diff options
Diffstat (limited to 'arch/arm/mach-omap2/board-overo.c')
| -rw-r--r-- | arch/arm/mach-omap2/board-overo.c | 571 |
1 files changed, 571 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/board-overo.c b/arch/arm/mach-omap2/board-overo.c new file mode 100644 index 000000000..2dae6ccd3 --- /dev/null +++ b/arch/arm/mach-omap2/board-overo.c @@ -0,0 +1,571 @@ +/* + * board-overo.c (Gumstix Overo) + * + * Initial code: Steve Sakoman <steve@sakoman.com> + * + * 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. + * + * 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., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + * + */ + +#include <linux/clk.h> +#include <linux/delay.h> +#include <linux/err.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/gpio.h> +#include <linux/kernel.h> +#include <linux/platform_device.h> +#include <linux/i2c/twl.h> +#include <linux/regulator/machine.h> +#include <linux/regulator/fixed.h> +#include <linux/spi/spi.h> + +#include <linux/mtd/mtd.h> +#include <linux/mtd/nand.h> +#include <linux/mtd/partitions.h> +#include <linux/mmc/host.h> +#include <linux/usb/phy.h> + +#include <linux/platform_data/mtd-nand-omap2.h> +#include <linux/platform_data/spi-omap2-mcspi.h> + +#include <asm/mach-types.h> +#include <asm/mach/arch.h> +#include <asm/mach/flash.h> +#include <asm/mach/map.h> + +#include <video/omapdss.h> +#include <video/omap-panel-data.h> + +#include "common.h" +#include "mux.h" +#include "sdram-micron-mt46h32m32lf-6.h" +#include "gpmc.h" +#include "hsmmc.h" +#include "board-flash.h" +#include "common-board-devices.h" + +#define NAND_CS 0 + +#define OVERO_GPIO_BT_XGATE 15 +#define OVERO_GPIO_W2W_NRESET 16 +#define OVERO_GPIO_PENDOWN 114 +#define OVERO_GPIO_BT_NRESET 164 +#define OVERO_GPIO_USBH_CPEN 168 +#define OVERO_GPIO_USBH_NRESET 183 + +#define OVERO_SMSC911X_CS 5 +#define OVERO_SMSC911X_GPIO 176 +#define OVERO_SMSC911X_NRESET 64 +#define OVERO_SMSC911X2_CS 4 +#define OVERO_SMSC911X2_GPIO 65 + +/* whether to register LCD35 instead of LCD43 */ +static bool overo_use_lcd35; + +#if defined(CONFIG_TOUCHSCREEN_ADS7846) || \ + defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE) + +/* fixed regulator for ads7846 */ +static struct regulator_consumer_supply ads7846_supply[] = { + REGULATOR_SUPPLY("vcc", "spi1.0"), +}; + +static struct regulator_init_data vads7846_regulator = { + .constraints = { + .valid_ops_mask = REGULATOR_CHANGE_STATUS, + }, + .num_consumer_supplies = ARRAY_SIZE(ads7846_supply), + .consumer_supplies = ads7846_supply, +}; + +static struct fixed_voltage_config vads7846 = { + .supply_name = "vads7846", + .microvolts = 3300000, /* 3.3V */ + .gpio = -EINVAL, + .startup_delay = 0, + .init_data = &vads7846_regulator, +}; + +static struct platform_device vads7846_device = { + .name = "reg-fixed-voltage", + .id = 1, + .dev = { + .platform_data = &vads7846, + }, +}; + +static void __init overo_ads7846_init(void) +{ + omap_ads7846_init(1, OVERO_GPIO_PENDOWN, 0, NULL); + platform_device_register(&vads7846_device); +} + +#else +static inline void __init overo_ads7846_init(void) { return; } +#endif + +#if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE) + +#include <linux/smsc911x.h> +#include "gpmc-smsc911x.h" + +static struct omap_smsc911x_platform_data smsc911x_cfg = { + .id = 0, + .cs = OVERO_SMSC911X_CS, + .gpio_irq = OVERO_SMSC911X_GPIO, + .gpio_reset = OVERO_SMSC911X_NRESET, + .flags = SMSC911X_USE_32BIT, +}; + +static struct omap_smsc911x_platform_data smsc911x2_cfg = { + .id = 1, + .cs = OVERO_SMSC911X2_CS, + .gpio_irq = OVERO_SMSC911X2_GPIO, + .gpio_reset = -EINVAL, + .flags = SMSC911X_USE_32BIT, +}; + +static void __init overo_init_smsc911x(void) +{ + gpmc_smsc911x_init(&smsc911x_cfg); + gpmc_smsc911x_init(&smsc911x2_cfg); +} + +#else +static inline void __init overo_init_smsc911x(void) { return; } +#endif + +/* DSS */ +#define OVERO_GPIO_LCD_EN 144 +#define OVERO_GPIO_LCD_BL 145 + +static struct connector_atv_platform_data overo_tv_pdata = { + .name = "tv", + .source = "venc.0", + .connector_type = OMAP_DSS_VENC_TYPE_SVIDEO, + .invert_polarity = false, +}; + +static struct platform_device overo_tv_connector_device = { + .name = "connector-analog-tv", + .id = 0, + .dev.platform_data = &overo_tv_pdata, +}; + +static const struct display_timing overo_lcd43_videomode = { + .pixelclock = { 0, 9200000, 0 }, + + .hactive = { 0, 480, 0 }, + .hfront_porch = { 0, 8, 0 }, + .hback_porch = { 0, 4, 0 }, + .hsync_len = { 0, 41, 0 }, + + .vactive = { 0, 272, 0 }, + .vfront_porch = { 0, 4, 0 }, + .vback_porch = { 0, 2, 0 }, + .vsync_len = { 0, 10, 0 }, + + .flags = DISPLAY_FLAGS_HSYNC_LOW | DISPLAY_FLAGS_VSYNC_LOW | + DISPLAY_FLAGS_DE_HIGH | DISPLAY_FLAGS_PIXDATA_POSEDGE, +}; + +static struct panel_dpi_platform_data overo_lcd43_pdata = { + .name = "lcd43", + .source = "dpi.0", + + .data_lines = 24, + + .display_timing = &overo_lcd43_videomode, + + .enable_gpio = OVERO_GPIO_LCD_EN, + .backlight_gpio = OVERO_GPIO_LCD_BL, +}; + +static struct platform_device overo_lcd43_device = { + .name = "panel-dpi", + .id = 0, + .dev.platform_data = &overo_lcd43_pdata, +}; + +static struct connector_dvi_platform_data overo_dvi_connector_pdata = { + .name = "dvi", + .source = "tfp410.0", + .i2c_bus_num = 3, +}; + +static struct platform_device overo_dvi_connector_device = { + .name = "connector-dvi", + .id = 0, + .dev.platform_data = &overo_dvi_connector_pdata, +}; + +static struct encoder_tfp410_platform_data overo_tfp410_pdata = { + .name = "tfp410.0", + .source = "dpi.0", + .data_lines = 24, + .power_down_gpio = -1, +}; + +static struct platform_device overo_tfp410_device = { + .name = "tfp410", + .id = 0, + .dev.platform_data = &overo_tfp410_pdata, +}; + +static struct omap_dss_board_info overo_dss_data = { + .default_display_name = "lcd43", +}; + +static void __init overo_display_init(void) +{ + omap_display_init(&overo_dss_data); + + if (!overo_use_lcd35) + platform_device_register(&overo_lcd43_device); + platform_device_register(&overo_tfp410_device); + platform_device_register(&overo_dvi_connector_device); + platform_device_register(&overo_tv_connector_device); +} + +static struct mtd_partition overo_nand_partitions[] = { + { + .name = "xloader", + .offset = 0, /* Offset = 0x00000 */ + .size = 4 * NAND_BLOCK_SIZE, + .mask_flags = MTD_WRITEABLE + }, + { + .name = "uboot", + .offset = MTDPART_OFS_APPEND, /* Offset = 0x80000 */ + .size = 14 * NAND_BLOCK_SIZE, + }, + { + .name = "uboot environment", + .offset = MTDPART_OFS_APPEND, /* Offset = 0x240000 */ + .size = 2 * NAND_BLOCK_SIZE, + }, + { + .name = "linux", + .offset = MTDPART_OFS_APPEND, /* Offset = 0x280000 */ + .size = 32 * NAND_BLOCK_SIZE, + }, + { + .name = "rootfs", + .offset = MTDPART_OFS_APPEND, /* Offset = 0x680000 */ + .size = MTDPART_SIZ_FULL, + }, +}; + +static struct omap2_hsmmc_info mmc[] = { + { + .mmc = 1, + .caps = MMC_CAP_4_BIT_DATA, + .gpio_cd = -EINVAL, + .gpio_wp = -EINVAL, + }, + { + .mmc = 2, + .caps = MMC_CAP_4_BIT_DATA, + .gpio_cd = -EINVAL, + .gpio_wp = -EINVAL, + .transceiver = true, + .ocr_mask = 0x00100000, /* 3.3V */ + }, + {} /* Terminator */ +}; + +static struct