/* * linux/arch/arm/mach-omap1/board-osk.c * * Board specific init for OMAP5912 OSK * * Written by Dirk Behme <dirk.behme@de.bosch.com> * * 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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * 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., * 675 Mass Ave, Cambridge, MA 02139, USA. */ #include <linux/kernel.h> #include <linux/init.h> #include <linux/platform_device.h> #include <linux/interrupt.h> #include <linux/irq.h> #include <linux/i2c.h> #include <linux/leds.h> #include <linux/mtd/mtd.h> #include <linux/mtd/partitions.h> #include <linux/i2c/tps65010.h> #include <mach/hardware.h> #include <asm/gpio.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> #include <asm/mach/map.h> #include <asm/mach/flash.h> #include <mach/usb.h> #include <mach/mux.h> #include <mach/tc.h> #include <mach/common.h> /* At OMAP5912 OSK the Ethernet is directly connected to CS1 */ #define OMAP_OSK_ETHR_START 0x04800300 /* TPS65010 has four GPIOs. nPG and LED2 can be treated like GPIOs with * alternate pin configurations for hardware-controlled blinking. */ #define OSK_TPS_GPIO_BASE (OMAP_MAX_GPIO_LINES + 16 /* MPUIO */) # define OSK_TPS_GPIO_USB_PWR_EN (OSK_TPS_GPIO_BASE + 0) # define OSK_TPS_GPIO_LED_D3 (OSK_TPS_GPIO_BASE + 1) # define OSK_TPS_GPIO_LAN_RESET (OSK_TPS_GPIO_BASE + 2) # define OSK_TPS_GPIO_DSP_PWR_EN (OSK_TPS_GPIO_BASE + 3) # define OSK_TPS_GPIO_LED_D9 (OSK_TPS_GPIO_BASE + 4) # define OSK_TPS_GPIO_LED_D2 (OSK_TPS_GPIO_BASE + 5) static struct mtd_partition osk_partitions[] = { /* bootloader (U-Boot, etc) in first sector */ { .name = "bootloader", .offset = 0, .size = SZ_128K, .mask_flags = MTD_WRITEABLE, /* force read-only */ }, /* bootloader params in the next sector */ { .name = "params", .offset = MTDPART_OFS_APPEND, .size = SZ_128K, .mask_flags = 0, }, { .name = "kernel", .offset = MTDPART_OFS_APPEND, .size = SZ_2M, .mask_flags = 0 }, { .name = "filesystem", .offset = MTDPART_OFS_APPEND, .size = MTDPART_SIZ_FULL, .mask_flags = 0 } }; static struct flash_platform_data osk_flash_data = { .map_name = "cfi_probe", .width = 2, .parts = osk_partitions, .nr_parts = ARRAY_SIZE(osk_partitions), }; static struct resource osk_flash_resource = { /* this is on CS3, wherever it's mapped */ .flags = IORESOURCE_MEM, }; static struct platform_device osk5912_flash_device = { .name = "omapflash", .id = 0, .dev = { .platform_data = &osk_flash_data, }, .num_resources = 1, .resource = &osk_flash_resource, }; static struct resource osk5912_smc91x_resources[] = { [0] = { .start = OMAP_OSK_ETHR_START, /* Physical */ .end = OMAP_OSK_ETHR_START + 0xf, .flags = IORESOURCE_MEM, }, [1] = { .start = OMAP_GPIO_IRQ(0), .end = OMAP_GPIO_IRQ(0), .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE, }, }; static struct platform_device osk5912_smc91x_device = { .name = "smc91x", .id = -1, .num_resources = ARRAY_SIZE(osk5912_smc91x_resources), .resource = osk5912_smc91x_resources, }; static struct resource osk5912_cf_resources[] = { [0] = { .start = OMAP_GPIO_IRQ(62), .end = OMAP_GPIO_IRQ(62), .flags = IORESOURCE_IRQ, }, }; static struct platform_device osk5912_cf_device = { .name = "omap_cf", .id = -1, .dev = { .platform_data = (void *) 2 /* CS2 */, }, .num_resources = ARRAY_SIZE(osk5912_cf_resources), .resource = osk5912_cf_resources, }; static struct platform_device *osk5912_devices[] __initdata = { &osk5912_flash_device, &osk5912_smc91x_device, &osk5912_cf_device, }; static struct