riscv: mbv: Switch to OF_SEPARATE with fixed address

Hardcode DTB address to specific address.

Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/a5ad3c8d21be311254dd950e4e322d13cacdc176.1707911544.git.michal.simek@amd.com
diff --git a/board/xilinx/Kconfig b/board/xilinx/Kconfig
index 843198f..5c4ad8f 100644
--- a/board/xilinx/Kconfig
+++ b/board/xilinx/Kconfig
@@ -45,6 +45,7 @@
 	default 0x1000 if ARCH_VERSAL || ARCH_VERSAL_NET
 	default 0x8000 if MICROBLAZE
 	default 0x100000 if ARCH_ZYNQ || ARCH_ZYNQMP
+	default 0x23000000 if TARGET_XILINX_MBV
 	depends on OF_BOARD || OF_SEPARATE
 	help
 	  Offset in the memory where the board configuration DTB is placed.
diff --git a/configs/xilinx_mbv32_defconfig b/configs/xilinx_mbv32_defconfig
index 89fb3fb..a08a125 100644
--- a/configs/xilinx_mbv32_defconfig
+++ b/configs/xilinx_mbv32_defconfig
@@ -20,7 +20,6 @@
 # CONFIG_BOARD_LATE_INIT is not set
 # CONFIG_CMD_MII is not set
 CONFIG_CMD_TIMER=y
-CONFIG_OF_EMBED=y
 CONFIG_SYS_RELOC_GD_ENV_ADDR=y
 CONFIG_DM_MTD=y
 CONFIG_DEBUG_UART_ANNOUNCE=y
diff --git a/configs/xilinx_mbv32_smode_defconfig b/configs/xilinx_mbv32_smode_defconfig
index 844afde..fd3ef93 100644
--- a/configs/xilinx_mbv32_smode_defconfig
+++ b/configs/xilinx_mbv32_smode_defconfig
@@ -20,7 +20,6 @@
 # CONFIG_BOARD_LATE_INIT is not set
 # CONFIG_CMD_MII is not set
 CONFIG_CMD_TIMER=y
-CONFIG_OF_EMBED=y
 CONFIG_SYS_RELOC_GD_ENV_ADDR=y
 CONFIG_DM_MTD=y
 CONFIG_DEBUG_UART_UARTLITE=y