When the MMC framework was added in u-boot, the mmc_go_idle was
added before mmc_send_op_cond_iter in function mmc_send_op_cond
annotating that some cards seemed to need this. Actually, we still
need to do this in function mmc_complete_op_cond for those cards.
This has been verified on Micron MTFC4GACAECN eMMC chip.
Signed-off-by: Yangbo Lu <yangbo...@nxp.com>
---
drivers/mmc/mmc.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index f8e5f7a..d4e96bc 100644
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -422,6 +422,9 @@ static int mmc_complete_op_cond(struct mmc *mmc)
mmc->op_cond_pending = 0;
if (!(mmc->ocr & OCR_BUSY)) {
+ /* Some cards seem to need this */
+ mmc_go_idle(mmc);
+
start = get_timer(0);
while (1) {
err = mmc_send_op_cond_iter(mmc, 1);
--
2.1.0.27.g96db324
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