mirror of
https://github.com/torvalds/linux.git
synced 2024-12-21 10:31:54 +00:00
149 lines
3.6 KiB
C
149 lines
3.6 KiB
C
/*
|
|
* Copyright 2009 Freescale Semiconductor, Inc. All Rights Reserved.
|
|
*
|
|
* Author: Fabio Estevam <fabio.estevam@freescale.com>
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
/*
|
|
* This machine is known as:
|
|
* - i.MX27 3-Stack Development System
|
|
* - i.MX27 Platform Development Kit (i.MX27 PDK)
|
|
*/
|
|
|
|
#include <linux/platform_device.h>
|
|
#include <linux/gpio.h>
|
|
#include <linux/irq.h>
|
|
#include <asm/mach-types.h>
|
|
#include <asm/mach/arch.h>
|
|
#include <asm/mach/time.h>
|
|
#include <mach/hardware.h>
|
|
#include <mach/common.h>
|
|
#include <mach/iomux-mx27.h>
|
|
|
|
#include "devices-imx27.h"
|
|
|
|
#define SD1_EN_GPIO (GPIO_PORTB + 25)
|
|
|
|
static const int mx27pdk_pins[] __initconst = {
|
|
/* UART1 */
|
|
PE12_PF_UART1_TXD,
|
|
PE13_PF_UART1_RXD,
|
|
PE14_PF_UART1_CTS,
|
|
PE15_PF_UART1_RTS,
|
|
/* FEC */
|
|
PD0_AIN_FEC_TXD0,
|
|
PD1_AIN_FEC_TXD1,
|
|
PD2_AIN_FEC_TXD2,
|
|
PD3_AIN_FEC_TXD3,
|
|
PD4_AOUT_FEC_RX_ER,
|
|
PD5_AOUT_FEC_RXD1,
|
|
PD6_AOUT_FEC_RXD2,
|
|
PD7_AOUT_FEC_RXD3,
|
|
PD8_AF_FEC_MDIO,
|
|
PD9_AIN_FEC_MDC,
|
|
PD10_AOUT_FEC_CRS,
|
|
PD11_AOUT_FEC_TX_CLK,
|
|
PD12_AOUT_FEC_RXD0,
|
|
PD13_AOUT_FEC_RX_DV,
|
|
PD14_AOUT_FEC_RX_CLK,
|
|
PD15_AOUT_FEC_COL,
|
|
PD16_AIN_FEC_TX_ER,
|
|
PF23_AIN_FEC_TX_EN,
|
|
/* SDHC1 */
|
|
PE18_PF_SD1_D0,
|
|
PE19_PF_SD1_D1,
|
|
PE20_PF_SD1_D2,
|
|
PE21_PF_SD1_D3,
|
|
PE22_PF_SD1_CMD,
|
|
PE23_PF_SD1_CLK,
|
|
SD1_EN_GPIO | GPIO_GPIO | GPIO_OUT,
|
|
};
|
|
|
|
static const struct imxuart_platform_data uart_pdata __initconst = {
|
|
.flags = IMXUART_HAVE_RTSCTS,
|
|
};
|
|
|
|
/*
|
|
* Matrix keyboard
|
|
*/
|
|
|
|
static const uint32_t mx27_3ds_keymap[] = {
|
|
KEY(0, 0, KEY_UP),
|
|
KEY(0, 1, KEY_DOWN),
|
|
KEY(1, 0, KEY_RIGHT),
|
|
KEY(1, 1, KEY_LEFT),
|
|
KEY(1, 2, KEY_ENTER),
|
|
KEY(2, 0, KEY_F6),
|
|
KEY(2, 1, KEY_F8),
|
|
KEY(2, 2, KEY_F9),
|
|
KEY(2, 3, KEY_F10),
|
|
};
|
|
|
|
static const struct matrix_keymap_data mx27_3ds_keymap_data __initconst = {
|
|
.keymap = mx27_3ds_keymap,
|
|
.keymap_size = ARRAY_SIZE(mx27_3ds_keymap),
|
|
};
|
|
|
|
static int mx27_3ds_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
|
|
void *data)
|
|
{
|
|
return request_irq(IRQ_GPIOB(26), detect_irq, IRQF_TRIGGER_FALLING |
|
|
IRQF_TRIGGER_RISING, "sdhc1-card-detect", data);
|
|
}
|
|
|
|
static void mx27_3ds_sdhc1_exit(struct device *dev, void *data)
|
|
{
|
|
free_irq(IRQ_GPIOB(26), data);
|
|
}
|
|
|
|
static const struct imxmmc_platform_data sdhc1_pdata __initconst = {
|
|
.init = mx27_3ds_sdhc1_init,
|
|
.exit = mx27_3ds_sdhc1_exit,
|
|
};
|
|
|
|
static void mx27_3ds_sdhc1_enable_level_translator(void)
|
|
{
|
|
/* Turn on TXB0108 OE pin */
|
|
gpio_request(SD1_EN_GPIO, "sd1_enable");
|
|
gpio_direction_output(SD1_EN_GPIO, 1);
|
|
}
|
|
|
|
static void __init mx27pdk_init(void)
|
|
{
|
|
mxc_gpio_setup_multiple_pins(mx27pdk_pins, ARRAY_SIZE(mx27pdk_pins),
|
|
"mx27pdk");
|
|
mx27_3ds_sdhc1_enable_level_translator();
|
|
imx27_add_imx_uart0(&uart_pdata);
|
|
imx27_add_fec(NULL);
|
|
imx27_add_imx_keypad(&mx27_3ds_keymap_data);
|
|
imx27_add_mxc_mmc(0, &sdhc1_pdata);
|
|
}
|
|
|
|
static void __init mx27pdk_timer_init(void)
|
|
{
|
|
mx27_clocks_init(26000000);
|
|
}
|
|
|
|
static struct sys_timer mx27pdk_timer = {
|
|
.init = mx27pdk_timer_init,
|
|
};
|
|
|
|
MACHINE_START(MX27_3DS, "Freescale MX27PDK")
|
|
/* maintainer: Freescale Semiconductor, Inc. */
|
|
.boot_params = MX27_PHYS_OFFSET + 0x100,
|
|
.map_io = mx27_map_io,
|
|
.init_irq = mx27_init_irq,
|
|
.init_machine = mx27pdk_init,
|
|
.timer = &mx27pdk_timer,
|
|
MACHINE_END
|