diff --git a/rk3126c/parameter-buildroot.txt b/rk3126c/parameter-buildroot.txt
index 0c972c6..8552133 100644
--- a/rk3126c/parameter-buildroot.txt
+++ b/rk3126c/parameter-buildroot.txt
@@ -8,7 +8,7 @@ MACHINE: 3126
 CHECK_MASK: 0x80
 PWR_HLD: 0,0,A,0,1
 TYPE: GPT
-CMDLINE: mtdparts=rk29xxnand:0x00001000@0x00002000(uboot),0x00001000@0x00003000(trust),0x00000800@0x00004000(misc),0x00004000@0x00004800(boot),0x00007000@0x00008800(recovery),0x0000A000@0x0000f800(oem),0x0001e000@0x00019800(rootfs),-@0x00037800(userdata:grow)
+CMDLINE: mtdparts=rk29xxnand:0x00001000@0x00002000(uboot),0x00001000@0x00003000(trust),0x00000800@0x00004000(misc),0x00004000@0x00004800(boot),0x00007000@0x00008800(recovery),0x0000A000@0x0000f800(oem),0x00020800@0x00019800(rootfs),-@0x0003A000(userdata:grow)
 uuid:rootfs=614e0000-0000-4b53-8000-1d28000054a9
 # partition size default
-# 2MB(uboot),2MB(trust),1MB(misc),8MB(boot),14MB(recovery),20MB(oem),60MB(rootfs),-(userdata)
\ No newline at end of file
+# 2MB(uboot),2MB(trust),1MB(misc),8MB(boot),14MB(recovery),20MB(oem),65MB(rootfs),-(userdata)
diff --git a/rk3128/parameter-buildroot.txt b/rk3128/parameter-buildroot.txt
index 582f168..0a857be 100644
--- a/rk3128/parameter-buildroot.txt
+++ b/rk3128/parameter-buildroot.txt
@@ -8,7 +8,7 @@ MACHINE: 3128
 CHECK_MASK: 0x80
 PWR_HLD: 0,0,A,0,1
 TYPE: GPT
-CMDLINE: mtdparts=rk29xxnand:0x00001000@0x00002000(uboot),0x00001000@0x00003000(trust),0x00000800@0x00004000(misc),0x00004000@0x00004800(boot),0x00007000@0x00008800(recovery),0x0000A000@0x0000f800(oem),0x0001e000@0x00019800(rootfs),-@0x00037800(userdata:grow)
+CMDLINE: mtdparts=rk29xxnand:0x00001000@0x00002000(uboot),0x00001000@0x00003000(trust),0x00000800@0x00004000(misc),0x00004000@0x00004800(boot),0x00007000@0x00008800(recovery),0x0000A000@0x0000F800(oem),0x00020800@0x00019800(rootfs),-@0x0003A000(userdata:grow)
 uuid:rootfs=614e0000-0000-4b53-8000-1d28000054a9
 # partition size default
-# 2MB(uboot),2MB(trust),1MB(misc),8MB(boot),14MB(recovery),20MB(oem),60MB(rootfs),-(userdata)
\ No newline at end of file
+# 2MB(uboot),2MB(trust),1MB(misc),8MB(boot),14MB(recovery),20MB(oem),65MB(rootfs),-(userdata)