diff --git a/configs/rock2_defconfig b/configs/rock2_defconfig
index fc9ff78943b1dd9220055f1ba2faea4882ea54cb..036125689a0f38ea7a2e67a3d11e812f6ff89c88 100644
--- a/configs/rock2_defconfig
+++ b/configs/rock2_defconfig
@@ -7,6 +7,8 @@ CONFIG_SPL_STACK_R_ADDR=0x80000
 CONFIG_DEFAULT_DEVICE_TREE="rk3288-rock2-square"
 CONFIG_SPL_STACK_R=y
 CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN=0x2000
+# CONFIG_SPL_MMC_SUPPORT is not set
+CONFIG_ROCKCHIP_SPL_BACK_TO_BROM=y
 CONFIG_HUSH_PARSER=y
 CONFIG_CMD_BOOTZ=y
 # CONFIG_CMD_IMLS is not set
diff --git a/include/configs/rock2.h b/include/configs/rock2.h
index ee924c3816d998a8e76bdfdb7ead4c3e1725cf0f..99d69155d2156fff688d1fd21af7ac1addcfad98 100644
--- a/include/configs/rock2.h
+++ b/include/configs/rock2.h
@@ -16,11 +16,20 @@
 
 #define CONFIG_ENV_IS_IN_MMC
 #define CONFIG_SYS_MMC_ENV_DEV 0
+
+#ifdef CONFIG_ROCKCHIP_SPL_BACK_TO_BROM
+/* SPL @ 32k for 34k
+ * u-boot directly after @ 68k for 400k or so
+ * ENV @ 992k
+ */
+#define CONFIG_ENV_OFFSET ((1024-32) * 1024)
+#else
 /* SPL @ 32k for ~36k
  * ENV @ 96k
  * u-boot @ 128K
  */
 #define CONFIG_ENV_OFFSET (96 * 1024)
+#endif
 
 #define CONFIG_SYS_WHITE_ON_BLACK
 #define CONFIG_CONSOLE_SCROLL_LINES		10