From eef8811d9219d197d158cda9233ce2f78ea0a790 Mon Sep 17 00:00:00 2001 From: Chen-Yu Tsai Date: Mon, 14 May 2018 03:14:21 +0800 Subject: dt-bindings: net: dwmac-sun8i: Add binding for GMAC on Allwinner R40 SoC The Allwinner R40 SoC has the EMAC controller supported by dwmac-sun8i. It is named "GMAC", while EMAC refers to the 10/100 Mbps Ethernet controller supported by sun4i-emac. The controller is the same, but the R40 has the glue layer controls in the clock control unit (CCU), with a reduced RX delay chain, and no TX delay chain. This patch adds the R40 specific bits to the dwmac-sun8i binding. Signed-off-by: Chen-Yu Tsai Reviewed-by: Rob Herring Acked-by: Maxime Ripard Signed-off-by: David S. Miller --- Documentation/devicetree/bindings/net/dwmac-sun8i.txt | 3 +++ 1 file changed, 3 insertions(+) diff --git a/Documentation/devicetree/bindings/net/dwmac-sun8i.txt b/Documentation/devicetree/bindings/net/dwmac-sun8i.txt index 1c0906a5c02b..cfe724398a12 100644 --- a/Documentation/devicetree/bindings/net/dwmac-sun8i.txt +++ b/Documentation/devicetree/bindings/net/dwmac-sun8i.txt @@ -7,6 +7,7 @@ Required properties: - compatible: must be one of the following string: "allwinner,sun8i-a83t-emac" "allwinner,sun8i-h3-emac" + "allwinner,sun8i-r40-gmac" "allwinner,sun8i-v3s-emac" "allwinner,sun50i-a64-emac" - reg: address and length of the register for the device. @@ -25,8 +26,10 @@ Required properties: Optional properties: - allwinner,tx-delay-ps: TX clock delay chain value in ps. Range is 0-700. Default is 0. + Unavailable for allwinner,sun8i-r40-gmac - allwinner,rx-delay-ps: RX clock delay chain value in ps. Range is 0-3100. Default is 0. + Range is 0-700 for allwinner,sun8i-r40-gmac Both delay properties need to be a multiple of 100. They control the clock delay for external RGMII PHY. They do not apply to the internal PHY or external non-RGMII PHYs. -- cgit v1.2.1