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/gpio.h>
23 #include <linux/leds.h>
24 #include <linux/mmc/host.h>
25 #include <linux/mtd/physmap.h>
27 #include <linux/backlight.h>
29 #include <linux/i2c.h>
30 #include <linux/i2c/pca953x.h>
31 #include <linux/spi/spi.h>
32 #include <linux/spi/ads7846.h>
33 #include <linux/spi/corgi_lcd.h>
34 #include <linux/mtd/sharpsl.h>
36 #include <asm/setup.h>
37 #include <asm/memory.h>
38 #include <asm/mach-types.h>
39 #include <mach/hardware.h>
41 #include <asm/system.h>
43 #include <asm/mach/arch.h>
44 #include <asm/mach/map.h>
45 #include <asm/mach/irq.h>
47 #include <mach/pxa27x.h>
48 #include <mach/pxa27x-udc.h>
49 #include <mach/reset.h>
51 #include <mach/irda.h>
53 #include <mach/ohci.h>
55 #include <mach/pxafb.h>
56 #include <mach/pxa2xx_spi.h>
57 #include <mach/spitz.h>
58 #include <mach/sharpsl.h>
60 #include <asm/mach/sharpsl_param.h>
61 #include <asm/hardware/scoop.h>
67 static unsigned long spitz_pin_config[] __initdata = {
69 GPIO78_nCS_2, /* SCOOP #2 */
70 GPIO79_nCS_3, /* NAND */
71 GPIO80_nCS_4, /* SCOOP #1 */
73 /* LCD - 16bpp Active TFT */
107 GPIO28_I2S_BITCLK_OUT,
109 GPIO30_I2S_SDATA_OUT,
121 GPIO9_GPIO, /* SPITZ_GPIO_nSD_DETECT */
122 GPIO81_GPIO, /* SPITZ_GPIO_nSD_WP */
123 GPIO41_GPIO, /* SPITZ_GPIO_USB_CONNECT */
124 GPIO37_GPIO, /* SPITZ_GPIO_USB_HOST */
125 GPIO35_GPIO, /* SPITZ_GPIO_USB_DEVICE */
126 GPIO22_GPIO, /* SPITZ_GPIO_HSYNC */
127 GPIO94_GPIO, /* SPITZ_GPIO_CF_CD */
128 GPIO105_GPIO, /* SPITZ_GPIO_CF_IRQ */
129 GPIO106_GPIO, /* SPITZ_GPIO_CF2_IRQ */
135 GPIO1_GPIO | WAKEUP_ON_EDGE_RISE,
139 * Spitz SCOOP Device #1
141 static struct resource spitz_scoop_resources[] = {
145 .flags = IORESOURCE_MEM,
149 static struct scoop_config spitz_scoop_setup = {
150 .io_dir = SPITZ_SCP_IO_DIR,
151 .io_out = SPITZ_SCP_IO_OUT,
152 .suspend_clr = SPITZ_SCP_SUS_CLR,
153 .suspend_set = SPITZ_SCP_SUS_SET,
154 .gpio_base = SPITZ_SCP_GPIO_BASE,
157 struct platform_device spitzscoop_device = {
158 .name = "sharp-scoop",
161 .platform_data = &spitz_scoop_setup,
163 .num_resources = ARRAY_SIZE(spitz_scoop_resources),
164 .resource = spitz_scoop_resources,
168 * Spitz SCOOP Device #2
170 static struct resource spitz_scoop2_resources[] = {
174 .flags = IORESOURCE_MEM,
178 static struct scoop_config spitz_scoop2_setup = {
179 .io_dir = SPITZ_SCP2_IO_DIR,
180 .io_out = SPITZ_SCP2_IO_OUT,
181 .suspend_clr = SPITZ_SCP2_SUS_CLR,
182 .suspend_set = SPITZ_SCP2_SUS_SET,
183 .gpio_base = SPITZ_SCP2_GPIO_BASE,
186 struct platform_device spitzscoop2_device = {
187 .name = "sharp-scoop",
190 .platform_data = &spitz_scoop2_setup,
192 .num_resources = ARRAY_SIZE(spitz_scoop2_resources),
193 .resource = spitz_scoop2_resources,
196 #define SPITZ_PWR_SD 0x01
197 #define SPITZ_PWR_CF 0x02
199 /* Power control is shared with between one of the CF slots and SD */
200 static void spitz_card_pwr_ctrl(int device, unsigned short new_cpr)
202 unsigned short cpr = read_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR);
204 if (new_cpr & 0x0007) {
205 gpio_set_value(SPITZ_GPIO_CF_POWER, 1);
206 if (!(cpr & 0x0002) && !(cpr & 0x0004))
208 if (device == SPITZ_PWR_CF)
210 if (device == SPITZ_PWR_SD)
