2 * Copyright 2009 Freescale Semiconductor, Inc. All Rights Reserved.
4 * Author: Fabio Estevam <fabio.estevam@freescale.com>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
18 * This machine is known as:
19 * - i.MX27 3-Stack Development System
20 * - i.MX27 Platform Development Kit (i.MX27 PDK)
23 #include <linux/platform_device.h>
24 #include <linux/gpio.h>
25 #include <linux/irq.h>
26 #include <asm/mach-types.h>
27 #include <asm/mach/arch.h>
28 #include <asm/mach/time.h>
29 #include <mach/hardware.h>
30 #include <mach/common.h>
31 #include <mach/iomux-mx27.h>
33 #include "devices-imx27.h"
35 #define SD1_EN_GPIO (GPIO_PORTB + 25)
37 static const int mx27pdk_pins[] __initconst = {
69 SD1_EN_GPIO | GPIO_GPIO | GPIO_OUT,
72 static const struct imxuart_platform_data uart_pdata __initconst = {
73 .flags = IMXUART_HAVE_RTSCTS,
80 static const uint32_t mx27_3ds_keymap[] = {
92 static const struct matrix_keymap_data mx27_3ds_keymap_data __initconst = {
93 .keymap = mx27_3ds_keymap,
94 .keymap_size = ARRAY_SIZE(mx27_3ds_keymap),
97 static int mx27_3ds_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
100 return request_irq(IRQ_GPIOB(26), detect_irq, IRQF_TRIGGER_FALLING |
101 IRQF_TRIGGER_RISING, "sdhc1-card-detect", data);
104 static void mx27_3ds_sdhc1_exit(struct device *dev, void *data)
106 free_irq(IRQ_GPIOB(26), data);
109 static const struct imxmmc_platform_data sdhc1_pdata __initconst = {
110 .init = mx27_3ds_sdhc1_init,
111 .exit = mx27_3ds_sdhc1_exit,
114 static void mx27_3ds_sdhc1_enable_level_translator(void)
116 /* Turn on TXB0108 OE pin */
117 gpio_request(SD1_EN_GPIO, "sd1_enable");
118 gpio_direction_output(SD1_EN_GPIO, 1);
121 static void __init mx27pdk_init(void)
123 mxc_gpio_setup_multiple_pins(mx27pdk_pins, ARRAY_SIZE(mx27pdk_pins),
125 mx27_3ds_sdhc1_enable_level_translator();
126 imx27_add_imx_uart0(&uart_pdata);
128 imx27_add_imx_keypad(&mx27_3ds_keymap_data);
129 imx27_add_mxc_mmc(0, &sdhc1_pdata);
132 static void __init mx27pdk_timer_init(void)
134 mx27_clocks_init(26000000);
137 static struct sys_timer mx27pdk_timer = {
138 .init = mx27pdk_timer_init,
141 MACHINE_START(MX27_3DS, "Freescale MX27PDK")
142 /* maintainer: Freescale Semiconductor, Inc. */
143 .boot_params = MX27_PHYS_OFFSET + 0x100,
144 .map_io = mx27_map_io,
145 .init_irq = mx27_init_irq,
146 .init_machine = mx27pdk_init,
147 .timer = &mx27pdk_timer,