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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/leds.h>
#include <linux/platform_device.h>
#include <linux/input.h>
#include <linux/i2c.h>
#include <video/platform_lcd.h>
#include <linux/backlight.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/iomux-mx51.h>
#include "devices-imx51.h"
static iomux_v3_cfg_t eukrea_mbimxsd51_pads[] = {
/* LED */
MX51_PAD_NANDF_D10__GPIO3_30,
/* SWITCH */
NEW_PAD_CTRL(MX51_PAD_NANDF_D9__GPIO3_31, 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 */
NEW_PAD_CTRL(MX51_PAD_GPIO1_0__SD1_CD, PAD_CTL_PUS_22K_UP |
PAD_CTL_PKE | PAD_CTL_SRE_FAST |
PAD_CTL_DSE_HIGH | PAD_CTL_PUE | PAD_CTL_HYS),
/* SSI */
MX51_PAD_AUD3_BB_TXD__AUD3_TXD,
MX51_PAD_AUD3_BB_RXD__AUD3_RXD,
MX51_PAD_AUD3_BB_CK__AUD3_TXC,
MX51_PAD_AUD3_BB_FS__AUD3_TXFS,
/* LCD Backlight */
MX51_PAD_DI1_D1_CS__GPIO3_4,
/* LCD RST */
MX51_PAD_CSI1_D9__GPIO3_13,
};
#define GPIO_LED1 IMX_GPIO_NR(3, 30)
#define GPIO_SWITCH1 IMX_GPIO_NR(3, 31)
#define GPIO_LCDRST IMX_GPIO_NR(3, 13)
#define GPIO_LCDBL IMX_GPIO_NR(3, 4)
static void eukrea_mbimxsd51_lcd_power_set(struct plat_lcd_data *pd,
unsigned int power)
{
if (power)
gpio_direction_output(GPIO_LCDRST, 1);
else
gpio_direction_output(GPIO_LCDRST, 0);
}
static struct plat_lcd_data eukrea_mbimxsd51_lcd_power_data = {
.set_power = eukrea_mbimxsd51_lcd_power_set,
};
static struct platform_device eukrea_mbimxsd51_lcd_powerdev = {
.name = "platform-lcd",
.dev.platform_data = &eukrea_mbimxsd51_lcd_power_data,
};
static void eukrea_mbimxsd51_bl_set_intensity(int intensity)
{
if (intensity)
gpio_direction_output(GPIO_LCDBL, 1);
else
gpio_direction_output(GPIO_LCDBL, 0);
}
static struct generic_bl_info eukrea_mbimxsd51_bl_info = {
.name = "eukrea_mbimxsd51-bl",
.max_intensity = 0xff,
.default_intensity = 0xff,
.set_bl_intensity = eukrea_mbimxsd51_bl_set_intensity,
};
static struct platform_device eukrea_mbimxsd51_bl_dev = {
.name = "generic-bl",
.id = 1,
.dev = {
.platform_data = &eukrea_mbimxsd51_bl_info,
},
};
static const struct gpio_led eukrea_mbimxsd51_leds[] __initconst = {
{
.name = "led1",
.default_trigger = "heartbeat",
.active_low = 1,
.gpio = GPIO_LED1,
},
};
static const struct gpio_led_platform_data
eukrea_mbimxsd51_led_info __initconst = {
.leds = eukrea_mbimxsd51_leds,
.num_leds = ARRAY_SIZE(eukrea_mbimxsd51_leds),
};
static struct gpio_keys_button eukrea_mbimxsd51_gpio_buttons[] = {
{
.gpio = GPIO_SWITCH1,
.code = BTN_0,
.desc = "BP1",
.active_low = 1,
.wakeup = 1,
},
};
static const struct gpio_keys_platform_data
eukrea_mbimxsd51_button_data __initconst = {
.buttons = eukrea_mbimxsd51_gpio_buttons,
.nbuttons = ARRAY_SIZE(eukrea_mbimxsd51_gpio_buttons),
};
static const struct imxuart_platform_data uart_pdata __initconst = {
.flags = IMXUART_HAVE_RTSCTS,
};
static struct i2c_board_info eukrea_mbimxsd51_i2c_devices[] = {
{
I2C_BOARD_INFO("tlv320aic23", 0x1a),
},
};
static const
struct imx_ssi_platform_data eukrea_mbimxsd51_ssi_pdata __initconst = {
.flags = IMX_SSI_SYN | IMX_SSI_NET | IMX_SSI_USE_I2S_SLAVE,
};
static int screen_type;
static int __init eukrea_mbimxsd51_screen_type(char *options)
{
if (!strcmp(options, "dvi"))
screen_type = 1;
else if (!strcmp(options, "tft"))
screen_type = 0;
return 0;
}
__setup("screen_type=", eukrea_mbimxsd51_screen_type);
/*
* 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_mbimxsd51_pads,
ARRAY_SIZE(eukrea_mbimxsd51_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);
imx51_add_imx_ssi(0, &eukrea_mbimxsd51_ssi_pdata);
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);
gpio_request(GPIO_LCDRST, "LCDRST");
gpio_direction_output(GPIO_LCDRST, 0);
gpio_request(GPIO_LCDBL, "LCDBL");
gpio_direction_output(GPIO_LCDBL, 0);
if (!screen_type) {
platform_device_register(&eukrea_mbimxsd51_bl_dev);
platform_device_register(&eukrea_mbimxsd51_lcd_powerdev);
} else {
gpio_free(GPIO_LCDRST);
gpio_free(GPIO_LCDBL);
}
i2c_register_board_info(0, eukrea_mbimxsd51_i2c_devices,
ARRAY_SIZE(eukrea_mbimxsd51_i2c_devices));
gpio_led_register_device(-1, &eukrea_mbimxsd51_led_info);
imx_add_gpio_keys(&eukrea_mbimxsd51_button_data);
}
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