ARMADA espressobin SATA drive detection failure

[Shinichiro Kawasaki]

On Aug 26, 2022 / 14:05, Marek Behún wrote:
> On Fri, 26 Aug 2022 05:00:20 +0000
> Shinichiro Kawasaki <shinichiro.kawasaki at wdc.com> wrote:
> 
> > On Aug 26, 2022 / 00:15, Marek Behún wrote:
> > > On Thu, 25 Aug 2022 15:00:59 +0200
> > > Pali Rohár <pali at kernel.org> wrote:
> > >   
> > > > On Sunday 14 August 2022 01:10:50 Pali Rohár wrote:  
> > > > > On Saturday 13 August 2022 23:02:34 Shinichiro Kawasaki wrote:  
> > 
> > [...]
> > 
> > > > > Perfect! So the issue is with mvebu_a3700_comphy_reset() function.
> > > > > 
> > > > > This function is not in TF-A code and neither in my original kernel
> > > > > driver implementation (still available here):
> > > > > https://git.kernel.org/pub/scm/linux/kernel/git/pali/linux.git/commit/?h=phy-mvebu-a3700-comphy&id=4588902a3528195bcfdda9f9e1e14262a1955df1
> > > > > 
> > > > > Marek, this function mvebu_a3700_comphy_reset() was implemented by you.
> > > > > Could you please look at it, why you added this function and try to fix
> > > > > it? Is this function needed at all?    
> > > > 
> > > > PING? Any progress here?  
> > > 
> > > Not yet, sorry. Maybe we could do something like I am attaching, until
> > > I have time to play with it?
> > > 
> > > See attached file.  
> > 
> > Merek, thanks for the response. I applied the attached patch to v5.18.16 kernel
> > and observed the "ata1: SATA link down (SStatus 100 SControl 300)" message is
> > avoided. It looks working.
> > 
> 
> Hello Shinichiro,
> 
> would you be able to test another patch I am attaching, on clean kernel?
> Whether your disk works or not...

Sure, but unfortunately, it did not work. With "a3720-comphy-test-2.patch",
still the error "ata1: SATA link down (SStatus 100 SControl 300)" is printed,
and my SSD is not detected.

To be precise, this time I switched base kernel from v5.18.16 to v5.19.4, since
v5.18.y branch reached to EOL. With v5.19.4, my observation is consistent with
v5.18.16.

- v5.18.16:
   without patch: error "ata1: SATA link down (SStatus 100 SControl 300)"
   with "a3720-comphy-sata.patch": no ata error. my SSD detected

- v5.19.4:
   without patch: error "ata1: SATA link down (SStatus 100 SControl 300)"
   with "a3720-comphy-sata.patch": no ata error. my SSD detected
   with "a3720-comphy-test-2.patch": error "ata1: SATA link down (SStatus 100 SControl 300)"

-- 
Shin'ichiro Kawasaki