/* * Support for Sharp SL-C7xx PDAs * Models: SL-C700 (Corgi), SL-C750 (Shepherd), SL-C760 (Husky) * * Copyright (c) 2004-2005 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/major.h> #include <linux/fs.h> #include <linux/interrupt.h> #include <linux/mmc/host.h> #include <linux/mtd/physmap.h> #include <linux/pm.h> #include <linux/gpio.h> #include <linux/backlight.h> #include <linux/i2c.h> #include <linux/io.h> #include <linux/spi/spi.h> #include <linux/spi/ads7846.h> #include <linux/spi/corgi_lcd.h> #include <linux/mtd/sharpsl.h> #include <video/w100fb.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/pxa25x.h> #include <plat/i2c.h> #include <mach/irda.h> #include <mach/mmc.h> #include <mach/udc.h> #include <mach/pxa2xx_spi.h> #include <mach/corgi.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 corgi_pin_config[] __initdata = { /* Static Memory I/O */ GPIO78_nCS_2, /* w100fb */ GPIO80_nCS_4, /* scoop */ /* SSP1 */ GPIO23_SSP1_SCLK, GPIO25_SSP1_TXD, GPIO26_SSP1_RXD, GPIO24_GPIO, /* CORGI_GPIO_ADS7846_CS - SFRM as chip select */ /* I2S */ GPIO28_I2S_BITCLK_OUT, GPIO29_I2S_SDATA_IN, GPIO30_I2S_SDATA_OUT, GPIO31_I2S_SYNC, GPIO32_I2S_SYSCLK, /* Infra-Red */ GPIO47_FICP_TXD, GPIO46_FICP_RXD, /* FFUART */ GPIO40_FFUART_DTR, GPIO41_FFUART_RTS, GPIO39_FFUART_TXD, GPIO37_FFUART_DSR, GPIO34_FFUART_RXD, GPIO35_FFUART_CTS, /* PC Card */ GPIO48_nPOE, GPIO49_nPWE, GPIO50_nPIOR, GPIO51_nPIOW, GPIO52_nPCE_1, GPIO53_nPCE_2, GPIO54_nPSKTSEL, GPIO55_nPREG, GPIO56_nPWAIT, GPIO57_nIOIS16, /* MMC */ GPIO6_MMC_CLK, GPIO8_MMC_CS0, /* GPIO */ GPIO9_GPIO, /* CORGI_GPIO_nSD_DETECT */ GPIO7_GPIO, /* CORGI_GPIO_nSD_WP */ GPIO33_GPIO, /* CORGI_GPIO_SD_PWR */ GPIO22_GPIO, /* CORGI_GPIO_IR_ON */ GPIO44_GPIO, /* CORGI_GPIO_HSYNC */ GPIO1_GPIO | WAKEUP_ON_EDGE_RISE, }; /* * Corgi SCOOP Device */ static struct resource corgi_scoop_resources[] = { [0] = { .start = 0x10800000, .end = 0x10800fff, .flags = IORESOURCE_MEM, }, }; static struct scoop_config corgi_scoop_setup = { .io_dir = CORGI_SCOOP_IO_DIR, .io_out = CORGI_SCOOP_IO_OUT, .gpio_base = CORGI_SCOOP_GPIO_BASE, }; struct platform_device corgiscoop_device = { .name = "sharp-scoop", .id = -1, .dev = { .platform_data = &corgi_scoop_setup, }, .num_resources = ARRAY_SIZE(corgi_scoop_resources), .resource = corgi_scoop_resources, }; static struct scoop_pcmcia_dev corgi_pcmcia_scoop[] = { { .dev = &corgiscoop_device.dev, .irq = CORGI_IRQ_GPIO_CF_IRQ, .cd_irq = CORGI_IRQ_GPIO_CF_CD, .cd_irq_str = "PCMCIA0 CD", }, }; static struct scoop_pcmcia_config corgi_pcmcia_config = { .devs = &corgi_pcmcia_scoop[0], .num_devs = 1, }; EXPORT_SYMBOL(corgiscoop_device); static struct w100_mem_info corgi_fb_mem = { .ext_cntl = 0x00040003, .sdram_mode_reg = 0x00650021, .ext_timing_cntl = 0x10002a4a, .io_cntl = 0x7ff87012, .size = 0x1fffff, }; static struct w100_gen_regs corgi_fb_regs = { .lcd_format = 0x00000003, .lcdd_cntl1 = 0x01CC0000, .lcdd_cntl2 = 0x0003FFFF, .genlcd_cntl1 = 0x00FFFF0D, .genlcd_cntl2 = 0x003F3003, .genlcd_cntl3 = 0x000102aa, }; static struct w100_gpio_regs corgi_fb_gpio = { .init_data1 = 0x000000bf, .init_data2 = 0x00000000, .gpio_dir1 = 0x00000000, .gpio_oe1 = 0x03c0feff, .gpio_dir2 = 0x00000000, .gpio_oe2 = 0x00000000, }; static struct w100_mode corgi_fb_modes[] = { { .xres = 480, .yres = 640, .left_margin = 0x56, .right_margin = 0x55, .upper_margin = 0x03, .lower_margin = 0x00, .crtc_ss = 0x82360056, .crtc_ls = 0xA0280000, .crtc_gs = 