gpio_led tps_leds[] = { /* NOTE: D9 and D2 have hardware blink support. * Also, D9 requires non-battery power. */ { .gpio = OSK_TPS_GPIO_LED_D9, .name = "d9", .default_trigger = "ide-disk", }, { .gpio = OSK_TPS_GPIO_LED_D2, .name = "d2", }, { .gpio = OSK_TPS_GPIO_LED_D3, .name = "d3", .active_low = 1, .default_trigger = "heartbeat", }, }; static struct gpio_led_platform_data tps_leds_data = { .num_leds = 3, .leds = tps_leds, }; static struct platform_device osk5912_tps_leds = { .name = "leds-gpio", .id = 0, .dev.platform_data = &tps_leds_data, }; static int osk_tps_setup(struct i2c_client *client, void *context) { /* Set GPIO 1 HIGH to disable VBUS power supply; * OHCI driver powers it up/down as needed. */ gpio_request(OSK_TPS_GPIO_USB_PWR_EN, "n_vbus_en"); gpio_direction_output(OSK_TPS_GPIO_USB_PWR_EN, 1); /* Set GPIO 2 high so LED D3 is off by default */ tps65010_set_gpio_out_value(GPIO2, HIGH); /* Set GPIO 3 low to take ethernet out of reset */ gpio_request(OSK_TPS_GPIO_LAN_RESET, "smc_reset"); gpio_direction_output(OSK_TPS_GPIO_LAN_RESET, 0); /* GPIO4 is VDD_DSP */ gpio_request(OSK_TPS_GPIO_DSP_PWR_EN, "dsp_power"); gpio_direction_output(OSK_TPS_GPIO_DSP_PWR_EN, 1); /* REVISIT if DSP support isn't configured, power it off ... */ /* Let LED1 (D9) blink; leds-gpio may override it */ tps65010_set_led(LED1, BLINK); /* Set LED2 off by default */ tps65010_set_led(LED2, OFF); /* Enable LOW_PWR handshake */ tps65010_set_low_pwr(ON); /* Switch VLDO2 to 3.0V for AIC23 */ tps65010_config_vregs1(TPS_LDO2_ENABLE | TPS_VLDO2_3_0V | TPS_LDO1_ENABLE); /* register these three LEDs */ osk5912_tps_leds.dev.parent = &client->dev; platform_device_register(&osk5912_tps_leds); return 0; } static struct tps65010_board tps_board = { .base = OSK_TPS_GPIO_BASE, .outmask = 0x0f, .setup = osk_tps_setup, }; static struct i2c_board_info __initdata osk_i2c_board_info[] = { { I2C_BOARD_INFO("tps65010", 0x48), .irq = OMAP_GPIO_IRQ(OMAP_MPUIO(1)), .platform_data = &tps_board, }, { I2C_BOARD_INFO("tlv320aic23", 0x1B), }, /* TODO when driver support is ready: * - optionally on Mistral, ov9640 camera sensor at 0x30 */ }; static void __init osk_init_smc91x(void) { u32 l; if ((gpio_request(0, "smc_irq")) < 0) { printk("Error requesting gpio 0 for smc91x irq\n"); return; } /* Check EMIFS wait states to fix errors with SMC_GET_PKT_HDR */ l = omap_readl(EMIFS_CCS(1)); l |= 0x3; omap_writel(l, EMIFS_CCS(1)); } static void __init osk_init_cf(void) { omap_cfg_reg(M7_1610_GPIO62); if ((gpio_request(62, "cf_irq")) < 0) { printk("Error requesting gpio 62 for CF irq\n"); return; } /* the CF I/O IRQ is really active-low */ set_irq_type(gpio_to_irq(62), IRQ_TYPE_EDGE_FALLING); } static void __init osk_init_irq(void) { omap1_init_common_hw(); omap_init_irq(); omap_gpio_init(); osk_init_smc91x(); osk_init_cf(); } static struct omap_usb_config osk_usb_config __initdata = { /* has usb host connector (A) ... for development it can also * be used, with a NONSTANDARD gender-bending cable/dongle, as * a peripheral. */ #ifdef CONFIG_USB_GADGET_OMAP .register_dev = 1, .hmc_mode = 0, #else .register_host = 1, .hmc_mode = 16, .rwc = 1, #endif .pins[0] = 2, }; static struct omap_uart_config osk_uart_config __initdata = { .enabled_uarts = (1 << 0), }; #ifdef CONFIG_OMAP_OSK_MISTRAL static struct omap_lcd_config osk_lcd_config __initdata = { .ctrl_name = "internal", }; #endif static struct omap_board_config_kernel osk_config[] __initdata = { { OMAP_TAG_UART, &osk_uart_config }, #ifdef CONFIG_OMAP_OSK_MISTRAL { OMAP_TAG_LCD, &osk_lcd_config }, #endif }; #ifdef CONFIG_OMAP_OSK_MISTRAL #include <linux/input.h> #include <linux/i2c/at24.h> #include <linux/spi/spi.h> #include <linux/spi/ads7846.h> #include <mach/keypad.h> static struct at24_platform_data at24c04 = { .byte_len = SZ_4K / 8, .page_size = 16, }; static struct i2c_board_info __initdata mistral_i2c_board_info[] = { { /* NOTE: powered from LCD supply */ I2C_BOARD_INFO("24c04", 0x50), .platform_data = &at24c04, }, /* TODO when driver support is ready: * - optionally ov9640 camera sensor at 0x30 */ }; static const int osk_keymap[] = { /* KEY(col, row, code) */ KEY(0, 0, KEY_F1), /* SW4 */ KEY(0, 3, KEY_UP), /* (sw2/up) */ KEY(1, 1, KEY_LEFTCTRL), /* SW5 */ KEY(1, 2, KEY_LEFT), /* (sw2/left) */ KEY(2, 0, KEY_SPACE), /* SW3 */ KEY(2, 1, KEY_ESC), /* SW6 */ KEY(2, 2, KEY_DOWN), /* (sw2/down) */ KEY(3, 2, KEY_ENTER), /* (sw2/select) */ KEY(3, 3, KEY_RIGHT), /* (sw2/right) */ 0 }; static struct omap_kp_platform_data osk_kp_data = { .rows = 8, .cols = 8, .keymap = (int *) osk_keymap, .keymapsize = ARRAY_SIZE(osk_keymap), .delay = 9, }; static struct resource osk5912_kp_resources[] = { [0] = { .start = INT_KEYBOARD, .end = INT_KEYBOARD, .flags = IORESOURCE_IRQ, }, }; static struct platform_device osk5912_kp_device = { .name = "omap-keypad", .id = -1, .dev = { .platform_data = &osk_kp_data, }, .num_resources = ARRAY_SIZE(osk5912_kp_resources), .resource = osk5912_kp_resources, }; static struct omap_backlight_config mistral_bl_data = { .default_intensity = 0xa0, }; static struct platform_device mistral_bl_device = { .name = "omap-bl", .id = -1, .dev = { .platform_data = &mistral_bl_data, }, }; static struct platform_device osk5912_lcd_device = { .name = "lcd_osk", .id = -1, }; static struct platform_device *mistral_devices[] __initdata = { &osk5912_kp_device, &mistral_bl_device, &osk5912_lcd_device, }; static int mistral_get_pendown_state(void) { return !gpio_get_value(4); } static const struct ads7846_platform_data mistral_ts_info = { .model = 7846, .vref_delay_usecs = 100, /* internal, no capacitor */ .x_plate_ohms = 419, .y_plate_ohms = 486, .get_pendown_state = mistral_get_pendown_state, }; static struct spi_board_info __initdata mistral_boardinfo[] = { { /* MicroWire (bus 2) CS0 has an ads7846e */ .modalias = "ads7846", .platform_data = &mistral_ts_info, .irq = OMAP_GPIO_IRQ(4), .max_speed_hz = 120000 /* max sample rate at 3V */ * 26 /* command + data + overhead */, .bus_num = 2, .chip_select = 0, } }; #ifdef CONFIG_PM static irqreturn_t osk_mistral_wake_interrupt(int irq, void *ignored) { return IRQ_HANDLED; } #endif static void __init osk_mistral_init(void) { /* NOTE: we could actually tell if there's a Mistral board * attached, e.g. by trying to read something from the ads7846. * But this arch_init() code is too early for that, since we * can't talk to the ads or even the i2c eeprom. */ /* parallel camera interface */ omap_cfg_reg(J15_1610_CAM_LCLK); omap_cfg_reg(J18_1610_CAM_D7); omap_cfg_reg(J19_1610_CAM_D6); omap_cfg_reg(J14_1610_CAM_D5); omap_cfg_reg(K18_1610_CAM_D4); omap_cfg_reg(K19_1610_CAM_D3); omap_cfg_reg(K15_1610_CAM_D2); omap_cfg_reg(K14_1610_CAM_D1); omap_cfg_reg(L19_1610_CAM_D0); omap_cfg_reg(L18_1610_CAM_VS); omap_cfg_reg(L15_1610_CAM_HS); omap_cfg_reg(M19_1610_CAM_RSTZ); omap_cfg_reg(Y15_1610_CAM_OUTCLK); /* serial camera interface */ omap_cfg_reg(H19_1610_CAM_EXCLK); omap_cfg_reg(W13_1610_CCP_CLKM); omap_cfg_reg(Y12_1610_CCP_CLKP); /* CCP_DATAM