212 write_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR, cpr | new_cpr);
214 if (device == SPITZ_PWR_CF)
216 if (device == SPITZ_PWR_SD)
218 if (!(cpr & 0x0002) && !(cpr & 0x0004)) {
219 write_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR, 0x0000);
221 gpio_set_value(SPITZ_GPIO_CF_POWER, 0);
223 write_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR, cpr | new_cpr);
228 static void spitz_pcmcia_pwr(struct device *scoop, unsigned short cpr, int nr)
230 /* Only need to override behaviour for slot 0 */
232 spitz_card_pwr_ctrl(SPITZ_PWR_CF, cpr);
234 write_scoop_reg(scoop, SCOOP_CPR, cpr);
237 static struct scoop_pcmcia_dev spitz_pcmcia_scoop[] = {
239 .dev = &spitzscoop_device.dev,
240 .irq = SPITZ_IRQ_GPIO_CF_IRQ,
241 .cd_irq = SPITZ_IRQ_GPIO_CF_CD,
242 .cd_irq_str = "PCMCIA0 CD",
244 .dev = &spitzscoop2_device.dev,
245 .irq = SPITZ_IRQ_GPIO_CF2_IRQ,
250 static struct scoop_pcmcia_config spitz_pcmcia_config = {
251 .devs = &spitz_pcmcia_scoop[0],
253 .power_ctrl = spitz_pcmcia_pwr,
256 EXPORT_SYMBOL(spitzscoop_device);
257 EXPORT_SYMBOL(spitzscoop2_device);
260 * Spitz Keyboard Device
262 static struct platform_device spitzkbd_device = {
263 .name = "spitz-keyboard",
271 static struct gpio_led spitz_gpio_leds[] = {
273 .name = "spitz:amber:charge",
274 .default_trigger = "sharpsl-charge",
275 .gpio = SPITZ_GPIO_LED_ORANGE,
278 .name = "spitz:green:hddactivity",
279 .default_trigger = "ide-disk",
280 .gpio = SPITZ_GPIO_LED_GREEN,
284 static struct gpio_led_platform_data spitz_gpio_leds_info = {
285 .leds = spitz_gpio_leds,
286 .num_leds = ARRAY_SIZE(spitz_gpio_leds),
289 static struct platform_device spitzled_device = {
293 .platform_data = &spitz_gpio_leds_info,
297 #if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MODULE)
298 static struct pxa2xx_spi_master spitz_spi_info = {
302 static void spitz_wait_for_hsync(void)
304 while (gpio_get_value(SPITZ_GPIO_HSYNC))
307 while (!gpio_get_value(SPITZ_GPIO_HSYNC))
311 static struct ads7846_platform_data spitz_ads7846_info = {
313 .vref_delay_usecs = 100,
316 .gpio_pendown = SPITZ_GPIO_TP_INT,
317 .wait_for_sync = spitz_wait_for_hsync,
320 static void spitz_ads7846_cs(u32 command)
322 gpio_set_value(SPITZ_GPIO_ADS7846_CS, !(command == PXA2XX_CS_ASSERT));
325 static struct pxa2xx_spi_chip spitz_ads7846_chip = {
326 .cs_control = spitz_ads7846_cs,
329 static void spitz_bl_kick_battery(void)
331 void (*kick_batt)(void);
333 kick_batt = symbol_get(sharpsl_battery_kick);
336 symbol_put(sharpsl_battery_kick);
340 static struct corgi_lcd_platform_data spitz_lcdcon_info = {
341 .init_mode = CORGI_LCD_MODE_VGA,
342 .max_intensity = 0x2f,
343 .default_intensity = 0x1f,
345 .gpio_backlight_cont = SPITZ_GPIO_BACKLIGHT_CONT,
346 .gpio_backlight_on = SPITZ_GPIO_BACKLIGHT_ON,
347 .kick_battery = spitz_bl_kick_battery,
350 static void spitz_lcdcon_cs(u32 command)
352 gpio_set_value(SPITZ_GPIO_LCDCON_CS, !(command == PXA2XX_CS_ASSERT));
355 static struct pxa2xx_spi_chip spitz_lcdcon_chip = {
356 .cs_control = spitz_lcdcon_cs,
359 static void spitz_max1111_cs(u32 command)
361 gpio_set_value(SPITZ_GPIO_MAX1111_CS, !(command == PXA2XX_CS_ASSERT));
364 static struct pxa2xx_spi_chip spitz_max1111_chip = {
365 .cs_control = spitz_max1111_cs,
