[U-Boot] How to test new bootloaders on Jetson TX1?

[Jon Hunter]

On 15/02/18 12:32, Andreas Färber wrote:
> Am 15.02.2018 um 10:22 schrieb Jon Hunter:
>> On 15/02/18 01:51, Andreas Färber wrote:
>>> I would like to test the latest version of U-Boot on the Jetson TX1.
> [...]
>>> Here's what I have tried:
>>>
>>> $ sudo ./flash.sh p2371-2180-devkit mmcblk0p1
>> This should work. Which u-boot binary are you copying and where are you
>> copying it?
>>
>> I copy the u-boot-dtb.bin over u-boot.bin in the L4T directory
>> Linux_for_Tegra/bootloader/t186ref/p2771-0000/500/u-boot.bin.
> 
> I downloaded the .rpm from
> https://build.opensuse.org/package/show/hardware:boot/u-boot-p2371-2180
> extracting all of u-boot, u-boot.bin, u-boot.dtb and u-boot-dtb.bin to
> bootloader/t210ref/p2371-2180/ - and as described it makes a difference
> in that it then ceases to boot to a U-Boot prompt.

Sorry, looks like I mixed TX1 and TX2. I see you are using TX1. However,
I believe you are still booting the wrong u-boot file.

If you look at the p2371-2180-devkit.conf you will see that it has ...

 DFLT_KERNEL_IMAGE="bootloader/${target_board}/p2371-2180/u-boot.bin

For using the upstream u-boot, we need to use the u-boot-dtb.bin and not
the u-boot.bin. So you can either ...

1. Update the p2371-2180-devkit.conf to use the u-boot-dtb.bin that you
copied.
2. Move the u-boot-dtb.bin from your rpm to
bootloader/t210ref/p2371-2180/u-boot.bin.

Cheers
Jon

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