rv1126_rv1109: update prebuilt-packages

Signed-off-by: Weiwen Chen <cww@rock-chips.com>
Change-Id: Ia6def05f205fe3b936aaea89b8b5cd935315d292

rv1126_rv1109/prebuilt-packages/build-busybox/Readme.txt

@@ -15,8 +15,10 @@ make busybox_defconfig
 # compile, Notice: the cross compile tool is in the prebuilts directory of SDK
 make ARCH=arm install CROSS_COMPILE=~/RV1109-SDK/prebuilts/gcc/linux-x86/arm/gcc-arm-8.3-2019.03-x86_64-arm-linux-gnueabihf/bin/arm-linux-gnueabihf- -j32
 
-# unpackage base root filesystem which is pre-built bin, e.g. target-emmc-v1.0.0.tar.bz2
-tar xjf target-emmc-v1.0.0.tar.bz2
+cd ..
+
+# unpackage base root filesystem which is pre-built bin, e.g. target-emmc-v1.1.0.tar.bz2
+tar xjf target-emmc-v1.1.0.tar.bz2
 
 # copy busybox target bin and libs to target directory (option)
 cp busybox-1.27.2/_install/* target/ -rfa
@@ -24,6 +26,11 @@ cp busybox-1.27.2/_install/* target/ -rfa
 # package root filesystem with squashfs
 mksquashfs target rootfs.squashfs -noappend -comp xz
 
+# for spi nor
+# package root filesystem with squashfs
+# --pad : partition size
+mkfs.jffs2 -r target -o rootfs.jffs2 --pad=0x400000 -n
+
 # package root filesystem with ext4, e.g.
 tar xjf tools.tar.bz2
 ./tools/mkfs-ext4/do-mkfs.ext4.sh target rootfs.ext4 64M