Re: [PATCH 2/3] k3-am62-pocketbeagle2: add initial board support

["Marko Mäkelä" <marko.makela@iki.fi>]

Thu, Mar 26, 2026 at 06:23:20PM -0500, Randolph Sapp wrote:
[snip]
>Alright, looking into the allocation helpers it seems that
>EFI_CONVENTIONAL_MEMORY can be remapped in efi_allocate_pages so long as LMB
>agrees that it's free. This aligns with my understanding of the UEFI spec as
>well. I dumped the EFI memory map and noticed there were 2 fragmented sections
>of EFI_CONVENTIONAL_MEMORY that it could still use.
>
>Wired up efi_allocate_pages to go to those regions and attempt to allocate from
>there in the even an LMB_MEM_ALLOC_MAX or LMB_MEM_ALLOC_ANY start failing. Seems
>to have worked, but now I'm seeing the following reported in the kernel:
[snip]

I can't help with that, but I hope that someone can. Because I intend to 
work on improvements related to secure boot and FIT verification, having 
this board working in the current u-boot would be really great. I'm 
looking forward to test a revised patch set.

Coincidentally, I just got a PocketBeagle 2 yesterday. It took a while 
for me to find some useful u-boot source code. I came across 
https://github.com/beagleboard/u-boot/commit/64be5e474943dc5c6e6e01edc124ff6f53f616a4 
which is a few changes ahead of u-boot:

64be5e47494 arm: dts: k3-am62-r5-pocketbeagle2: remove chosen uart override
e1207aad9b0 arm: dts: k3-am62-pocketbeagle2: add boot phase flag to uart6
23f9fc5d6da arm: mach-k3: am62: add &main_uart6 to clock and pwr tree
156a9bb1410 add: k3-am62-pocketbeagle2

On a merge to the current u-boot master, I discarded a change to 
k3_get_a53_max_frequency(void) by 156a9bb1410 because that function has 
been replaced with am62p_map[]. In that array, the clock rates for the 
speed grades S,T,U,V would conflict with patch. I don't expect this to 
be essential, but I thought that I would mention it because there were 
no adjustments to the speed grade in this patch set.

With best regards,

	Marko