bootstd: CACHE Misaligned operation errors (Marvell Armada 385)

[Tom Rini]

On Wed, Sep 13, 2023 at 12:56:53PM -0700, Tony Dinh wrote:
> Hi Tom,
> 
> On Wed, Sep 13, 2023 at 9:22 AM Tom Rini <trini at konsulko.com> wrote:
> >
> > On Tue, Sep 12, 2023 at 12:38:00PM -0700, Tony Dinh wrote:
> >
> > > I've been testing the boostd for a few Marvell boards and seeing this
> > > error on the Thecus N2350 (Marvell Armada 385, dual-core CPU). The
> > > "bootflow scan scsi" command triggered the "CACHE: Misaligned
> > > operation at range" error. However, this error did not affect the
> > > result of the scan, i.e. the bootflow for scsi partition was created
> > > correctly, and u-boot is running normally.
> > >
> > > Enabling CONFIG_SYS_DCACHE_OFF got rid of the errors altogether.
> > > Perhaps this is a case where the DCACHE is not required and should be
> > > turned off?
> > >
> > > Please see the log after the break below.
> >
> > Can you please try -next ?  There's at least one SCSI related cache
> > alignment fix there that's not in master, thanks.
> 
> Unfortunately I got the same errors. This time the ranges are
> different, of course.
> 
> master:
> 
> N2350 > bootflow scan scsi
> CACHE: Misaligned operation at range [3fb99f88, 3fb9a388]
> CACHE: Misaligned operation at range [3fb99f88, 3fb9a388]
> CACHE: Misaligned operation at range [3fb99f88, 3fb9a388]
> ERROR: v7_outer_cache_inval_range - start address is not aligned - 0x3fb99f88
> ERROR: v7_outer_cache_inval_range - stop address is not aligned - 0x3fb9a388
> 
> next:
> 
> N2350 > bootflow scan scsi
> CACHE: Misaligned operation at range [3fb80388, 3fb80788]
> CACHE: Misaligned operation at range [3fb80388, 3fb80788]
> CACHE: Misaligned operation at range [3fb80388, 3fb80788]
> ERROR: v7_outer_cache_inval_range - start address is not aligned - 0x3fb80388
> ERROR: v7_outer_cache_inval_range - stop address is not aligned - 0x3fb80788

Can you debug to where these calls are so we can align these buffers?
See 02660defdc8a ("scsi: Cache align temporary buffer") for an example.

-- 
Tom
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