Date: Thu, 28 Nov 2019 14:49:34 +0100 From: Milan Obuch <freebsd-arm@dino.sk> To: freebsd-arm@freebsd.org Subject: Re: gpioiic FDT overlays for sun8i-h3 Message-ID: <20191128144934.34289c13@zeta.dino.sk> In-Reply-To: <20191128152901.39dbeb4d@thinkpad> References: <20191128152901.39dbeb4d@thinkpad>
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On Thu, 28 Nov 2019 15:29:01 +0200
Nick Kostirya via freebsd-arm <freebsd-arm@freebsd.org> wrote:
> Hello.
> I want use gpioiic on Nanopi NEO with PA0 and PA2 pins.
> Nanopi NEO will be master.
> Help me, please, to write overlay.
> I write:
>
> /dts-v1/;
> /plugin/;
>
> / {
> compatible = "allwinner,sun8i-h3";
> };
>
> &{/soc/} {
> gpio: gpio {
> gpio-controller;
>
> gpioiic0 {
> compatible = "gpioiic";
> gpios = <&gpio 00 1 0 &gpio 02 1 0>; /* Attach to GPIO
> pins 00 and 02. Set them initially as inputs. */ scl = <0>; /*
> GPIO pin 00 (PA0) */ sda = <1>; /* GPIO pin 02 (PA2) */
>
> };
> };
> };
>
> But it is not worked.
> Tell me, please, where I was wrong.
>
Quick question - which OS version? According to my experience, DTB
overlays do not work in FreeBSD 12, but everything is OK with them in
FreeBSD 13.
Regards,
Milan
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