ARM: OMAP3: Add basic support for Pandora handheld console (da177247) · Commits · e / devices / android_kernel_teracube_emerald

arch/arm/configs/omap3_pandora_defconfig

0 → 100644

+1409 −0

File added.

Preview size limit exceeded, changes collapsed.

arch/arm/mach-omap2/Kconfig

+4 −0

Original line number	Diff line number	Diff line
		@@ -55,3 +55,7 @@ config MACH_OMAP_LDP
		config MACH_OVERO
		bool "Gumstix Overo board"
		depends on ARCH_OMAP3 && ARCH_OMAP34XX

		config MACH_OMAP3_PANDORA
		bool "OMAP3 Pandora"
		depends on ARCH_OMAP3 && ARCH_OMAP34XX
		No newline at end of file

arch/arm/mach-omap2/Makefile

+1 −0

Original line number	Diff line number	Diff line
		@@ -32,4 +32,5 @@ obj-$(CONFIG_MACH_OMAP_APOLLON) += board-apollon.o
		obj-$(CONFIG_MACH_OMAP3_BEAGLE) += board-omap3beagle.o
		obj-$(CONFIG_MACH_OMAP_LDP) += board-ldp.o
		obj-$(CONFIG_MACH_OVERO) += board-overo.o
		obj-$(CONFIG_MACH_OMAP3_PANDORA) += board-omap3pandora.o

arch/arm/mach-omap2/board-omap3pandora.c

0 → 100644

+180 −0

Original line number	Diff line number	Diff line
		/*
		* 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