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mmc: renesas-sdhi: Send stop when MMC tuning command fails

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When tuning command (CMD21) fails with command error, call
mmc_send_stop_transmission() to send stop command (CMD12).

Reviewed-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
Reviewed-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Signed-off-by: Hai Pham <hai.pham.ud@renesas.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
[Marek: Add dev_dbg() message in case tuning abort fails
        Move tuning opcode check from mmc_abort_tuning()]
Reviewed-by: Peng Fan <peng.fan@nxp.com>
This commit is contained in:
Hai Pham 2023-06-20 00:38:25 +02:00 committed by Jaehoon Chung
parent 0ac2cca3a4
commit 99ab3d8dc4
1 changed files with 11 additions and 0 deletions
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11
drivers/mmc/renesas-sdhi.c
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@ -611,6 +611,17 @@ int renesas_sdhi_execute_tuning(struct udevice *dev, uint opcode)
priv->smpcmp |= BIT(i); priv->smpcmp |= BIT(i);
mdelay(1); 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, false);
if (ret < 0)
dev_dbg(dev, "Tuning abort fail (%d)\n", ret);
}
} }
ret = renesas_sdhi_select_tuning(priv, taps); ret = renesas_sdhi_select_tuning(priv, taps);