0x80280028, .crtc_vpos_gs = 0x02830002, .crtc_rev = 0x00400008, .crtc_dclk = 0xA0000000, .crtc_gclk = 0x8015010F, .crtc_goe = 0x80100110, .crtc_ps1_active = 0x41060010, .pll_freq = 75, .fast_pll_freq = 100, .sysclk_src = CLK_SRC_PLL, .sysclk_divider = 0, .pixclk_src = CLK_SRC_PLL, .pixclk_divider = 2, .pixclk_divider_rotated = 6, },{ .xres = 240, .yres = 320, .left_margin = 0x27, .right_margin = 0x2e, .upper_margin = 0x01, .lower_margin = 0x00, .crtc_ss = 0x81170027, .crtc_ls = 0xA0140000, .crtc_gs = 0xC0140014, .crtc_vpos_gs = 0x00010141, .crtc_rev = 0x00400008, .crtc_dclk = 0xA0000000, .crtc_gclk = 0x8015010F, .crtc_goe = 0x80100110, .crtc_ps1_active = 0x41060010, .pll_freq = 0, .fast_pll_freq = 0, .sysclk_src = CLK_SRC_XTAL, .sysclk_divider = 0, .pixclk_src = CLK_SRC_XTAL, .pixclk_divider = 1, .pixclk_divider_rotated = 1, }, }; static struct w100fb_mach_info corgi_fb_info = { .init_mode = INIT_MODE_ROTATED, .mem = &corgi_fb_mem, .regs = &corgi_fb_regs, .modelist = &corgi_fb_modes[0], .num_modes = 2, .gpio = &corgi_fb_gpio, .xtal_freq = 12500000, .xtal_dbl = 0, }; static struct resource corgi_fb_resources[] = { [0] = { .start = 0x08000000, .end = 0x08ffffff, .flags = IORESOURCE_MEM, }, }; static struct platform_device corgifb_device = { .name = "w100fb", .id = -1, .num_resources = ARRAY_SIZE(corgi_fb_resources), .resource = corgi_fb_resources, .dev = { .platform_data = &corgi_fb_info, }, }; /* * Corgi Keyboard Device */ static struct platform_device corgikbd_device = { .name = "corgi-keyboard", .id = -1, }; /* * Corgi LEDs */ static struct gpio_led corgi_gpio_leds[] = { { .name = "corgi:amber:charge", .default_trigger = "sharpsl-charge", .gpio = CORGI_GPIO_LED_ORANGE, }, { .name = "corgi:green:mail", .default_trigger = "nand-disk", .gpio = CORGI_GPIO_LED_GREEN, }, }; static struct gpio_led_platform_data corgi_gpio_leds_info = { .leds = corgi_gpio_leds, .num_leds = ARRAY_SIZE(corgi_gpio_leds), }; static struct platform_device corgiled_device = { .name = "leds-gpio", .id = -1, .dev = { .platform_data = &corgi_gpio_leds_info, }, }; /* * 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 corgi_mci_platform_data; static int corgi_mci_init(struct device *dev, irq_handler_t corgi_detect_int, void *data) { int err; err = gpio_request(CORGI_GPIO_nSD_DETECT, "nSD_DETECT"); if (err) goto err_out; err = gpio_request(CORGI_GPIO_nSD_WP, "nSD_WP"); if (err) goto err_free_1; err = gpio_request(CORGI_GPIO_SD_PWR, "SD_PWR"); if (err) goto err_free_2; gpio_direction_input(CORGI_GPIO_nSD_DETECT); gpio_direction_input(CORGI_GPIO_nSD_WP); gpio_direction_output(CORGI_GPIO_SD_PWR, 0); corgi_mci_platform_data.detect_delay = msecs_to_jiffies(250); err = request_irq(CORGI_IRQ_GPIO_nSD_DETECT, corgi_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_3; } return 0; err_free_3: gpio_free(CORGI_GPIO_SD_PWR); err_free_2: gpio_free(CORGI_GPIO_nSD_WP); err_free_1: gpio_free(CORGI_GPIO_nSD_DETECT); err_out: return err; } static void corgi_mci_setpower(struct device *dev, unsigned int vdd) { struct pxamci_platform_data* p_d = dev->platform_data; gpio_set_value(CORGI_GPIO_SD_PWR, ((1 << vdd) & p_d->ocr_mask)); } static int corgi_mci_get_ro(struct device *dev) { return gpio_get_value(CORGI_GPIO_nSD_WP); } static void corgi_mci_exit(struct device *dev, void *data) { free_irq(CORGI_IRQ_GPIO_nSD_DETECT, data); gpio_free(CORGI_GPIO_SD_PWR); gpio_free(CORGI_GPIO_nSD_WP); gpio_free(CORGI_GPIO_nSD_DETECT); } static struct pxamci_platform_data corgi_mci_platform_data = { .