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/*
* Copyright (C) 2010 Eric Benard - eric@eukrea.com
*
* Based on pcm970-baseboard.c which is :
* Copyright (C) 2008 Juergen Beisert (kernel@pengutronix.de)
*
* 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 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 Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
#include <linux/types.h>
#include <linux/init.h>
#include <linux/gpio.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/leds.h>
#include <linux/platform_device.h>
#include <linux/gpio_keys.h>
#include <linux/input.h>
#include <linux/i2c.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include <asm/mach/map.h>
#include <mach/hardware.h>
#include <mach/common.h>
#include <mach/imx-uart.h>
#include <mach/iomux-mx51.h>
#include <mach/audmux.h>
#include "devices-imx51.h"
#include "devices.h"
static iomux_v3_cfg_t eukrea_mbimxsd_pads[] = {
/* LED */
MX51_PAD_NANDF_D10__GPIO3_30,
/* SWITCH */
_MX51_PAD_NANDF_D9__GPIO3_31 | MUX_PAD_CTRL(PAD_CTL_PUS_22K_UP |
PAD_CTL_PKE | PAD_CTL_SRE_FAST |
PAD_CTL_DSE_HIGH | PAD_CTL_PUE | PAD_CTL_HYS),
/* UART2 */
MX51_PAD_UART2_RXD__UART2_RXD,
MX51_PAD_UART2_TXD__UART2_TXD,
/* UART 3 */
MX51_PAD_UART3_RXD__UART3_RXD,
MX51_PAD_UART3_TXD__UART3_TXD,
MX51_PAD_KEY_COL4__UART3_RTS,
MX51_PAD_KEY_COL5__UART3_CTS,
/* SD */
MX51_PAD_SD1_CMD__SD1_CMD,
MX51_PAD_SD1_CLK__SD1_CLK,
MX51_PAD_SD1_DATA0__SD1_DATA0,
MX51_PAD_SD1_DATA1__SD1_DATA1,
MX51_PAD_SD1_DATA2__SD1_DATA2,
MX51_PAD_SD1_DATA3__SD1_DATA3,
/* SD1 CD */
_MX51_PAD_GPIO1_0__SD1_CD | MUX_PAD_CTRL(PAD_CTL_PUS_22K_UP |
PAD_CTL_PKE | PAD_CTL_SRE_FAST |
PAD_CTL_DSE_HIGH | PAD_CTL_PUE | PAD_CTL_HYS),
};
#define GPIO_LED1 IMX_GPIO_NR(3, 30)
#define GPIO_SWITCH1 IMX_GPIO_NR(3, 31)
static struct gpio_led eukrea_mbimxsd_leds[] = {
{
.name = "led1",
.default_trigger = "heartbeat",
.active_low = 1,
.gpio = GPIO_LED1,
},
};
static struct gpio_led_platform_data eukrea_mbimxsd_led_info = {
.leds = eukrea_mbimxsd_leds,
.num_leds = ARRAY_SIZE(eukrea_mbimxsd_leds),
};
static struct platform_device eukrea_mbimxsd_leds_gpio = {
.name = "leds-gpio",
.id = -1,
.dev = {
.platform_data = &eukrea_mbimxsd_led_info,
},
};
static struct gpio_keys_button eukrea_mbimxsd_gpio_buttons[] = {
{
.gpio = GPIO_SWITCH1,
.code = BTN_0,
.desc = "BP1",
.active_low = 1,
.wakeup = 1,
},
};
static struct gpio_keys_platform_data eukrea_mbimxsd_button_data = {
.buttons = eukrea_mbimxsd_gpio_buttons,
.nbuttons = ARRAY_SIZE(eukrea_mbimxsd_gpio_buttons),
};
static struct platform_device eukrea_mbimxsd_button_device = {
.name = "gpio-keys",
.id = -1,
.num_resources = 0,
.dev = {
.platform_data = &eukrea_mbimxsd_button_data,
}
};
static struct platform_device *platform_devices[] __initdata = {
&eukrea_mbimxsd_leds_gpio,
&eukrea_mbimxsd_button_device,
};
static const struct imxuart_platform_data uart_pdata __initconst = {
.flags = IMXUART_HAVE_RTSCTS,
};
static struct i2c_board_info eukrea_mbimxsd_i2c_devices[] = {
{
I2C_BOARD_INFO("tlv320aic23", 0x1a),
},
};
/*
* system init for baseboard usage. Will be called by cpuimx51sd init.
*
* Add platform devices present on this baseboard and init
* them from CPU side as far as required to use them later on
*/
void __init eukrea_mbimxsd51_baseboard_init(void)
{
if (mxc_iomux_v3_setup_multiple_pads(eukrea_mbimxsd_pads,
ARRAY_SIZE(eukrea_mbimxsd_pads)))
printk(KERN_ERR "error setting mbimxsd pads !\n");
imx51_add_imx_uart(1, NULL);
imx51_add_imx_uart(2, &uart_pdata);
imx51_add_sdhci_esdhc_imx(0, NULL);
gpio_request(GPIO_LED1, "LED1");
gpio_direction_output(GPIO_LED1, 1);
gpio_free(GPIO_LED1);
gpio_request(GPIO_SWITCH1, "SWITCH1");
gpio_direction_input(GPIO_SWITCH1);
gpio_free(GPIO_SWITCH1);
i2c_register_board_info(0, eukrea_mbimxsd_i2c_devices,
ARRAY_SIZE(eukrea_mbimxsd_i2c_devices));
platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
}
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