mirror of https://gitee.com/openkylin/linux.git
152 lines
3.6 KiB
C
152 lines
3.6 KiB
C
/*
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* Copyright 2009 Freescale Semiconductor, Inc. All Rights Reserved.
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*
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* Author: Fabio Estevam <fabio.estevam@freescale.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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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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/*
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* This machine is known as:
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* - i.MX27 3-Stack Development System
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* - i.MX27 Platform Development Kit (i.MX27 PDK)
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*/
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#include <linux/platform_device.h>
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#include <linux/gpio.h>
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#include <linux/input/matrix_keypad.h>
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#include <linux/irq.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 <mach/hardware.h>
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#include <mach/common.h>
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#include <mach/iomux-mx27.h>
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#include <mach/mmc.h>
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#include "devices-imx27.h"
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#include "devices.h"
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#define SD1_EN_GPIO (GPIO_PORTB + 25)
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static const int mx27pdk_pins[] __initconst = {
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/* UART1 */
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PE12_PF_UART1_TXD,
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PE13_PF_UART1_RXD,
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PE14_PF_UART1_CTS,
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PE15_PF_UART1_RTS,
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/* FEC */
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PD0_AIN_FEC_TXD0,
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PD1_AIN_FEC_TXD1,
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PD2_AIN_FEC_TXD2,
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PD3_AIN_FEC_TXD3,
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PD4_AOUT_FEC_RX_ER,
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PD5_AOUT_FEC_RXD1,
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PD6_AOUT_FEC_RXD2,
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PD7_AOUT_FEC_RXD3,
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PD8_AF_FEC_MDIO,
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PD9_AIN_FEC_MDC,
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PD10_AOUT_FEC_CRS,
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PD11_AOUT_FEC_TX_CLK,
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PD12_AOUT_FEC_RXD0,
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PD13_AOUT_FEC_RX_DV,
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PD14_AOUT_FEC_RX_CLK,
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PD15_AOUT_FEC_COL,
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PD16_AIN_FEC_TX_ER,
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PF23_AIN_FEC_TX_EN,
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/* SDHC1 */
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PE18_PF_SD1_D0,
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PE19_PF_SD1_D1,
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PE20_PF_SD1_D2,
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PE21_PF_SD1_D3,
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PE22_PF_SD1_CMD,
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PE23_PF_SD1_CLK,
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SD1_EN_GPIO | GPIO_GPIO | GPIO_OUT,
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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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/*
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* Matrix keyboard
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*/
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static const uint32_t mx27_3ds_keymap[] = {
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KEY(0, 0, KEY_UP),
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KEY(0, 1, KEY_DOWN),
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KEY(1, 0, KEY_RIGHT),
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KEY(1, 1, KEY_LEFT),
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KEY(1, 2, KEY_ENTER),
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KEY(2, 0, KEY_F6),
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KEY(2, 1, KEY_F8),
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KEY(2, 2, KEY_F9),
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KEY(2, 3, KEY_F10),
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};
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static struct matrix_keymap_data mx27_3ds_keymap_data = {
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.keymap = mx27_3ds_keymap,
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.keymap_size = ARRAY_SIZE(mx27_3ds_keymap),
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};
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static int mx27_3ds_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
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void *data)
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{
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return request_irq(IRQ_GPIOB(26), detect_irq, IRQF_TRIGGER_FALLING |
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IRQF_TRIGGER_RISING, "sdhc1-card-detect", data);
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}
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static void mx27_3ds_sdhc1_exit(struct device *dev, void *data)
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{
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free_irq(IRQ_GPIOB(26), data);
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}
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static struct imxmmc_platform_data sdhc1_pdata = {
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.init = mx27_3ds_sdhc1_init,
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.exit = mx27_3ds_sdhc1_exit,
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};
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static void mx27_3ds_sdhc1_enable_level_translator(void)
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{
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/* Turn on TXB0108 OE pin */
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gpio_request(SD1_EN_GPIO, "sd1_enable");
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gpio_direction_output(SD1_EN_GPIO, 1);
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}
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static void __init mx27pdk_init(void)
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{
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mxc_gpio_setup_multiple_pins(mx27pdk_pins, ARRAY_SIZE(mx27pdk_pins),
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"mx27pdk");
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mx27_3ds_sdhc1_enable_level_translator();
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imx27_add_imx_uart0(&uart_pdata);
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imx27_add_fec(NULL);
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mxc_register_device(&imx_kpp_device, &mx27_3ds_keymap_data);
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mxc_register_device(&mxc_sdhc_device0, &sdhc1_pdata);
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}
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static void __init mx27pdk_timer_init(void)
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{
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mx27_clocks_init(26000000);
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}
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static struct sys_timer mx27pdk_timer = {
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.init = mx27pdk_timer_init,
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};
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MACHINE_START(MX27_3DS, "Freescale MX27PDK")
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/* maintainer: Freescale Semiconductor, Inc. */
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.boot_params = MX27_PHYS_OFFSET + 0x100,
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.map_io = mx27_map_io,
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.init_irq = mx27_init_irq,
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.init_machine = mx27pdk_init,
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.timer = &mx27pdk_timer,
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MACHINE_END
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