diff options
Diffstat (limited to 'arch/arm/mach-omap2/board-omap3pandora.c')
| -rw-r--r-- | arch/arm/mach-omap2/board-omap3pandora.c | 180 |
1 files changed, 180 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/board-omap3pandora.c b/arch/arm/mach-omap2/board-omap3pandora.c new file mode 100644 index 000000000000..7236c7be05b3 --- /dev/null +++ b/arch/arm/mach-omap2/board-omap3pandora.c @@ -0,0 +1,180 @@ +/* + * board-omap3pandora.c (Pandora Handheld Console) + * + * 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/init.h> +#include <linux/kernel.h> +#include <linux/platform_device.h> + +#include <linux/spi/spi.h> +#include <linux/spi/ads7846.h> +#include <linux/i2c/twl4030.h> + +#include <asm/mach-types.h> +#include <asm/mach/arch.h> +#include <asm/mach/map.h> + +#include <mach/board.h> +#include <mach/common.h> +#include <mach/gpio.h> +#include <mach/hardware.h> +#include <mach/mcspi.h> + +#define OMAP3_PANDORA_TS_GPIO 94 + +static struct omap_uart_config omap3pandora_uart_config __initdata = { + .enabled_uarts = (1 << 2), /* UART3 */ +}; + +static struct twl4030_gpio_platform_data omap3pandora_gpio_data = { + .gpio_base = OMAP_MAX_GPIO_LINES, + .irq_base = TWL4030_GPIO_IRQ_BASE, + .irq_end = TWL4030_GPIO_IRQ_END, +}; + +static struct twl4030_usb_data omap3pandora_usb_data = { + .usb_mode = T2_USB_MODE_ULPI, +}; + +static struct twl4030_platform_data omap3pandora_twldata = { + .irq_base = TWL4030_IRQ_BASE, + .irq_end = TWL4030_IRQ_END, + .gpio = &omap3pandora_gpio_data, + .usb = &omap3pandora_usb_data, +}; + +static struct i2c_board_info __initdata omap3pandora_i2c_boardinfo[] = { + { + I2C_BOARD_INFO("tps65950", 0x48), + .flags = I2C_CLIENT_WAKE, + .irq = INT_34XX_SYS_NIRQ, + .platform_data = &omap3pandora_twldata, + }, +}; + +static int __init omap3pandora_i2c_init(void) +{ + omap_register_i2c_bus(1, 2600, omap3pandora_i2c_boardinfo, + ARRAY_SIZE(omap3pandora_i2c_boardinfo)); + /* i2c2 pins are not connected */ + omap_register_i2c_bus(3, 400, NULL, 0); + return 0; +} + +static void __init omap3pandora_init_irq(void) +{ + omap2_init_common_hw(); + omap_init_irq(); + omap_gpio_init(); +} + +static void __init omap3pandora_ads7846_init(void) +{ + int gpio = OMAP3_PANDORA_TS_GPIO; + int ret; + + ret = gpio_request(gpio, "ads7846_pen_down"); + if (ret < 0) { + printk(KERN_ERR "Failed to request GPIO %d for " + "ads7846 pen down IRQ\n", gpio); + return; + } + + gpio_direction_input(gpio); +} + +static int ads7846_get_pendown_state(void) +{ + return !gpio_get_value(OMAP3_PANDORA_TS_GPIO); +} + +static struct ads7846_platform_data ads7846_config = { + .x_max = 0x0fff, + .y_max = 0x0fff, + .x_plate_ohms = 180, + .pressure_max = 255, + .debounce_max = 10, + .debounce_tol = 3, + .debounce_rep = 1, + .get_pendown_state = ads7846_get_pendown_state, + .keep_vref_on = 1, +}; + +static struct omap2_mcspi_device_config ads7846_mcspi_config = { + .turbo_mode = 0, + .single_channel = 1, /* 0: slave, 1: master */ +}; + +static struct spi_board_info omap3pandora_spi_board_info[] __initdata = { + { + .modalias = "ads7846", + .bus_num = 1, + .chip_select = 0, + .max_speed_hz = 1500000, + .controller_data = &ads7846_mcspi_config, + .irq = OMAP_GPIO_IRQ(OMAP3_PANDORA_TS_GPIO), + .platform_data = &ads7846_config, + } +}; + +static struct platform_device omap3pandora_lcd_device = { + .name = "pandora_lcd", + .id = -1, +}; + +static struct omap_lcd_config omap3pandora_lcd_config __initdata = { + .ctrl_name = "internal", +}; + +static struct omap_board_config_kernel omap3pandora_config[] __initdata = { + { OMAP_TAG_UART, &omap3pandora_uart_config }, + { OMAP_TAG_LCD, &omap3pandora_lcd_config }, +}; + +static struct platform_device *omap3pandora_devices[] __initdata = { + &omap3pandora_lcd_device, +}; + +static void __init omap3pandora_init(void) +{ + omap3pandora_i2c_init(); + platform_add_devices(omap3pandora_devices, + ARRAY_SIZE(omap3pandora_devices)); + omap_board_config = omap3pandora_config; + omap_board_config_size = ARRAY_SIZE(omap3pandora_config); + omap_serial_init(); + spi_register_board_info(omap3pandora_spi_board_info, + ARRAY_SIZE(omap3pandora_spi_board_info)); + omap3pandora_ads7846_init(); +} + +static void __init omap3pandora_map_io(void) +{ + omap2_set_globals_343x(); + omap2_map_common_io(); +} + +MACHINE_START(OMAP3_PANDORA, "Pandora Handheld Console") + .phys_io = 0x48000000, + .io_pg_offst = ((0xd8000000) >> 18) & 0xfffc, + .boot_params = 0x80000100, + .map_io = omap3pandora_map_io, + .init_irq = omap3pandora_init_irq, + .init_machine = omap3pandora_init, + .timer = &omap_timer, +MACHINE_END |