| Message ID | 20200619191554.24942-6-geert+renesas@glider.be |
|---|---|
| State | New |
| Headers | show |
| Series | ravb: Add support for explicit internal clock delay configuration | expand |
diff --git a/arch/arm64/boot/dts/renesas/hihope-rzg2-ex.dtsi b/arch/arm64/boot/dts/renesas/hihope-rzg2-ex.dtsi index acfcfd050a6cb2d5..c2ce2aaea6e6d64b 100644 --- a/arch/arm64/boot/dts/renesas/hihope-rzg2-ex.dtsi +++ b/arch/arm64/boot/dts/renesas/hihope-rzg2-ex.dtsi @@ -19,7 +19,7 @@ pinctrl-0 = <&avb_pins>; pinctrl-names = "default"; phy-handle = <&phy0>; - phy-mode = "rgmii-txid"; + renesas,txc-delay-ps = <2000>; status = "okay"; phy0: ethernet-phy@0 { diff --git a/arch/arm64/boot/dts/renesas/r8a774a1.dtsi b/arch/arm64/boot/dts/renesas/r8a774a1.dtsi index 51a572898fd68a7d..192900c716990860 100644 --- a/arch/arm64/boot/dts/renesas/r8a774a1.dtsi +++ b/arch/arm64/boot/dts/renesas/r8a774a1.dtsi @@ -1115,6 +1115,8 @@ power-domains = <&sysc R8A774A1_PD_ALWAYS_ON>; resets = <&cpg 812>; phy-mode = "rgmii"; + renesas,rxc-delay-ps = <0>; + renesas,txc-delay-ps = <0>; iommus = <&ipmmu_ds0 16>; #address-cells = <1>; #size-cells = <0>; diff --git a/arch/arm64/boot/dts/renesas/r8a774b1.dtsi b/arch/arm64/boot/dts/renesas/r8a774b1.dtsi index b221f2575e6328f9..3e50541750e93f88 100644 --- a/arch/arm64/boot/dts/renesas/r8a774b1.dtsi +++ b/arch/arm64/boot/dts/renesas/r8a774b1.dtsi @@ -989,6 +989,8 @@ power-domains = <&sysc R8A774B1_PD_ALWAYS_ON>; resets = <&cpg 812>; phy-mode = "rgmii"; + renesas,rxc-delay-ps = <0>; + renesas,txc-delay-ps = <0>; iommus = <&ipmmu_ds0 16>; #address-cells = <1>; #size-cells = <0>; diff --git a/arch/arm64/boot/dts/renesas/r8a774c0.dtsi b/arch/arm64/boot/dts/renesas/r8a774c0.dtsi index 5c72a7efbb035d02..a478450090f20e0b 100644 --- a/arch/arm64/boot/dts/renesas/r8a774c0.dtsi +++ b/arch/arm64/boot/dts/renesas/r8a774c0.dtsi @@ -960,6 +960,7 @@ power-domains = <&sysc R8A774C0_PD_ALWAYS_ON>; resets = <&cpg 812>; phy-mode = "rgmii"; + renesas,rxc-delay-ps = <0>; iommus = <&ipmmu_ds0 16>; #address-cells = <1>; #size-cells = <0>;
Some EtherAVB variants support internal clock delay configuration, which can add larger delays than the delays that are typically supported by the PHY (using an "rgmii-*id" PHY mode, and/or "[rt]xc-skew-ps" properties). Historically, the EtherAVB driver configured these delays based on the "rgmii-*id" PHY mode. This was wrong, as these are meant solely for the PHY, not for the MAC. Hence properties were introduced for explicit configuration of these delays. Convert the RZ/G2 DTS files from the old to the new scheme: - Add default "renesas,rxc-delay-ps" and "renesas,txc-delay-ps" properties to the SoC .dtsi files, to be overridden by board files where needed, - Convert board files from "rgmii-*id" PHY modes to "rgmii", adding the appropriate "renesas,rxc-delay-ps" and/or "renesas,txc-delay-ps" overrides. Notes: - RZ/G2E does not support TX internal delay handling. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> --- This depends on "[PATCH/RFC 3/5] ravb: Add support for explicit internal clock delay configuration" and must not be applied before that dependency has hit upstream. --- arch/arm64/boot/dts/renesas/hihope-rzg2-ex.dtsi | 2 +- arch/arm64/boot/dts/renesas/r8a774a1.dtsi | 2 ++ arch/arm64/boot/dts/renesas/r8a774b1.dtsi | 2 ++ arch/arm64/boot/dts/renesas/r8a774c0.dtsi | 1 + 4 files changed, 6 insertions(+), 1 deletion(-)