368 static struct spi_board_info spitz_spi_devices[] = {
370 .modalias = "ads7846",
371 .max_speed_hz = 1200000,
374 .platform_data = &spitz_ads7846_info,
375 .controller_data= &spitz_ads7846_chip,
376 .irq = gpio_to_irq(SPITZ_GPIO_TP_INT),
378 .modalias = "corgi-lcd",
379 .max_speed_hz = 50000,
382 .platform_data = &spitz_lcdcon_info,
383 .controller_data= &spitz_lcdcon_chip,
385 .modalias = "max1111",
386 .max_speed_hz = 450000,
389 .controller_data= &spitz_max1111_chip,
393 static void __init spitz_init_spi(void)
397 err = gpio_request(SPITZ_GPIO_ADS7846_CS, "ADS7846_CS");
401 err = gpio_request(SPITZ_GPIO_LCDCON_CS, "LCDCON_CS");
405 err = gpio_request(SPITZ_GPIO_MAX1111_CS, "MAX1111_CS");
409 err = gpio_direction_output(SPITZ_GPIO_ADS7846_CS, 1);
412 err = gpio_direction_output(SPITZ_GPIO_LCDCON_CS, 1);
415 err = gpio_direction_output(SPITZ_GPIO_MAX1111_CS, 1);
419 if (machine_is_akita()) {
420 spitz_lcdcon_info.gpio_backlight_cont = AKITA_GPIO_BACKLIGHT_CONT;
421 spitz_lcdcon_info.gpio_backlight_on = AKITA_GPIO_BACKLIGHT_ON;
424 pxa2xx_set_spi_info(2, &spitz_spi_info);
425 spi_register_board_info(ARRAY_AND_SIZE(spitz_spi_devices));
429 gpio_free(SPITZ_GPIO_MAX1111_CS);
431 gpio_free(SPITZ_GPIO_LCDCON_CS);
433 gpio_free(SPITZ_GPIO_ADS7846_CS);
436 static inline void spitz_init_spi(void) {}
442 * The card detect interrupt isn't debounced so we delay it by 250ms
443 * to give the card a chance to fully insert/eject.
446 static struct pxamci_platform_data spitz_mci_platform_data;
448 static int spitz_mci_init(struct device *dev, irq_handler_t spitz_detect_int, void *data)
452 err = gpio_request(SPITZ_GPIO_nSD_DETECT, "nSD_DETECT");
456 err = gpio_request(SPITZ_GPIO_nSD_WP, "nSD_WP");
460 gpio_direction_input(SPITZ_GPIO_nSD_DETECT);
461 gpio_direction_input(SPITZ_GPIO_nSD_WP);
463 spitz_mci_platform_data.detect_delay = msecs_to_jiffies(250);
465 err = request_irq(SPITZ_IRQ_GPIO_nSD_DETECT, spitz_detect_int,
466 IRQF_DISABLED | IRQF_TRIGGER_RISING |
467 IRQF_TRIGGER_FALLING,
468 "MMC card detect", data);
470 pr_err("%s: MMC/SD: can't request MMC card detect IRQ\n",
477 gpio_free(SPITZ_GPIO_nSD_WP);
479 gpio_free(SPITZ_GPIO_nSD_DETECT);
484 static void spitz_mci_setpower(struct device *dev, unsigned int vdd)
486 struct pxamci_platform_data* p_d = dev->platform_data;
488 if (( 1 << vdd) & p_d->ocr_mask)
489 spitz_card_pwr_ctrl(SPITZ_PWR_SD, 0x0004);
491 spitz_card_pwr_ctrl(SPITZ_PWR_SD, 0x0000);
494 static int spitz_mci_get_ro(struct device *dev)
496 return gpio_get_value(SPITZ_GPIO_nSD_WP);
499 static void spitz_mci_exit(struct device *dev, void *data)
501 free_irq(SPITZ_IRQ_GPIO_nSD_DETECT, data);
502 gpio_free(SPITZ_GPIO_nSD_WP);
503 gpio_free(SPITZ_GPIO_nSD_DETECT);
506 static struct pxamci_platform_data spitz_mci_platform_data = {
507 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
508 .init = spitz_mci_init,
509 .get_ro = spitz_mci_get_ro,
510 .setpower = spitz_mci_setpower,
511 .exit = spitz_mci_exit,
518 static int spitz_ohci_init(struct device *dev)
522 err = gpio_request(SPITZ_GPIO_USB_HOST, "USB_HOST");
526 /* Only Port 2 is connected
527 * Setup USB Port 2 Output Control Register
529 UP2OCR = UP2OCR_HXS | UP2OCR_HXOE | UP2OCR_DPPDE | UP2OCR_DMPDE;
