diff options
| author | Manish Narani <manish.narani@xilinx.com> | 2021-06-15 13:43:53 +0300 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2021-08-24 11:15:28 +0300 |
| commit | 256e4e4e836ce2452f6874a1612dc3e29f512143 (patch) | |
| tree | 7f7ea3f22c34b482c3e8da1f95f8a5f61db85f04 | |
| parent | 25a916645e02123ca4d0ee8a053c198033d8e61c (diff) | |
| download | linux-256e4e4e836ce2452f6874a1612dc3e29f512143.tar.xz | |
mmc: sdhci-of-arasan: Skip Auto tuning for DDR50 mode in ZynqMP platform
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>
| -rw-r--r-- | drivers/mmc/host/sdhci-of-arasan.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/mmc/host/sdhci-of-arasan.c b/drivers/mmc/host/sdhci-of-arasan.c index e61dbe0cf9fe..0f6ef4f45825 100644 --- a/drivers/mmc/host/sdhci-of-arasan.c +++ b/drivers/mmc/host/sdhci-of-arasan.c @@ -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); |