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>
21 #include <linux/interrupt.h>
22 #include <linux/mmc/host.h>
24 #include <linux/backlight.h>
26 #include <asm/setup.h>
27 #include <asm/memory.h>
28 #include <asm/mach-types.h>
29 #include <mach/hardware.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 <mach/pxa-regs.h>
39 #include <mach/pxa2xx-regs.h>
40 #include <mach/pxa2xx-gpio.h>
41 #include <mach/pxa27x-udc.h>
42 #include <mach/reset.h>
43 #include <mach/irda.h>
45 #include <mach/ohci.h>
47 #include <mach/pxafb.h>
48 #include <mach/akita.h>
49 #include <mach/spitz.h>
50 #include <mach/sharpsl.h>
52 #include <asm/mach/sharpsl_param.h>
53 #include <asm/hardware/scoop.h>
60 * Spitz SCOOP Device #1
62 static struct resource spitz_scoop_resources[] = {
66 .flags = IORESOURCE_MEM,
70 static struct scoop_config spitz_scoop_setup = {
71 .io_dir = SPITZ_SCP_IO_DIR,
72 .io_out = SPITZ_SCP_IO_OUT,
73 .suspend_clr = SPITZ_SCP_SUS_CLR,
74 .suspend_set = SPITZ_SCP_SUS_SET,
77 struct platform_device spitzscoop_device = {
78 .name = "sharp-scoop",
81 .platform_data = &spitz_scoop_setup,
83 .num_resources = ARRAY_SIZE(spitz_scoop_resources),
84 .resource = spitz_scoop_resources,
88 * Spitz SCOOP Device #2
90 static struct resource spitz_scoop2_resources[] = {
94 .flags = IORESOURCE_MEM,
98 static struct scoop_config spitz_scoop2_setup = {
99 .io_dir = SPITZ_SCP2_IO_DIR,
100 .io_out = SPITZ_SCP2_IO_OUT,
101 .suspend_clr = SPITZ_SCP2_SUS_CLR,
102 .suspend_set = SPITZ_SCP2_SUS_SET,
105 struct platform_device spitzscoop2_device = {
106 .name = "sharp-scoop",
109 .platform_data = &spitz_scoop2_setup,
111 .num_resources = ARRAY_SIZE(spitz_scoop2_resources),
112 .resource = spitz_scoop2_resources,
115 #define SPITZ_PWR_SD 0x01
116 #define SPITZ_PWR_CF 0x02
118 /* Power control is shared with between one of the CF slots and SD */
119 static void spitz_card_pwr_ctrl(int device, unsigned short new_cpr)
121 unsigned short cpr = read_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR);
123 if (new_cpr & 0x0007) {
124 set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_CF_POWER);
125 if (!(cpr & 0x0002) && !(cpr & 0x0004))
127 if (device == SPITZ_PWR_CF)
129 if (device == SPITZ_PWR_SD)
131 write_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR, cpr | new_cpr);
133 if (device == SPITZ_PWR_CF)
135 if (device == SPITZ_PWR_SD)
137 if (!(cpr & 0x0002) && !(cpr & 0x0004)) {
138 write_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR, 0x0000);
140 reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_CF_POWER);
142 write_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR, cpr | new_cpr);
147 static void spitz_pcmcia_init(void)
149 /* Setup default state of GPIO outputs
150 before we enable them as outputs. */
151 GPSR(GPIO48_nPOE) = GPIO_bit(GPIO48_nPOE) |
152 GPIO_bit(GPIO49_nPWE) | GPIO_bit(GPIO50_nPIOR) |
153 GPIO_bit(GPIO51_nPIOW) | GPIO_bit(GPIO54_nPCE_2);
154 GPSR(GPIO85_nPCE_1) = GPIO_bit(GPIO85_nPCE_1);
156 pxa_gpio_mode(GPIO48_nPOE_MD);
157 pxa_gpio_mode(GPIO49_nPWE_MD);
158 pxa_gpio_mode(GPIO50_nPIOR_MD);
159 pxa_gpio_mode(GPIO51_nPIOW_MD);
160 pxa_gpio_mode(GPIO55_nPREG_MD);
161 pxa_gpio_mode(GPIO56_nPWAIT_MD);
162 pxa_gpio_mode(GPIO57_nIOIS16_MD);
163 pxa_gpio_mode(GPIO85_nPCE_1_MD);
164 pxa_gpio_mode(GPIO54_nPCE_2_MD);
165 pxa_gpio_mode(GPIO104_pSKTSEL_MD);
168 static void spitz_pcmcia_pwr(struct device *scoop, unsigned short cpr, int nr)
170 /* Only need to override behaviour for slot 0 */
