Merge "mmc: sdhci-msm: Ignore AHB bus transfer stop request"
diff --git a/drivers/mmc/host/sdhci-msm.c b/drivers/mmc/host/sdhci-msm.c
index 01c75e5..853f37b 100644
--- a/drivers/mmc/host/sdhci-msm.c
+++ b/drivers/mmc/host/sdhci-msm.c
@@ -89,6 +89,9 @@
#define CORE_TESTBUS_ENA (1 << 3)
#define CORE_TESTBUS_SEL2 (1 << 4)
+#define CORE_MCI_VERSION 0x050
+#define CORE_VERSION_310 0x10000011
+
/*
* Waiting until end of potential AHB access for data:
* 16 AHB cycles (160ns for 100MHz and 320ns for 50MHz) +
@@ -2166,6 +2169,12 @@
struct sdhci_msm_host *msm_host = pltfm_host->priv;
u32 value;
int ret;
+ u32 version;
+
+ version = readl_relaxed(msm_host->core_mem + CORE_MCI_VERSION);
+ /* Core version 3.1.0 doesn't need this workaround */
+ if (version == CORE_VERSION_310)
+ return;
value = readl_relaxed(msm_host->core_mem + CORE_MCI_DATA_CTRL);
value &= ~(u32)CORE_MCI_DPSM_ENABLE;