diff --git a/drivers/ram/k3-ddrss/k3-ddrss.c b/drivers/ram/k3-ddrss/k3-ddrss.c
index 2467f12..6217f98 100644
--- a/drivers/ram/k3-ddrss/k3-ddrss.c
+++ b/drivers/ram/k3-ddrss/k3-ddrss.c
@@ -30,7 +30,7 @@
 #define CTRLMMR_DDR4_FSP_CLKCHNG_REQ_OFFS	0x80
 #define CTRLMMR_DDR4_FSP_CLKCHNG_ACK_OFFS	0xc0
 
-#define DDRSS_V2A_R1_MAT_REG			0x0020
+#define DDRSS_V2A_CTL_REG			0x0020
 #define DDRSS_ECC_CTRL_REG			0x0120
 
 #define DDRSS_ECC_CTRL_REG_ECC_EN		BIT(0)
@@ -620,8 +620,8 @@
 		return ret;
 
 #ifdef CONFIG_K3_AM64_DDRSS
-
-	writel(0x000001EF, ddrss->ddrss_ss_cfg + DDRSS_V2A_R1_MAT_REG);
+	/* AM64x supports only up to 2 GB SDRAM */
+	writel(0x000001EF, ddrss->ddrss_ss_cfg + DDRSS_V2A_CTL_REG);
 	writel(0x0, ddrss->ddrss_ss_cfg + DDRSS_ECC_CTRL_REG);
 #endif