/* * Support for Sharp SL-Cxx00 Series of PDAs * Models: SL-C3000 (Spitz), SL-C1000 (Akita) and SL-C3100 (Borzoi) * * Copyright (c) 2005 Richard Purdie * * Based on Sharp's 2.4 kernel patches/lubbock.c * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * */ #include <linux/kernel.h> #include <linux/init.h> #include <linux/platform_device.h> #include <linux/delay.h> #include <linux/major.h> #include <linux/fs.h> #include <linux/interrupt.h> #include <linux/gpio.h> #include <linux/leds.h> #include <linux/mmc/host.h> #include <linux/pm.h> #include <linux/backlight.h> #include <linux/io.h> #include <linux/i2c.h> #include <linux/i2c/pca953x.h> #include <linux/spi/spi.h> #include <linux/spi/ads7846.h> #include <linux/spi/corgi_lcd.h> #include <asm/setup.h> #include <asm/memory.h> #include <asm/mach-types.h> #include <mach/hardware.h> #include <asm/irq.h> #include <asm/system.h> #include <asm/mach/arch.h> #include <asm/mach/map.h> #include <asm/mach/irq.h> #include <mach/pxa-regs.h> #include <mach/pxa2xx-regs.h> #include <mach/mfp-pxa27x.h> #include <mach/pxa27x-udc.h> #include <mach/reset.h> #include <mach/i2c.h> #include <mach/irda.h> #include <mach/mmc.h> #include <mach/ohci.h> #include <mach/udc.h> #include <mach/pxafb.h> #include <mach/pxa2xx_spi.h> #include <mach/spitz.h> #include <mach/sharpsl.h> #include <asm/mach/sharpsl_param.h> #include <asm/hardware/scoop.h> #include "generic.h" #include "devices.h" #include "sharpsl.h" static unsigned long spitz_pin_config[] __initdata = { /* Chip Selects */ GPIO78_nCS_2, /* SCOOP #2 */ GPIO80_nCS_4, /* SCOOP #1 */ /* LCD - 16bpp Active TFT */ GPIO58_LCD_LDD_0, GPIO59_LCD_LDD_1, GPIO60_LCD_LDD_2, GPIO61_LCD_LDD_3, GPIO62_LCD_LDD_4, GPIO63_LCD_LDD_5, GPIO64_LCD_LDD_6, GPIO65_LCD_LDD_7, GPIO66_LCD_LDD_8, GPIO67_LCD_LDD_9, GPIO68_LCD_LDD_10, GPIO69_LCD_LDD_11, GPIO70_LCD_LDD_12, GPIO71_LCD_LDD_13, GPIO72_LCD_LDD_14, GPIO73_LCD_LDD_15, GPIO74_LCD_FCLK, GPIO75_LCD_LCLK, GPIO76_LCD_PCLK, /* PC Card */ GPIO48_nPOE, GPIO49_nPWE, GPIO50_nPIOR, GPIO51_nPIOW, GPIO85_nPCE_1, GPIO54_nPCE_2, GPIO79_PSKTSEL, GPIO55_nPREG, GPIO56_nPWAIT, GPIO57_nIOIS16, /* MMC */ GPIO32_MMC_CLK, GPIO112_MMC_CMD, GPIO92_MMC_DAT_0, GPIO109_MMC_DAT_1, GPIO110_MMC_DAT_2, GPIO111_MMC_DAT_3, /* GPIOs */ GPIO9_GPIO, /* SPITZ_GPIO_nSD_DETECT */ GPIO81_GPIO, /* SPITZ_GPIO_nSD_WP */ GPIO41_GPIO, /* SPITZ_GPIO_USB_CONNECT */ GPIO37_GPIO, /* SPITZ_GPIO_USB_HOST */ GPIO35_GPIO, /* SPITZ_GPIO_USB_DEVICE */ GPIO22_GPIO, /* SPITZ_GPIO_HSYNC */ GPIO94_GPIO, /* SPITZ_GPIO_CF_CD */ GPIO105_GPIO, /* SPITZ_GPIO_CF_IRQ */ GPIO106_GPIO, /* SPITZ_GPIO_CF2_IRQ */ GPIO1_GPIO | WAKEUP_ON_EDGE_RISE, }; /* * Spitz SCOOP Device #1 */ static struct resource spitz_scoop_resources[] = { [0] = { .start = 0x10800000, .end = 0x10800fff, .flags = IORESOURCE_MEM, }, }; static struct scoop_config spitz_scoop_setup = { .io_dir = SPITZ_SCP_IO_DIR, .io_out = SPITZ_SCP_IO_OUT, .suspend_clr = SPITZ_SCP_SUS_CLR, .suspend_set = SPITZ_SCP_SUS_SET, .gpio_base = SPITZ_SCP_GPIO_BASE, }; struct platform_device spitzscoop_device = { .name = "sharp-scoop", .id = 0, .dev = { .platform_data = &spitz_scoop_setup, }, .num_resources = ARRAY_SIZE(spitz_scoop_resources), .resource = spitz_scoop_resources, }; /* * Spitz SCOOP Device #2 */ static struct resource spitz_scoop2_resources[] = { [0] = { .start = 0x08800040, .end = 0x08800fff, .flags = IORESOURCE_MEM, }, }; static struct scoop_config spitz_scoop2_setup = { .io_dir = SPITZ_SCP2_IO_DIR, .io_out = SPITZ_SCP2_IO_OUT, .suspend_clr = SPITZ_SCP2_SUS_CLR, .suspend_set = SPITZ_SCP2_SUS_SET, .gpio_base = SPITZ_SCP2_GPIO_BASE, }; struct platform_device spitzscoop2_device = { .name = "sharp-scoop", .id = 1, .dev = { .platform_data = &spitz_scoop2_setup, }, .num_resources = ARRAY_SIZE(spitz_scoop2_resources), .resource = spitz_scoop2_resources, }; #define SPITZ_PWR_SD 0x01 #define SPITZ_PWR_CF 0x02 /* Power control is shared with between one of the CF slots and SD */ static void spitz_card_pwr_ctrl(int device, unsigned short new_cpr) { unsigned short cpr = read_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR); if (new_cpr & 0x0007) { gpio_set_value(SPITZ_GPIO_CF_POWER, 1); if (!(cpr & 0x0002) && !(cpr & 0x0004)) mdelay(5); if (device == SPITZ_PWR_CF) cpr |= 0x0002; if (device == SPITZ_PWR_SD) cpr |= 0x0004; write_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR, cpr | new_cpr); } else { if (device == SPITZ_PWR_CF) cpr &= ~0x0002; if (device == SPITZ_PWR_SD) cpr &= ~0x0004; if (!(cpr & 0x0002) && !(cpr & 0x0004)) { write_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR, 0x0000); mdelay(1); gpio_set_value(SPITZ_GPIO_CF_POWER, 0); } else { write_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR, cpr | new_cpr); } } } static void spitz_pcmcia_pwr(struct device *scoop, unsigned short cpr, int nr) { /* Only need to override behaviour for slot 0 */ if (nr == 0) spitz_card_pwr_ctrl(SPITZ_PWR_CF, cpr); else write_scoop_reg(scoop, SCOOP_CPR, cpr); } static struct scoop_pcmcia_dev spitz_pcmcia_scoop[] = { { .dev = &spitzscoop_device.dev, .irq = SPITZ_IRQ_GPIO_CF_IRQ, .cd_irq = SPITZ_IRQ_GPIO_CF_CD, .cd_irq_str = "PCMCIA0 CD", },{ .dev = &spitzscoop2_device.dev, .irq = SPITZ_IRQ_GPIO_CF2_IRQ, .cd_irq = -1, }, }; static struct scoop_pcmcia_config spitz_pcmcia_config = { .devs = &spitz_pcmcia_scoop[0], .num_devs = 2, .power_ctrl = spitz_pcmcia_pwr, }; EXPORT_SYMBOL(spitzscoop_device); EXPORT_SYMBOL(spitzscoop2_device); /* * Spitz Keyboard Device */ static struct platform_device spitzkbd_device = { .name = "spitz-keyboard", .id = -1, }; /* * Spitz LEDs */ static struct gpio_led spitz_gpio_leds[] = { { .name = "spitz:amber:charge", .default_trigger = "sharpsl-charge", .gpio = SPITZ_GPIO_LED_ORANGE, }, { .name = "spitz:green:hddactivity", .default_trigger = "ide-disk", .gpio = SPITZ_GPIO_LED_GREEN, }, }; static struct gpio_led_platform_data spitz_gpio_leds_info = { .leds = spitz_gpio_leds, .num_leds = ARRAY_SIZE(spitz_gpio_leds), }; static struct platform_device spitzled_device = { .name = "leds-gpio", .id = -1, .dev = { .platform_data = &spitz_gpio_leds_info, }, }; #if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MODULE) static struct pxa2xx_spi_master spitz_spi_info = { .num_chipselect = 3, }; static struct ads7846_platform_data spitz_ads7846_info = { .model = 7846, .vref_delay_usecs = 100, .x_plate_ohms = 419, .y_plate_ohms = 486, .gpio_pendown = SPITZ_GPIO_TP_INT, }; static void spitz_ads7846_cs(u32 command) { gpio_set_value(SPITZ_GPIO_ADS7846_CS, !