Date:   Wed, 15 Feb 2023 13:51:56 +0100
From:   Andrew Lunn <andrew@lunn.ch>
To:     Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Cc:     Lee Jones <lee@kernel.org>, Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        "David S. Miller" <davem@davemloft.net>,
        Eric Dumazet <edumazet@google.com>,
        Jakub Kicinski <kuba@kernel.org>,
        Paolo Abeni <pabeni@redhat.com>,
        Emil Renner Berthing <kernel@esmil.dk>,
        Conor Dooley <conor@kernel.org>,
        Palmer Dabbelt <palmer@dabbelt.com>,
        Paul Walmsley <paul.walmsley@sifive.com>,
        Albert Ou <aou@eecs.berkeley.edu>,
        Giuseppe Cavallaro <peppe.cavallaro@st.com>,
        Alexandre Torgue <alexandre.torgue@foss.st.com>,
        Jose Abreu <joabreu@synopsys.com>,
        Maxime Coquelin <mcoquelin.stm32@gmail.com>,
        Richard Cochran <richardcochran@gmail.com>,
        Sagar Kadam <sagar.kadam@sifive.com>,
        Yanhong Wang <yanhong.wang@starfivetech.com>,
        devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
        netdev@vger.kernel.org, linux-riscv@lists.infradead.org,
        linux-stm32@st-md-mailman.stormreply.com,
        linux-arm-kernel@lists.infradead.org, kernel@collabora.com
Subject: Re: [PATCH 08/12] net: stmmac: Add glue layer for StarFive JH7100 SoC
Message-ID: <Y+zVbPppy7jvWF5r@lunn.ch>
References: <20230211031821.976408-1-cristian.ciocaltea@collabora.com>
 <20230211031821.976408-9-cristian.ciocaltea@collabora.com>
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 <d1769dac-9e80-2f0d-6a5c-386ef70e1547@collabora.com>
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On Wed, Feb 15, 2023 at 02:08:01AM +0200, Cristian Ciocaltea wrote:
> On 2/11/23 18:11, Andrew Lunn wrote:
> > > +
> > > +#define JH7100_SYSMAIN_REGISTER28 0x70
> > > +/* The value below is not a typo, just really bad naming by StarFive ¯\_(ツ)_/¯ */
> > > +#define JH7100_SYSMAIN_REGISTER49 0xc8
> > 
> > Seems like the comment should be one line earlier?
> > 
> > There is value in basing the names on the datasheet, but you could
> > append something meaningful on the end:
> > 
> > #define JH7100_SYSMAIN_REGISTER49_DLYCHAIN 0xc8
> > 
> > ???
> 
> Unfortunately the JH7100 datasheet I have access to doesn't provide any
> information regarding the SYSCTRL-MAINSYS related registers. Maybe Emil
> could provide some details here?

If you have no reliable source of naming, just make a name up from how
the register is used. This is why i suggested adding _DLYCHAIN,
because that is what is written to it. You should be able to do the
same with register 28.

     Andrew