linux sd卡驱动移植

git clone https://github.com/torvalds/linux.git
cd linux/drivers/mmc

# Makefile
obj-$(CONFIG_MMC_NEW_PLATFORM) += sd_new_platform.o

#include <linux/mmc/core.h>
#include <linux/mmc/card.h>
#include <linux/mmc/host.h>

static int sd_new_platform_probe(struct platform_device *pdev) {
    // 初始化SD卡控制器
    return 0;
}

static int sd_new_platform_remove(struct platform_device *pdev) {
    // 清理资源
    return 0;
}

static const struct of_device_id sd_new_platform_of_match[] = {
    { .compatible = "new_platform,sd-card-controller", },
    { /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, sd_new_platform_of_match);

static struct platform_driver sd_new_platform_driver = {
    .probe = sd_new_platform_probe,
    .remove = sd_new_platform_remove,
    .driver = {
        .name = "sd-new-platform",
        .of_match_table = sd_new_platform_of_match,
    },
};

module_platform_driver(sd_new_platform_driver);

MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("SD Card Driver for New Platform");
MODULE_AUTHOR("Your Name");

make ARCH=arm CROSS_COMPILE=arm-linux-gnueabi-