(command == PXA2XX_CS_ASSERT)); } static struct pxa2xx_spi_chip spitz_ads7846_chip = { .cs_control = spitz_ads7846_cs, }; static void spitz_bl_kick_battery(void) { void (*kick_batt)(void); kick_batt = symbol_get(sharpsl_battery_kick); if (kick_batt) { kick_batt(); symbol_put(sharpsl_battery_kick); } } static struct corgi_lcd_platform_data spitz_lcdcon_info = { .init_mode = CORGI_LCD_MODE_VGA, .max_intensity = 0x2f, .default_intensity = 0x1f, .limit_mask = 0x0b, .gpio_backlight_cont = SPITZ_GPIO_BACKLIGHT_CONT, .gpio_backlight_on = SPITZ_GPIO_BACKLIGHT_ON, .kick_battery = spitz_bl_kick_battery, }; static void spitz_lcdcon_cs(u32 command) { gpio_set_value(SPITZ_GPIO_LCDCON_CS, !(command == PXA2XX_CS_ASSERT)); } static struct pxa2xx_spi_chip spitz_lcdcon_chip = { .cs_control = spitz_lcdcon_cs, }; static void spitz_max1111_cs(u32 command) { gpio_set_value(SPITZ_GPIO_MAX1111_CS, !(command == PXA2XX_CS_ASSERT)); } static struct pxa2xx_spi_chip spitz_max1111_chip = { .cs_control = spitz_max1111_cs, }; static struct spi_board_info spitz_spi_devices[] = { { .modalias = "ads7846", .max_speed_hz = 1200000, .bus_num = 2, .chip_select = 0, .platform_data = &spitz_ads7846_info, .controller_data= &spitz_ads7846_chip, .irq = gpio_to_irq(SPITZ_GPIO_TP_INT), }, { .modalias = "corgi-lcd", .max_speed_hz = 50000, .bus_num = 2, .chip_select = 1, .platform_data = &spitz_lcdcon_info, .controller_data= &spitz_lcdcon_chip, }, { .modalias = "max1111", .max_speed_hz = 450000, .bus_num = 2, .chip_select = 2, .controller_data= &spitz_max1111_chip, }, }; static void __init spitz_init_spi(void) { int err; err = gpio_request(SPITZ_GPIO_ADS7846_CS, "ADS7846_CS"); if (err) return; err = gpio_request(SPITZ_GPIO_LCDCON_CS, "LCDCON_CS"); if (err) goto err_free_1; err = gpio_request(SPITZ_GPIO_MAX1111_CS, "MAX1111_CS"); if (err) goto err_free_2; if (machine_is_akita()) { spitz_lcdcon_info.gpio_backlight_cont = AKITA_GPIO_BACKLIGHT_CONT; spitz_lcdcon_info.gpio_backlight_on = AKITA_GPIO_BACKLIGHT_ON; } pxa2xx_set_spi_info(2, &spitz_spi_info); spi_register_board_info(ARRAY_AND_SIZE(spitz_spi_devices)); return; err_free_2: gpio_free(SPITZ_GPIO_LCDCON_CS); err_free_1: gpio_free(SPITZ_GPIO_ADS7846_CS); } #else static inline void spitz_init_spi(void) {} #endif /* * MMC/SD Device * * The card detect interrupt isn't debounced so we delay it by 250ms * to give the card a chance to fully insert/eject. */ static struct pxamci_platform_data spitz_mci_platform_data; static int spitz_mci_init(struct device *dev, irq_handler_t spitz_detect_int, void *data) { int err; err = gpio_request(SPITZ_GPIO_nSD_DETECT, "nSD_DETECT"); if (err) goto err_out; err = gpio_request(SPITZ_GPIO_nSD_WP, "nSD_WP"); if (err) goto