From: Hai Pham <hai.pham...@renesas.com>
When tuning command (CMD21) fails with command error, call
mmc_send_stop_transmission() to send stop command (CMD12).
Reviewed-by: Takeshi Kihara <takeshi.kihara...@renesas.com>
Reviewed-by: Marek Vasut <marek.vasut+rene...@mailbox.org>
Signed-off-by: Hai Pham <hai.pham...@renesas.com>
Signed-off-by: Marek Vasut <marek.vasut+rene...@mailbox.org>
[Marek: Add dev_dbg() message in case tuning abort fails
Move tuning opcode check from mmc_abort_tuning()]
---
Cc: "Ying-Chun Liu (PaulLiu)" <paul....@linaro.org>
Cc: Hai Pham <hai.pham...@renesas.com>
Cc: Jaehoon Chung <jh80.ch...@samsung.com>
Cc: Loic Poulain <loic.poul...@linaro.org>
Cc: Peng Fan <peng....@nxp.com>
Cc: Simon Glass <s...@chromium.org>
Cc: Takeshi Kihara <takeshi.kihara...@renesas.com>
---
drivers/mmc/renesas-sdhi.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/drivers/mmc/renesas-sdhi.c b/drivers/mmc/renesas-sdhi.c
index 280d96dbc2d..74d98795838 100644
--- a/drivers/mmc/renesas-sdhi.c
+++ b/drivers/mmc/renesas-sdhi.c
@@ -611,6 +611,17 @@ int renesas_sdhi_execute_tuning(struct udevice *dev, uint
opcode)
priv->smpcmp |= BIT(i);
mdelay(1);
+
+ /*
+ * eMMC specification specifies that CMD12 can be used to stop
a tuning
+ * command, but SD specification does not, so do nothing unless
it is
+ * eMMC.
+ */
+ if (ret && (opcode == MMC_CMD_SEND_TUNING_BLOCK_HS200)) {
+ ret = mmc_send_stop_transmission(mmc);
+ if (ret < 0)
+ dev_dbg(dev, "Tuning abort fail (%d)\n", ret);
+ }
}
ret = renesas_sdhi_select_tuning(priv, taps);
--
2.39.2
