int board_mmc_init(bd_t *bis)
{
int ret;
if (get_boot_mode() == BOOT_MODE_SD) {
ret = init_mmc();
ret |= init_dwmmc();
} else {
ret = init_dwmmc();
ret |= init_mmc();
}
if (ret)
debug("mmc init failed\n");
return ret;
}
void mmcsd_detect(void *param)
{
struct rt_mmcsd_host *host;
rt_uint32_t ocr;
rt_int32_t err;
while (1)
{
if (rt_mb_recv(&mmcsd_detect_mb, (rt_uint32_t*)&host, RT_WAITING_FOREVER) == RT_EOK)
{
if (host->card == RT_NULL)
{
mmcsd_host_lock(host);
mmcsd_power_up(host);
mmcsd_go_idle(host);
mmcsd_send_if_cond(host, host->valid_ocr);
err = sdio_io_send_op_cond(host, 0, &ocr);
if (!err)
{
if (init_sdio(host, ocr))
mmcsd_power_off(host);
mmcsd_host_unlock(host);
continue;
}
/*
* detect SD card
*/
err = mmcsd_send_app_op_cond(host, 0, &ocr);
if (!err)
{
if (init_sd(host, ocr))
mmcsd_power_off(host);
mmcsd_host_unlock(host);
continue;
}
/*
* detect mmc card
*/
err = mmc_send_op_cond(host, 0, &ocr);
if (!err)
{
if (init_mmc(host, ocr))
mmcsd_power_off(host);
mmcsd_host_unlock(host);
continue;
}
mmcsd_host_unlock(host);
}
else
{
/* card removed */
mmcsd_host_lock(host);
if (host->card->sdio_function_num != 0)
{
rt_kprintf("unsupport sdio card plug out!\n");
}
else
{
rt_mmcsd_blk_remove(host->card);
rt_free(host->card);
host->card = RT_NULL;
}
mmcsd_host_unlock(host);
}
}
}
}
