x86: cpa self-test, WARN_ON()
[wrt350n-kernel.git] / arch / arm / mach-pxa / spitz.c
blob5078edeadf9637ef0be1ca626e0043a0a3dcebc8
1 /*
2 * Support for Sharp SL-Cxx00 Series of PDAs
3 * Models: SL-C3000 (Spitz), SL-C1000 (Akita) and SL-C3100 (Borzoi)
5 * Copyright (c) 2005 Richard Purdie
7 * Based on Sharp's 2.4 kernel patches/lubbock.c
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.
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 #include <linux/backlight.h>
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>
34 #include <asm/mach/arch.h>
35 #include <asm/mach/map.h>
36 #include <asm/mach/irq.h>
38 #include <asm/arch/pxa-regs.h>
39 #include <asm/arch/irda.h>
40 #include <asm/arch/mmc.h>
41 #include <asm/arch/ohci.h>
42 #include <asm/arch/udc.h>
43 #include <asm/arch/pxafb.h>
44 #include <asm/arch/akita.h>
45 #include <asm/arch/spitz.h>
46 #include <asm/arch/sharpsl.h>
48 #include <asm/mach/sharpsl_param.h>
49 #include <asm/hardware/scoop.h>
51 #include "generic.h"
52 #include "devices.h"
53 #include "sharpsl.h"
56 * Spitz SCOOP Device #1
58 static struct resource spitz_scoop_resources[] = {
59 [0] = {
60 .start = 0x10800000,
61 .end = 0x10800fff,
62 .flags = IORESOURCE_MEM,
66 static struct scoop_config spitz_scoop_setup = {
67 .io_dir = SPITZ_SCP_IO_DIR,
68 .io_out = SPITZ_SCP_IO_OUT,
69 .suspend_clr = SPITZ_SCP_SUS_CLR,
70 .suspend_set = SPITZ_SCP_SUS_SET,
73 struct platform_device spitzscoop_device = {
74 .name = "sharp-scoop",
75 .id = 0,
76 .dev = {
77 .platform_data = &spitz_scoop_setup,
79 .num_resources = ARRAY_SIZE(spitz_scoop_resources),
80 .resource = spitz_scoop_resources,
84 * Spitz SCOOP Device #2
86 static struct resource spitz_scoop2_resources[] = {
87 [0] = {
88 .start = 0x08800040,
89 .end = 0x08800fff,
90 .flags = IORESOURCE_MEM,
94 static struct scoop_config spitz_scoop2_setup = {
95 .io_dir = SPITZ_SCP2_IO_DIR,
96 .io_out = SPITZ_SCP2_IO_OUT,
97 .suspend_clr = SPITZ_SCP2_SUS_CLR,
98 .suspend_set = SPITZ_SCP2_SUS_SET,
101 struct platform_device spitzscoop2_device = {
102 .name = "sharp-scoop",
103 .id = 1,
104 .dev = {
105 .platform_data = &spitz_scoop2_setup,
107 .num_resources = ARRAY_SIZE(spitz_scoop2_resources),
108 .resource = spitz_scoop2_resources,
111 #define SPITZ_PWR_SD 0x01
112 #define SPITZ_PWR_CF 0x02
114 /* Power control is shared with between one of the CF slots and SD */
115 static void spitz_card_pwr_ctrl(int device, unsigned short new_cpr)
117 unsigned short cpr = read_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR);
119 if (new_cpr & 0x0007) {
120 set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_CF_POWER);
121 if (!(cpr & 0x0002) && !(cpr & 0x0004))
122 mdelay(5);
123 if (device == SPITZ_PWR_CF)
124 cpr |= 0x0002;
125 if (device == SPITZ_PWR_SD)
126 cpr |= 0x0004;
127 write_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR, cpr | new_cpr);
128 } else {
129 if (device == SPITZ_PWR_CF)
130 cpr &= ~0x0002;
131 if (device == SPITZ_PWR_SD)
132 cpr &= ~0x0004;
133 if (!(cpr & 0x0002) && !(cpr & 0x0004)) {
134 write_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR, 0x0000);
135 mdelay(1);
136 reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_CF_POWER);
137 } else {
138 write_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR, cpr | new_cpr);
143 static void spitz_pcmcia_init(void)
145 /* Setup default state of GPIO outputs
146 before we enable them as outputs. */
