Re: [PATCH v3 2/4] Documentation: Bindings: Add STM32 DWMAC glue
From: Rob Herring <robh@kernel.org>
Date: 2016-03-02 18:33:25
Also in:
linux-arm-kernel, linux-devicetree, lkml
From: Rob Herring <robh@kernel.org>
Date: 2016-03-02 18:33:25
Also in:
linux-arm-kernel, linux-devicetree, lkml
On Fri, Feb 26, 2016 at 11:51:50AM +0100, Alexandre TORGUE wrote:
Signed-off-by: Alexandre TORGUE <redacted>diff --git a/Documentation/devicetree/bindings/net/stm32-dwmac.txt b/Documentation/devicetree/bindings/net/stm32-dwmac.txt new file mode 100644 index 0000000..67fceda --- /dev/null +++ b/Documentation/devicetree/bindings/net/stm32-dwmac.txt@@ -0,0 +1,40 @@ +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: Should contain the MAC main clock +- clock-names: Should contain the clock names "stmmaceth". +- 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. + +Optional properties: +- clocks: Could contain: + - the tx clock, + - the rx clock +- clock-names: Could contain the clock names "tx-clk", "rx-clk"
Either the IP block has 3 clocks or it has 1. If you have a case where 1 clock feeds all 3 inputs, then list the clock 3 times. Rob