diff --git a/arch/arm/mach-rockchip/rk3576/rk3576.c b/arch/arm/mach-rockchip/rk3576/rk3576.c
index 1def4e87971..c24b306e8ae 100644
--- a/arch/arm/mach-rockchip/rk3576/rk3576.c
+++ b/arch/arm/mach-rockchip/rk3576/rk3576.c
@@ -76,6 +76,14 @@ static struct mm_region rk3576_mem_map[] = {
 		.size = 0x400000000UL,
 		.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
 			 PTE_BLOCK_INNER_SHARE
+	}, {
+		/* MSCH_DDR_PORT, shared 64KB for SCMI */
+		.virt = 0x40100000UL,
+		.phys = 0x40100000UL,
+		.size = 0x00010000UL,
+		.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL_NC) |
+			 PTE_BLOCK_NON_SHARE |
+			 PTE_BLOCK_PXN | PTE_BLOCK_UXN
 	}, {
 		/* PCIe 0+1 */
 		.virt = 0x900000000UL,