147 GPSR(GPIO48_nPOE) = GPIO_bit(GPIO48_nPOE) |
148 GPIO_bit(GPIO49_nPWE) | GPIO_bit(GPIO50_nPIOR) |
149 GPIO_bit(GPIO51_nPIOW) | GPIO_bit(GPIO54_nPCE_2);
150 GPSR(GPIO85_nPCE_1) = GPIO_bit(GPIO85_nPCE_1);
152 pxa_gpio_mode(GPIO48_nPOE_MD);
153 pxa_gpio_mode(GPIO49_nPWE_MD);
154 pxa_gpio_mode(GPIO50_nPIOR_MD);
155 pxa_gpio_mode(GPIO51_nPIOW_MD);
156 pxa_gpio_mode(GPIO55_nPREG_MD);
157 pxa_gpio_mode(GPIO56_nPWAIT_MD);
158 pxa_gpio_mode(GPIO57_nIOIS16_MD);
159 pxa_gpio_mode(GPIO85_nPCE_1_MD);
160 pxa_gpio_mode(GPIO54_nPCE_2_MD);
161 pxa_gpio_mode(GPIO104_pSKTSEL_MD);
164 static void spitz_pcmcia_pwr(struct device *scoop, unsigned short cpr, int nr)
166 /* Only need to override behaviour for slot 0 */
167 if (nr == 0)
168 spitz_card_pwr_ctrl(SPITZ_PWR_CF, cpr);
169 else
170 write_scoop_reg(scoop, SCOOP_CPR, cpr);
173 static struct scoop_pcmcia_dev spitz_pcmcia_scoop[] = {
175 .dev = &spitzscoop_device.dev,
176 .irq = SPITZ_IRQ_GPIO_CF_IRQ,
177 .cd_irq = SPITZ_IRQ_GPIO_CF_CD,
178 .cd_irq_str = "PCMCIA0 CD",
180 .dev = &spitzscoop2_device.dev,
181 .irq = SPITZ_IRQ_GPIO_CF2_IRQ,
182 .cd_irq = -1,
186 static struct scoop_pcmcia_config spitz_pcmcia_config = {
187 .devs = &spitz_pcmcia_scoop[0],
188 .num_devs = 2,
189 .pcmcia_init = spitz_pcmcia_init,
190 .power_ctrl = spitz_pcmcia_pwr,
193 EXPORT_SYMBOL(spitzscoop_device);
194 EXPORT_SYMBOL(spitzscoop2_device);
198 * Spitz SSP Device
200 * Set the parent as the scoop device because a lot of SSP devices
201 * also use scoop functions and this makes the power up/down order
202 * work correctly.
204 struct platform_device spitzssp_device = {
205 .name = "corgi-ssp",
206 .dev = {
207 .parent = &spitzscoop_device.dev,
209 .id = -1,
212 struct corgissp_machinfo spitz_ssp_machinfo = {
213 .port = 2,
214 .cs_lcdcon = SPITZ_GPIO_LCDCON_CS,
215 .cs_ads7846 = SPITZ_GPIO_ADS7846_CS,
216 .cs_max1111 = SPITZ_GPIO_MAX1111_CS,
217 .clk_lcdcon = 520,
218 .clk_ads7846 = 14,
219 .clk_max1111 = 56,
224 * Spitz Backlight Device
226 static void spitz_bl_kick_battery(void)
228 void (*kick_batt)(void);
230 kick_batt = symbol_get(sharpsl_battery_kick);
231 if (kick_batt) {
232 kick_batt();
233 symbol_put(sharpsl_battery_kick);
237 static struct generic_bl_info spitz_bl_machinfo = {
238 .name = "corgi-bl",
239 .default_intensity = 0x1f,
240 .limit_mask = 0x0b,
241 .max_intensity = 0x2f,
242 .kick_battery = spitz_bl_kick_battery,
245 static struct platform_device spitzbl_device = {
246 .name = "generic-bl",
247 .dev = {
248 .platform_data = &spitz_bl_machinfo,
250 .id = -1,
255 * Spitz Keyboard Device
257 static struct platform_device spitzkbd_device = {
258 .name = "spitz-keyboard",
259 .id = -1,
264 * Spitz LEDs
266 static struct platform_device spitzled_device = {
267 .name = "spitz-led",
268 .id = -1,
272 * Spitz Touch Screen Device
275 static unsigned long (*get_hsync_invperiod)(struct device *dev);
277 static void inline sharpsl_wait_sync(int gpio)
279 while((GPLR(gpio) & GPIO_bit(gpio)) == 0);
280 while((GPLR(gpio) & GPIO_bit(gpio)) != 0);
283 static struct device *spitz_pxafb_dev;
285 static int is_pxafb_device(struct device * dev, void * data)
287 struct platform_device *pdev = container_of(dev, struct platform_device, dev);
289 return (strncmp(pdev->name, "pxa2xx-fb", 9) == 0);
292 static unsigned long spitz_get_hsync_invperiod(void)
294 #ifdef CONFIG_FB_PXA
295 if (!spitz_pxafb_dev) {
296 spitz_pxafb_dev = bus_find_device(&platform_bus_type, NULL, NULL, is_pxafb_device);