531 return gpio_direction_output(SPITZ_GPIO_USB_HOST, 1);
534 static void spitz_ohci_exit(struct device *dev)
536 gpio_free(SPITZ_GPIO_USB_HOST);
539 static struct pxaohci_platform_data spitz_ohci_platform_data = {
540 .port_mode = PMM_NPS_MODE,
541 .init = spitz_ohci_init,
542 .exit = spitz_ohci_exit,
543 .flags = ENABLE_PORT_ALL | NO_OC_PROTECTION,
551 static int spitz_irda_startup(struct device *dev)
555 rc = gpio_request(SPITZ_GPIO_IR_ON, "IrDA on");
559 rc = gpio_direction_output(SPITZ_GPIO_IR_ON, 1);
566 gpio_free(SPITZ_GPIO_IR_ON);
571 static void spitz_irda_shutdown(struct device *dev)
573 gpio_free(SPITZ_GPIO_IR_ON);
576 static void spitz_irda_transceiver_mode(struct device *dev, int mode)
578 gpio_set_value(SPITZ_GPIO_IR_ON, mode & IR_OFF);
579 pxa2xx_transceiver_mode(dev, mode);
582 #ifdef CONFIG_MACH_AKITA
583 static void akita_irda_transceiver_mode(struct device *dev, int mode)
585 gpio_set_value(AKITA_GPIO_IR_ON, mode & IR_OFF);
586 pxa2xx_transceiver_mode(dev, mode);
590 static struct pxaficp_platform_data spitz_ficp_platform_data = {
591 .transceiver_cap = IR_SIRMODE | IR_OFF,
592 .transceiver_mode = spitz_irda_transceiver_mode,
593 .startup = spitz_irda_startup,
594 .shutdown = spitz_irda_shutdown,
599 * Spitz PXA Framebuffer
602 static struct pxafb_mode_info spitz_pxafb_modes[] = {
630 static struct pxafb_mach_info spitz_pxafb_info = {
631 .modes = &spitz_pxafb_modes[0],
634 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_ALTERNATE_MAPPING,
637 static struct mtd_partition sharpsl_nand_partitions[] = {
639 .name = "System Area",
641 .size = 7 * 1024 * 1024,
644 .name = "Root Filesystem",
645 .offset = 7 * 1024 * 1024,
648 .name = "Home Filesystem",
649 .offset = MTDPART_OFS_APPEND,
650 .size = MTDPART_SIZ_FULL,
654 static uint8_t scan_ff_pattern[] = { 0xff, 0xff };
656 static struct nand_bbt_descr sharpsl_bbt = {
660 .pattern = scan_ff_pattern
663 static struct sharpsl_nand_platform_data sharpsl_nand_platform_data = {
664 .badblock_pattern = &sharpsl_bbt,
665 .partitions = sharpsl_nand_partitions,
666 .nr_partitions = ARRAY_SIZE(sharpsl_nand_partitions),
669 static struct resource sharpsl_nand_resources[] = {
673 .flags = IORESOURCE_MEM,
677 static struct platform_device sharpsl_nand_device = {
678 .name = "sharpsl-nand",
680 .resource = sharpsl_nand_resources,
681 .num_resources = ARRAY_SIZE(sharpsl_nand_resources),
682 .dev.platform_data = &sharpsl_nand_platform_data,
686 static struct mtd_partition sharpsl_rom_parts[] = {
688 .name ="Boot PROM Filesystem",
689 .offset = 0x00140000,
690 .size = MTDPART_SIZ_FULL,
694 static struct physmap_flash_data sharpsl_rom_data = {
696 .nr_parts = ARRAY_SIZE(sharpsl_rom_parts),
697 .parts = sharpsl_rom_parts,
700 static struct resource sharpsl_rom_resources[] = {
704 .flags = IORESOURCE_MEM,
708 static struct platform_device sharpsl_rom_device = {
709 .name = "physmap-flash",
711 .resource = sharpsl_rom_resources,
712 .num_resources = ARRAY_SIZE(sharpsl_rom_resources),
713 .dev.platform_data = &sharpsl_rom_data,
716 static struct platform_device *devices[] __initdata = {
720 &sharpsl_nand_device,
724 static void spitz_poweroff(void)
726 arm_machine_restart('g', NULL);
729 static void spitz_restart(char mode, const char *cmd)
