mirror of
https://github.com/edk2-porting/linux-next.git
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76 lines
1.9 KiB
C
76 lines
1.9 KiB
C
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/*
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* arch/arm/mach-pxa/colibri-pxa3xx.c
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*
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* Common functions for all Toradex PXA3xx modules
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*
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* Daniel Mack <daniel@caiaq.de>
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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 version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/platform_device.h>
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#include <linux/gpio.h>
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#include <asm/mach-types.h>
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#include <mach/hardware.h>
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#include <asm/sizes.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/irq.h>
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#include <mach/pxa3xx-regs.h>
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#include <mach/mfp-pxa300.h>
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#include <mach/colibri.h>
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#include <mach/mmc.h>
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#include "generic.h"
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#include "devices.h"
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#if defined(CONFIG_MMC_PXA) || defined(CONFIG_MMC_PXA_MODULE)
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static int mmc_detect_pin;
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static int colibri_pxa3xx_mci_init(struct device *dev,
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irq_handler_t colibri_mmc_detect_int,
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void *data)
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{
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int ret;
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ret = gpio_request(mmc_detect_pin, "mmc card detect");
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if (ret)
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return ret;
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gpio_direction_input(mmc_detect_pin);
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ret = request_irq(gpio_to_irq(mmc_detect_pin), colibri_mmc_detect_int,
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IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
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"MMC card detect", data);
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if (ret) {
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gpio_free(mmc_detect_pin);
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return ret;
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}
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return 0;
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}
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static void colibri_pxa3xx_mci_exit(struct device *dev, void *data)
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{
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free_irq(mmc_detect_pin, data);
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gpio_free(gpio_to_irq(mmc_detect_pin));
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}
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static struct pxamci_platform_data colibri_pxa3xx_mci_platform_data = {
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.detect_delay = 20,
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.ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
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.init = colibri_pxa3xx_mci_init,
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.exit = colibri_pxa3xx_mci_exit,
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};
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void __init colibri_pxa3xx_init_mmc(mfp_cfg_t *pins, int len, int detect_pin)
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{
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pxa3xx_mfp_config(pins, len);
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mmc_detect_pin = detect_pin;
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pxa_set_mci_info(&colibri_pxa3xx_mci_platform_data);
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}
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#endif /* CONFIG_MMC_PXA || CONFIG_MMC_PXA_MODULE */
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