Message-ID: <8fa36ec0a6252db4b0c7fbbf09de5e816d634206.camel@pengutronix.de>
Subject: Re: [PATCH v3 2/2] arm64: dts: imx8m: define proper status for caam
 jr
From:   Lucas Stach <l.stach@pengutronix.de>
To:     Michael Walle <michael@walle.cc>,
        Rouven Czerwinski <r.czerwinski@pengutronix.de>
Cc:     ZHIZHIKIN Andrey <andrey.zhizhikin@leica-geosystems.com>,
        linux-kernel@vger.kernel.org, peng.fan@nxp.com, ping.bai@nxp.com,
        alice.guo@nxp.com, agx@sigxcpu.org, krzk@kernel.org,
        leonard.crestez@nxp.com, festevam@gmail.com, marex@denx.de,
        herbert@gondor.apana.org.au, horia.geanta@nxp.com,
        daniel.baluta@nxp.com, frieder.schrempf@kontron.de,
        linux-imx@nxp.com, devicetree@vger.kernel.org,
        hongxing.zhu@nxp.com, s.hauer@pengutronix.de, pankaj.gupta@nxp.com,
        robh+dt@kernel.org, thunder.leizhen@huawei.com, martink@posteo.de,
        aford173@gmail.com, linux-arm-kernel@lists.infradead.org,
        gregkh@linuxfoundation.org, shengjiu.wang@nxp.com,
        qiangqing.zhang@nxp.com, op-tee@lists.trustedfirmware.org,
        linux-crypto@vger.kernel.org, kernel@pengutronix.de,
        shawnguo@kernel.org, davem@davemloft.net, jun.li@nxp.com
Date:   Fri, 07 Jan 2022 12:58:58 +0100
In-Reply-To: <4ed84dc354eee36067ade567097ddd68@walle.cc>
References: <20211111164601.13135-1-andrey.zhizhikin@leica-geosystems.com>
         <20211207230206.14637-1-andrey.zhizhikin@leica-geosystems.com>
         <20211207230206.14637-3-andrey.zhizhikin@leica-geosystems.com>
         <aa84249b7e099cf23b49016433b22ae541c0a41d.camel@pengutronix.de>
         <AM6PR06MB469100A5D7A069AF84A83EEFA64C9@AM6PR06MB4691.eurprd06.prod.outlook.com>
         <30312d09effae6b78309723a7261f85915b8d5b8.camel@pengutronix.de>
         <4ed84dc354eee36067ade567097ddd68@walle.cc>
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Am Freitag, dem 07.01.2022 um 12:47 +0100 schrieb Michael Walle:
> Hi Rouven,
> 
> Am 2022-01-07 10:46, schrieb Rouven Czerwinski:
> > .. since AFAIK i.MX8M* can not be run without TF-A.
> 
> Are you sure? There probably aren't any boards out there
> without TF-A, but why shouldn't it work without it?

PSCI, i.e. the only means to start the secondary CPUs, is implemented
in TF-A, so it's very unlikely that anyone would want to run a system
without TF-A. Also quite a bit of the lowlevel SoC initialization is
implemented in TF-A.

Regards,
Lucas