From: Jonathan Gray <jsg@jsg.id.au>
Subject: Re: Alder Lake eMMC needs the same 0V quirk as Jasper/Apollo/Gemini Lake
To: "Sven F." <sven.falempin@gmail.com>
Cc: tech@openbsd.org
Date: Tue, 2 Apr 2024 23:36:20 +1100

On Tue, Apr 02, 2024 at 08:26:40AM -0400, Sven F. wrote:
> On Thu, Mar 28, 2024 at 10:51 PM Jonathan Gray <jsg@jsg.id.au> wrote:
> 
> > On Thu, Mar 28, 2024 at 12:34:17PM -0400, Sven F. wrote:
> > >
> > > Is there any real device working without the NOPWR0 flag ?
> >
> > I've committed adding EHL to the table.  I'm curious if it still works
> > with this:
> >
> > Index: sys/dev/sdmmc/sdhc.c
> > ===================================================================
> > RCS file: /cvs/src/sys/dev/sdmmc/sdhc.c,v
> > diff -u -p -r1.76 sdhc.c
> > --- sys/dev/sdmmc/sdhc.c        1 Oct 2023 08:56:24 -0000       1.76
> > +++ sys/dev/sdmmc/sdhc.c        29 Mar 2024 02:37:29 -0000
> > @@ -594,8 +594,7 @@ sdhc_bus_power(sdmmc_chipset_handle_t sc
> >         /*
> >          * Disable bus power before voltage change.
> >          */
> > -       if (!(hp->sc->sc_flags & SDHC_F_NOPWR0))
> > -               HWRITE1(hp, SDHC_POWER_CTL, 0);
> > +       HCLR1(hp, SDHC_POWER_CTL, SDHC_BUS_POWER);
> >
> >         /* If power is disabled, reset the host and return now. */
> >         if (ocr == 0) {
> >
> 
> result:
> sdmmc0: can't enable card

Thanks, I'll leave it as is for now.