linux-kernel - Argh, can't find dcache properties !

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Message-ID: <be8c123a90f6d1664a902b6ad6c754b9f3d9e567.camel@alliedtelesis.co.nz>
Date:   Mon, 23 Mar 2020 02:25:57 +0000
From:   Chris Packham <Chris.Packham@...iedtelesis.co.nz>
To:     "christophe.leroy@....fr" <christophe.leroy@....fr>,
        "paulus@...ba.org" <paulus@...ba.org>,
        "mpe@...erman.id.au" <mpe@...erman.id.au>,
        "benh@...nel.crashing.org" <benh@...nel.crashing.org>,
        "tglx@...utronix.de" <tglx@...utronix.de>,
        "cai@....pw" <cai@....pw>
CC:     "linuxppc-dev@...ts.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Hamish Martin <Hamish.Martin@...iedtelesis.co.nz>
Subject: Argh, can't find dcache properties !

Hi All,

Just booting up v5.5.11 on a Freescale T2080RDB and I'm seeing the
following mesage.

kern.warning linuxbox kernel: Argh, can't find dcache properties !
kern.warning linuxbox kernel: Argh, can't find icache properties !

This was changed from DBG() to pr_warn() in commit 3b9176e9a874
("powerpc/setup_64: fix -Wempty-body warnings") but the message seems
to be much older than that. So it's probably been an issue on the T2080
(and other QorIQ SoCs) for a while.

Looking at the code the t208x doesn't specifiy any of the d-cache-
size/i-cache-size properties. Should I add them to silence the warning
or switch it to pr_debug()/pr_info()?

Thanks,
Chris