[U-Boot] Mainline u-boot installation on Odroid-UX4

[Przemyslaw Marczak]

Hello Shawn.

On 04/07/2016 11:35 AM, Shawn Guo wrote:
> Hi Przemyslaw, Anand,
>
> I just got a Odroid-UX4 board to play.  I installed firmware (bl1, bl2,
> tzsw, u-boot) from hardkernel using sd_fusing.sh, and the board boots
> fine.  But when I install mainline u-boot v2016.03 by following
> doc/README.odroid, the board refuses to boot with nothing appearing on
> serial console.
>
> Here is what I did:
>
>   - make odroid-xu3_defconfig
>   - make (using arm-linux-gnueabi-gcc 4.7.3)
>   - copy u-boot.bin (which is same as u-boot-dtb.bin in v2016.03 release)
>     to sd_fuse/hardkernel folder, and modify sd_fusing.sh to get it point
>     to this new U-Boot
>   - ./sd_fusing.sh /dev/sdX to flash the SD card

We can assume, that the aboce steps are ok.

>
> One thing I'm not sure is the offset that firmware should be installed
> to SD card.  The doc/README.odroid and hardkernel sd_fusing.sh tells
> different ones.
>
> doc/README.odroid:
>
>   -------------------------------------
> |  Binary   | Block offset| part type |
> |   name    | SD   | eMMC |(eMMC only)|
>   -------------------------------------
> | Bl1       | 1    | 0    |  1 (boot) |
> | Bl2       | 31   | 30   |  1 (boot) |
> | U-Boot    | 63   | 62   |  1 (boot) |
> | Tzsw      | 2111 | 2110 |  1 (boot) |
> | Uboot Env | 2560 | 2560 |  0 (user) |
>   -------------------------------------
>
> sd_fusing.sh:
>
> signed_bl1_position=1
> bl2_position=31
> uboot_position=63
> tzsw_position=719
> env_position=1231
>
> I tried both sets, and neither works for me.
>
> I know Odroid-UX4 is supported by mainline U-Boot today, so there must
> be something missing from my setup.  Could you please help me here?
> Thanks.
>
> Shawn
>
>

There were two variants of boot chain with U-Boot for XU3/XU4, which 
differs in U-Boot size - originally U-Boot was 328K, but for the 
mainline we assume 1MB of size.

So for mainline, you need a prober version of BL2, which loads 1MB of 
U-Boot instead of 328K - in other way, the mainline U-Boot will be 
overwritten by tzsw and env.

Please use the resources from this site:
https://github.com/hardkernel/u-boot/tree/odroidxu3-v2012.07/sd_fuse/hardkernel_1mb_uboot

In sd_fuse.1M.sh, you can see, that for U-Boot area we have: 2111-63 == 
2048blk == 1MB.

And of course change the U-Boot to mainline.

Best regards,
-- 
Przemyslaw Marczak
Samsung R&D Institute Poland
Samsung Electronics
p.marczak at samsung.com