172 spitz_card_pwr_ctrl(SPITZ_PWR_CF, cpr);
174 write_scoop_reg(scoop, SCOOP_CPR, cpr);
177 static struct scoop_pcmcia_dev spitz_pcmcia_scoop[] = {
179 .dev = &spitzscoop_device.dev,
180 .irq = SPITZ_IRQ_GPIO_CF_IRQ,
181 .cd_irq = SPITZ_IRQ_GPIO_CF_CD,
182 .cd_irq_str = "PCMCIA0 CD",
184 .dev = &spitzscoop2_device.dev,
185 .irq = SPITZ_IRQ_GPIO_CF2_IRQ,
190 static struct scoop_pcmcia_config spitz_pcmcia_config = {
191 .devs = &spitz_pcmcia_scoop[0],
193 .pcmcia_init = spitz_pcmcia_init,
194 .power_ctrl = spitz_pcmcia_pwr,
197 EXPORT_SYMBOL(spitzscoop_device);
198 EXPORT_SYMBOL(spitzscoop2_device);
204 * Set the parent as the scoop device because a lot of SSP devices
205 * also use scoop functions and this makes the power up/down order
208 struct platform_device spitzssp_device = {
211 .parent = &spitzscoop_device.dev,
216 struct corgissp_machinfo spitz_ssp_machinfo = {
218 .cs_lcdcon = SPITZ_GPIO_LCDCON_CS,
219 .cs_ads7846 = SPITZ_GPIO_ADS7846_CS,
220 .cs_max1111 = SPITZ_GPIO_MAX1111_CS,
228 * Spitz Backlight Device
230 static void spitz_bl_kick_battery(void)
232 void (*kick_batt)(void);
234 kick_batt = symbol_get(sharpsl_battery_kick);
237 symbol_put(sharpsl_battery_kick);
241 static struct generic_bl_info spitz_bl_machinfo = {
243 .default_intensity = 0x1f,
245 .max_intensity = 0x2f,
246 .kick_battery = spitz_bl_kick_battery,
249 static struct platform_device spitzbl_device = {
250 .name = "generic-bl",
252 .platform_data = &spitz_bl_machinfo,
259 * Spitz Keyboard Device
261 static struct platform_device spitzkbd_device = {
262 .name = "spitz-keyboard",
270 static struct platform_device spitzled_device = {
276 * Spitz Touch Screen Device
279 static unsigned long (*get_hsync_invperiod)(struct device *dev);
281 static void inline sharpsl_wait_sync(int gpio)
283 while((GPLR(gpio) & GPIO_bit(gpio)) == 0);
284 while((GPLR(gpio) & GPIO_bit(gpio)) != 0);
287 static struct device *spitz_pxafb_dev;
289 static int is_pxafb_device(struct device * dev, void * data)
291 struct platform_device *pdev = container_of(dev, struct platform_device, dev);
293 return (strncmp(pdev->name, "pxa2xx-fb", 9) == 0);
296 static unsigned long spitz_get_hsync_invperiod(void)
299 if (!spitz_pxafb_dev) {
300 spitz_pxafb_dev = bus_find_device(&platform_bus_type, NULL, NULL, is_pxafb_device);
301 if (!spitz_pxafb_dev)
304 if (!get_hsync_invperiod)
305 get_hsync_invperiod = symbol_get(pxafb_get_hsync_time);
306 if (!get_hsync_invperiod)
310 return get_hsync_invperiod(spitz_pxafb_dev);
313 static void spitz_put_hsync(void)
315 put_device(spitz_pxafb_dev);
316 if (get_hsync_invperiod)
317 symbol_put(pxafb_get_hsync_time);
318 spitz_pxafb_dev = NULL;
319 get_hsync_invperiod = NULL;
322 static void spitz_wait_hsync(void)
324 sharpsl_wait_sync(SPITZ_GPIO_HSYNC);
327 static struct resource spitzts_resources[] = {
329 .start = SPITZ_IRQ_GPIO_TP_INT,
330 .end = SPITZ_IRQ_GPIO_TP_INT,
331 .flags = IORESOURCE_IRQ,
335 static struct corgits_machinfo spitz_ts_machinfo = {
336 .get_hsync_invperiod = spitz_get_hsync_invperiod,
337 .put_hsync = spitz_put_hsync,
338 .wait_hsync = spitz_wait_hsync,
341 static struct platform_device spitzts_device = {
344 .parent = &spitzssp_device.dev,
345 .platform_data = &spitz_ts_machinfo,
348 .num_resources = ARRAY_SIZE(spitzts_resources),
349 .resource = spitzts_resources,
356 * The card detect interrupt isn't debounced so we delay it by 250ms
357 * to give the card a chance to fully insert/eject.
