ARM64 – Odroid C2 – Working U-Boot..

Thanks to Heiner Kallweit, there is now a functional version of U-Boot for the Odroid C2, at https://github.com/hkallweit/u-boot ..

I have installed it on my C2 (eMMC) and it works fine..    Nice to have a functioning > saveenv command, at last..

U-Boot 2017.01-rc3 (Jan 14 2017 - 02:22:15 -0800) odroid-c2

DRAM: 2 GiB
MMC: meson_mmc: 0, meson_mmc: 1
In: serial@4c0
Out: serial@4c0
Err: serial@4c0
Net: eth0: ethernet@c9410000
Hit any key to stop autoboot: 0
=> setenv bootdelay 10
=> saveenv
Saving Environment to MMC...
Writing to MMC(0)... done

The u-boot parameters I use are:

setenv loadaddr "0x20000000"
setenv dtb_loadaddr "0x01000000"
setenv initrd_high "0xffffffff"
setenv fdt_high "0xffffffff"
setenv kernel_filename boot/uboot/Image
setenv fdt_filename boot/uboot/meson-gxbb-odroidc2.dtb
setenv bootargs "root=/dev/mmcblk0p1 rootwait rw"
setenv bootcmd "ext4load mmc 0:1 '${loadaddr}' '${kernel_filename}'; ext4load mmc 0:1 '${dtb_loadaddr}' '${fdt_filename}'; booti '${loadaddr}' - '${dtb_loadaddr}'"

Robert Gadsdon.   January 14,2017.


Comments

ARM64 – Odroid C2 – Working U-Boot.. — 9 Comments

    • That is the problem.. A lot of C2 patches seem to have got ‘lost’.. I found u-boot patches for mmc support back in summer 2016, but they were never merged..
      I don’t have any means of testing IPv6 (yet..).
      RG.

    • According to the source, it should boot from an SDcard, but I don’t have one to test. I am using the standard Fedora aarch64 cross-compiler.

      RG.

  1. Hi,

    could you please explain what steps you did to get a working and signed version of u-boot.
    This would be great!

    Thanks and regards
    Thomas

    • The instructions can be found in ~/u-boot/board/amlogic/odroid-c2/README..
      Kernel 4.10.x works OK, with Ethernet stable, now, but USB – at least on my system – is still unreliable..
      RG.

      • Thanks! u-boot is running – but – now i’m stuck with the kernel. The Image (3.14.79+) already installed on the mmc won’t bootup with the new u-boot.

        U-Boot 2017.01-rc3-g4297961 (Mar 22 2017 – 12:31:57 +0100) odroid-c2

        DRAM: 2 GiB
        MMC: meson_mmc: 0, meson_mmc: 1
        In: serial@4c0
        Out: serial@4c0
        Err: serial@4c0
        Net: eth0: ethernet@c9410000
        => booti
        Bad Linux ARM64 Image magic!

        Do you have an instruction set how to setup a new Image and initrd based on 4.10.4? I don’t know how to get rid off this “bad image magic”.

        Your config provided here is not up to date anymore. There are more config settings to be done. E.g.
        ARM_DMA_IOMMU_ALIGNMENT, Kernel compression mode, …
        Do you have an update for this?

        Thanks and regards
        Thomas

  2. Strangely, with this u-boot version MAC address is nor randomized (running 2 boards is getting a bit problematic)

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.