[PATCH 1/1] vexpress_ca9x4: Enable use of correct DTB file and restore EFI loader.

[Kristian Amlie <kristian.amlie@northern.tech>]

On 28/03/2020 11:12, Heinrich Schuchardt wrote:
> On 3/28/20 10:36 AM, Heinrich Schuchardt wrote:
>> On 3/27/20 8:18 AM, Kristian Amlie wrote:
>>> On 27/03/2020 06:44, Heinrich Schuchardt wrote:
>>>> On 3/27/20 2:39 AM, Tom Rini wrote:
>>>>> On Tue, Feb 25, 2020 at 06:22:16PM +0100, Kristian Amlie wrote:
>>>>>
>>>>>> EFI was disabled in f95b8a4b5f64f because of the missing DTB file,
>>>>>> and indeed, the DTB file is required to load recent versions of GRUB
>>>>>> (2.04) correctly.
>>>>>>
>>>>>> Signed-off-by: Kristian Amlie <kristian.amlie@northern.tech>
>>>>>
>>>>> Applied to u-boot/master, thanks!
>>>>>
>>>>
>>>> Since this patch is merged I get errors on Gitlab for vexpress_ca9x4:
>>>>
>>>> https://gitlab.denx.de/u-boot/custodians/u-boot-efi/-/jobs/69269
>>>>
>>>> Filename 'lib/efi_loader/helloworld.efi'.
>>>> Load address: 0x60000000
>>>> Loading: *\b#
>>>> ????? 1.8 MiB/s
>>>> done
>>>> Bytes transferred = 1840 (730 hex)
>>>> smc911x: MAC 52:54:00:12:34:56
>>>> => => crc32 60000000 $filesize
>>>> CRC32 for 60000000 ... 6000072f ==> f5c77855
>>>> => => bootefi 60000000
>>>> ^[7^[[r^[[999;999H^[[6n^[8Scanning disks on mmc...
>>>> Card did not respond to voltage select!
>>>> MMC Device 1 not found
>>>> MMC Device 2 not found
>>>> MMC Device 3 not found
>>>> Found 0 disks
>>>> ERROR: need device tree
>>>
>>> Is the "bootefi 60000000" command correct? Doesn't "bootefi" need to be
>>> called with both an EFI binary address and a device tree address?
>>>
>>
>> bootefi uses $fdtcontroladdr as fallback for the device tree. But this
>> variable is only available if CONFIG_OF_CONTROL is set. We should adjust
>> the python test to check this.
>>
>> CONFIG_DEFAULT_FDT_FILE="vexpress-v2p-ca9.dtb"
>> This line is incorrect. We never use a .dtb extension here.
> 
> I got that wrong. There are two variables which are somewhat related:
> 
> CONFIG_DEFAULT_DEVICE_TREE="meson-gxbb-odroidc2"
> CONFIG_DEFAULT_FDT_FILE="vexpress-v2p-ca9.dtb"
> 
> One uses the extension, the other doesn't.
> 
> So your patch seems to be correct. The error is in the Python test that
> does not check if OF_CONTROL is set.

Thanks for figuring that out!

-- 
Kristian

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