CONFLICTS WITH UART1.TX (and serial console) */ /* omap_cfg_reg(Y14_1610_CCP_DATAM); */ omap_cfg_reg(W14_1610_CCP_DATAP); /* CAM_PWDN */ if (gpio_request(11, "cam_pwdn") == 0) { omap_cfg_reg(N20_1610_GPIO11); gpio_direction_output(11, 0); } else pr_debug("OSK+Mistral: CAM_PWDN is awol\n"); /* omap_cfg_reg(P19_1610_GPIO6); */ /* BUSY */ gpio_request(6, "ts_busy"); gpio_direction_input(6); omap_cfg_reg(P20_1610_GPIO4); /* PENIRQ */ gpio_request(4, "ts_int"); gpio_direction_input(4); set_irq_type(gpio_to_irq(4), IRQ_TYPE_EDGE_FALLING); spi_register_board_info(mistral_boardinfo, ARRAY_SIZE(mistral_boardinfo)); /* the sideways button (SW1) is for use as a "wakeup" button * * NOTE: The Mistral board has the wakeup button (SW1) wired * to the LCD 3.3V rail, which is powered down during suspend. * To allow this button to wake up the omap, work around this * HW bug by rewiring SW1 to use the main 3.3V rail. */ omap_cfg_reg(N15_1610_MPUIO2); if (gpio_request(OMAP_MPUIO(2), "wakeup") == 0) { int ret = 0; int irq = gpio_to_irq(OMAP_MPUIO(2)); gpio_direction_input(OMAP_MPUIO(2)); set_irq_type(irq, IRQ_TYPE_EDGE_RISING); #ifdef CONFIG_PM /* share the IRQ in case someone wants to use the * button for more than wakeup from system sleep. */ ret = request_irq(irq, &osk_mistral_wake_interrupt, IRQF_SHARED, "mistral_wakeup", &osk_mistral_wake_interrupt); if (ret != 0) { gpio_free(OMAP_MPUIO(2)); printk(KERN_ERR "OSK+Mistral: no wakeup irq, %d?\n", ret); } else enable_irq_wake(irq); #endif } else printk(KERN_ERR "OSK+Mistral: wakeup button is awol\n"); /* LCD: backlight, and power; power controls other devices on the * board, like the touchscreen, EEPROM, and wakeup (!) switch. */ omap_cfg_reg(PWL); if (gpio_request(2, "lcd_pwr") == 0) gpio_direction_output(2, 1); i2c_register_board_info(1, mistral_i2c_board_info, ARRAY_SIZE(mistral_i2c_board_info)); platform_add_devices(mistral_devices, ARRAY_SIZE(mistral_devices)); } #else static void __init osk_mistral_init(void) { } #endif #define EMIFS_CS3_VAL (0x88013141) static void __init osk_init(void) { u32 l; /* Workaround for wrong CS3 (NOR flash) timing * There are some U-Boot versions out there which configure * wrong CS3 memory timings. This mainly leads to CRC * or similar errors if you use NOR flash (e.g. with JFFS2) */ l = omap_readl(EMIFS_CCS(3)); if (l != EMIFS_CS3_VAL) omap_writel(EMIFS_CS3_VAL, EMIFS_CCS(3)); osk_flash_resource.end = osk_flash_resource.start = omap_cs3_phys(); osk_flash_resource.end += SZ_32M - 1; platform_add_devices(osk5912_devices, ARRAY_SIZE(osk5912_devices)); omap_board_config = osk_config; omap_board_config_size = ARRAY_SIZE(osk_config); l = omap_readl(USB_TRANSCEIVER_CTRL); l |= (3 << 1); omap_writel(l, USB_TRANSCEIVER_CTRL); omap_usb_init(&osk_usb_config); /* irq for tps65010 chip */ /* bootloader effectively does: omap_cfg_reg(U19_1610_MPUIO1); */ if (gpio_request(OMAP_MPUIO(1), "tps65010") == 0) gpio_direction_input(OMAP_MPUIO(1)); omap_serial_init(); omap_register_i2c_bus(1, 400, osk_i2c_board_info, ARRAY_SIZE(osk_i2c_board_info)); osk_mistral_init(); } static void __init osk_map_io(void) { omap1_map_common_io(); } MACHINE_START(OMAP_OSK, "TI-OSK") /* Maintainer: Dirk Behme <dirk.behme@de.bosch.com> */ .phys_io = 0xfff00000, .io_pg_offst = ((0xfef00000) >> 18) & 0xfffc, .boot_params = 0x10000100, .map_io = osk_map_io, .init_irq = osk_init_irq, .init_machine = osk_init, .timer = &omap_timer, MACHINE_END