360 static struct pxamci_platform_data spitz_mci_platform_data;
362 static int spitz_mci_init(struct device *dev, irq_handler_t spitz_detect_int, void *data)
366 /* setup GPIO for PXA27x MMC controller */
367 pxa_gpio_mode(GPIO32_MMCCLK_MD);
368 pxa_gpio_mode(GPIO112_MMCCMD_MD);
369 pxa_gpio_mode(GPIO92_MMCDAT0_MD);
370 pxa_gpio_mode(GPIO109_MMCDAT1_MD);
371 pxa_gpio_mode(GPIO110_MMCDAT2_MD);
372 pxa_gpio_mode(GPIO111_MMCDAT3_MD);
373 pxa_gpio_mode(SPITZ_GPIO_nSD_DETECT | GPIO_IN);
374 pxa_gpio_mode(SPITZ_GPIO_nSD_WP | GPIO_IN);
376 spitz_mci_platform_data.detect_delay = msecs_to_jiffies(250);
378 err = request_irq(SPITZ_IRQ_GPIO_nSD_DETECT, spitz_detect_int,
379 IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
380 "MMC card detect", data);
382 printk(KERN_ERR "spitz_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
387 static void spitz_mci_setpower(struct device *dev, unsigned int vdd)
389 struct pxamci_platform_data* p_d = dev->platform_data;
391 if (( 1 << vdd) & p_d->ocr_mask)
392 spitz_card_pwr_ctrl(SPITZ_PWR_SD, 0x0004);
394 spitz_card_pwr_ctrl(SPITZ_PWR_SD, 0x0000);
397 static int spitz_mci_get_ro(struct device *dev)
399 return GPLR(SPITZ_GPIO_nSD_WP) & GPIO_bit(SPITZ_GPIO_nSD_WP);
402 static void spitz_mci_exit(struct device *dev, void *data)
404 free_irq(SPITZ_IRQ_GPIO_nSD_DETECT, data);
407 static struct pxamci_platform_data spitz_mci_platform_data = {
408 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
409 .init = spitz_mci_init,
410 .get_ro = spitz_mci_get_ro,
411 .setpower = spitz_mci_setpower,
412 .exit = spitz_mci_exit,
419 static int spitz_ohci_init(struct device *dev)
421 /* Only Port 2 is connected */
422 pxa_gpio_mode(SPITZ_GPIO_USB_CONNECT | GPIO_IN);
423 pxa_gpio_mode(SPITZ_GPIO_USB_HOST | GPIO_OUT);
424 pxa_gpio_mode(SPITZ_GPIO_USB_DEVICE | GPIO_IN);
426 /* Setup USB Port 2 Output Control Register */
427 UP2OCR = UP2OCR_HXS | UP2OCR_HXOE | UP2OCR_DPPDE | UP2OCR_DMPDE;
429 GPSR(SPITZ_GPIO_USB_HOST) = GPIO_bit(SPITZ_GPIO_USB_HOST);
432 ~(UHCHR_SSEP1 | UHCHR_SSEP2 | UHCHR_SSEP3 | UHCHR_SSE);
434 UHCRHDA |= UHCRHDA_NOCP;
439 static struct pxaohci_platform_data spitz_ohci_platform_data = {
440 .port_mode = PMM_NPS_MODE,
441 .init = spitz_ohci_init,
449 static void spitz_irda_transceiver_mode(struct device *dev, int mode)
452 set_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_IR_ON);
454 reset_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_IR_ON);
455 pxa2xx_transceiver_mode(dev, mode);
458 #ifdef CONFIG_MACH_AKITA
459 static void akita_irda_transceiver_mode(struct device *dev, int mode)
462 akita_set_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_IR_ON);
464 akita_reset_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_IR_ON);
465 pxa2xx_transceiver_mode(dev, mode);
469 static struct pxaficp_platform_data spitz_ficp_platform_data = {
470 .transceiver_cap = IR_SIRMODE | IR_OFF,
471 .transceiver_mode = spitz_irda_transceiver_mode,
476 * Spitz PXA Framebuffer
479 static void spitz_lcd_power(int on, struct fb_var_screeninfo *var)
482 corgi_lcdtg_hw_init(var->xres);
484 corgi_lcdtg_suspend();
487 static struct pxafb_mode_info spitz_pxafb_modes[] = {
515 static struct pxafb_mach_info spitz_pxafb_info = {
516 .modes = &spitz_pxafb_modes[0],
519 .lccr0 = LCCR0_Color | LCCR0_Sngl | LCCR0_Act | LCCR0_LDDALT | LCCR0_OUC | LCCR0_CMDIM | LCCR0_RDSTM,
520 .lccr3 = LCCR3_PixRsEdg | LCCR3_OutEnH,
521 .pxafb_lcd_power = spitz_lcd_power,
525 static struct platform_device *devices[] __initdata = {
534 static void spitz_poweroff(void)
536 arm_machine_restart('g');
539 static void spitz_restart(char mode)
541 /* Bootloader magic for a reboot */
542 if((MSC0 & 0xffff0000) == 0x7ff00000)
543 MSC0 = (MSC0 & 0xffff) | 0x7ee00000;
