mmc.c

	mmc_set_bus_width(mmc, 1);
	mmc_set_clock(mmc, 1);

	/* Reset the Card */
	err = mmc_go_idle(mmc);

	if (err)
		return err;

	/* Test for SD version 2 */
	err = mmc_send_if_cond(mmc);

	/* Now try to get the SD card's operating condition */
	err = sd_send_op_cond(mmc);

	/* If the command timed out, we check for an MMC card */
	if (err == TIMEOUT) {
		err = mmc_send_op_cond(mmc);

		if (err) {
			printf("Card did not respond to voltage select!\n");
			return UNUSABLE_ERR;
		}
	}

	return mmc_startup(mmc);
}

/*
 * CPU and board-specific MMC initializations.  Aliased function
 * signals caller to move on
 */
static int __def_mmc_init(bd_t *bis)
{
	return -1;
}

int cpu_mmc_init(bd_t *bis) __attribute__((weak, alias("__def_mmc_init")));
int board_mmc_init(bd_t *bis) __attribute__((weak, alias("__def_mmc_init")));

void print_mmc_devices(char separator)
{
	struct mmc *m;
	struct list_head *entry;

	list_for_each(entry, &mmc_devices) {
		m = list_entry(entry, struct mmc, link);

		printf("%s: %d", m->name, m->block_dev.dev);

		if (entry->next != &mmc_devices)
			printf("%c ", separator);
	}

	printf("\n");
}

int mmc_initialize(bd_t *bis)
{
	INIT_LIST_HEAD (&mmc_devices);
	cur_dev_num = 0;

	if (board_mmc_init(bis) < 0)
		cpu_mmc_init(bis);

	print_mmc_devices(',');

	return 0;
}