297 if (!spitz_pxafb_dev)
298 return 0;
300 if (!get_hsync_invperiod)
301 get_hsync_invperiod = symbol_get(pxafb_get_hsync_time);
302 if (!get_hsync_invperiod)
303 #endif
304 return 0;
306 return get_hsync_invperiod(spitz_pxafb_dev);
309 static void spitz_put_hsync(void)
311 put_device(spitz_pxafb_dev);
312 if (get_hsync_invperiod)
313 symbol_put(pxafb_get_hsync_time);
314 spitz_pxafb_dev = NULL;
315 get_hsync_invperiod = NULL;
318 static void spitz_wait_hsync(void)
320 sharpsl_wait_sync(SPITZ_GPIO_HSYNC);
323 static struct resource spitzts_resources[] = {
324 [0] = {
325 .start = SPITZ_IRQ_GPIO_TP_INT,
326 .end = SPITZ_IRQ_GPIO_TP_INT,
327 .flags = IORESOURCE_IRQ,
331 static struct corgits_machinfo spitz_ts_machinfo = {
332 .get_hsync_invperiod = spitz_get_hsync_invperiod,
333 .put_hsync = spitz_put_hsync,
334 .wait_hsync = spitz_wait_hsync,
337 static struct platform_device spitzts_device = {
338 .name = "corgi-ts",
339 .dev = {
340 .parent = &spitzssp_device.dev,
341 .platform_data = &spitz_ts_machinfo,
343 .id = -1,
344 .num_resources = ARRAY_SIZE(spitzts_resources),
345 .resource = spitzts_resources,
350 * MMC/SD Device
352 * The card detect interrupt isn't debounced so we delay it by 250ms
353 * to give the card a chance to fully insert/eject.
356 static struct pxamci_platform_data spitz_mci_platform_data;
358 static int spitz_mci_init(struct device *dev, irq_handler_t spitz_detect_int, void *data)
360 int err;
362 /* setup GPIO for PXA27x MMC controller */
363 pxa_gpio_mode(GPIO32_MMCCLK_MD);
364 pxa_gpio_mode(GPIO112_MMCCMD_MD);
365 pxa_gpio_mode(GPIO92_MMCDAT0_MD);
366 pxa_gpio_mode(GPIO109_MMCDAT1_MD);
367 pxa_gpio_mode(GPIO110_MMCDAT2_MD);
368 pxa_gpio_mode(GPIO111_MMCDAT3_MD);
369 pxa_gpio_mode(SPITZ_GPIO_nSD_DETECT | GPIO_IN);
370 pxa_gpio_mode(SPITZ_GPIO_nSD_WP | GPIO_IN);
372 spitz_mci_platform_data.detect_delay = msecs_to_jiffies(250);
374 err = request_irq(SPITZ_IRQ_GPIO_nSD_DETECT, spitz_detect_int,
375 IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
376 "MMC card detect", data);
377 if (err)
378 printk(KERN_ERR "spitz_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
380 return err;
383 static void spitz_mci_setpower(struct device *dev, unsigned int vdd)
385 struct pxamci_platform_data* p_d = dev->platform_data;
387 if (( 1 << vdd) & p_d->ocr_mask)
388 spitz_card_pwr_ctrl(SPITZ_PWR_SD, 0x0004);
389 else
390 spitz_card_pwr_ctrl(SPITZ_PWR_SD, 0x0000);
393 static int spitz_mci_get_ro(struct device *dev)
395 return GPLR(SPITZ_GPIO_nSD_WP) & GPIO_bit(SPITZ_GPIO_nSD_WP);
398 static void spitz_mci_exit(struct device *dev, void *data)
400 free_irq(SPITZ_IRQ_GPIO_nSD_DETECT, data);
403 static struct pxamci_platform_data spitz_mci_platform_data = {
404 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
405 .init = spitz_mci_init,
406 .get_ro = spitz_mci_get_ro,
407 .setpower = spitz_mci_setpower,
408 .exit = spitz_mci_exit,
413 * USB Host (OHCI)
415 static int spitz_ohci_init(struct device *dev)
417 /* Only Port 2 is connected */
418 pxa_gpio_mode(SPITZ_GPIO_USB_CONNECT | GPIO_IN);
419 pxa_gpio_mode(SPITZ_GPIO_USB_HOST | GPIO_OUT);
420 pxa_gpio_mode(SPITZ_GPIO_USB_DEVICE | GPIO_IN);
422 /* Setup USB Port 2 Output Control Register */
423 UP2OCR = UP2OCR_HXS | UP2OCR_HXOE | UP2OCR_DPPDE | UP2OCR_DMPDE;
425 GPSR(SPITZ_GPIO_USB_HOST) = GPIO_bit(SPITZ_GPIO_USB_HOST);
427 UHCHR = (UHCHR) &
