diff mbox series

[3/7] mmc: sdhci-of-arasan: Skip Auto tuning for DDR50 mode in ZynqMP platform

Message ID 1623753837-21035-4-git-send-email-manish.narani@xilinx.com (mailing list archive)
State New, archived
Headers show
Series sdhci-of-arasan driver updates for ZynqMP platform | expand

Commit Message

Manish Narani June 15, 2021, 10:43 a.m. UTC 
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>
---
 drivers/mmc/host/sdhci-of-arasan.c | 4 ++++
 1 file changed, 4 insertions(+)
diff mbox series

Patch

diff --git a/drivers/mmc/host/sdhci-of-arasan.c b/drivers/mmc/host/sdhci-of-arasan.c
index b13e719..1980d0b 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);