/*
* 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>
#include "mmc-twl4030.h"
#define OMAP3_PANDORA_TS_GPIO 94
static struct twl4030_hsmmc_info omap3pandora_mmc[] = {
{
.mmc = 1,
.wires = 4,
.gpio_cd = -EINVAL,
.gpio_wp = 126,
.ext_clock = 0,
},
{
.mmc = 2,
.wires = 4,
.gpio_cd = -EINVAL,
.gpio_wp = 127,
.ext_clock = 1,
.transceiver = true,
},
{
.mmc = 3,
.wires = 4,
.gpio_cd = -EINVAL,
.gpio_wp = -EINVAL,
},
{} /* Terminator */
};
static struct omap_uart_config omap3pandora_uart_config __initdata = {
.enabled_uarts = (1 << 2), /* UART3 */
};
static int omap3pandora_twl_gpio_setup(struct device *dev,
unsigned gpio, unsigned ngpio)
{
/* gpio + {0,1} is "mmc{0,1}_cd" (input/IRQ) */
omap3pandora_mmc[0].gpio_cd = gpio + 0;
omap3pandora_mmc[1].gpio_cd = gpio + 1;
twl4030_mmc_init(omap3pandora_mmc);
return 0;
}
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,
.setup = omap3pandora_twl_gpio_setup,
};
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
