167 lines
4.3 KiB
C
167 lines
4.3 KiB
C
/*
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* Copyright (C) 2010 Eric Benard - eric@eukrea.com
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*
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* Based on pcm970-baseboard.c which is :
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* Copyright (C) 2008 Juergen Beisert (kernel@pengutronix.de)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*/
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#include <linux/types.h>
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#include <linux/init.h>
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#include <linux/gpio.h>
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#include <linux/interrupt.h>
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#include <linux/irq.h>
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#include <linux/leds.h>
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#include <linux/platform_device.h>
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#include <linux/gpio_keys.h>
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#include <linux/input.h>
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#include <linux/i2c.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/time.h>
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#include <asm/mach/map.h>
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#include <mach/hardware.h>
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#include <mach/common.h>
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#include <mach/imx-uart.h>
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#include <mach/iomux-mx51.h>
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#include <mach/audmux.h>
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#include "devices-imx51.h"
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#include "devices.h"
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#define MBIMXSD_GPIO_3_31 IOMUX_PAD(0x554, 0x16C, 3, 0x0, 0, \
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MX51_PAD_CTRL_1 | PAD_CTL_PUS_22K_UP)
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static struct pad_desc eukrea_mbimxsd_pads[] = {
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/* LED */
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MX51_PAD_NANDF_D10__GPIO_3_30,
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/* SWITCH */
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MBIMXSD_GPIO_3_31,
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/* UART2 */
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MX51_PAD_UART2_RXD__UART2_RXD,
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MX51_PAD_UART2_TXD__UART2_TXD,
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/* UART 3 */
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MX51_PAD_UART3_RXD__UART3_RXD,
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MX51_PAD_UART3_TXD__UART3_TXD,
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MX51_PAD_KEY_COL4__UART3_RTS,
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MX51_PAD_KEY_COL5__UART3_CTS,
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/* SD */
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MX51_PAD_SD1_CMD__SD1_CMD,
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MX51_PAD_SD1_CLK__SD1_CLK,
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MX51_PAD_SD1_DATA0__SD1_DATA0,
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MX51_PAD_SD1_DATA1__SD1_DATA1,
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MX51_PAD_SD1_DATA2__SD1_DATA2,
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MX51_PAD_SD1_DATA3__SD1_DATA3,
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};
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#define GPIO_LED1 (2 * 32 + 30)
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#define GPIO_SWITCH1 (2 * 32 + 31)
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static struct gpio_led eukrea_mbimxsd_leds[] = {
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{
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.name = "led1",
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.default_trigger = "heartbeat",
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.active_low = 1,
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.gpio = GPIO_LED1,
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},
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};
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static struct gpio_led_platform_data eukrea_mbimxsd_led_info = {
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.leds = eukrea_mbimxsd_leds,
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.num_leds = ARRAY_SIZE(eukrea_mbimxsd_leds),
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};
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static struct platform_device eukrea_mbimxsd_leds_gpio = {
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.name = "leds-gpio",
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.id = -1,
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.dev = {
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.platform_data = &eukrea_mbimxsd_led_info,
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},
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};
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static struct gpio_keys_button eukrea_mbimxsd_gpio_buttons[] = {
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{
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.gpio = GPIO_SWITCH1,
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.code = BTN_0,
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.desc = "BP1",
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.active_low = 1,
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.wakeup = 1,
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},
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};
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static struct gpio_keys_platform_data eukrea_mbimxsd_button_data = {
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.buttons = eukrea_mbimxsd_gpio_buttons,
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.nbuttons = ARRAY_SIZE(eukrea_mbimxsd_gpio_buttons),
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};
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static struct platform_device eukrea_mbimxsd_button_device = {
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.name = "gpio-keys",
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.id = -1,
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.num_resources = 0,
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.dev = {
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.platform_data = &eukrea_mbimxsd_button_data,
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}
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};
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static struct platform_device *platform_devices[] __initdata = {
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&eukrea_mbimxsd_leds_gpio,
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&eukrea_mbimxsd_button_device,
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};
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static const struct imxuart_platform_data uart_pdata __initconst = {
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.flags = IMXUART_HAVE_RTSCTS,
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};
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static struct i2c_board_info eukrea_mbimxsd_i2c_devices[] = {
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{
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I2C_BOARD_INFO("tlv320aic23", 0x1a),
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},
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};
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/*
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* system init for baseboard usage. Will be called by cpuimx51sd init.
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*
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* Add platform devices present on this baseboard and init
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* them from CPU side as far as required to use them later on
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*/
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void __init eukrea_mbimxsd51_baseboard_init(void)
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{
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if (mxc_iomux_v3_setup_multiple_pads(eukrea_mbimxsd_pads,
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ARRAY_SIZE(eukrea_mbimxsd_pads)))
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printk(KERN_ERR "error setting mbimxsd pads !\n");
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imx51_add_imx_uart(1, NULL);
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imx51_add_imx_uart(2, &uart_pdata);
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imx51_add_esdhc(0, NULL);
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gpio_request(GPIO_LED1, "LED1");
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gpio_direction_output(GPIO_LED1, 1);
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gpio_free(GPIO_LED1);
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gpio_request(GPIO_SWITCH1, "SWITCH1");
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gpio_direction_input(GPIO_SWITCH1);
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gpio_free(GPIO_SWITCH1);
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i2c_register_board_info(0, eukrea_mbimxsd_i2c_devices,
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ARRAY_SIZE(eukrea_mbimxsd_i2c_devices));
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platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
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}
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