gistfile1.txt

Updating the BananaPi ALARM kernel the "easy" way

Install latest ALARM ARMv7 kernel:

# pacman -S linux-armv7

Copy /boot/zImage and your board-specific .dtb to the boot partition:

# mount /dev/mmcblk0p1 /mnt
# cp /boot/zImage /boot/dtbs/sun7i-a20-bananapi.dtb /mnt

Create /mnt/boot.cmd with the following contents:

fatload mmc 0 0x46000000 zImage
fatload mmc 0 0x49000000 sun7i-a20-bananapi.dtb
setenv bootargs console=ttyS0,115200 root=/dev/mmcblk0p2 rootwait panic=10
bootz 0x46000000 - 0x49000000

Replace fatload with ext2load if needed.

If you are using an older U-Boot you might require the following line to keep the extracted kernel from overwriting the device tree configuration:

setenv fdt_high ffffffff

If you wish to use an initramfs, then the bootz command becomes:

bootz 0x46000000 0x<initramfs-address> 0x49000000

Now generate uEnv.txt:

# cd /mnt; mv uEnv.txt uEnv.txt.old
# mkimage -C none -A arm -T script -d boot.cmd uEnv.txt