src/bsp/lk/target/auto2712-emmc/target.c

/*
 * Copyright (c) 2018 MediaTek Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files
 * (the "Software"), to deal in the Software without restriction,
 * including without limitation the rights to use, copy, modify, merge,
 * publish, distribute, sublicense, and/or sell copies of the Software,
 * and to permit persons to whom the Software is furnished to do so,
 * subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/

#include <errno.h>
#include <lib/bio.h>
#include <platform/mmc_core.h>
#include <platform/mtk_bio_ioctl.h>

extern void platform_memory_init(void);

struct mmc_card *card;
bool retry_opcond;

void target_early_init(void)
{
#if LK_AS_BL33
    card = emmc_init_stage1(&retry_opcond, true);
#else
    card = emmc_init_stage1(&retry_opcond, false);
#endif

    /* init memory */
    platform_memory_init();
}

void target_init(void)
{
    if (card) {
#if LK_AS_BL33
        emmc_init_stage2(card, retry_opcond, true);
#else
        emmc_init_stage2(card, retry_opcond, false);
#endif
    }
    extern void do_check_mrdump(void) __attribute__((weak));
    if (do_check_mrdump)
        do_check_mrdump();
}

int target_ab_set_active_bootdev(int slot)
{
    bdev_t *dev;
    int ret;

    /* check slot validity */
    if ((slot < 0) || (slot > 1))
        return -EINVAL;

    dev = bio_open("mmc0");
    if (!dev)
        return -ENXIO;

    slot += 1; /* emmc driver expects slot parameter is 1 or 2 */
    ret = bio_ioctl(dev, BIO_IOCTL_MMC_SET_BOOT, &slot);
    if (ret < 0)
        ret = -EIO;

    bio_close(dev);

    return ret;
}