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From: Ahmad Fatoum <a.fatoum@pengutronix.de>
To: Nikolaus Voss <nikolaus.voss@haag-streit.com>,
	Srinivas Kandagatla <srinivas.kandagatla@linaro.org>,
	Shawn Guo <shawnguo@kernel.org>,
	Sascha Hauer <s.hauer@pengutronix.de>,
	Pengutronix Kernel Team <kernel@pengutronix.de>,
	Fabio Estevam <festevam@gmail.com>,
	NXP Linux Team <linux-imx@nxp.com>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Rob Herring <robh+dt@kernel.org>,
	nv@vosn.de
Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 1/2] nvmem: imx-ocotp: reverse MAC on imx6qdl
Date: Mon, 28 Nov 2022 09:02:16 +0100	[thread overview]
Message-ID: <96c1ed7e-a2b7-a9a3-f7d4-12eeb099e14b@pengutronix.de> (raw)
In-Reply-To: <20221128074901.8D80B135A@mail.steuer-voss.de>

Hello Nikolaus,

On 24.11.22 17:50, Nikolaus Voss wrote:
> Ethernet MAC on iMX6Q/DL is stored in OTP in little-endian byte order. I
> suspect that this is true for all iMX flavors. If so, we could get rid
> of the .reverse_mac_address attribute entirely.

I also think all i.MX flavors are similar here. The barebox driver has had
a MAC address parsing function for a few years[1] and it's the same for
all i.MX variants. The only different SoC is VF610, but that has a standalone
driver in Linux.

[1]: https://elixir.bootlin.com/barebox/v2022.11.0/source/drivers/nvmem/ocotp.c#L551

> Signed-off-by: Nikolaus Voss <nikolaus.voss@haag-streit.com>

Reviewed-by: Ahmad Fatoum <a.fatoum@pengutronix.de>

Cheers,
Ahmad

> ---
>  drivers/nvmem/imx-ocotp.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/nvmem/imx-ocotp.c b/drivers/nvmem/imx-ocotp.c
> index 14284e866f26e..a39a0defb070a 100644
> --- a/drivers/nvmem/imx-ocotp.c
> +++ b/drivers/nvmem/imx-ocotp.c
> @@ -496,6 +496,7 @@ static const struct ocotp_params imx6q_params = {
>  	.bank_address_words = 0,
>  	.set_timing = imx_ocotp_set_imx6_timing,
>  	.ctrl = IMX_OCOTP_BM_CTRL_DEFAULT,
> +	.reverse_mac_address = true,
>  };
>  
>  static const struct ocotp_params imx6sl_params = {

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      reply	other threads:[~2022-11-28  8:02 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-11-24 16:50 [PATCH 1/2] nvmem: imx-ocotp: reverse MAC on imx6qdl Nikolaus Voss
2022-11-28  8:02 ` Ahmad Fatoum [this message]

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