From 866bb98468f5a442559825c97e3f1ffd5cf2e8de Mon Sep 17 00:00:00 2001
From: Kishon Vijay Abraham I <kishon@ti.com>
Date: Thu, 21 Sep 2017 16:51:35 +0200
Subject: [PATCH] mmc: omap_hsmmc: Enable Auto command (CMD12) enable
Instead of sending STOP TRANSMISSION command from MMC core, enable
the auto command feature so that the Host Controller issues CMD12
automatically when last block transfer is completed.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
---
drivers/mmc/omap_hsmmc.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/mmc/omap_hsmmc.c b/drivers/mmc/omap_hsmmc.c
index 462a89198b..224c06aea8 100644
--- a/drivers/mmc/omap_hsmmc.c
+++ b/drivers/mmc/omap_hsmmc.c
@@ -494,6 +494,10 @@ static int omap_hsmmc_send_cmd(struct udevice *dev, struct mmc_cmd *cmd,
ulong start;
mmc_base = priv->base_addr;
+
+ if (cmd->cmdidx == MMC_CMD_STOP_TRANSMISSION)
+ return 0;
+
start = get_timer(0);
while ((readl(&mmc_base->pstate) & (DATI_MASK | CMDI_MASK)) != 0) {
if (get_timer(0) - start > MAX_RETRY_MS) {
@@ -550,7 +554,7 @@ static int omap_hsmmc_send_cmd(struct udevice *dev, struct mmc_cmd *cmd,
if (data) {
if ((cmd->cmdidx == MMC_CMD_READ_MULTIPLE_BLOCK) ||
(cmd->cmdidx == MMC_CMD_WRITE_MULTIPLE_BLOCK)) {
- flags |= (MSBS_MULTIBLK | BCE_ENABLE);
+ flags |= (MSBS_MULTIBLK | BCE_ENABLE | ACEN_ENABLE);
data->blocksize = 512;
writel(data->blocksize | (data->blocks << 16),
&mmc_base->blk);
--
2.39.5