/* * linux/arch/arm/mach-s3c2442/mach-gta02.c * * S3C2442 Machine Support for Openmoko GTA02 / FreeRunner. * * Copyright (C) 2006-2009 by Openmoko, Inc. * Authors: Harald Welte * Andy Green * Werner Almesberger * All rights reserved. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA * */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include struct pcf50633 *gta02_pcf; /* * This gets called every 1ms when we paniced. */ static long gta02_panic_blink(long count) { long delay = 0; static long last_blink; static char led; /* Fast blink: 200ms period. */ if (count - last_blink < 100) return 0; led ^= 1; gpio_direction_output(GTA02_GPIO_AUX_LED, led); last_blink = count; return delay; } static struct map_desc gta02_iodesc[] __initdata = { { .virtual = 0xe0000000, .pfn = __phys_to_pfn(S3C2410_CS3 + 0x01000000), .length = SZ_1M, .type = MT_DEVICE }, }; #define UCON (S3C2410_UCON_DEFAULT | S3C2443_UCON_RXERR_IRQEN) #define ULCON (S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB) #define UFCON (S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE) static struct s3c2410_uartcfg gta02_uartcfgs[] = { [0] = { .hwport = 0, .flags = 0, .ucon = UCON, .ulcon = ULCON, .ufcon = UFCON, }, [1] = { .hwport = 1, .flags = 0, .ucon = UCON, .ulcon = ULCON, .ufcon = UFCON, }, [2] = { .hwport = 2, .flags = 0, .ucon = UCON, .ulcon = ULCON, .ufcon = UFCON, }, }; /* * we crank down SD Card clock dynamically when GPS is powered */ static int gta02_glamo_mci_use_slow(void) { return gta02_pm_gps_is_on(); } static void gta02_glamo_external_reset(int level) { s3c2410_gpio_setpin(GTA02_GPIO_3D_RESET, level); s3c2410_gpio_cfgpin(GTA02_GPIO_3D_RESET, S3C2410_GPIO_OUTPUT); } struct spi_gpio_platform_data spigpio_platform_data = { .sck = GTA02_GPIO_GLAMO(10), .mosi = GTA02_GPIO_GLAMO(11), .miso = GTA02_GPIO_GLAMO(5), .num_chipselect = 1, }; static struct platform_device spigpio_device = { .name = "spi_gpio", .id = 2, .dev = { .platform_data = &spigpio_platform_data, }, }; static void gta02_glamo_registered(struct device *dev) { spigpio_device.dev.parent = dev; platform_device_register(&spigpio_device); } static struct fb_videomode gta02_glamo_modes[] = { { .name = "480x640", .xres = 480, .yres = 640, .pixclock = 40816, .left_margin = 8, .right_margin = 16, .upper_margin = 2, .lower_margin = 16, .hsync_len = 8, .vsync_len = 2, .vmode = FB_VMODE_NONINTERLACED, }, { .name = "240x320", .xres = 240, .yres = 320, .pixclock = 40816, .left_margin = 8, .right_margin = 16, .upper_margin = 2, .lower_margin = 16, .hsync_len = 8, .vsync_len = 2, .vmode = FB_VMODE_NONINTERLACED, } }; static struct glamo_fb_platform_data gta02_glamo_fb_pdata = { .width = 43, .height = 58, .num_modes = ARRAY_SIZE(gta02_glamo_modes), .modes = gta02_glamo_modes, }; static struct glamo_mmc_platform_data gta02_glamo_mmc_pdata = { .glamo_mmc_use_slow = gta02_glamo_mci_use_slow, }; static struct glamo_gpio_platform_data gta02_glamo_gpio_pdata = { .base = GTA02_GPIO_GLAMO_BASE, .registered = gta02_glamo_registered, }; static struct glamo_platform_data gta02_glamo_pdata = { .fb_data = >a02_glamo_fb_pdata, .mmc_data = >a02_glamo_mmc_pdata, .gpio_data = >a02_glamo_gpio_pdata, .osci_clock_rate = 32768, .glamo_external_reset = gta02_glamo_external_reset, }; static struct resource gta02_glamo_resources[] = { [0] = { .start = S3C2410_CS1, .end = S3C2410_CS1 + 0x1000000 - 1, .flags = IORESOURCE_MEM, }, [1] = { .start = GTA02_IRQ_3D, .end = GTA02_IRQ_3D, .flags = IORESOURCE_IRQ, }, [2] = { .start = S3C2410_BOARD_IRQ_START, .flags = IORESOURCE_IRQ, }, }; static struct platform_device gta02_glamo_dev = { .name = "glamo3362", .num_resources = ARRAY_SIZE(gta02_glamo_resources), .resource = gta02_glamo_resources, .dev = { .platform_data = >a02_glamo_pdata, }, }; static struct platform_device gta02_pm_gps_dev = { .name = "gta02-pm-gps", }; static struct platform_device gta02_pm_bt_dev = { .name = "gta02-pm-bt", }; static struct platform_device gta02_pm_gsm_dev = { .name = "gta02-pm-gsm", }; static struct platform_device gta02_pm_wlan_dev = { .name = "gta02-pm-wlan", }; #ifdef CONFIG_CHARGER_PCF50633 /* * On GTA02 the 1A charger features a 48K resistor to 0V on the ID pin. * We use this to recognize that we can pull 1A from the USB socket. * * These constants are the measured pcf50633 ADC levels with the 1A * charger / 48K resistor, and with no pulldown resistor. */ #define ADC_NOM_CHG_DETECT_1A 6 #define ADC_NOM_CHG_DETECT_USB 43 static int gta02_get_charger_online_status(void) { struct pcf50633 *pcf = gta02_pcf; return pcf50633_mbc_get_status(pcf) & PCF50633_MBC_USB_ONLINE; } static int gta02_get_charger_active_status(void) { struct pcf50633 *pcf = gta02_pcf; return pcf50633_mbc_get_status(pcf) & PCF50633_MBC_USB_ACTIVE; } static void gta02_configure_pmu_for_charger(struct pcf50633 *pcf, void *unused, int res) { int ma; /* Interpret charger type */ if (res < ((ADC_NOM_CHG_DETECT_USB + ADC_NOM_CHG_DETECT_1A) / 2)) { /* * Sanity - stop GPO driving out now that we have a 1A charger * GPO controls USB Host power generation on GTA02 */ pcf50633_gpio_set(pcf, PCF50633_GPO, 0); ma = 1000; } else ma = 100; pcf50633_mbc_usb_curlim_set(pcf, ma); } static struct delayed_work gta02_charger_work; static int gta02_usb_vbus_draw; static void gta02_charger_worker(struct work_struct *work) { if (gta02_usb_vbus_draw) { pcf50633_mbc_usb_curlim_set(gta02_pcf, gta02_usb_vbus_draw); return; } #ifdef CONFIG_PCF50633_ADC pcf50633_adc_async_read(gta02_pcf, PCF50633_ADCC1_MUX_ADCIN1, PCF50633_ADCC1_AVERAGE_16, gta02_configure_pmu_for_charger, NULL); #else /* * If the PCF50633 ADC is disabled we fallback to a * 100mA limit for safety. */ pcf50633_mbc_usb_curlim_set(pcf, 100); #endif } #define GTA02_CHARGER_CONFIGURE_TIMEOUT ((3000 * HZ) / 1000) static void gta02_pmu_event_callback(struct pcf50633 *pcf, int irq) { if (irq == PCF50633_IRQ_USBINS) { schedule_delayed_work(>a02_charger_work, GTA02_CHARGER_CONFIGURE_TIMEOUT); return; } if (irq == PCF50633_IRQ_USBREM) { cancel_delayed_work_sync(>a02_charger_work); gta02_usb_vbus_draw = 0; } } static void gta02_udc_vbus_draw(unsigned int ma) { if (!gta02_pcf) return; gta02_usb_vbus_draw = ma; schedule_delayed_work(>a02_charger_work, GTA02_CHARGER_CONFIGURE_TIMEOUT); } #else /* !CONFIG_CHARGER_PCF50633 */ #define gta02_pmu_event_callback NULL #define gta02_udc_vbus_draw NULL #define gta02_get_charger_online_status NULL #define gta02_get_charger_active_status NULL #endif /* * This is called when pc50633 is probed, unfortunately quite late in the * day since it is an I2C bus device. Here we can belatedly define some * platform devices with the advantage that we can mark the pcf50633 as the * parent. This makes them get suspended and resumed with their parent * the pcf50633 still around. */ static void gta02_pmu_attach_child_devices(struct pcf50633 *pcf); static char *gta02_batteries[] = { "battery", }; static struct regulator_consumer_supply ldo4_consumers[] = { { .dev = >a02_pm_bt_dev.dev, .supply = "BT_3V2", }, }; static struct regulator_consumer_supply ldo5_consumers[] = { { .dev = >a02_pm_gps_dev.dev, .supply = "RF_3V", }, }; static struct regulator_consumer_supply hcldo_consumers[] = { { .dev = >a02_glamo_dev.dev, .supply = "SD_3V3", }, }; static struct regulator_consumer_supply ldo6_consumers[] = { REGULATOR_SUPPLY("VDC", "spi2.0"), REGULATOR_SUPPLY("VDDIO", "spi2.0"), }; static struct pcf50633_bl_platform_data gta02_backlight_data = { .default_brightness = 0x3f, .default_brightness_limit = 0, .ramp_time = 3, }; struct pcf50633_platform_data gta02_pcf_pdata = { .resumers = { [0] = PCF50633_INT1_USBINS | PCF50633_INT1_USBREM | PCF50633_INT1_ALARM, [1] = PCF50633_INT2_ONKEYF, [2] = PCF50633_INT3_ONKEY1S, [3] = PCF50633_INT4_LOWSYS | PCF50633_INT4_LOWBAT | PCF50633_INT4_HIGHTMP, }, .batteries = gta02_batteries, .num_batteries = ARRAY_SIZE(gta02_batteries), .chg_ref_current_ma = 1000, .backlight_data = >a02_backlight_data, .reg_init_data = { [PCF50633_REGULATOR_AUTO] = { .constraints = { .min_uV = 3300000, .max_uV = 3300000, .valid_modes_mask = REGULATOR_MODE_NORMAL, .valid_ops_mask = REGULATOR_CHANGE_STATUS, .always_on = 1, .apply_uV = 1, .state_mem = { .enabled = 1, }, }, }, [PCF50633_REGULATOR_DOWN1] = { .constraints = { .min_uV = 1300000, .max_uV = 1600000, .valid_modes_mask = REGULATOR_MODE_NORMAL, .valid_ops_mask = REGULATOR_CHANGE_STATUS, .always_on = 1, .apply_uV = 1, }, }, [PCF50633_REGULATOR_DOWN2] = { .constraints = { .min_uV = 1800000, .max_uV = 1800000, .valid_modes_mask = REGULATOR_MODE_NORMAL, .apply_uV = 1, .always_on = 1, .state_mem = { .enabled = 1, }, }, }, [PCF50633_REGULATOR_HCLDO] = { .constraints = { .min_uV = 2000000, .max_uV = 3300000, .valid_modes_mask = REGULATOR_MODE_NORMAL, .