[PATCH 0/2] configs: JH7110: enable EFI_LOADER_BOUNCE_BUFFER

[Sughosh Ganu]

On Fri, 22 Nov 2024 at 04:12, E Shattow <lucent at gmail.com> wrote:
>
> On Thu, Nov 21, 2024 at 8:05 AM Heinrich Schuchardt
> <heinrich.schuchardt at canonical.com> wrote:
> >
> > On 21.11.24 16:24, Andreas Schwab wrote:
> > > On Nov 21 2024, Heinrich Schuchardt wrote:
> > >
> > >> Our MMC driver for JH7110 boards only supports reading to the low 4 GiB of
> > >> memory. Booting boards with more memory requires EFI_LOADER_BOUNCE_BUFFER.
> > >
> > > That doesn't change the situation with the booting problem I have.
> > >
> >
> > Do you relate to
> > https://lore.kernel.org/u-boot/mvm8qtnv310.fsf@suse.de/
> > where you had some problem reading the FAT file system and which was for
> > as system with only 4 GiB of memory?
> >
> > In E Shattow's case on a board with 8 GiB the file was read without
> > error but then reported as not being an EFI binary.
> >
> > Best regards
> >
> > Heinrich
> >
> >
>
> Hi,
>
> Test failed for both boards here with origin/master then applying this
> series, then starfive_visionfive2_defconfig target and set
> CONFIG_BOOTSTD=n following with oldconfig target.

I think you need to apply another patch [1].

-sughosh

[1] - https://patchwork.ozlabs.org/project/uboot/patch/20241121142522.59059-2-heinrich.schuchardt@canonical.com/

>
> Testing failed on 4GB Star64:
>
> Hit any key to stop autoboot:  0
> Unknown command 'bootflow' - try 'help'
> StarFive # bootefi bootmgr
> Card did not respond to voltage select! : -110
> Not a PE-COFF file
> Loading Boot0000 'mmc 0' failed
> Booting: nvme 0
> error: no such partition.
> grub rescue>
>
> The grub EFI loader from EFI System Partition on eMMC fails to load.
> The same EFI System Partition data on NVMe is successful.
>
> Testing failed on 8GB Mars CM Lite:
>
> Hit any key to stop autoboot:  0
> Unknown command 'bootflow' - try 'help'
> StarFive # bootefi bootmgr
> Card did not respond to voltage select! : -110
> Failed to load EFI variables
> Error reading cluster
> Loading Boot0000 'mmc 0' failed
> EFI boot manager: Cannot load any image
>
> We see that the grub EFI loader from this EFI System Partition fails
> to load from MMC (SD Card).
>
> Procedure that was used to update SPI NOR flash on either board
> includes sanitizing the environment variable storages:
> env erase; env default -a -f; sf probe; dhcp; env set serverip <ip
> address of tftp server>
> tftpboot $loadaddr u-boot-spl.bin.normal.out; sf update $loadaddr 0 $filesize
> tftpboot $loadaddr u-boot.itb; sf update $loadaddr 100000 $filesize
> fatrm mmc 0:1 ubootefi.var
>
> This does not say anything for or against the validity of the patch
> series as the root cause is a limitation of the dw mmc driver on
> JH7110 not resolved here.
>
> -E