regulator_consumer_supply overo_vmmc1_supply[] = { + REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"), +}; + +#if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE) +#include <linux/leds.h> + +static struct gpio_led gpio_leds[] = { + { + .name = "overo:red:gpio21", + .default_trigger = "heartbeat", + .gpio = 21, + .active_low = true, + }, + { + .name = "overo:blue:gpio22", + .default_trigger = "none", + .gpio = 22, + .active_low = true, + }, + { + .name = "overo:blue:COM", + .default_trigger = "mmc0", + .gpio = -EINVAL, /* gets replaced */ + .active_low = true, + }, +}; + +static struct gpio_led_platform_data gpio_leds_pdata = { + .leds = gpio_leds, + .num_leds = ARRAY_SIZE(gpio_leds), +}; + +static struct platform_device gpio_leds_device = { + .name = "leds-gpio", + .id = -1, + .dev = { + .platform_data = &gpio_leds_pdata, + }, +}; + +static void __init overo_init_led(void) +{ + platform_device_register(&gpio_leds_device); +} + +#else +static inline void __init overo_init_led(void) { return; } +#endif + +#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE) +#include <linux/input.h> +#include <linux/gpio_keys.h> + +static struct gpio_keys_button gpio_buttons[] = { + { + .code = BTN_0, + .gpio = 23, + .desc = "button0", + .wakeup = 1, + }, + { + .code = BTN_1, + .gpio = 14, + .desc = "button1", + .wakeup = 1, + }, +}; + +static struct gpio_keys_platform_data gpio_keys_pdata = { + .buttons = gpio_buttons, + .nbuttons = ARRAY_SIZE(gpio_buttons), +}; + +static struct platform_device gpio_keys_device = { + .name = "gpio-keys", + .id = -1, + .dev = { + .platform_data = &gpio_keys_pdata, + }, +}; + +static void __init overo_init_keys(void) +{ + platform_device_register(&gpio_keys_device); +} + +#else +static inline void __init overo_init_keys(void) { return; } +#endif + +static int overo_twl_gpio_setup(struct device *dev, + unsigned gpio, unsigned ngpio) +{ +#if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE) + /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */ + gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1; +#endif + + return 0; +} + +static struct twl4030_gpio_platform_data overo_gpio_data = { + .use_leds = true, + .setup = overo_twl_gpio_setup, +}; + +static struct regulator_init_data overo_vmmc1 = { + .constraints = { + .min_uV = 1850000, + .max_uV = 3150000, + .valid_modes_mask = REGULATOR_MODE_NORMAL + | REGULATOR_MODE_STANDBY, + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE + | REGULATOR_CHANGE_MODE + | REGULATOR_CHANGE_STATUS, + }, + .num_consumer_supplies = ARRAY_SIZE(overo_vmmc1_supply), + .consumer_supplies = overo_vmmc1_supply, +}; + +static struct twl4030_platform_data overo_twldata = { + .gpio = &overo_gpio_data, + .vmmc1 = &overo_vmmc1, +}; + +static int __init overo_i2c_init(void) +{ + omap3_pmic_get_config(&overo_twldata, + TWL_COMMON_PDATA_USB | TWL_COMMON_PDATA_AUDIO, + TWL_COMMON_REGULATOR_VDAC | TWL_COMMON_REGULATOR_VPLL2); + + overo_twldata.vpll2->constraints.name = "VDVI"; + + omap3_pmic_init("tps65950", &overo_twldata); + /* i2c2 pins are used for gpio */ + omap_register_i2c_bus(3, 400, NULL, 0); + return 0; +} + +static struct panel_lb035q02_platform_data overo_lcd35_pdata = { + .name = "lcd35", + .source = "dpi.0", + + .data_lines = 24, + + .enable_gpio = OVERO_GPIO_LCD_EN, + .backlight_gpio = OVERO_GPIO_LCD_BL, +}; + +/* + * NOTE: We need to add either the lgphilips panel, or the lcd43 panel. The + * selection is done based on the overo_use_lcd35 field. If new SPI + * devices are added here, extra work is needed to make only the