diff --git a/board/raspberrypi/rpi/rpi.c b/board/raspberrypi/rpi/rpi.c
index fa57d50c95edfb6ab8bcbf5b4bda41208e05d2b9..9e0abdda3190c647161265e392f85ec08be807ec 100644
--- a/board/raspberrypi/rpi/rpi.c
+++ b/board/raspberrypi/rpi/rpi.c
@@ -312,6 +312,16 @@ int dram_init(void)
 	return 0;
 }
 
+#ifdef CONFIG_OF_BOARD
+#ifdef CONFIG_BCM2711
+int dram_init_banksize(void)
+{
+	return fdtdec_decode_ram_size(gd->fdt_blob, NULL, 0, NULL,
+				     (phys_size_t *)&gd->ram_size, gd->bd);
+}
+#endif
+#endif
+
 static void set_fdtfile(void)
 {
 	const char *fdtfile;
diff --git a/configs/rpi_4_defconfig b/configs/rpi_4_defconfig
index 2d63197d75dd0a121980fe7bed91d21c364a4b52..2954e17ac3bd2476f65f5d043a14df6162fe5e85 100644
--- a/configs/rpi_4_defconfig
+++ b/configs/rpi_4_defconfig
@@ -3,7 +3,7 @@ CONFIG_ARCH_BCM283X=y
 CONFIG_SYS_TEXT_BASE=0x00080000
 CONFIG_TARGET_RPI_4=y
 CONFIG_SYS_MALLOC_F_LEN=0x2000
-CONFIG_NR_DRAM_BANKS=1
+CONFIG_NR_DRAM_BANKS=2
 CONFIG_DISTRO_DEFAULTS=y
 CONFIG_OF_BOARD_SETUP=y
 # CONFIG_ARCH_FIXUP_FDT_MEMORY is not set