diff --git a/board/vamrs/rock960_rk3399/Makefile b/board/vamrs/rock960_rk3399/Makefile
deleted file mode 100644
index 6c3e475b3a8..00000000000
--- a/board/vamrs/rock960_rk3399/Makefile
+++ /dev/null
@@ -1,6 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0+
-#
-# Copyright (C) 2018 Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
-#
-
-obj-y	+= rock960-rk3399.o
diff --git a/board/vamrs/rock960_rk3399/rock960-rk3399.c b/board/vamrs/rock960_rk3399/rock960-rk3399.c
deleted file mode 100644
index 876be8ed9e1..00000000000
--- a/board/vamrs/rock960_rk3399/rock960-rk3399.c
+++ /dev/null
@@ -1,27 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * Copyright (C) 2018 Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
- */
-
-#include <common.h>
-#include <syscon.h>
-#include <asm/arch-rockchip/clock.h>
-#include <asm/arch-rockchip/grf_rk3399.h>
-#include <asm/arch-rockchip/hardware.h>
-#include <linux/bitops.h>
-
-#ifdef CONFIG_MISC_INIT_R
-int misc_init_r(void)
-{
-	struct rk3399_grf_regs *grf =
-	    syscon_get_first_range(ROCKCHIP_SYSCON_GRF);
-
-	/**
-	 * Some SSD's to work on rock960 would require explicit
-	 * domain voltage change, so BT565 is in 1.8v domain
-	 */
-	rk_setreg(&grf->io_vsel, BIT(0));
-
-	return 0;
-}
-#endif
diff --git a/configs/ficus-rk3399_defconfig b/configs/ficus-rk3399_defconfig
index 90b07d847cc..4859042d6b5 100644
--- a/configs/ficus-rk3399_defconfig
+++ b/configs/ficus-rk3399_defconfig
@@ -42,6 +42,7 @@ CONFIG_SYS_MMC_ENV_DEV=1
 CONFIG_NET_RANDOM_ETHADDR=y
 CONFIG_ROCKCHIP_GPIO=y
 CONFIG_SYS_I2C_ROCKCHIP=y
+CONFIG_ROCKCHIP_IODOMAIN=y
 CONFIG_MMC_DW=y
 CONFIG_MMC_DW_ROCKCHIP=y
 CONFIG_MMC_SDHCI=y
diff --git a/configs/rock960-rk3399_defconfig b/configs/rock960-rk3399_defconfig
index 5c0b95f10bd..13575c58005 100644
--- a/configs/rock960-rk3399_defconfig
+++ b/configs/rock960-rk3399_defconfig
@@ -39,6 +39,7 @@ CONFIG_SYS_RELOC_GD_ENV_ADDR=y
 CONFIG_SYS_MMC_ENV_DEV=1
 CONFIG_ROCKCHIP_GPIO=y
 CONFIG_SYS_I2C_ROCKCHIP=y
+CONFIG_ROCKCHIP_IODOMAIN=y
 CONFIG_MMC_DW=y
 CONFIG_MMC_DW_ROCKCHIP=y
 CONFIG_MMC_SDHCI=y