err_free_1; gpio_direction_input(SPITZ_GPIO_nSD_DETECT); gpio_direction_input(SPITZ_GPIO_nSD_WP); spitz_mci_platform_data.detect_delay = msecs_to_jiffies(250); err = request_irq(SPITZ_IRQ_GPIO_nSD_DETECT, spitz_detect_int, IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, "MMC card detect", data); if (err) { pr_err("%s: MMC/SD: can't request MMC card detect IRQ\n", __func__); goto err_free_2; } return 0; err_free_2: gpio_free(SPITZ_GPIO_nSD_WP); err_free_1: gpio_free(SPITZ_GPIO_nSD_DETECT); err_out: return err; } static void spitz_mci_setpower(struct device *dev, unsigned int vdd) { struct pxamci_platform_data* p_d = dev->platform_data; if (( 1 << vdd) & p_d->ocr_mask) spitz_card_pwr_ctrl(SPITZ_PWR_SD, 0x0004); else spitz_card_pwr_ctrl(SPITZ_PWR_SD, 0x0000); } static int spitz_mci_get_ro(struct device *dev) { return gpio_get_value(SPITZ_GPIO_nSD_WP); } static void spitz_mci_exit(struct device *dev, void *data) { free_irq(SPITZ_IRQ_GPIO_nSD_DETECT, data); gpio_free(SPITZ_GPIO_nSD_WP); gpio_free(SPITZ_GPIO_nSD_DETECT); } static struct pxamci_platform_data spitz_mci_platform_data = { .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34, .init = spitz_mci_init, .get_ro = spitz_mci_get_ro, .setpower = spitz_mci_setpower, .exit = spitz_mci_exit, }; /* * USB Host (OHCI) */ static int spitz_ohci_init(struct device *dev) { int err; err = gpio_request(SPITZ_GPIO_USB_HOST, "USB_HOST"); if (err) return err; /* Only Port 2 is connected * Setup USB Port 2 Output Control Register */ UP2OCR = UP2OCR_HXS | UP2OCR_HXOE | UP2OCR_DPPDE | UP2OCR_DMPDE; return gpio_direction_output(SPITZ_GPIO_USB_HOST, 1); } static struct pxaohci_platform_data spitz_ohci_platform_data = { .port_mode = PMM_NPS_MODE, .init = spitz_ohci_init, .flags = ENABLE_PORT_ALL | NO_OC_PROTECTION, .power_budget = 150, }; /* * Irda */ static int spitz_irda_startup(struct device *dev) { int rc; rc = gpio_request(SPITZ_GPIO_IR_ON, "IrDA on"); if (rc) goto err; rc = gpio_direction_output(SPITZ_GPIO_IR_ON, 1); if (rc) goto err_dir; return 0; err_dir: gpio_free(SPITZ_GPIO_IR_ON); err: return rc; } static void spitz_irda_shutdown(struct device *dev) { gpio_free(SPITZ_GPIO_IR_ON); } static void spitz_irda_transceiver_mode(struct device *dev, int mode) { gpio_set_value(SPITZ_GPIO_IR_ON, mode & IR_OFF); pxa2xx_transceiver_mode(dev, mode); } #ifdef CONFIG_MACH_AKITA static void akita_irda_transceiver_mode(struct device *dev, int mode) { gpio_set_value(AKITA_GPIO_IR_ON, mode & IR_OFF); pxa2xx_transceiver_mode(dev, mode); } #endif static struct pxaficp_platform_data spitz_ficp_platform_data = { .transceiver_cap = IR_SIRMODE | IR_OFF, .transceiver_mode = spitz_irda_transceiver_mode, .startup = spitz_irda_startup, .shutdown = spitz_irda_shutdown, }; /* * Spitz PXA Framebuffer */ static struct pxafb_mode_info spitz_pxafb_modes[] = { { .pixclock = 19231, .xres = 480, .yres = 640, .bpp = 16, .hsync_len = 40, .left_margin = 46, .right_margin = 125, .vsync_len = 3, .upper_margin = 1, .lower_margin = 0, .sync = 0, },{ .pixclock = 134617, .xres = 240, .yres = 320, .bpp = 16, .hsync_len = 20, .left_margin = 20, .right_margin = 46, .vsync_len = 2, .upper_margin = 1, .lower_margin = 0, .sync = 0, }, }; static struct pxafb_mach_info spitz_pxafb_info = { .modes = &spitz_pxafb_modes[0], .num_modes = 2, .fixed_modes = 1, .