On Tue, Sep 29, 2026 at 06:51:24PM -0700, E Shattow wrote: > Hi, > > On 9/29/26 17:43, Marek Vasut wrote: > > On 9/30/26 1:07 AM, E Shattow wrote: > >> Platform drivers and hardware for StarFive JH-7110 SoC are not capable of > >> DMA access above 4GB > > > > 4 GiB > > Yes, I agree.
Fixing as I apply.
>
> >
> >> . This was previously a problem for MMC access then
> >> resolved by a workaround, since reverted in a3075db94d49 ("lmb: Reinstate
> >> access to memory above ram_top"). The symptom of this is EFI boot failure
> >> of GRUB from EFI System Partition on USB MSC with a starfive_visionfive2
> >> board target that has the on-chip Cadence USB, tested with Pine64 Star64.
> >>
> >> Restore the workaround with a dependency on LMB_LIMIT_DMA_BELOW_RAM_TOP.
> >>
> >> Signed-off-by: E Shattow <[email protected]>
> >
> > Reviewed-by: Marek Vasut <[email protected]>
>
> Looks good to me as suggested.
>
> Thanks, -E
>
>
--
Tom
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