On 7/26/2021 2:21 PM, Piotr Oniszczuk wrote:
Arend,
Neil Armstrong hinted me issue might be related to usage of memcpy() to/from an iomem mapping.
arm64 memcpy update (285133040e6c ("arm64: Import latest memcpy()/memmove() implementation")) triggers a memory abort when dram-access-quirk
is used on the G12A/G12B platforms.
I reverted https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/drivers/mmc/host/meson-gx-mmc.c?h=v5.13.4&id=103a5348c22c3fca8b96c735a9e353b8a0801842
and got nicely working wifi.
So it looks root cause is amlogic specific - not brcmfmac.
Sorry for false report and many many thx for Your head-up!
Hi Piotr,
Thanks for letting me know. I hadn't worked yet on the patch I had in
mind and I suspect it would not have helped.
Regards,
Arend
