netdev - Re: [PATCH v4 2/4] Documentation: Bindings: Add STM32 DWMAC glue

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Message-ID: <20160305043142.GK13525@rob-hp-laptop>
Date:	Fri, 4 Mar 2016 22:31:42 -0600
From:	Rob Herring <robh@...nel.org>
To:	Alexandre TORGUE <alexandre.torgue@...il.com>
Cc:	Maxime Coquelin <mcoquelin.stm32@...il.com>,
	Giuseppe Cavallaro <peppe.cavallaro@...com>,
	netdev@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
	manabian@...il.com
Subject: Re: [PATCH v4 2/4] Documentation: Bindings: Add STM32 DWMAC glue

On Fri, Mar 04, 2016 at 04:58:04PM +0100, Alexandre TORGUE wrote:
> Signed-off-by: Alexandre TORGUE <alexandre.torgue@...il.com>
> 
> diff --git a/Documentation/devicetree/bindings/net/stm32-dwmac.txt b/Documentation/devicetree/bindings/net/stm32-dwmac.txt
> new file mode 100644
> index 0000000..fd3566f
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/net/stm32-dwmac.txt
> @@ -0,0 +1,35 @@
> +STMicroelectronics STM32 / MCU DWMAC glue layer controller
> +
> +This file documents platform glue layer for stmmac.
> +Please see stmmac.txt for the other unchanged properties.
> +
> +The device node has following properties.
> +
> +Required properties:

> +- compatible:  Should be "st,stm32-dwmac" to select glue, and
> +	       "snps,dwmac-3.50a" to select IP vesrion.
> +- clocks: Should contain the GMAC main clock, and tx clock

> +- compatible:  Should be "st,stm32-dwmac" to select glue and
> +	       "snps,dwmac-3.50a" to select IP version.
> +- clocks: Must contain an entry for each entry in clock-names.

???

> +- clock-names: Should be "stmmaceth" for the host clock.
> +	       Should be "tx-clk" for the MAC TX clock.
> +	       Should be "rx-clk" for the MAC RX clock.
> +- st,syscon : Should be phandle/offset pair. The phandle to the syscon node which
> +	      encompases the glue register, and the offset of the control register.
> +Example:
> +
> +		ethernet0: dwmac@...28000 {
> +			compatible = "st,stm32-dwmac", "snps,dwmac-3.50a";
> +			status = "disabled";
> +			reg = <0x40028000 0x8000>;
> +			reg-names = "stmmaceth";
> +			interrupts = <0 61 0>, <0 62 0>;
> +			interrupt-names = "macirq", "eth_wake_irq";
> +			clock-names = "stmmaceth", "tx-clk", "rx-clk";
> +			clocks = <&rcc 0 25>, <&rcc 0 26>, <&rcc 0 27>;
> +			st,syscon = <&syscfg 0x4>;
> +			snps,pbl = <8>;
> +			snps,mixed-burst;
> +			dma-ranges;
> +		};
> -- 
> 1.9.1
>