diff --git a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c
index 585943c81e1f..08866550740f 100644
--- a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c
+++ b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c
@@ -31,14 +31,20 @@
 #define RDMA_REG_UPDATE_INT				BIT(0)
 #define DISP_REG_RDMA_GLOBAL_CON		0x0010
 #define RDMA_ENGINE_EN					BIT(0)
+#define RDMA_MODE_MEMORY				BIT(1)
 #define DISP_REG_RDMA_SIZE_CON_0		0x0014
 #define DISP_REG_RDMA_SIZE_CON_1		0x0018
 #define DISP_REG_RDMA_TARGET_LINE		0x001c
+#define DISP_RDMA_MEM_SRC_PITCH			0x002c
+#define DISP_RDMA_MEM_GMC_SETTING_0		0x0030
 #define DISP_REG_RDMA_FIFO_CON			0x0040
 #define RDMA_FIFO_UNDERFLOW_EN				BIT(31)
 #define RDMA_FIFO_PSEUDO_SIZE(bytes)			(((bytes) / 16) << 16)
 #define RDMA_OUTPUT_VALID_FIFO_THRESHOLD(bytes)		((bytes) / 16)
 #define RDMA_FIFO_SIZE(rdma)			((rdma)->data->fifo_size)
+#define DISP_RDMA_MEM_START_ADDR		0x0f00
+
+#define RDMA_MEM_GMC				0x40402020
 
 struct mtk_disp_rdma_data {
 	unsigned int fifo_size;
@@ -138,12 +144,27 @@ static void mtk_rdma_config(struct mtk_ddp_comp *comp, unsigned int width,
 	writel(reg, comp->regs + DISP_REG_RDMA_FIFO_CON);
 }
 
+static void mtk_rdma_layer_config(struct mtk_ddp_comp *comp, unsigned int idx,
+				  struct mtk_plane_state *state)
+{
+	struct mtk_plane_pending_state *pending = &state->pending;
+	unsigned int addr = pending->addr;
+	unsigned int pitch = pending->pitch & 0xffff;
+
+	writel_relaxed(addr, comp->regs + DISP_RDMA_MEM_START_ADDR);
+	writel_relaxed(pitch, comp->regs + DISP_RDMA_MEM_SRC_PITCH);
+	writel(RDMA_MEM_GMC, comp->regs + DISP_RDMA_MEM_GMC_SETTING_0);
+	rdma_update_bits(comp, DISP_REG_RDMA_GLOBAL_CON,
+			 RDMA_MODE_MEMORY, RDMA_MODE_MEMORY);
+}
+
 static const struct mtk_ddp_comp_funcs mtk_disp_rdma_funcs = {
 	.config = mtk_rdma_config,
 	.start = mtk_rdma_start,
 	.stop = mtk_rdma_stop,
 	.enable_vblank = mtk_rdma_enable_vblank,
 	.disable_vblank = mtk_rdma_disable_vblank,
+	.layer_config = mtk_rdma_layer_config,
 };
 
 static int mtk_disp_rdma_bind(struct device *dev, struct device *master,