diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
index ebca72dec632..56bf0c97237d 100644
--- a/drivers/iommu/arm-smmu.c
+++ b/drivers/iommu/arm-smmu.c
@@ -1715,6 +1715,7 @@ static void arm_smmu_write_context_bank(struct arm_smmu_device *smmu, int idx,
 
 		reg |= FIELD_PREP(SCTLR_WACFG, SCTLR_WACFG_WA) |
 		       FIELD_PREP(SCTLR_RACFG, SCTLR_RACFG_RA) |
+		       FIELD_PREP(SCTLR_SHCFG, SCTLR_SHCFG_OSH) |
 		       SCTLR_MTCFG |
 		       FIELD_PREP(SCTLR_MEM_ATTR, SCTLR_MEM_ATTR_OISH_WB_CACHE);
 	} else {
diff --git a/drivers/iommu/arm-smmu.h b/drivers/iommu/arm-smmu.h
index 4f8127b2ee45..14a550ed6aa3 100644
--- a/drivers/iommu/arm-smmu.h
+++ b/drivers/iommu/arm-smmu.h
@@ -153,6 +153,7 @@ enum arm_smmu_cbar_type {
 #define SCTLR_RACFG			GENMASK(25, 24)
 #define SCTLR_RACFG_RA			0x2
 #define SCTLR_SHCFG			GENMASK(23, 22)
+#define SCTLR_SHCFG_OSH			0x1
 #define SCTLR_SHCFG_NSH			0x3
 #define SCTLR_MTCFG			BIT(20)
 #define SCTLR_MEM_ATTR			GENMASK(19, 16)