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d0b1eabc7b
Signed-off-by: Daniel Mack <daniel@caiaq.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
135 lines
3.4 KiB
C
135 lines
3.4 KiB
C
/*
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* LILLY-1131 development board support
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*
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* Copyright (c) 2009 Daniel Mack <daniel@caiaq.de>
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*
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* based on code for other MX31 boards,
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*
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* Copyright 2005-2007 Freescale Semiconductor
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* Copyright (c) 2009 Alberto Panizzo <maramaopercheseimorto@gmail.com>
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* Copyright (C) 2009 Valentin Longchamp, EPFL Mobots group
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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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* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <linux/kernel.h>
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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 <asm/mach-types.h>
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#include <asm/mach/arch.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-mx3.h>
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#include <mach/board-mx31lilly.h>
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#include <mach/mmc.h>
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#include "devices.h"
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/*
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* This file contains board-specific initialization routines for the
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* LILLY-1131 development board. If you design an own baseboard for the
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* module, use this file as base for support code.
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*/
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static unsigned int lilly_db_board_pins[] __initdata = {
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MX31_PIN_CTS1__CTS1,
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MX31_PIN_RTS1__RTS1,
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MX31_PIN_TXD1__TXD1,
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MX31_PIN_RXD1__RXD1,
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MX31_PIN_SD1_DATA3__SD1_DATA3,
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MX31_PIN_SD1_DATA2__SD1_DATA2,
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MX31_PIN_SD1_DATA1__SD1_DATA1,
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MX31_PIN_SD1_DATA0__SD1_DATA0,
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MX31_PIN_SD1_CLK__SD1_CLK,
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MX31_PIN_SD1_CMD__SD1_CMD,
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};
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/* UART */
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static struct imxuart_platform_data uart_pdata __initdata = {
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.flags = IMXUART_HAVE_RTSCTS,
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};
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/* MMC support */
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static int mxc_mmc1_get_ro(struct device *dev)
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{
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return gpio_get_value(IOMUX_TO_GPIO(MX31_PIN_LCS0));
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}
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static int gpio_det, gpio_wp;
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static int mxc_mmc1_init(struct device *dev,
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irq_handler_t detect_irq, void *data)
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{
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int ret;
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gpio_det = IOMUX_TO_GPIO(MX31_PIN_GPIO1_1);
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gpio_wp = IOMUX_TO_GPIO(MX31_PIN_LCS0);
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ret = gpio_request(gpio_det, "MMC detect");
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if (ret)
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return ret;
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ret = gpio_request(gpio_wp, "MMC w/p");
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if (ret)
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goto exit_free_det;
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gpio_direction_input(gpio_det);
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gpio_direction_input(gpio_wp);
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ret = request_irq(IOMUX_TO_IRQ(MX31_PIN_GPIO1_1), detect_irq,
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IRQF_DISABLED | IRQF_TRIGGER_FALLING,
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"MMC detect", data);
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if (ret)
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goto exit_free_wp;
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return 0;
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exit_free_wp:
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gpio_free(gpio_wp);
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exit_free_det:
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gpio_free(gpio_det);
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return ret;
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}
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static void mxc_mmc1_exit(struct device *dev, void *data)
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{
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gpio_free(gpio_det);
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gpio_free(gpio_wp);
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free_irq(IOMUX_TO_IRQ(MX31_PIN_GPIO1_1), data);
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}
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static struct imxmmc_platform_data mmc_pdata = {
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.get_ro = mxc_mmc1_get_ro,
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.init = mxc_mmc1_init,
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.exit = mxc_mmc1_exit,
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};
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void __init mx31lilly_db_init(void)
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{
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mxc_iomux_setup_multiple_pins(lilly_db_board_pins,
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ARRAY_SIZE(lilly_db_board_pins),
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"development board pins");
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mxc_register_device(&mxc_uart_device0, &uart_pdata);
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mxc_register_device(&mxcsdhc_device0, &mmc_pdata);
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}
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