diff --git a/meta-aspeed/conf/machine/evb-ast2500.conf b/meta-aspeed/conf/machine/evb-ast2500.conf
index 81365d4..2689d37 100644
--- a/meta-aspeed/conf/machine/evb-ast2500.conf
+++ b/meta-aspeed/conf/machine/evb-ast2500.conf
@@ -1,8 +1,4 @@
-KMACHINE = "aspeed"
-KERNEL_DEVICETREE = "${KMACHINE}-ast2500-evb.dtb"
-
+KERNEL_DEVICETREE = "aspeed-ast2500-evb.dtb"
 UBOOT_MACHINE = "ast_g5_phy_config"
 
-FLASH_SIZE = "32768"
-
 require conf/machine/include/ast2500.inc