[PATCH v2] imx: imx8mp: Add support for Polyhex Debix Model A SBC

[Gilles Talis]

Hi Milan,

Le jeu. 7 déc. 2023 à 11:09, Milan Zamazal <mzamazal at redhat.com> a écrit :

> Peng Fan <peng.fan at oss.nxp.com> writes:
>
> > On 5/24/2023 3:21 AM, Gilles Talis wrote:
> >> Add support for the Polyhex Debix Model A SBC board.
> >> It is an industrial grade single board computer based on
> >> NXP's i.MX 8M Plus.
> >> Currently supported interfaces are:
> >> - Serial console
> >> - Micro SD
> >> - eQOS and FEC Ethernet
> >> imx8mp-debix-model-a.dts is taken from Linux 6.3.
> >> Signed-off-by: Gilles Talis<gilles.talis at gmail.com>
> >
> > Reviewed-by: Peng Fan <peng.fan at nxp.com>
>
> Do you know why the patch has been left (as far as I can see) without
> further action?
>
I don't know. I assume the maintainer is very busy or has missed it. I was
planning to do a resend in the next few weeks.


>
> BTW, I applied it to current master, compiled approximately following
> https://docs.u-boot.org/en/latest/board/nxp/imx8mp_evk.html and tried to
> use it on Debix Model A.  U-Boot starts but cannot find the partition
> table on the SD card:
>
>   U-Boot SPL 2024.01-rc3-07226-g43f2873fa9-dirty (Jan 01 1980 - 00:00:00
> +0000)
>   Normal Boot
>   WDT:   Started watchdog at 30280000 with servicing every 1000ms (60s
> timeout)
>   Trying to boot from BOOTROM
>   Boot Stage: Primary boot
>   image offset 0x8000, pagesize 0x200, ivt offset 0x0
>   NOTICE:  BL31: v2.2(release):rel_imx_5.4.70_2.3.6-0-g15e8ff164-dirty
>   NOTICE:  BL31: Built : 00:00:00, Jan  1 1980
>
>
>   U-Boot 2024.01-rc3-07226-g43f2873fa9-dirty (Jan 01 1980 - 00:00:00 +0000)
>
>   CPU:   Freescale i.MX8MP[8] rev1.1 at 1200 MHz
>   Reset cause: POR
>   Model: Polyhex Debix Model A i.MX8MPlus board
>   DRAM:  2 GiB
>   Core:  83 devices, 22 uclasses, devicetree: separate
>   WDT:   Started watchdog at 30280000 with servicing every 1000ms (60s
> timeout)
>   MMC:   FSL_SDHC: 1, FSL_SDHC: 2
>   Loading Environment from MMC... *** Warning - bad CRC, using default
> environment
>
>   In:    serial at 30890000
>   Out:   serial at 30890000
>   Err:   serial at 30890000
>   Net:   eth1: ethernet at 30bf0000 [PRIME]
>   Hit any key to stop autoboot:  2 <0x08><0x08><0x08> 1 <0x08><0x08><0x08>
> 0
>   switch to partitions #0, OK
>   mmc1 is current device
>   Scanning mmc 1:1...
>   ,** No partition table - mmc 1 **
>   Couldn't find partition mmc 1:1
>   ,** No partition table - mmc 1 **
>   Couldn't find partition mmc 1:1
>   ,** No partition table - mmc 1 **
>   Couldn't find partition mmc 1:1
>   ,** No partition table - mmc 1 **
>   Couldn't find partition mmc 1:1
>   ,** No partition table - mmc 1 **
>   Couldn't find partition mmc 1:1
>   ,** No partition table - mmc 1 **
>   Couldn't find partition mmc 1:1
>   ,** No partition table - mmc 1 **
>   Couldn't find partition mmc 1:1
>   <0x1b>7<0x1b>[r<0x1b>[999;999H<0x1b>[6n<0x1b>8Card did not respond to
> voltage select! : -110
>   No EFI system partition
>   No EFI system partition
>   Failed to persist EFI variables
>   Remove /soc at 0/bus at 30800000/ethernet at 30be0000:phy-reset-gpios
>   BootOrder not defined
>   EFI boot manager: Cannot load any image
>   ,** No partition table - mmc 1 **
>   Couldn't find partition mmc 1:1
>   Card did not respond to voltage select! : -110
>   u-boot=>
>
> When I use an old U-Boot blob provided by Debix, it boots fine from the
> same SD card.  The SD card contains a Fedora aarch64 image with a msdos
> partition table.
>
> Do you know what could be wrong?
>
Interesting. I don't have a clue yet,. but let me give it a try and come
back to you. Where can I download the Fedora aarch64 image you mentioned
above?


>
> Regards,
> Milan
>
> Thanks!
Gilles.