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE | REGULATOR_CHANGE_VOLTAGE, .always_on = 1, }, .num_consumer_supplies = ARRAY_SIZE(hcldo_consumers), .consumer_supplies = hcldo_consumers, }, [PCF50633_REGULATOR_LDO1] = { .constraints = { .min_uV = 3300000, .max_uV = 3300000, .valid_modes_mask = REGULATOR_MODE_NORMAL, .valid_ops_mask = REGULATOR_CHANGE_STATUS, .apply_uV = 1, .state_mem = { .enabled = 0, }, }, }, [PCF50633_REGULATOR_LDO2] = { .constraints = { .min_uV = 3300000, .max_uV = 3300000, .valid_modes_mask = REGULATOR_MODE_NORMAL, .valid_ops_mask = REGULATOR_CHANGE_STATUS, .apply_uV = 1, }, }, [PCF50633_REGULATOR_LDO3] = { .constraints = { .min_uV = 3000000, .max_uV = 3000000, .valid_modes_mask = REGULATOR_MODE_NORMAL, .valid_ops_mask = REGULATOR_CHANGE_STATUS, .apply_uV = 1, }, }, [PCF50633_REGULATOR_LDO4] = { .constraints = { .min_uV = 3200000, .max_uV = 3200000, .valid_modes_mask = REGULATOR_MODE_NORMAL, .valid_ops_mask = REGULATOR_CHANGE_STATUS, .apply_uV = 1, }, .num_consumer_supplies = ARRAY_SIZE(ldo4_consumers), .consumer_supplies = ldo4_consumers, }, [PCF50633_REGULATOR_LDO5] = { .constraints = { .min_uV = 3000000, .max_uV = 3000000, .valid_modes_mask = REGULATOR_MODE_NORMAL, .valid_ops_mask = REGULATOR_CHANGE_STATUS, .apply_uV = 1, .state_mem = { .enabled = 1, }, }, .num_consumer_supplies = ARRAY_SIZE(ldo5_consumers), .consumer_supplies = ldo5_consumers, }, [PCF50633_REGULATOR_LDO6] = { .constraints = { .min_uV = 3000000, .max_uV = 3000000, .valid_modes_mask = REGULATOR_MODE_NORMAL, .valid_ops_mask = REGULATOR_CHANGE_STATUS, }, .num_consumer_supplies = ARRAY_SIZE(ldo6_consumers), .consumer_supplies = ldo6_consumers, }, [PCF50633_REGULATOR_MEMLDO] = { .constraints = { .min_uV = 1800000, .max_uV = 1800000, .valid_modes_mask = REGULATOR_MODE_NORMAL, .valid_ops_mask = REGULATOR_CHANGE_STATUS, .state_mem = { .enabled = 1, }, }, }, }, .probe_done = gta02_pmu_attach_child_devices, .mbc_event_callback = gta02_pmu_event_callback, }; /* NOR Flash. */ #define GTA02_FLASH_BASE 0x18000000 /* GCS3 */ #define GTA02_FLASH_SIZE 0x200000 /* 2MBytes */ static struct physmap_flash_data gta02_nor_flash_data = { .width = 2, }; static struct resource gta02_nor_flash_resource = { .start = GTA02_FLASH_BASE, .end = GTA02_FLASH_BASE + GTA02_FLASH_SIZE - 1, .flags = IORESOURCE_MEM, }; static struct platform_device gta02_nor_flash = { .name = "physmap-flash", .id = 0, .dev = { .platform_data = >a02_nor_flash_data, }, .resource = >a02_nor_flash_resource, .num_resources = 1, }; static struct i2c_board_info gta02_i2c_devs[] __initdata = { { I2C_BOARD_INFO("pcf50633", 0x73), .irq = GTA02_IRQ_PCF50633, .platform_data = >a02_pcf_pdata, }, { I2C_BOARD_INFO("wm8753", 0x1a), }, }; static struct s3c2410_nand_set gta02_nand_sets[] = { [0] = { /* * This name is also hard-coded in the boot loaders, so * changing it would would require all users to upgrade * their boot loaders, some of which are stored in a NOR * that is considered to be immutable. */ .name = "neo1973-nand", .nr_chips = 1, .flash_bbt = 1, }, }; /* * Choose a set of timings derived from S3C@2442B MCP54 * data sheet (K5D2G13ACM-D075 MCP Memory). */ static struct s3c2410_platform_nand gta02_nand_info = { .tacls = 0, .twrph0 = 