428 ~(UHCHR_SSEP1 | UHCHR_SSEP2 | UHCHR_SSEP3 | UHCHR_SSE);
430 UHCRHDA |= UHCRHDA_NOCP;
432 return 0;
435 static struct pxaohci_platform_data spitz_ohci_platform_data = {
436 .port_mode = PMM_NPS_MODE,
437 .init = spitz_ohci_init,
438 .power_budget = 150,
443 * Irda
445 static void spitz_irda_transceiver_mode(struct device *dev, int mode)
447 if (mode & IR_OFF)
448 set_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_IR_ON);
449 else
450 reset_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_IR_ON);
453 #ifdef CONFIG_MACH_AKITA
454 static void akita_irda_transceiver_mode(struct device *dev, int mode)
456 if (mode & IR_OFF)
457 akita_set_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_IR_ON);
458 else
459 akita_reset_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_IR_ON);
461 #endif
463 static struct pxaficp_platform_data spitz_ficp_platform_data = {
464 .transceiver_cap = IR_SIRMODE | IR_OFF,
465 .transceiver_mode = spitz_irda_transceiver_mode,
470 * Spitz PXA Framebuffer
473 static void spitz_lcd_power(int on, struct fb_var_screeninfo *var)
475 if (on)
476 corgi_lcdtg_hw_init(var->xres);
477 else
478 corgi_lcdtg_suspend();
481 static struct pxafb_mode_info spitz_pxafb_modes[] = {
483 .pixclock = 19231,
484 .xres = 480,
485 .yres = 640,
486 .bpp = 16,
487 .hsync_len = 40,
488 .left_margin = 46,
489 .right_margin = 125,
490 .vsync_len = 3,
491 .upper_margin = 1,
492 .lower_margin = 0,
493 .sync = 0,
495 .pixclock = 134617,
496 .xres = 240,
497 .yres = 320,
498 .bpp = 16,
499 .hsync_len = 20,
500 .left_margin = 20,
501 .right_margin = 46,
502 .vsync_len = 2,
503 .upper_margin = 1,
504 .lower_margin = 0,
505 .sync = 0,
509 static struct pxafb_mach_info spitz_pxafb_info = {
510 .modes = &spitz_pxafb_modes[0],
511 .num_modes = 2,
512 .fixed_modes = 1,
513 .lccr0 = LCCR0_Color | LCCR0_Sngl | LCCR0_Act | LCCR0_LDDALT | LCCR0_OUC | LCCR0_CMDIM | LCCR0_RDSTM,
514 .lccr3 = LCCR3_PixRsEdg | LCCR3_OutEnH,
515 .pxafb_lcd_power = spitz_lcd_power,
519 static struct platform_device *devices[] __initdata = {
520 &spitzscoop_device,
521 &spitzssp_device,
522 &spitzkbd_device,
523 &spitzts_device,
524 &spitzbl_device,
525 &spitzled_device,
528 static void spitz_poweroff(void)
530 RCSR = RCSR_HWR | RCSR_WDR | RCSR_SMR | RCSR_GPR;
532 pxa_gpio_mode(SPITZ_GPIO_ON_RESET | GPIO_OUT);
533 GPSR(SPITZ_GPIO_ON_RESET) = GPIO_bit(SPITZ_GPIO_ON_RESET);
535 mdelay(1000);
536 arm_machine_restart('h');
539 static void spitz_restart(char mode)
541 /* Bootloader magic for a reboot */
542 if((MSC0 & 0xffff0000) == 0x7ff00000)
543 MSC0 = (MSC0 & 0xffff) | 0x7ee00000;
545 spitz_poweroff();
548 static void __init common_init(void)
550 pm_power_off = spitz_poweroff;
551 arm_pm_restart = spitz_restart;
553 PMCR = 0x00;
555 /* setup sleep mode values */
556 PWER = 0x00000002;
557 PFER = 0x00000000;
558 PRER = 0x00000002;
559 PGSR0 = 0x0158C000;
560 PGSR1 = 0x00FF0080;
561 PGSR2 = 0x0001C004;
563 /* Stop 3.6MHz and drive HIGH to PCMCIA and CS */
564 PCFR |= PCFR_OPDE;
566 corgi_ssp_set_machinfo(&spitz_ssp_machinfo);
568 pxa_gpio_mode(SPITZ_GPIO_HSYNC | GPIO_IN);
570 platform_add_devices(devices, ARRAY_SIZE(devices));
571 pxa_set_mci_info(&spitz_mci_platform_data);
572 pxa_set_ohci_info(&spitz_ohci_platform_data);
573 pxa_set_ficp_info(&spitz_ficp_platform_data);
574 set_pxa_fb_parent(&spitzssp_device.dev);
575 set_pxa_fb_info(&spitz_pxafb_info);
578 #if defined(CONFIG_MACH_SPITZ) || defined(CONFIG_MACH_BORZOI)
