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Release 4.17 arch/arm/mach-imx/mx31lite-db.c

/*
 *  LogicPD i.MX31 SOM-LV development board support
 *
 *    Copyright (c) 2009 Daniel Mack <daniel@caiaq.de>
 *
 *  based on code for other MX31 boards,
 *
 *    Copyright 2005-2007 Freescale Semiconductor
 *    Copyright (c) 2009 Alberto Panizzo <maramaopercheseimorto@gmail.com>
 *    Copyright (C) 2009 Valentin Longchamp, EPFL Mobots group
 *
 * 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.
 */

#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/init.h>
#include <linux/gpio.h>
#include <linux/leds.h>
#include <linux/platform_device.h>

#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>

#include "board-mx31lite.h"
#include "common.h"
#include "devices-imx31.h"
#include "hardware.h"
#include "iomux-mx3.h"

/*
 * This file contains board-specific initialization routines for the
 * LogicPD i.MX31 SOM-LV development board, aka 'LiteKit'.
 * If you design an own baseboard for the module, use this file as base
 * for support code.
 */


static unsigned int litekit_db_board_pins[] __initdata = {
	/* SDHC1 */
	MX31_PIN_SD1_DATA0__SD1_DATA0,
	MX31_PIN_SD1_DATA1__SD1_DATA1,
	MX31_PIN_SD1_DATA2__SD1_DATA2,
	MX31_PIN_SD1_DATA3__SD1_DATA3,
	MX31_PIN_SD1_CLK__SD1_CLK,
	MX31_PIN_SD1_CMD__SD1_CMD,
};

/* MMC */



static int gpio_det, gpio_wp;


#define MMC_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
                     PAD_CTL_ODE_CMOS)


static int mxc_mmc1_get_ro(struct device *dev) { return gpio_get_value(IOMUX_TO_GPIO(MX31_PIN_GPIO1_6)); }

Contributors

PersonTokensPropCommitsCommitProp
Daniel Mack1995.00%150.00%
Vladimir Zapolskiy15.00%150.00%
Total20100.00%2100.00%


static int mxc_mmc1_init(struct device *dev, irq_handler_t detect_irq, void *data) { int ret; gpio_det = IOMUX_TO_GPIO(MX31_PIN_DCD_DCE1); gpio_wp = IOMUX_TO_GPIO(MX31_PIN_GPIO1_6); mxc_iomux_set_pad(MX31_PIN_SD1_DATA0, MMC_PAD_CFG | PAD_CTL_PUE_PUD | PAD_CTL_100K_PU); mxc_iomux_set_pad(MX31_PIN_SD1_DATA1, MMC_PAD_CFG | PAD_CTL_PUE_PUD | PAD_CTL_100K_PU); mxc_iomux_set_pad(MX31_PIN_SD1_DATA2, MMC_PAD_CFG | PAD_CTL_PUE_PUD | PAD_CTL_100K_PU); mxc_iomux_set_pad(MX31_PIN_SD1_DATA3, MMC_PAD_CFG | PAD_CTL_PUE_PUD | PAD_CTL_100K_PU); mxc_iomux_set_pad(MX31_PIN_SD1_CMD, MMC_PAD_CFG | PAD_CTL_PUE_PUD | PAD_CTL_100K_PU); mxc_iomux_set_pad(MX31_PIN_SD1_CLK, MMC_PAD_CFG); ret = gpio_request(gpio_det, "MMC detect"); if (ret) return ret; ret = gpio_request(gpio_wp, "MMC w/p"); if (ret) goto exit_free_det; gpio_direction_input(gpio_det); gpio_direction_input(gpio_wp); ret = request_irq(gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_DCD_DCE1)), detect_irq, IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, "MMC detect", data); if (ret) goto exit_free_wp; return 0; exit_free_wp: gpio_free(gpio_wp); exit_free_det: gpio_free(gpio_det); return ret; }

Contributors

PersonTokensPropCommitsCommitProp
Daniel Mack16285.71%133.33%
Vladimir Zapolskiy2312.17%133.33%
Shawn Guo42.12%133.33%
Total189100.00%3100.00%


static void mxc_mmc1_exit(struct device *dev, void *data) { gpio_free(gpio_det); gpio_free(gpio_wp); free_irq(gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_DCD_DCE1)), data); }

Contributors

PersonTokensPropCommitsCommitProp
Daniel Mack3386.84%133.33%
Shawn Guo410.53%133.33%
Vladimir Zapolskiy12.63%133.33%
Total38100.00%3100.00%

static const struct imxmmc_platform_data mmc_pdata __initconst = { .get_ro = mxc_mmc1_get_ro, .init = mxc_mmc1_init, .exit = mxc_mmc1_exit, }; /* GPIO LEDs */ static const struct gpio_led litekit_leds[] __initconst = { { .name = "GPIO0", .gpio = IOMUX_TO_GPIO(MX31_PIN_COMPARE), .active_low = 1, .default_state = LEDS_GPIO_DEFSTATE_OFF, }, { .name = "GPIO1", .gpio = IOMUX_TO_GPIO(MX31_PIN_CAPTURE), .active_low = 1, .default_state = LEDS_GPIO_DEFSTATE_OFF, } }; static const struct gpio_led_platform_data litekit_led_platform_data __initconst = { .leds = litekit_leds, .num_leds = ARRAY_SIZE(litekit_leds), };
void __init mx31lite_db_init(void) { mxc_iomux_setup_multiple_pins(litekit_db_board_pins, ARRAY_SIZE(litekit_db_board_pins), "development board pins"); imx31_add_mxc_mmc(0, &mmc_pdata); gpio_led_register_device(-1, &litekit_led_platform_data); imx31_add_imx2_wdt(); imx31_add_mxc_rtc(); }

Contributors

PersonTokensPropCommitsCommitProp
Daniel Mack3069.77%330.00%
Uwe Kleine-König920.93%440.00%
Benoît Thébaudeau24.65%110.00%
Vladimir Zapolskiy24.65%220.00%
Total43100.00%10100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Daniel Mack40385.02%320.00%
Vladimir Zapolskiy408.44%320.00%
Uwe Kleine-König163.38%533.33%
Shawn Guo132.74%320.00%
Benoît Thébaudeau20.42%16.67%
Total474100.00%15100.00%
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