lgphilips panel + * affected by the overo_use_lcd35 field. + */ +static struct spi_board_info overo_spi_board_info[] __initdata = { + { + .modalias = "panel_lgphilips_lb035q02", + .bus_num = 1, + .chip_select = 1, + .max_speed_hz = 500000, + .mode = SPI_MODE_3, + .platform_data = &overo_lcd35_pdata, + }, +}; + +static int __init overo_spi_init(void) +{ + overo_ads7846_init(); + + if (overo_use_lcd35) { + spi_register_board_info(overo_spi_board_info, + ARRAY_SIZE(overo_spi_board_info)); + } + return 0; +} + +static struct usbhs_phy_data phy_data[] __initdata = { + { + .port = 2, + .reset_gpio = OVERO_GPIO_USBH_NRESET, + .vcc_gpio = -EINVAL, + }, +}; + +static struct usbhs_omap_platform_data usbhs_bdata __initdata = { + .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY, +}; + +#ifdef CONFIG_OMAP_MUX +static struct omap_board_mux board_mux[] __initdata = { + { .reg_offset = OMAP_MUX_TERMINATOR }, +}; +#endif + +static struct gpio overo_bt_gpios[] __initdata = { + { OVERO_GPIO_BT_XGATE, GPIOF_OUT_INIT_LOW, "lcd enable" }, + { OVERO_GPIO_BT_NRESET, GPIOF_OUT_INIT_HIGH, "lcd bl enable" }, +}; + +static struct regulator_consumer_supply dummy_supplies[] = { + REGULATOR_SUPPLY("vddvario", "smsc911x.0"), + REGULATOR_SUPPLY("vdd33a", "smsc911x.0"), + REGULATOR_SUPPLY("vddvario", "smsc911x.1"), + REGULATOR_SUPPLY("vdd33a", "smsc911x.1"), +}; + +static void __init overo_init(void) +{ + int ret; + + if (strstr(boot_command_line, "omapdss.def_disp=lcd35")) + overo_use_lcd35 = true; + + regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies)); + omap3_mux_init(board_mux, OMAP_PACKAGE_CBB); + overo_i2c_init(); + omap_hsmmc_init(mmc); + omap_serial_init(); + omap_sdrc_init(mt46h32m32lf6_sdrc_params, + mt46h32m32lf6_sdrc_params); + board_nand_init(overo_nand_partitions, + ARRAY_SIZE(overo_nand_partitions), NAND_CS, 0, NULL); + usb_bind_phy("musb-hdrc.0.auto", 0, "twl4030_usb"); + usb_musb_init(NULL); + + usbhs_init_phys(phy_data, ARRAY_SIZE(phy_data)); + usbhs_init(&usbhs_bdata); + overo_spi_init(); + overo_init_smsc911x(); + overo_init_led(); + overo_init_keys(); + omap_twl4030_audio_init("overo", NULL); + + overo_display_init(); + + /* Ensure SDRC pins are mux'd for self-refresh */ + omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT); + omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT); + + ret = gpio_request_one(OVERO_GPIO_W2W_NRESET, GPIOF_OUT_INIT_HIGH, + "OVERO_GPIO_W2W_NRESET"); + if (ret == 0) { + gpio_export(OVERO_GPIO_W2W_NRESET, 0); + gpio_set_value(OVERO_GPIO_W2W_NRESET, 0); + udelay(10); + gpio_set_value(OVERO_GPIO_W2W_NRESET, 1); + } else { + pr_err("could not obtain gpio for OVERO_GPIO_W2W_NRESET\n"); + } + + ret = gpio_request_array(overo_bt_gpios, ARRAY_SIZE(overo_bt_gpios)); + if (ret) { + pr_err("%s: could not obtain BT gpios\n", __func__); + } else { + gpio_export(OVERO_GPIO_BT_XGATE, 0); + gpio_export(OVERO_GPIO_BT_NRESET, 0); + gpio_set_value(OVERO_GPIO_BT_NRESET, 0); + mdelay(6); + gpio_set_value(OVERO_GPIO_BT_NRESET, 1); + } + + ret = gpio_request_one(OVERO_GPIO_USBH_CPEN, GPIOF_OUT_INIT_HIGH, + "OVERO_GPIO_USBH_CPEN"); + if (ret == 0) + gpio_export(OVERO_GPIO_USBH_CPEN, 0); + else + pr_err("could not obtain gpio for OVERO_GPIO_USBH_CPEN\n"); +} + +MACHINE_START(OVERO, "Gumstix Overo") + .atag_offset = 0x100, + .reserve = omap_reserve, + .map_io = omap3_map_io, + .init_early = omap35xx_init_early, + .init_irq = omap3_init_irq, + .init_machine = overo_init, + .init_late = omap35xx_init_late, + .init_time = omap3_sync32k_timer_init, + .restart = omap3xxx_restart, +MACHINE_END |