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mmc: sdhci-of-arasan: Skip Auto tuning for DDR50 mode in ZynqMP platform

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ZynqMP platform does not perform auto tuning in DDR50 mode. Skip the
same while the card is operating in DDR50 mode.

Signed-off-by: Manish Narani <manish.narani@xilinx.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/1623753837-21035-4-git-send-email-manish.narani@xilinx.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Manish Narani 2021-06-15 16:13:53 +05:30 committed by Ulf Hansson
parent 25a916645e
commit 256e4e4e83
1 changed files with 4 additions and 0 deletions
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4
drivers/mmc/host/sdhci-of-arasan.c
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@ -894,6 +894,10 @@ static int arasan_zynqmp_execute_tuning(struct mmc_host *mmc, u32 opcode)
NODE_SD_1;
int err;
/* ZynqMP SD controller does not perform auto tuning in DDR50 mode */
if (mmc->ios.timing == MMC_TIMING_UHS_DDR50)
return 0;
arasan_zynqmp_dll_reset(host, device_id);
err = sdhci_execute_tuning(mmc, opcode);