diff --git a/board/sunxi/Kconfig b/board/sunxi/Kconfig
index ea0d658..654ec73 100644
--- a/board/sunxi/Kconfig
+++ b/board/sunxi/Kconfig
@@ -27,6 +27,17 @@
 config SPL_SERIAL_SUPPORT
 	default y
 
+config SUNXI_HIGH_SRAM
+	bool
+	default n
+	---help---
+	Older Allwinner SoCs have their mask boot ROM mapped just below 4GB,
+	with the first SRAM region being located at address 0.
+	Some newer SoCs map the boot ROM at address 0 instead and move the
+	SRAM to 64KB, just behind the mask ROM.
+	Chips using the latter setup are supposed to select this option to
+	adjust the addresses accordingly.
+
 # Note only one of these may be selected at a time! But hidden choices are
 # not supported by Kconfig
 config SUNXI_GEN_SUN4I
@@ -120,6 +131,7 @@
 config MACH_SUN9I
 	bool "sun9i (Allwinner A80)"
 	select CPU_V7
+	select SUNXI_HIGH_SRAM
 	select SUNXI_GEN_SUN6I
 	select SUPPORT_SPL
 
@@ -127,6 +139,7 @@
 	bool "sun50i (Allwinner A64)"
 	select ARM64
 	select SUNXI_GEN_SUN6I
+	select SUNXI_HIGH_SRAM
 	select SUPPORT_SPL
 
 endchoice