46,
406         .right_margin   = 125,
407         .vsync_len      = 3,
408         .upper_margin   = 1,
409         .lower_margin   = 0,
410         .sync           = 0,
411         .lccr0          = LCCR0_Color | LCCR0_Sngl | LCCR0_Act | LCCR0_LDDALT | LCCR0_OUC | LCCR0_CMDIM | LCCR0_RDSTM,
412         .lccr3          = LCCR3_PixRsEdg | LCCR3_OutEnH,
413         .pxafb_lcd_power = spitz_lcd_power,
414 };
415
416
417 static struct platform_device *devices[] __initdata = {
418         &spitzscoop_device,
419         &spitzssp_device,
420         &spitzkbd_device,
421         &spitzts_device,
422         &spitzbl_device,
423 };
424
425 static void __init common_init(void)
426 {
427         PMCR = 0x00;
428
429         /* setup sleep mode values */
430         PWER  = 0x00000002;
431         PFER  = 0x00000000;
432         PRER  = 0x00000002;
433         PGSR0 = 0x0158C000;
434         PGSR1 = 0x00FF0080;
435         PGSR2 = 0x0001C004;
436
437         /* Stop 3.6MHz and drive HIGH to PCMCIA and CS */
438         PCFR |= PCFR_OPDE;
439
440         corgi_ssp_set_machinfo(&spitz_ssp_machinfo);
441
442         pxa_gpio_mode(SPITZ_GPIO_HSYNC | GPIO_IN);
443
444         platform_add_devices(devices, ARRAY_SIZE(devices));
445         pxa_set_mci_info(&spitz_mci_platform_data);
446         pxa_set_ohci_info(&spitz_ohci_platform_data);
447         pxa_set_ficp_info(&spitz_ficp_platform_data);
448         set_pxa_fb_parent(&spitzssp_device.dev);
449         set_pxa_fb_info(&spitz_pxafb_info);
450 }
451
452 static void __init spitz_init(void)
453 {
454         platform_scoop_config = &spitz_pcmcia_config;
455
456         spitz_bl_machinfo.set_bl_intensity = spitz_bl_set_intensity;
457
458         common_init();
459
460         platform_device_register(&spitzscoop2_device);
461 }
462
463 #ifdef CONFIG_MACH_AKITA
464 /*
465  * Akita IO Expander
466  */
467 struct platform_device akitaioexp_device = {
468         .name           = "akita-ioexp",
469         .id             = -1,
470 };
471
472 static void __init akita_init(void)
473 {
474         spitz_ficp_platform_data.transceiver_mode = akita_irda_transceiver_mode;
475
476         /* We just pretend the second element of the array doesn't exist */
477         spitz_pcmcia_config.num_devs = 1;
478         platform_scoop_config = &spitz_pcmcia_config;
479         spitz_bl_machinfo.set_bl_intensity = akita_bl_set_intensity;
480
481         platform_device_register(&akitaioexp_device);
482
483         spitzscoop_device.dev.parent = &akitaioexp_device.dev;
484         common_init();
485 }
486 #endif
487
488
489 static void __init fixup_spitz(struct machine_desc *desc,
490                 struct tag *tags, char **cmdline, struct meminfo *mi)
491 {
492         sharpsl_save_param();
493         mi->nr_banks = 1;
494         mi->bank[0].start = 0xa0000000;
495         mi->bank[0].node = 0;
496         mi->bank[0].size = (64*1024*1024);
497 }
498
499 #ifdef CONFIG_MACH_SPITZ
500 MACHINE_START(SPITZ, "SHARP Spitz")
501         .phys_ram       = 0xa0000000,
502         .phys_io        = 0x40000000,
503         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
504         .fixup          = fixup_spitz,
505         .map_io         = pxa_map_io,
506         .init_irq       = pxa_init_irq,
507         .init_machine   = spitz_init,
508         .timer          = &pxa_timer,
509 MACHINE_END
510 #endif
511
512 #ifdef CONFIG_MACH_BORZOI
513 MACHINE_START(BORZOI, "SHARP Borzoi")
514         .phys_ram       = 0xa0000000,
515         .phys_io        = 0x40000000,
516         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
517         .fixup          = fixup_spitz,
518         .map_io         = pxa_map_io,
519         .init_irq       = pxa_init_irq,
520         .init_machine   = spitz_init,
521         .timer          = &pxa_timer,
522 MACHINE_END
523 #endif
524
525 #ifdef CONFIG_MACH_AKITA
526 MACHINE_START(AKITA, "SHARP Akita")
527         .phys_ram       = 0xa0000000,
528         .phys_io        = 0x40000000,
529         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
530         .fixup          = fixup_spitz,
531         .map_io         = pxa_map_io,
532         .init_irq       = pxa_init_irq,
533         .init_machine   = akita_init,
534         .timer          = &pxa_timer,
535 MACHINE_END
536 #endif