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34, .init = corgi_mci_init, .get_ro = corgi_mci_get_ro, .setpower = corgi_mci_setpower, .exit = corgi_mci_exit, }; /* * Irda */ static void corgi_irda_transceiver_mode(struct device *dev, int mode) { gpio_set_value(CORGI_GPIO_IR_ON, mode & IR_OFF); pxa2xx_transceiver_mode(dev, mode); } static int corgi_irda_startup(struct device *dev) { int err; err = gpio_request(CORGI_GPIO_IR_ON, "IR_ON"); if (err) return err; gpio_direction_output(CORGI_GPIO_IR_ON, 1); return 0; } static void corgi_irda_shutdown(struct device *dev) { gpio_free(CORGI_GPIO_IR_ON); } static struct pxaficp_platform_data corgi_ficp_platform_data = { .transceiver_cap = IR_SIRMODE | IR_OFF, .transceiver_mode = corgi_irda_transceiver_mode, .startup = corgi_irda_startup, .shutdown = corgi_irda_shutdown, }; /* * USB Device Controller */ static struct pxa2xx_udc_mach_info udc_info __initdata = { /* no connect GPIO; corgi can't tell connection status */ .gpio_pullup = CORGI_GPIO_USB_PULLUP, }; #if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MASTER) static struct pxa2xx_spi_master corgi_spi_info = { .num_chipselect = 3, }; static void corgi_wait_for_hsync(void) { while (gpio_get_value(CORGI_GPIO_HSYNC)) cpu_relax(); while (!gpio_get_value(CORGI_GPIO_HSYNC)) cpu_relax(); } static struct ads7846_platform_data corgi_ads7846_info = { .model = 7846, .vref_delay_usecs = 100, .x_plate_ohms = 419, .y_plate_ohms = 486, .gpio_pendown = CORGI_GPIO_TP_INT, .wait_for_sync = corgi_wait_for_hsync, }; static struct pxa2xx_spi_chip corgi_ads7846_chip = { .gpio_cs = CORGI_GPIO_ADS7846_CS, }; static void corgi_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 corgi_lcdcon_info = { .init_mode = CORGI_LCD_MODE_VGA, .max_intensity = 0x2f, .default_intensity = 0x1f, .limit_mask = 0x0b, .gpio_backlight_cont = CORGI_GPIO_BACKLIGHT_CONT, .gpio_backlight_on = -1, .kick_battery = corgi_bl_kick_battery, }; static struct pxa2xx_spi_chip corgi_lcdcon_chip = { .gpio_cs = CORGI_GPIO_LCDCON_CS, }; static struct pxa2xx_spi_chip corgi_max1111_chip = { .gpio_cs = CORGI_GPIO_MAX1111_CS, }; static struct spi_board_info corgi_spi_devices[] = { { .modalias = "ads7846", .max_speed_hz = 1200000, .bus_num = 1, .chip_select = 0, .platform_data = &corgi_ads7846_info, .controller_data= &corgi_ads7846_chip, .irq = gpio_to_irq(CORGI_GPIO_TP_INT), }, { .modalias = "corgi-lcd", .max_speed_hz = 50000, .bus_num = 1, .chip_select = 1, .platform_data = &corgi_lcdcon_info, .controller_data= &corgi_lcdcon_chip, }, { .modalias = "max1111", .max_speed_hz = 450000, .bus_num = 1, .chip_select = 2, .controller_data= &corgi_max1111_chip, }, }; static void __init corgi_init_spi(void) { pxa2xx_set_spi_info(1, &corgi_spi_info); spi_register_board_info(ARRAY_AND_SIZE(corgi_spi_devices)); } #else static inline void corgi_init_spi(void) {} #endif static struct mtd_partition sharpsl_nand_partitions[] = { { .name = "System Area", .offset = 0, .size = 7 * 1024 * 1024, }, { .name = "Root Filesystem", .offset = 7 * 1024 * 1024, .size = 25 * 1024 * 1024, }, { .name = "Home Filesystem", .offset = MTDPART_OFS_APPEND, .size = MTDPART_SIZ_FULL, }, }; static uint8_t scan_ff_pattern[] = { 0xff, 0xff }; static struct nand_bbt_descr sharpsl_bbt = { .options = 0, .offs = 4, .len = 2, .pattern = scan_ff_pattern }; static struct sharpsl_nand_platform_data sharpsl_nand_platform_data = { .badblock_pattern = &sharpsl_bbt, .partitions = sharpsl_nand_partitions, .nr_partitions = ARRAY_SIZE(sharpsl_nand_partitions), }; static struct resource sharpsl_nand_resources[] = { { .start = 0x0C000000, .end = 0x0C000FFF, .flags = IORESOURCE_MEM, }, }; static struct platform_device sharpsl_nand_device = { .name = "sharpsl-nand", .id = -1, .resource = sharpsl_nand_resources, .num_resources = ARRAY_SIZE(sharpsl_nand_resources), .dev.platform_data = &sharpsl_nand_platform_data, }; static struct mtd_partition sharpsl_rom_parts[] = { { .name ="Boot PROM Filesystem", .offset = 0x00120000, .size = MTDPART_SIZ_FULL, }, }; static struct physmap_flash_data sharpsl_rom_data = { .width = 2, .nr_parts = ARRAY_SIZE(sharpsl_rom_parts), .parts = sharpsl_rom_parts, }; static struct resource sharpsl_rom_resources[] = { { .start = 0x00000000, .end = 0x007fffff, .flags = IORESOURCE_MEM, }, }; static struct platform_device sharpsl_rom_device = { .name = "physmap-flash", .id = -1, .resource = sharpsl_rom_resources, .num_resources = ARRAY_SIZE(sharpsl_rom_resources), .dev.platform_data = &sharpsl_rom_data, }; static struct platform_device *devices[] __initdata = { &corgiscoop_device, &corgifb_device, &corgikbd_device, &corgiled_device, &sharpsl_nand_device, &sharpsl_rom_device, }; static struct i2c_board_info __initdata corgi_i2c_devices[] = { { I2C_BOARD_INFO("wm8731", 0x1b) }, }; static void corgi_poweroff(void) { if (!machine_is_corgi()) /* Green LED off tells the bootloader to halt */ gpio_set_value(CORGI_GPIO_LED_GREEN, 0); arm_machine_restart('h', NULL); } static void corgi_restart(char mode, const char *cmd) { if (!machine_is_corgi()) /* Green LED on tells the bootloader to reboot */ gpio_set_value(CORGI_GPIO_LED_GREEN, 1); arm_machine_restart('h', cmd); } static void __init corgi_init(void) { pm_power_off = corgi_poweroff; arm_pm_restart = corgi_restart; /* Stop 3.6MHz and drive HIGH to PCMCIA and CS */ PCFR |= PCFR_OPDE; pxa2xx_mfp_config(ARRAY_AND_SIZE(corgi_pin_config)); corgi_init_spi(); pxa_set_udc_info(&udc_info); pxa_set_mci_info(&corgi_mci_platform_data); pxa_set_ficp_info(&corgi_ficp_platform_data); pxa_set_i2c_info(NULL); i2c_register_board_info(0, ARRAY_AND_SIZE(corgi_i2c_devices)); platform_scoop_config = &corgi_pcmcia_config; if (machine_is_husky()) sharpsl_nand_partitions[1].size = 53 * 1024 * 1024; platform_add_devices(devices, ARRAY_SIZE(devices)); } static void __init fixup_corgi(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; if (machine_is_corgi()) mi->bank[0].size = (32*1024*1024); else mi->bank[0].size = (64*1024*1024); } #ifdef CONFIG_MACH_CORGI MACHINE_START(CORGI, "SHARP Corgi") .phys_io = 0x40000000, .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc, .fixup = fixup_corgi, .map_io = pxa_map_io, .init_irq = pxa25x_init_irq, .init_machine = corgi_init, .timer = &pxa_timer, MACHINE_END #endif #ifdef CONFIG_MACH_SHEPHERD MACHINE_START(SHEPHERD, "SHARP Shepherd") .phys_io = 0x40000000, .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc, .fixup = fixup_corgi, .map_io = pxa_map_io, .init_irq = pxa25x_init_irq, .init_machine = corgi_init, .timer = &pxa_timer, MACHINE_END #endif #ifdef CONFIG_MACH_HUSKY MACHINE_START(HUSKY, "SHARP Husky") .phys_io = 0x40000000, .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc, .fixup = fixup_corgi, .map_io = pxa_map_io, .init_irq = pxa25x_init_irq, .init_machine = corgi_init, .timer = &pxa_timer, MACHINE_END #endif