diff --git a/rv1126_rv1109/BoardConfig-38x38-spi-nand-rv1109.mk b/rv1126_rv1109/BoardConfig-38x38-spi-nand.mk
similarity index 96%
rename from rv1126_rv1109/BoardConfig-38x38-spi-nand-rv1109.mk
rename to rv1126_rv1109/BoardConfig-38x38-spi-nand.mk
index ae4dced..8c98c88 100644
--- a/rv1126_rv1109/BoardConfig-38x38-spi-nand-rv1109.mk
+++ b/rv1126_rv1109/BoardConfig-38x38-spi-nand.mk
@@ -19,7 +19,7 @@ export RK_BOOT_IMG=zboot.img
 # kernel image path
 export RK_KERNEL_IMG=kernel/arch/arm/boot/zImage
 # parameter for GPT table
-export RK_PARAMETER=parameter-fit-128M.txt
+export RK_PARAMETER=parameter-fit-256M-nand.txt
 # Buildroot config
 export RK_CFG_BUILDROOT=rockchip_rv1126_rv1109_spi_nand
 # Recovery config
diff --git a/rv1126_rv1109/parameter-fit-nand-256M.txt b/rv1126_rv1109/parameter-fit-nand-256M.txt
new file mode 100644
index 0000000..0b3c59a
--- /dev/null
+++ b/rv1126_rv1109/parameter-fit-nand-256M.txt
@@ -0,0 +1,12 @@
+FIRMWARE_VER: 8.1
+MACHINE_MODEL: RV1126
+MACHINE_ID: 007
+MANUFACTURER: RV1126
+MAGIC: 0x5041524B
+ATAG: 0x00200800
+MACHINE: 0xffffffff
+CHECK_MASK: 0x80
+PWR_HLD: 0,0,A,0,1
+TYPE: GPT
+CMDLINE: mtdparts=rk29xxnand:0x00002000@0x00004000(uboot),0x00004000@0x00006000(boot),0x00064000@0x0000A000(rootfs),-@0x0006E000(userdata:grow)
+uuid:rootfs=614e0000-0000-4b53-8000-1d28000054a9