25, .twrph1 = 15, .nr_sets = ARRAY_SIZE(gta02_nand_sets), .sets = gta02_nand_sets, .software_ecc = 1, }; static void gta02_udc_command(enum s3c2410_udc_cmd_e cmd) { switch (cmd) { case S3C2410_UDC_P_ENABLE: pr_debug("%s S3C2410_UDC_P_ENABLE\n", __func__); gpio_set_value(GTA02_GPIO_USB_PULLUP, 1); break; case S3C2410_UDC_P_DISABLE: pr_debug("%s S3C2410_UDC_P_DISABLE\n", __func__); gpio_set_value(GTA02_GPIO_USB_PULLUP, 0); break; case S3C2410_UDC_P_RESET: pr_debug("%s S3C2410_UDC_P_RESET\n", __func__); /* FIXME: Do something here. */ } } /* Get PMU to set USB current limit accordingly. */ static struct s3c2410_udc_mach_info gta02_udc_cfg = { .vbus_draw = gta02_udc_vbus_draw, .udc_command = gta02_udc_command, }; /* USB */ static struct s3c2410_hcd_info gta02_usb_info = { .port[0] = { .flags = S3C_HCDFLG_USED, }, .port[1] = { .flags = 0, }, }; /* JBT6k74 display controller */ static void gta02_jbt6k74_probe_completed(struct device *dev) { pcf50633_bl_set_brightness_limit(gta02_pcf, 0x3f); } const struct jbt6k74_platform_data jbt6k74_pdata = { .probe_completed = gta02_jbt6k74_probe_completed, .gpio_reset = GTA02_GPIO_GLAMO(4), }; static struct spi_board_info gta02_spi_board_info[] = { { .modalias = "jbt6k74", .platform_data = &jbt6k74_pdata, .controller_data = (void*)GTA02_GPIO_GLAMO(12), /* irq */ .max_speed_hz = 100 * 1000, .bus_num = 2, .chip_select = 0 }, }; /* BQ27000 Battery */ struct bq27000_platform_data bq27000_pdata = { .name = "battery", .rsense_mohms = 20, .hdq_read = hdq_read, .hdq_write = hdq_write, .hdq_initialized = hdq_initialized, .get_charger_online_status = gta02_get_charger_online_status, .get_charger_active_status = gta02_get_charger_active_status }; struct platform_device bq27000_battery_device = { .name = "bq27000-battery", .dev = { .platform_data = &bq27000_pdata, }, }; /* Platform battery */ /* Capacity of a typical BL-5C dumb battery */ #define GTA02_BAT_CHARGE_FULL 850000 static int gta02_bat_voltscale(int volt) { /* This table is suggested by SpeedEvil based on analysis of * experimental data */ static const int lut[][2] = { { 4120, 100 }, { 3900, 60 }, { 3740, 25 }, { 3600, 5 }, { 3000, 0 } }; int i, res = 0; if (volt > lut[0][0]) res = lut[0][1]; else for (i = 0; lut[i][1]; i++) { if (volt <= lut[i][0] && volt >= lut[i+1][0]) { res = lut[i][1] - (lut[i][0]-volt)* (lut[i][1]-lut[i+1][1])/ (lut[i][0]-lut[i+1][0]); break; } } return res; } static int gta02_bat_get_voltage(void) { struct pcf50633 *pcf = gta02_pcf; u16 adc, mv = 0; adc = pcf50633_adc_sync_read(pcf, PCF50633_ADCC1_MUX_BATSNS_RES, PCF50633_ADCC1_AVERAGE_16); /* The formula from DS is for divide-by-two mode, current driver uses divide-by-three */ mv = (adc * 6000) / 1023; return mv * 1000; } static int gta02_bat_get_present(void) { /* There is no reliable way to tell if it is present or not */ return 1; } static int gta02_bat_get_status(void) { #ifdef CONFIG_CHARGER_PCF50633 if (gta02_get_charger_active_status()) return POWER_SUPPLY_STATUS_CHARGING; else