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

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