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From: Rob Herring <robh@kernel.org>
To: "Rafał Miłecki" <zajec5@gmail.com>
Cc: "Srinivas Kandagatla" <srinivas.kandagatla@linaro.org>,
	"Krzysztof Kozlowski" <krzysztof.kozlowski+dt@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>,
	"Miquel Raynal" <miquel.raynal@bootlin.com>,
	"Michael Walle" <michael@walle.cc>,
	devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, u-boot@lists.denx.de,
	"Rafał Miłecki" <rafal@milecki.pl>
Subject: Re: [PATCH 1/3] dt-bindings: nvmem: u-boot,env: add MAC's #nvmem-cell-cells
Date: Sun, 8 Jan 2023 16:17:34 -0600	[thread overview]
Message-ID: <20230108221734.GA345366-robh@kernel.org> (raw)
In-Reply-To: <20230105171038.13649-1-zajec5@gmail.com>

On Thu, Jan 05, 2023 at 06:10:36PM +0100, Rafał Miłecki wrote:
> From: Rafał Miłecki <rafal@milecki.pl>
> 
> U-Boot's "ethaddr" environment variable is very often used to store
> *base* MAC address. It's used as a base for calculating addresses for
> multiple interfaces. It's done by adding proper values. Actual offsets
> are picked by manufacturers and vary across devices.
> 
> Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
> ---
>  Documentation/devicetree/bindings/nvmem/u-boot,env.yaml | 7 ++++++-
>  1 file changed, 6 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/nvmem/u-boot,env.yaml b/Documentation/devicetree/bindings/nvmem/u-boot,env.yaml
> index cbc5c69fd405..1c139bd689ea 100644
> --- a/Documentation/devicetree/bindings/nvmem/u-boot,env.yaml
> +++ b/Documentation/devicetree/bindings/nvmem/u-boot,env.yaml
> @@ -50,7 +50,11 @@ properties:
>  
>    ethaddr:
>      type: object
> -    description: Ethernet interface's MAC address
> +    description:
> +      Ethernet interfaces base MAC address. The first argument is an offset.

The 2nd sentence belongs in the '#nvmem-cell-cells' description.

> +    properties:
> +      "#nvmem-cell-cells":
> +        const: 1
>  
>  additionalProperties: false
>  
> @@ -72,6 +76,7 @@ examples:
>              reg = <0x40000 0x10000>;
>  
>              mac: ethaddr {
> +                #nvmem-cell-cells = <1>;
>              };
>          };
>      };
> -- 
> 2.34.1
> 
> 

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WARNING: multiple messages have this Message-ID (diff)
From: Rob Herring <robh@kernel.org>
To: "Rafał Miłecki" <zajec5@gmail.com>
Cc: "Srinivas Kandagatla" <srinivas.kandagatla@linaro.org>,
	"Krzysztof Kozlowski" <krzysztof.kozlowski+dt@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>,
	"Miquel Raynal" <miquel.raynal@bootlin.com>,
	"Michael Walle" <michael@walle.cc>,
	devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, u-boot@lists.denx.de,
	"Rafał Miłecki" <rafal@milecki.pl>
Subject: Re: [PATCH 1/3] dt-bindings: nvmem: u-boot,env: add MAC's #nvmem-cell-cells
Date: Sun, 8 Jan 2023 16:17:34 -0600	[thread overview]
Message-ID: <20230108221734.GA345366-robh@kernel.org> (raw)
In-Reply-To: <20230105171038.13649-1-zajec5@gmail.com>

On Thu, Jan 05, 2023 at 06:10:36PM +0100, Rafał Miłecki wrote:
> From: Rafał Miłecki <rafal@milecki.pl>
> 
> U-Boot's "ethaddr" environment variable is very often used to store
> *base* MAC address. It's used as a base for calculating addresses for
> multiple interfaces. It's done by adding proper values. Actual offsets
> are picked by manufacturers and vary across devices.
> 
> Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
> ---
>  Documentation/devicetree/bindings/nvmem/u-boot,env.yaml | 7 ++++++-
>  1 file changed, 6 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/nvmem/u-boot,env.yaml b/Documentation/devicetree/bindings/nvmem/u-boot,env.yaml
> index cbc5c69fd405..1c139bd689ea 100644
> --- a/Documentation/devicetree/bindings/nvmem/u-boot,env.yaml
> +++ b/Documentation/devicetree/bindings/nvmem/u-boot,env.yaml
> @@ -50,7 +50,11 @@ properties:
>  
>    ethaddr:
>      type: object
> -    description: Ethernet interface's MAC address
> +    description:
> +      Ethernet interfaces base MAC address. The first argument is an offset.

The 2nd sentence belongs in the '#nvmem-cell-cells' description.

> +    properties:
> +      "#nvmem-cell-cells":
> +        const: 1
>  
>  additionalProperties: false
>  
> @@ -72,6 +76,7 @@ examples:
>              reg = <0x40000 0x10000>;
>  
>              mac: ethaddr {
> +                #nvmem-cell-cells = <1>;
>              };
>          };
>      };
> -- 
> 2.34.1
> 
> 

  parent reply	other threads:[~2023-01-08 22:18 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-01-05 17:10 [PATCH 1/3] dt-bindings: nvmem: u-boot,env: add MAC's #nvmem-cell-cells Rafał Miłecki
2023-01-05 17:10 ` [PATCH 1/3] dt-bindings: nvmem: u-boot, env: " Rafał Miłecki
2023-01-05 17:10 ` [PATCH 1/3] dt-bindings: nvmem: u-boot,env: " Rafał Miłecki
2023-01-05 17:10 ` [PATCH 2/3] nvmem: core: allow .read_post_process() callbacks to adjust data length Rafał Miłecki
2023-01-05 17:10   ` Rafał Miłecki
2023-01-05 21:22   ` Michael Walle
2023-01-05 21:22     ` Michael Walle
2023-01-05 17:10 ` [PATCH 3/3] nvmem: u-boot-env: post process "ethaddr" env variable Rafał Miłecki
2023-01-05 17:10   ` Rafał Miłecki
2023-01-05 21:00   ` kernel test robot
2023-01-08 22:17 ` Rob Herring [this message]
2023-01-08 22:17   ` [PATCH 1/3] dt-bindings: nvmem: u-boot,env: add MAC's #nvmem-cell-cells Rob Herring

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