579 static void spitz_bl_set_intensity(int intensity)
581 if (intensity > 0x10)
582 intensity += 0x10;
584 /* Bits 0-4 are accessed via the SSP interface */
585 corgi_ssp_blduty_set(intensity & 0x1f);
587 /* Bit 5 is via SCOOP */
588 if (intensity & 0x0020)
589 reset_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_BACKLIGHT_CONT);
590 else
591 set_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_BACKLIGHT_CONT);
593 if (intensity)
594 set_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_BACKLIGHT_ON);
595 else
596 reset_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_BACKLIGHT_ON);
599 static void __init spitz_init(void)
601 platform_scoop_config = &spitz_pcmcia_config;
603 spitz_bl_machinfo.set_bl_intensity = spitz_bl_set_intensity;
605 common_init();
607 platform_device_register(&spitzscoop2_device);
609 #endif
611 #ifdef CONFIG_MACH_AKITA
613 * Akita IO Expander
615 struct platform_device akitaioexp_device = {
616 .name = "akita-ioexp",
617 .id = -1,
620 EXPORT_SYMBOL_GPL(akitaioexp_device);
622 static void akita_bl_set_intensity(int intensity)
624 if (intensity > 0x10)
625 intensity += 0x10;
627 /* Bits 0-4 are accessed via the SSP interface */
628 corgi_ssp_blduty_set(intensity & 0x1f);
630 /* Bit 5 is via IO-Expander */
631 if (intensity & 0x0020)
632 akita_reset_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_BACKLIGHT_CONT);
633 else
634 akita_set_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_BACKLIGHT_CONT);
636 if (intensity)
637 akita_set_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_BACKLIGHT_ON);
638 else
639 akita_reset_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_BACKLIGHT_ON);
642 static void __init akita_init(void)
644 spitz_ficp_platform_data.transceiver_mode = akita_irda_transceiver_mode;
646 /* We just pretend the second element of the array doesn't exist */
647 spitz_pcmcia_config.num_devs = 1;
648 platform_scoop_config = &spitz_pcmcia_config;
649 spitz_bl_machinfo.set_bl_intensity = akita_bl_set_intensity;
651 platform_device_register(&akitaioexp_device);
653 spitzscoop_device.dev.parent = &akitaioexp_device.dev;
654 common_init();
656 #endif
658 static void __init fixup_spitz(struct machine_desc *desc,
659 struct tag *tags, char **cmdline, struct meminfo *mi)
661 sharpsl_save_param();
662 mi->nr_banks = 1;
663 mi->bank[0].start = 0xa0000000;
664 mi->bank[0].node = 0;
665 mi->bank[0].size = (64*1024*1024);
668 #ifdef CONFIG_MACH_SPITZ
669 MACHINE_START(SPITZ, "SHARP Spitz")
670 .phys_io = 0x40000000,
671 .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
672 .fixup = fixup_spitz,
673 .map_io = pxa_map_io,
674 .init_irq = pxa27x_init_irq,
675 .init_machine = spitz_init,
676 .timer = &pxa_timer,
677 MACHINE_END
678 #endif
680 #ifdef CONFIG_MACH_BORZOI
681 MACHINE_START(BORZOI, "SHARP Borzoi")
682 .phys_io = 0x40000000,
683 .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
684 .fixup = fixup_spitz,
685 .map_io = pxa_map_io,
686 .init_irq = pxa27x_init_irq,
687 .init_machine = spitz_init,
688 .timer = &pxa_timer,
689 MACHINE_END
690 #endif
692 #ifdef CONFIG_MACH_AKITA
693 MACHINE_START(AKITA, "SHARP Akita")
694 .phys_io = 0x40000000,
695 .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
696 .fixup = fixup_spitz,
697 .map_io = pxa_map_io,
698 .init_irq = pxa27x_init_irq,
699 .init_machine = akita_init,
700 .timer = &pxa_timer,
701 MACHINE_END
702 #endif