From 7d6394297dca05165f52232e74c31da85c1c816c Mon Sep 17 00:00:00 2001 From: Joakim Bech Date: Tue, 18 Dec 2018 10:09:02 +0100 Subject: [PATCH] mmc: increase delay when initializing mmc Running TF-A 2.0 and later seems to cause a regression on HiKey 620. NOTICE: BL2: v2.0(release):v2.0 NOTICE: BL2: Built : 17:41:23, Dec 17 2018 NOTICE: acpu_dvfs_set_freq: set acpu freq success!ERROR: CMD1 failed after 100 retries ERROR: BL2: Failed to load image (-5) The reason seems to be that during emmc enumeration when BL2 sends the command OCR_SECTOR_MODE | OCR_VDD_MIN_2V7 | OCR_VDD_MIN_1V7 it for some reason takes some more time to get a reply. So a delay with mdelay(1), seems to not be enough any longer and therefore we increase it to mdelay(10) instead which makes the device boot as expected again. Signed-off-by: Joakim Bech --- drivers/mmc/mmc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c index 4160003c8..6d5ba9d73 100644 --- a/drivers/mmc/mmc.c +++ b/drivers/mmc/mmc.c @@ -404,7 +404,7 @@ static int mmc_send_op_cond(void) return 0; } - mdelay(1); + mdelay(10); } ERROR("CMD1 failed after %d retries\n", SEND_OP_COND_MAX_RETRIES);