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From:   Adam Ford <aford173@gmail.com>
Date:   Sun, 21 Nov 2021 08:34:57 -0600
Message-ID: <CAHCN7xKJBHY1o94VDkBaXXFjMUm=5WoshddT4DVWD04aiPV8MA@mail.gmail.com>
Subject: Re: [PATCH V3 0/9] arm64: imx8mn: Enable more imx8m Nano functions
To:     Fabio Estevam <festevam@gmail.com>
Cc:     Tim Harvey <tharvey@gateworks.com>,
        Linux ARM Mailing List <linux-arm-kernel@lists.infradead.org>,
        Adam Ford-BE <aford@beaconembedded.com>,
        "Ariel D'Alessandro" <ariel.dalessandro@collabora.com>,
        Krzysztof Kozlowski <krzk@kernel.org>,
        Lucas Stach <l.stach@pengutronix.de>,
        Device Tree Mailing List <devicetree@vger.kernel.org>,
        Shawn Guo <shawnguo@kernel.org>,
        Sascha Hauer <s.hauer@pengutronix.de>,
        Pengutronix Kernel Team <kernel@pengutronix.de>,
        NXP Linux Team <linux-imx@nxp.com>,
        open list <linux-kernel@vger.kernel.org>
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On Sun, Nov 21, 2021 at 8:21 AM Fabio Estevam <festevam@gmail.com> wrote:
>
> Hi Adam,
>
> On Sun, Nov 21, 2021 at 11:17 AM Adam Ford <aford173@gmail.com> wrote:
>
> > I am using https://source.codeaurora.org/external/imx/imx-atf/log/?h=lf_v2.4
> >
> > Since the driver sending SMCC commands to ATF isn't doing that, I
> > assume it's safe to use the linux power-domain drivers with the ATF
> > from NXP's kernel.
> >
> > If you can point me to the repo you think I should be using, I'll give it a try.
>
> Do you know if the mainline TF-A repo v2.5 works too?
> https://github.com/ARM-software/arm-trusted-firmware/tree/v2.5

That's good to know.

I just built it into U-Boot:

NOTICE:  BL31: v2.5(release):v2.5
NOTICE:  BL31: Built : 08:24:13, Nov 21 2021

The Etnaviv driver is still loading without hanging

root@beacon-imx8mn-kit:~# dmesg |grep -i etna
[   12.393936] etnaviv etnaviv: bound 38000000.gpu (ops gpu_ops [etnaviv])
[   12.400676] etnaviv-gpu 38000000.gpu: model: GC7000, revision: 6203
[   12.641297] [drm] Initialized etnaviv 1.3.0 20151214 for etnaviv on minor 0


>
> Thanks