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

[Anand Moon]

Hi Shwan,

On 7 April 2016 at 15:50, Przemyslaw Marczak <p.marczak at samsung.com> wrote:
> 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

Adding to this you requires

mainline u-boot requires boot.scr file to boot.

$ mkimage -C none -A arm -T script -d
board/samsung/common/bootscripts/autoboot.cmd boot.scr
$ cp boot.scr /media/boot/

Because Przemyslaw Marczak has implemented card detection logic for
Odroid XU3/XU4 board.

You need to use following exynos5422-odroidxu4.dtb DTB file in /media/boot/

Best Regards
-Anand Moon