Date: Fri, 29 Nov 2019 15:54:31 +0200 From: Nick Kostirya <nikolay.kostirya@i11.co> To: Milan Obuch <milan@obuch.sk> Cc: freebsd-arm@freebsd.org, Emmanuel Vadot <manu@bidouilliste.com> Subject: Re: gpioiic FDT overlays for sun8i-h3 Message-ID: <20191129155431.05d4e14f@thinkpad> In-Reply-To: <20191129144316.739c8664@zeta.dino.sk> References: <20191128152901.39dbeb4d@thinkpad> <20191128062149.577be86eb7dc15ae5805f31a@bidouilliste.com> <20191129153754.28fb5763@thinkpad> <20191129144316.739c8664@zeta.dino.sk>
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From: Nick Kostirya <nikolay.kostirya@i11.co>
To: Milan Obuch <milan@obuch.sk>
Subject: Re: gpioiic FDT overlays for sun8i-h3
Date: Fri, 29 Nov 2019 15:53:05 +0200
X-Mailer: Claws Mail 3.17.4 (GTK+ 2.24.32; i386-portbld-freebsd12.0)
On Fri, 29 Nov 2019 14:43:16 +0100
Milan Obuch <milan@obuch.sk> wrote:
> On Fri, 29 Nov 2019 15:37:54 +0200
> Nick Kostirya via freebsd-arm <freebsd-arm@freebsd.org> wrote:
>
> > On Thu, 28 Nov 2019 06:21:49 +0100
> > Emmanuel Vadot <manu@bidouilliste.com> wrote:
> >
> > > Try this but I haven't even compiled it :
> > >
> > > /dts-v1/;
> > > /plugin/;
> > >
> > > / {
> > > compatible = "allwinner,sun8i-h3";
> > > };
> > >
> > > &{/soc/pinctrl@1c20800} {
> > > gpioiic0 {
> > > compatible = "gpioiic";
> > > scl = <0>; /* GPIO pin 00 (PA0) */
> > > sda = <2>; /* GPIO pin 02 (PA2) */
> > >
> > > };
> > > };
> >
> > Maybe I must rebuild all u-boot with this overlay?
> >
> > Because the overlay do not help when it is in /boot/dtb/overlays/ and
> > /boot/msdos/dtb/overlays/.
> >
>
> Did you add in /boot/loader.conf line like
>
> fdt_overlays="gpioiic"
Yes.
I have
fdt_overlays="sun8i-h3-sid,sun8i-h3-ths,sun8i-h3-opp,sun8i-h3-gpio-iic0"
where sun8i-h3-gpio-iic0 if gpioiic overlay.
I see gpioiic in ofwdump -a output.
>
> (gpioiic is name of your module in /boot/dtb/overlays)? Overlays are
> processed by loader of ours (freeBSD), not u-boot, AFAIK...
By the way why do we need /boot/msdos/dtb/overlays/?
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