Re: Only 400kHz on eMMC with Allwinner Pinebook on 13.1-RELEASE

On Wed, May 25, 2022 at 04:14:48PM +0200, Emmanuel Vadot wrote:
> On Wed, 18 May 2022 20:39:30 +0200
> Bernd Walter <[email protected]> wrote:
> 
> > I did a binary update from 13.0 with freebsd-update
> > I did no U-Boot update however.
> > Installing and booting kernel seemed to work, but it came up rather slow.
> > And installing the userland took 6h.
> > I have an internal eMMC and an additional uSD card.
> > The uSD card worked fine and probes at 50MHz.
> > The eMMC however is probed with 400kHz only and the pmc fails to attach.
> 
>  Are you sure that you didn't updated u-boot ?

I don't know when I did the last u-boot update.
At least I kept it when updating from 13.0 p-something to 13.1.
However, in the meantime I did an update (with the arm64 package content)
and now the screen stays black.
Not sure when I will find time to investigate.
At least I'm happy that I didn't update one of my Pine64 first.

>  Because the PMIC error looks like it's still in i2c mode and not in
> RSB mode.
>  This was fixed in
> https://cgit.freebsd.org/src/commit/sys/arm/allwinner/aw_rsb.c?id=12faeba9953ac7fa5198b258dcd80f89b3b4b947
> but it seems that I forgot to MFC it so 13.1 doesn't have it.
> 
>  The eMMC problem is likely due to the PMIC problem (we can't switch
> the car to an higher speed as we can't change the voltage).
> 
>  I'm travelling right now so can't test if applying this commit will
> solve everything.
> 
>  Cheers,
> -- 
> Emmanuel Vadot <[email protected]> <[email protected]>
> 

-- 
B.Walter <[email protected]> https://www.bwct.de
Modbus/TCP Ethernet I/O Baugruppen, ARM basierte FreeBSD Rechner uvm.