Re: [PATCH 2/2] dt-binding: mediatek-dwmac: add binding document for MediaTek MT2712 DWMAC
From: Rob Herring <robh@kernel.org>
Date: 2018-11-12 16:22:07
Also in:
linux-arm-kernel, linux-devicetree, linux-mediatek
On Mon, Oct 29, 2018 at 11:04:54AM +0800, Biao Huang wrote:
quoted hunk ↗ jump to hunk
The commit adds the device tree binding documentation for the MediaTek DWMAC found on MediaTek MT2712. Signed-off-by: Biao Huang <redacted> --- .../devicetree/bindings/net/mediatek-dwmac.txt | 49 ++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/mediatek-dwmac.txtdiff --git a/Documentation/devicetree/bindings/net/mediatek-dwmac.txt b/Documentation/devicetree/bindings/net/mediatek-dwmac.txt new file mode 100644 index 0000000..8baf0e4 --- /dev/null +++ b/Documentation/devicetree/bindings/net/mediatek-dwmac.txt@@ -0,0 +1,49 @@ +MediaTek 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 "mediatek,mt2712-gmac" for MT2712 SoC +- reg: Address and length of the register set for the device +- interrupts: Should contain the MAC interrupts +- interrupt-names: Should contain a list of interrupt names corresponding to + the interrupts in the interrupts property, if available. + Should be "macirq" for the main MAC IRQ +- clocks: Must contain a phandle for each entry in clock-names. +- clock-names: the name of the clock listed in the clocks property. These are + "axi", "apb", "mac_ext", "mac_parent", "ptp_ref", "ptp_parent", "ptp_top" + for MT2712 SoC
Clocks should represent the physical clocks connected to a block. Parent clocks are not in that category.
+- mac-address: See ethernet.txt in the same directory
+- phy-mode: See ethernet.txt in the same directory
+
+Example:
+
+ eth: ethernet@1101c000 {
+ compatible = "mediatek,mt2712-gmac";
+ reg = <0 0x1101c000 0 0x1300>;
+ interrupts = <GIC_SPI 237 IRQ_TYPE_LEVEL_LOW>;
+ interrupt-names = "macirq";
+ phy-mode ="rgmii-id";
+ mac-address = [00 55 7b b5 7d f7];
+ clock-names = "axi",
+ "apb",
+ "mac_ext",
+ "mac_parent",
+ "ptp_ref",
+ "ptp_parent",
+ "ptp_top";
+ clocks = <&pericfg CLK_PERI_GMAC>,
+ <&pericfg CLK_PERI_GMAC_PCLK>,
+ <&topckgen CLK_TOP_ETHER_125M_SEL>,
+ <&topckgen CLK_TOP_ETHERPLL_125M>,
+ <&topckgen CLK_TOP_ETHER_50M_SEL>,
+ <&topckgen CLK_TOP_APLL1_D3>,
+ <&topckgen CLK_TOP_APLL1>;
+ snps,txpbl = <32>;
+ snps,rxpbl = <32>;
+ snps,reset-gpio = <&pio 87 GPIO_ACTIVE_LOW>;
+ snps,reset-active-low;
+ };
--
1.7.9.5