summary refs log tree commit diff
path: root/drivers/mmc
diff options
context:
space:
mode:
authorBhavya Kapoor <b-kapoor@ti.com>2023-03-17 14:57:11 +0530
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-04-26 14:28:40 +0200
commitd9caa028d7ade869e0522078e62423f27f58e5b0 (patch)
treeb46b0cd6ab49a7352cecd26a9eb96b7435854129 /drivers/mmc
parent3e6bd2653ff86ee31fdbb821abe05af4d309aedf (diff)
downloadlinux-d9caa028d7ade869e0522078e62423f27f58e5b0.tar.gz
mmc: sdhci_am654: Set HIGH_SPEED_ENA for SDR12 and SDR25
commit 2265098fd6a6272fde3fd1be5761f2f5895bd99a upstream.

Timing Information in Datasheet assumes that HIGH_SPEED_ENA=1 should be
set for SDR12 and SDR25 modes. But sdhci_am654 driver clears
HIGH_SPEED_ENA register. Thus, Modify sdhci_am654 to not clear
HIGH_SPEED_ENA (HOST_CONTROL[2]) bit for SDR12 and SDR25 speed modes.

Fixes: e374e87538f4 ("mmc: sdhci_am654: Clear HISPD_ENA in some lower speed modes")
Signed-off-by: Bhavya Kapoor <b-kapoor@ti.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20230317092711.660897-1-b-kapoor@ti.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/mmc')
-rw-r--r--drivers/mmc/host/sdhci_am654.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/drivers/mmc/host/sdhci_am654.c b/drivers/mmc/host/sdhci_am654.c
index 101581d83982..8e22b375247e 100644
--- a/drivers/mmc/host/sdhci_am654.c
+++ b/drivers/mmc/host/sdhci_am654.c
@@ -351,8 +351,6 @@ static void sdhci_am654_write_b(struct sdhci_host *host, u8 val, int reg)
 		 */
 		case MMC_TIMING_SD_HS:
 		case MMC_TIMING_MMC_HS:
-		case MMC_TIMING_UHS_SDR12:
-		case MMC_TIMING_UHS_SDR25:
 			val &= ~SDHCI_CTRL_HISPD;
 		}
 	}