diff --git a/u-boot/rk2410/fork.conf b/u-boot/rk2410/fork.conf
index a1161b4..02a2a39 100644
--- a/u-boot/rk2410/fork.conf
+++ b/u-boot/rk2410/fork.conf
@@ -48,6 +48,15 @@ bsp_rk3568() {
     RKBIN_DDR="${BSP_SOC}_ddr_1560MHz_v"
 }
 
+bsp_rk3576() {
+    BSP_SOC="rk3576"
+    RKBIN_DDR="${BSP_SOC}_ddr_lp4_2112MHz_lp5_2736MHz_v"
+}
+
+bsp_radxa-cm4-rpi-cm4-io() {
+    bsp_rk3576
+}
+
 bsp_rk3588() {
     BSP_SOC="rk3588"
     RKBIN_DDR="${BSP_SOC}_ddr_lp4_2112MHz_lp5_2400MHz"