548 static void __init common_init(void)
550 init_gpio_reset(SPITZ_GPIO_ON_RESET);
551 pm_power_off = spitz_poweroff;
552 arm_pm_restart = spitz_restart;
556 /* setup sleep mode values */
564 /* Stop 3.6MHz and drive HIGH to PCMCIA and CS */
567 corgi_ssp_set_machinfo(&spitz_ssp_machinfo);
569 pxa_gpio_mode(SPITZ_GPIO_HSYNC | GPIO_IN);
571 platform_add_devices(devices, ARRAY_SIZE(devices));
572 pxa_set_mci_info(&spitz_mci_platform_data);
573 pxa_set_ohci_info(&spitz_ohci_platform_data);
574 pxa_set_ficp_info(&spitz_ficp_platform_data);
575 set_pxa_fb_parent(&spitzssp_device.dev);
576 set_pxa_fb_info(&spitz_pxafb_info);
579 #if defined(CONFIG_MACH_SPITZ) || defined(CONFIG_MACH_BORZOI)
580 static void spitz_bl_set_intensity(int intensity)
582 if (intensity > 0x10)
585 /* Bits 0-4 are accessed via the SSP interface */
586 corgi_ssp_blduty_set(intensity & 0x1f);
588 /* Bit 5 is via SCOOP */
589 if (intensity & 0x0020)
590 reset_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_BACKLIGHT_CONT);
592 set_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_BACKLIGHT_CONT);
595 set_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_BACKLIGHT_ON);
597 reset_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_BACKLIGHT_ON);
600 static void __init spitz_init(void)
602 platform_scoop_config = &spitz_pcmcia_config;
604 spitz_bl_machinfo.set_bl_intensity = spitz_bl_set_intensity;
608 platform_device_register(&spitzscoop2_device);
612 #ifdef CONFIG_MACH_AKITA
616 struct platform_device akitaioexp_device = {
617 .name = "akita-ioexp",
621 EXPORT_SYMBOL_GPL(akitaioexp_device);
623 static void akita_bl_set_intensity(int intensity)
625 if (intensity > 0x10)
628 /* Bits 0-4 are accessed via the SSP interface */
629 corgi_ssp_blduty_set(intensity & 0x1f);
631 /* Bit 5 is via IO-Expander */
632 if (intensity & 0x0020)
633 akita_reset_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_BACKLIGHT_CONT);
635 akita_set_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_BACKLIGHT_CONT);
638 akita_set_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_BACKLIGHT_ON);
640 akita_reset_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_BACKLIGHT_ON);
643 static void __init akita_init(void)
645 spitz_ficp_platform_data.transceiver_mode = akita_irda_transceiver_mode;
647 /* We just pretend the second element of the array doesn't exist */
648 spitz_pcmcia_config.num_devs = 1;
649 platform_scoop_config = &spitz_pcmcia_config;
650 spitz_bl_machinfo.set_bl_intensity = akita_bl_set_intensity;
652 platform_device_register(&akitaioexp_device);
654 spitzscoop_device.dev.parent = &akitaioexp_device.dev;
659 static void __init fixup_spitz(struct machine_desc *desc,
660 struct tag *tags, char **cmdline, struct meminfo *mi)
662 sharpsl_save_param();
664 mi->bank[0].start = 0xa0000000;
665 mi->bank[0].node = 0;
666 mi->bank[0].size = (64*1024*1024);
669 #ifdef CONFIG_MACH_SPITZ
670 MACHINE_START(SPITZ, "SHARP Spitz")
671 .phys_io = 0x40000000,
672 .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
673 .fixup = fixup_spitz,
674 .map_io = pxa_map_io,
675 .init_irq = pxa27x_init_irq,
676 .init_machine = spitz_init,
681 #ifdef CONFIG_MACH_BORZOI
682 MACHINE_START(BORZOI, "SHARP Borzoi")
683 .phys_io = 0x40000000,
684 .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
685 .fixup = fixup_spitz,
686 .map_io = pxa_map_io,
687 .init_irq = pxa27x_init_irq,
688 .init_machine = spitz_init,
693 #ifdef CONFIG_MACH_AKITA
694 MACHINE_START(AKITA, "SHARP Akita")
695 .phys_io = 0x40000000,
696 .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
697 .fixup = fixup_spitz,
698 .map_io = pxa_map_io,
699 .init_irq = pxa27x_init_irq,
700 .init_machine = akita_init,