return POWER_SUPPLY_STATUS_DISCHARGING; #else return POWER_SUPPLY_STATUS_UNKNOWN; #endif } static int gta02_bat_get_capacity(void) { return gta02_bat_voltscale(gta02_bat_get_voltage()/1000); } static int gta02_bat_get_charge_full(void) { return GTA02_BAT_CHARGE_FULL; } static int gta02_bat_get_charge_now(void) { return gta02_bat_get_capacity() * gta02_bat_get_charge_full() / 100; } static enum power_supply_property gta02_platform_bat_properties[] = { POWER_SUPPLY_PROP_PRESENT, POWER_SUPPLY_PROP_STATUS, POWER_SUPPLY_PROP_VOLTAGE_NOW, POWER_SUPPLY_PROP_CAPACITY, POWER_SUPPLY_PROP_CHARGE_FULL, POWER_SUPPLY_PROP_CHARGE_NOW, }; int (*gta02_platform_bat_get_property[])(void) = { gta02_bat_get_present, gta02_bat_get_status, gta02_bat_get_voltage, gta02_bat_get_capacity, gta02_bat_get_charge_full, gta02_bat_get_charge_now, }; static struct platform_bat_platform_data gta02_platform_bat_pdata = { .name = "battery", .properties = gta02_platform_bat_properties, .num_properties = ARRAY_SIZE(gta02_platform_bat_properties), .get_property = gta02_platform_bat_get_property, .is_present = gta02_bat_get_present, }; struct platform_device gta02_platform_bat = { .name = "platform_battery", .id = -1, .dev = { .platform_data = >a02_platform_bat_pdata, } }; /* HDQ */ static void gta02_hdq_attach_child_devices(struct device *parent_device) { bq27000_battery_device.dev.parent = parent_device; platform_device_register(&bq27000_battery_device); } static void gta02_hdq_gpio_direction_out(void) { s3c2410_gpio_cfgpin(GTA02v5_GPIO_HDQ, S3C2410_GPIO_OUTPUT); } static void gta02_hdq_gpio_direction_in(void) { s3c2410_gpio_cfgpin(GTA02v5_GPIO_HDQ, S3C2410_GPIO_INPUT); } static void gta02_hdq_gpio_set_value(int val) { s3c2410_gpio_setpin(GTA02v5_GPIO_HDQ, val); } static int gta02_hdq_gpio_get_value(void) { return s3c2410_gpio_getpin(GTA02v5_GPIO_HDQ); } static struct resource gta02_hdq_resources[] = { [0] = { .start = GTA02v5_GPIO_HDQ, .end = GTA02v5_GPIO_HDQ, }, }; /* Buttons */ static struct gpio_keys_button gta02_buttons[] = { { .gpio = GTA02_GPIO_AUX_KEY, .code = KEY_PHONE, .desc = "Aux", .type = EV_KEY, .debounce_interval = 100, }, { .gpio = GTA02_GPIO_HOLD_KEY, .code = KEY_PAUSE, .desc = "Hold", .type = EV_KEY, .debounce_interval = 100, }, }; static struct gpio_keys_platform_data gta02_buttons_pdata = { .buttons = gta02_buttons, .nbuttons = ARRAY_SIZE(gta02_buttons), }; static struct platform_device gta02_buttons_device = { .name = "gpio-keys", .id = -1, .dev = { .platform_data = >a02_buttons_pdata, }, }; /* LEDs */ static struct gpio_led gta02_gpio_leds[] = { { .name = "gta02:red:aux", .gpio = GTA02_GPIO_AUX_LED, }, }; static struct gpio_led_platform_data gta02_gpio_leds_pdata = { .leds = gta02_gpio_leds, .num_leds = ARRAY_SIZE(gta02_gpio_leds), }; static struct platform_device gta02_leds_device = { .name = "leds-gpio", .id = -1, .dev = { .platform_data = >a02_gpio_leds_pdata, }, }; static struct led_pwm gta02_pwm_leds[] = { { .name = "gta02:orange:power", .max_brightness = 0xff, .pwm_period_ns = 1000000, .pwm_id = 0, }, { .name = "gta02:blue:power", .max_brightness = 0xff, .pwm_period_ns = 1000000, .pwm_id = 1, }, { .name = "gta02::vibrator", .max_brightness = 0x3f, .pwm_period_ns = 60000000, .pwm_id = 3, } }; static struct led_pwm_platform_data gta02_pwm_leds_pdata = { .num_leds = ARRAY_SIZE(gta02_pwm_leds), .leds = gta02_pwm_leds, }; static struct platform_device gta02_pwm_leds_device = { .name = "leds_pwm", .id = -1, .dev = { .platform_data = >a02_pwm_leds_pdata, } }; struct hdq_platform_data gta02_hdq_platform_data = { .attach_child_devices = gta02_hdq_attach_child_devices, .gpio_dir_out = gta02_hdq_gpio_direction_out, .gpio_dir_in = gta02_hdq_gpio_direction_in, .gpio_set = gta02_hdq_gpio_set_value, .gpio_get = gta02_hdq_gpio_get_value, .enable_fiq = gta02_fiq_enable, .disable_fiq = gta02_fiq_disable, .kick_fiq = gta02_fiq_kick, }; struct platform_device gta02_hdq_device = { .name = "hdq", .num_resources = 1, .resource = gta02_hdq_resources, .dev = { .platform_data = >a02_hdq_platform_data, .parent = &s3c_device_timer[0].dev, }, }; static void __init gta02_map_io(void) { s3c24xx_init_io(gta02_iodesc, ARRAY_SIZE(gta02_iodesc)); s3c24xx_init_clocks(12000000); s3c24xx_init_uarts(gta02_uartcfgs, ARRAY_SIZE(gta02_uartcfgs)); } /* These are the guys that don't need to be children of PMU. */ static struct platform_device *gta02_devices[] __initdata = { &s3c_device_usb, &s3c_device_wdt, &s3c_device_sdi, &s3c_device_usbgadget, &s3c_device_nand, >a02_nor_flash, &s3c_device_timer[0], &s3c_device_timer[1], &s3c_device_timer[3], &s3c_device_iis, &s3c_device_i2c0, >a02_buttons_device, >a02_leds_device, >a02_pwm_leds_device, >a02_pm_gps_dev, >a02_pm_bt_dev, >a02_pm_gsm_dev, >a02_pm_wlan_dev, &s3c_device_adc, }; /* These guys DO need to be children of PMU. */ static struct platform_device *gta02_devices_pmu_children[] = { >a02_glamo_dev, &s3c_device_timer[2], >a02_hdq_device, }; /* * This is called when pc50633 is probed, quite late in the day since it is an * I2C bus device. Here we can define platform devices with the advantage that * we can mark the pcf50633 as the parent. This makes them get suspended and * resumed with their parent the pcf50633 still around. All devices whose * operation depends on something from pcf50633 must have this relationship * made explicit like this, or suspend and resume will become an unreliable * hellworld. */ static void gta02_pmu_attach_child_devices(struct pcf50633 *pcf) { int n; /* Grab a copy of the now probed PMU pointer. */ gta02_pcf = pcf; for (n = 0; n < ARRAY_SIZE(gta02_devices_pmu_children); n++) gta02_devices_pmu_children[n]->dev.parent = pcf->dev; platform_add_devices(gta02_devices_pmu_children, ARRAY_SIZE(gta02_devices_pmu_children)); } static void gta02_poweroff(void) { pcf50633_reg_set_bit_mask(gta02_pcf, PCF50633_REG_OOCSHDWN, 1, 1); } /* On hardware rev 5 and earlier the leds are missing a resistor and reading * from their gpio pins will always