diff --git a/README b/README
index 09f8691..6f5866b 100644
--- a/README
+++ b/README
@@ -54,6 +54,21 @@ Status of supported boards:
 
 Notes:
 -----
+  Custom rkbin version:
+	If you wish to use a different version of DDR binary provided by
+	rockchip-rkbin recipe than the one in this layer, you can create a
+	.bbappend in your own layer, and accordingly set SRCREV (possibly
+	LIC_FILES_CHKSUM too) and the version for path matching stored in
+	DDRBIN_VERS variable. Do so in your .bbappend with:
+
+		DDRBIN_VERS:my-machine = "v2.07"
+
+	If somehow the filename differs from the one provided in this layer, you
+	can override it from your bbappend with the DDRBIN_FILE variable:
+
+		DDRBIN_VERS:my-machine = "v2.07"
+		DDRBIN_FILE:my-machine = "rk3308_ddr_451MHz_uart4_m0_${DDRBIN_VERS}.bin"
+
   rk3308 rkbin:
 	The latest ddr initializer for the rk3308 platform does not output
 	diagnostic messages to uart0. This causes a bunch of gibberish to
diff --git a/recipes-bsp/rkbin/rockchip-rkbin_git.bb b/recipes-bsp/rkbin/rockchip-rkbin_git.bb
index 6e87507..f13c134 100644
--- a/recipes-bsp/rkbin/rockchip-rkbin_git.bb
+++ b/recipes-bsp/rkbin/rockchip-rkbin_git.bb
@@ -30,15 +30,21 @@ do_install() {
 PACKAGES = "${PN}"
 ALLOW_EMPTY:${PN} = "1"
 
+DDRBIN_VERS:rk3308 ?= "v2.07"
+DDRBIN_FILE:rk3308 ?= "rk3308_ddr_589MHz_uart4_m0_${DDRBIN_VERS}.bin"
+
 do_deploy:rk3308() {
 	# Prebuilt TF-A
 	install -m 644 ${S}/bin/rk33/rk3308_bl31_v*.elf ${DEPLOYDIR}/bl31-rk3308.elf
 	# Prebuilt OPTEE-OS
 	install -m 644 ${S}/bin/rk33/rk3308_bl32_v*.bin ${DEPLOYDIR}/tee-rk3308.bin
 	# Prebuilt U-Boot TPL (DDR init)
-	install -m 644 ${S}/bin/rk33/rk3308_ddr_589MHz_uart?_m0_v*.bin ${DEPLOYDIR}/ddr-rk3308.bin
+	install -m 644 ${S}/bin/rk33/${DDRBIN_FILE} ${DEPLOYDIR}/ddr-rk3308.bin
 }
 
+DDRBIN_VERS:rk3566 ?= "v1.21"
+DDRBIN_FILE:rk3566 ?= "rk3566_ddr_1056MHz_${DDRBIN_VERS}.bin"
+
 # NOTE: the following are not typos
 #       the rk3566 uses the same bl31/2 as the rk3568
 do_deploy:rk3566() {
@@ -47,25 +53,31 @@ do_deploy:rk3566() {
 	# Prebuilt OPTEE-OS
 	install -m 644 ${S}/bin/rk35/rk3568_bl32_v*.bin ${DEPLOYDIR}/tee-rk3566.bin
 	# Prebuilt U-Boot TPL (DDR init)
-	install -m 644 ${S}/bin/rk35/rk3566_ddr_1056MHz_v1.21.bin ${DEPLOYDIR}/ddr-rk3566.bin
+	install -m 644 ${S}/bin/rk35/${DDRBIN_FILE} ${DEPLOYDIR}/ddr-rk3566.bin
 }
 
+DDRBIN_VERS:rk3568 ?= "v1.21"
+DDRBIN_FILE:rk3568 ?= "rk3568_ddr_1560MHz_${DDRBIN_VERS}.bin"
+
 do_deploy:rk3568() {
 	# Prebuilt TF-A
 	install -m 644 ${S}/bin/rk35/rk3568_bl31_v*.elf ${DEPLOYDIR}/bl31-rk3568.elf
 	# Prebuilt OPTEE-OS
 	install -m 644 ${S}/bin/rk35/rk3568_bl32_v*.bin ${DEPLOYDIR}/tee-rk3568.bin
 	# Prebuilt U-Boot TPL (DDR init)
-	install -m 644 ${S}/bin/rk35/rk3568_ddr_1560MHz_v1.21.bin ${DEPLOYDIR}/ddr-rk3568.bin
+	install -m 644 ${S}/bin/rk35/${DDRBIN_FILE} ${DEPLOYDIR}/ddr-rk3568.bin
 }
 
+DDRBIN_VERS:rk3588s ?= "v1.16"
+DDRBIN_FILE:rk3588s ?= "rk3588_ddr_lp4_2112MHz_lp5_2400MHz_${DDRBIN_VERS}.bin"
+
 do_deploy:rk3588s() {
 	# Prebuilt TF-A
 	install -m 644 ${S}/bin/rk35/rk3588_bl31_v*.elf ${DEPLOYDIR}/bl31-rk3588.elf
 	# Prebuilt OPTEE-OS
 	install -m 644 ${S}/bin/rk35/rk3588_bl32_v*.bin ${DEPLOYDIR}/tee-rk3588.bin
 	# Prebuilt U-Boot TPL (DDR init)
-	install -m 644 ${S}/bin/rk35/rk3588_ddr_lp4_2112MHz_lp5_2400MHz_v1.16.bin ${DEPLOYDIR}/ddr-rk3588.bin
+	install -m 644 ${S}/bin/rk35/${DDRBIN_FILE} ${DEPLOYDIR}/ddr-rk3588.bin
 }
 
 do_deploy() {