The current code uses the state of tuning block received by SCC to determine whether or not to send transmission stop command. This is not correct. Use the state of tuning block transfer to determine whether or not to send transmission stop command instead, because the transmission stop command has to be sent in case the tuning block transfer failed.
This requires two changes, separate variable to store and check the state of tuning block received by SCC, and another separate variable to store and check return value from transmission stop command.
Signed-off-by: Marek Vasut marek.vasut+renesas@mailbox.org --- Cc: Hai Pham hai.pham.ud@renesas.com Cc: Jaehoon Chung jh80.chung@samsung.com Cc: Nobuhiro Iwamatsu iwamatsu@nigauri.org Cc: Paul Barker paul.barker.ct@bp.renesas.com Cc: Peng Fan peng.fan@nxp.com Cc: Sean Anderson seanga2@gmail.com Cc: Tom Rini trini@konsulko.com Cc: Yoshihiro Shimoda yoshihiro.shimoda.uh@renesas.com --- drivers/mmc/renesas-sdhi.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-)
diff --git a/drivers/mmc/renesas-sdhi.c b/drivers/mmc/renesas-sdhi.c index 316b75b35fe..c4d0733b621 100644 --- a/drivers/mmc/renesas-sdhi.c +++ b/drivers/mmc/renesas-sdhi.c @@ -568,8 +568,8 @@ int renesas_sdhi_execute_tuning(struct udevice *dev, uint opcode) struct mmc *mmc = upriv->mmc; unsigned int tap_num; unsigned int taps = 0; - int i, ret = 0; - u32 caps; + int i, ret = 0, sret; + u32 caps, reg;
/* Only supported on Renesas RCar */ if (!(priv->caps & TMIO_SD_CAP_RCAR_UHS)) @@ -612,8 +612,8 @@ int renesas_sdhi_execute_tuning(struct udevice *dev, uint opcode) if (ret == 0) taps |= BIT(i);
- ret = renesas_sdhi_compare_scc_data(priv); - if (ret == 0) + reg = renesas_sdhi_compare_scc_data(priv); + if (reg == 0) priv->smpcmp |= BIT(i);
mdelay(1); @@ -624,9 +624,9 @@ int renesas_sdhi_execute_tuning(struct udevice *dev, uint opcode) * 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); + sret = mmc_send_stop_transmission(mmc, false); + if (sret < 0) + dev_dbg(dev, "Tuning abort fail (%d)\n", sret); } }