return 0, so we have to shadow the * led states software */ static unsigned long gpb_shadow; extern struct s3c_gpio_chip s3c24xx_gpios[]; static void gta02_gpb_set(struct gpio_chip *chip, unsigned offset, int value) { void __iomem *base = S3C24XX_GPIO_BASE(S3C2410_GPB(0)); unsigned long flags; unsigned long dat; local_irq_save(flags); dat = __raw_readl(base + 0x04) | gpb_shadow; dat &= ~(1 << offset); gpb_shadow &= ~(1 << offset); if (value) { dat |= 1 << offset; switch (offset) { case 0 ... 2: gpb_shadow |= 1 << offset; break; default: break; } } __raw_writel(dat, base + 0x04); local_irq_restore(flags); } static int gta02_gpb_get(struct gpio_chip *chip, unsigned offset) { void __iomem *base = S3C24XX_GPIO_BASE(S3C2410_GPB(0)); unsigned long val; val = __raw_readl(base + 0x04) | gpb_shadow; val >>= offset; val &= 1; return val; } static void gta02_hijack_gpb(void) { /* Uncomment this, once support for S3C_SYSTEM_REV_ATAG has been merged * upstream. if (S3C_SYSTEM_REV_ATAG > GTA02v5_SYSTEM_REV) return; */ s3c24xx_gpios[1].chip.set = gta02_gpb_set; s3c24xx_gpios[1].chip.get = gta02_gpb_get; } /* * Allow the bootloader to enable hw ecc * hardware_ecc=1|0 */ static int __init hardware_ecc_setup(char *str) { if (str && str[0] == '1') gta02_nand_info.software_ecc = 0; return 1; } __setup("hardware_ecc=", hardware_ecc_setup); static void gta02_request_gpios(void) { int ret; ret = gpio_request(GTA02_GPIO_USB_PULLUP, "USB pullup"); if (ret) { printk(KERN_ERR "Failed to request USB pullup gpio pin: %d\n", ret); } else { ret = gpio_direction_output(GTA02_GPIO_USB_PULLUP, 0); if (ret) printk(KERN_ERR "Failed to set USB pullup gpio direction: %d\n", ret); } } static void gta02_enable_pwm_pins(void) { s3c2410_gpio_cfgpin(GTA02_GPIO_PWR_LED1, S3C2410_GPB0_TOUT0); s3c2410_gpio_cfgpin(GTA02_GPIO_PWR_LED2, S3C2410_GPB1_TOUT1); s3c2410_gpio_cfgpin(GTA02_GPIO_VIBRATOR_ON, S3C2410_GPB3_TOUT3); } static void __init gta02_machine_init(void) { /* Set the panic callback to make AUX LED blink at ~5Hz. */ panic_blink = gta02_panic_blink; gta02_hijack_gpb(); gta02_request_gpios(); s3c_pm_init(); #ifdef CONFIG_CHARGER_PCF50633 INIT_DELAYED_WORK(>a02_charger_work, gta02_charger_worker); #endif s3c_device_usb.dev.platform_data = >a02_usb_info; s3c_device_nand.dev.platform_data = >a02_nand_info; s3c24xx_udc_set_platdata(>a02_udc_cfg); s3c_i2c0_set_platdata(NULL); i2c_register_board_info(0, gta02_i2c_devs, ARRAY_SIZE(gta02_i2c_devs)); spi_register_board_info(gta02_spi_board_info, ARRAY_SIZE(gta02_spi_board_info)); platform_add_devices(gta02_devices, ARRAY_SIZE(gta02_devices)); gta02_enable_pwm_pins(); pm_power_off = gta02_poweroff; } MACHINE_START(NEO1973_GTA02, "GTA02") /* Maintainer: Nelson Castillo */ .phys_io = S3C2410_PA_UART, .io_pg_offst = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc, .boot_params = S3C2410_SDRAM_PA + 0x100, .map_io = gta02_map_io, .init_irq = s3c24xx_init_irq, .init_machine = gta02_machine_init, .timer = &s3c24xx_timer, MACHINE_END