ARM64 – Odroid C2 – Working U-Boot.. – Adventures With Linux ™

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

Luka Kovačič on January 17, 2017 at 15:25 said:

Will this ne merged to the mainline U-boot? Does IPv6 work?

Reply ↓
- RG on January 18, 2017 at 21:19 said:
  
  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.
  
  Reply ↓
joghurt on January 27, 2017 at 14:05 said:

Have you ever try to get some more informations out from the bootloader (BL1, BL2)

Reply ↓
aggiebbt on February 2, 2017 at 05:24 said:

You mentioned booting from the eMMC. Will it boot from the uSD card? What toolchain are you using to compile?

Reply ↓
- RG on February 3, 2017 at 10:39 said:
  
  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.
  
  Reply ↓
Thomas on March 21, 2017 at 13:26 said:

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

Reply ↓
- RG on March 21, 2017 at 22:46 said:
  
  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.
  
  Reply ↓
  - thomas on March 22, 2017 at 13:04 said:
    
    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
    
    Reply ↓
Freddy on March 21, 2017 at 14:54 said:

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

Reply ↓

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ARM64 – Odroid C2 – Working U-Boot..

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

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