731 /* Bootloader magic for a reboot */
732 if((MSC0 & 0xffff0000) == 0x7ff00000)
733 MSC0 = (MSC0 & 0xffff) | 0x7ee00000;
738 static void __init common_init(void)
740 init_gpio_reset(SPITZ_GPIO_ON_RESET, 1, 0);
741 pm_power_off = spitz_poweroff;
742 arm_pm_restart = spitz_restart;
744 if (machine_is_spitz()) {
745 sharpsl_nand_partitions[1].size = 5 * 1024 * 1024;
746 } else if (machine_is_akita()) {
747 sharpsl_nand_partitions[1].size = 58 * 1024 * 1024;
748 } else if (machine_is_borzoi()) {
749 sharpsl_nand_partitions[1].size = 32 * 1024 * 1024;
754 /* Stop 3.6MHz and drive HIGH to PCMCIA and CS */
757 pxa2xx_mfp_config(ARRAY_AND_SIZE(spitz_pin_config));
761 platform_add_devices(devices, ARRAY_SIZE(devices));
762 pxa_set_mci_info(&spitz_mci_platform_data);
763 pxa_set_ohci_info(&spitz_ohci_platform_data);
764 pxa_set_ficp_info(&spitz_ficp_platform_data);
765 set_pxa_fb_info(&spitz_pxafb_info);
766 pxa_set_i2c_info(NULL);
769 #if defined(CONFIG_MACH_SPITZ) || defined(CONFIG_MACH_BORZOI)
770 static void __init spitz_init(void)
772 platform_scoop_config = &spitz_pcmcia_config;
776 platform_device_register(&spitzscoop2_device);
780 #ifdef CONFIG_MACH_AKITA
784 static struct pca953x_platform_data akita_ioexp = {
785 .gpio_base = AKITA_IOEXP_GPIO_BASE,
788 static struct i2c_board_info akita_i2c_board_info[] = {
792 .platform_data = &akita_ioexp,
796 static struct nand_bbt_descr sharpsl_akita_bbt = {
800 .pattern = scan_ff_pattern
803 static struct nand_ecclayout akita_oobinfo = {
806 0x5, 0x1, 0x2, 0x3, 0x6, 0x7, 0x15, 0x11,
807 0x12, 0x13, 0x16, 0x17, 0x25, 0x21, 0x22, 0x23,
808 0x26, 0x27, 0x35, 0x31, 0x32, 0x33, 0x36, 0x37},
809 .oobfree = {{0x08, 0x09}}
812 static void __init akita_init(void)
814 spitz_ficp_platform_data.transceiver_mode = akita_irda_transceiver_mode;
816 sharpsl_nand_platform_data.badblock_pattern = &sharpsl_akita_bbt;
817 sharpsl_nand_platform_data.ecc_layout = &akita_oobinfo;
819 /* We just pretend the second element of the array doesn't exist */
820 spitz_pcmcia_config.num_devs = 1;
821 platform_scoop_config = &spitz_pcmcia_config;
823 i2c_register_board_info(0, ARRAY_AND_SIZE(akita_i2c_board_info));
829 static void __init fixup_spitz(struct machine_desc *desc,
830 struct tag *tags, char **cmdline, struct meminfo *mi)
832 sharpsl_save_param();
834 mi->bank[0].start = 0xa0000000;
835 mi->bank[0].node = 0;
836 mi->bank[0].size = (64*1024*1024);
839 #ifdef CONFIG_MACH_SPITZ
840 MACHINE_START(SPITZ, "SHARP Spitz")
841 .phys_io = 0x40000000,
842 .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
843 .fixup = fixup_spitz,
844 .map_io = pxa_map_io,
845 .init_irq = pxa27x_init_irq,
846 .init_machine = spitz_init,
851 #ifdef CONFIG_MACH_BORZOI
852 MACHINE_START(BORZOI, "SHARP Borzoi")
853 .phys_io = 0x40000000,
854 .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
855 .fixup = fixup_spitz,
856 .map_io = pxa_map_io,
857 .init_irq = pxa27x_init_irq,
858 .init_machine = spitz_init,
863 #ifdef CONFIG_MACH_AKITA
864 MACHINE_START(AKITA, "SHARP Akita")
865 .phys_io = 0x40000000,
866 .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
867 .fixup = fixup_spitz,
868 .map_io = pxa_map_io,
869 .init_irq = pxa27x_init_irq,
870 .init_machine = akita_init,