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_ALTERNATE_MAPPING, }; static struct platform_device *devices[] __initdata = { &spitzscoop_device, &spitzkbd_device, &spitzled_device, }; static void spitz_poweroff(void) { arm_machine_restart('g'); } static void spitz_restart(char mode) { /* Bootloader magic for a reboot */ if((MSC0 & 0xffff0000) == 0x7ff00000) MSC0 = (MSC0 & 0xffff) | 0x7ee00000; spitz_poweroff(); } static void __init common_init(void) { init_gpio_reset(SPITZ_GPIO_ON_RESET, 1); pm_power_off = spitz_poweroff; arm_pm_restart = spitz_restart; PMCR = 0x00; /* Stop 3.6MHz and drive HIGH to PCMCIA and CS */ PCFR |= PCFR_OPDE; pxa2xx_mfp_config(ARRAY_AND_SIZE(spitz_pin_config)); spitz_init_spi(); platform_add_devices(devices, ARRAY_SIZE(devices)); pxa_set_mci_info(&spitz_mci_platform_data); pxa_set_ohci_info(&spitz_ohci_platform_data); pxa_set_ficp_info(&spitz_ficp_platform_data); set_pxa_fb_info(&spitz_pxafb_info); pxa_set_i2c_info(NULL); } #if defined(CONFIG_MACH_SPITZ) || defined(CONFIG_MACH_BORZOI) static void __init spitz_init(void) { platform_scoop_config = &spitz_pcmcia_config; common_init(); platform_device_register(&spitzscoop2_device); } #endif #ifdef CONFIG_MACH_AKITA /* * Akita IO Expander */ static struct pca953x_platform_data akita_ioexp = { .gpio_base = AKITA_IOEXP_GPIO_BASE, }; static struct i2c_board_info akita_i2c_board_info[] = { { .type = "max7310", .addr = 0x18, .platform_data = &akita_ioexp, }, }; static void __init akita_init(void) { spitz_ficp_platform_data.transceiver_mode = akita_irda_transceiver_mode; /* We just pretend the second element of the array doesn't exist */ spitz_pcmcia_config.num_devs = 1; platform_scoop_config = &spitz_pcmcia_config; pxa_set_i2c_info(NULL); i2c_register_board_info(0, ARRAY_AND_SIZE(akita_i2c_board_info)); common_init(); } #endif static void __init fixup_spitz(struct machine_desc *desc, struct tag *tags, char **cmdline, struct meminfo *mi) { sharpsl_save_param(); mi->nr_banks = 1; mi->bank[0].start = 0xa0000000; mi->bank[0].node = 0; mi->bank[0].size = (64*1024*1024); } #ifdef CONFIG_MACH_SPITZ MACHINE_START(SPITZ, "SHARP Spitz") .phys_io = 0x40000000, .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc, .fixup = fixup_spitz, .map_io = pxa_map_io, .init_irq = pxa27x_init_irq, .init_machine = spitz_init, .timer = &pxa_timer, MACHINE_END #endif #ifdef CONFIG_MACH_BORZOI MACHINE_START(BORZOI, "SHARP Borzoi") .phys_io = 0x40000000, .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc, .fixup = fixup_spitz, .map_io = pxa_map_io, .init_irq = pxa27x_init_irq, .init_machine = spitz_init, .timer = &pxa_timer, MACHINE_END #endif #ifdef CONFIG_MACH_AKITA MACHINE_START(AKITA, "SHARP Akita") .phys_io = 0x40000000, .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc, .fixup = fixup_spitz, .map_io = pxa_map_io, .init_irq = pxa27x_init_irq, .init_machine = akita_init, .timer = &pxa_timer, MACHINE_END #endif