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From: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
To: robh+dt@kernel.org, andrew@lunn.ch, f.fainelli@gmail.com,
	linux-amlogic@lists.infradead.org, devicetree@vger.kernel.org
Cc: jianxin.pan@amlogic.com, davem@davemloft.net,
	netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Subject: [PATCH RFC v2 01/11] dt-bindings: net: meson-dwmac: Add the amlogic,rx-delay-ns property
Date: Wed, 29 Apr 2020 22:16:34 +0200	[thread overview]
Message-ID: <20200429201644.1144546-2-martin.blumenstingl@googlemail.com> (raw)
In-Reply-To: <20200429201644.1144546-1-martin.blumenstingl@googlemail.com>

The PRG_ETHERNET registers on Meson8b and newer SoCs can add an RX
delay. Add a property with the known supported values so it can be
configured according to the board layout.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
---
 .../bindings/net/amlogic,meson-dwmac.yaml           | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/amlogic,meson-dwmac.yaml b/Documentation/devicetree/bindings/net/amlogic,meson-dwmac.yaml
index ae91aa9d8616..8d851f59d9f2 100644
--- a/Documentation/devicetree/bindings/net/amlogic,meson-dwmac.yaml
+++ b/Documentation/devicetree/bindings/net/amlogic,meson-dwmac.yaml
@@ -67,6 +67,19 @@ allOf:
             PHY and MAC are adding a delay).
             Any configuration is ignored when the phy-mode is set to "rmii".
 
+        amlogic,rx-delay-ns:
+          $ref: /schemas/types.yaml#definitions/uint32
+          enum:
+            - 0
+            - 2
+          description:
+            The internal RGMII RX clock delay (provided by this IP block) in
+            nanoseconds. When phy-mode is set to "rgmii" then the RX delay
+            should be explicitly configured. When not configured a fallback of
+            0ns is used. When the phy-mode is set to either "rgmii-id" or
+            "rgmii-rxid" the RX clock delay is already provided by the PHY.
+            Any configuration is ignored when the phy-mode is set to "rmii".
+
 properties:
   compatible:
     additionalItems: true
-- 
2.26.2


  reply	other threads:[~2020-04-29 20:17 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-29 20:16 [PATCH RFC v2 00/11] dwmac-meson8b Ethernet RX delay configuration Martin Blumenstingl
2020-04-29 20:16 ` Martin Blumenstingl [this message]
2020-05-01 15:26   ` [PATCH RFC v2 01/11] dt-bindings: net: meson-dwmac: Add the amlogic,rx-delay-ns property Andrew Lunn
2020-05-12 14:51   ` Rob Herring
2020-04-29 20:16 ` [PATCH RFC v2 02/11] dt-bindings: net: dwmac-meson: Document the "timing-adjustment" clock Martin Blumenstingl
2020-05-01 15:27   ` Andrew Lunn
2020-05-01 21:09   ` Rob Herring
2020-05-01 21:53     ` Martin Blumenstingl
2020-05-10 22:34       ` Martin Blumenstingl
2020-04-29 20:16 ` [PATCH RFC v2 03/11] net: stmmac: dwmac-meson8b: use FIELD_PREP instead of open-coding it Martin Blumenstingl
2020-05-01 15:28   ` Andrew Lunn
2020-04-29 20:16 ` [PATCH RFC v2 04/11] net: stmmac: dwmac-meson8b: Move the documentation for the TX delay Martin Blumenstingl
2020-05-01 15:29   ` Andrew Lunn
2020-04-29 20:16 ` [PATCH RFC v2 05/11] net: stmmac: dwmac-meson8b: Add the PRG_ETH0_ADJ_* bits Martin Blumenstingl
2020-05-01 15:33   ` Andrew Lunn
2020-04-29 20:16 ` [PATCH RFC v2 06/11] net: stmmac: dwmac-meson8b: Fetch the "timing-adjustment" clock Martin Blumenstingl
2020-05-01 15:35   ` Andrew Lunn
2020-04-29 20:16 ` [PATCH RFC v2 07/11] net: stmmac: dwmac-meson8b: Make the clock enabling code re-usable Martin Blumenstingl
2020-05-01 15:37   ` Andrew Lunn
2020-04-29 20:16 ` [PATCH RFC v2 08/11] net: stmmac: dwmac-meson8b: add support for the RX delay configuration Martin Blumenstingl
2020-05-01 15:44   ` Andrew Lunn
2020-05-01 17:10     ` Martin Blumenstingl
2020-04-29 20:16 ` [PATCH DO NOT MERGE v2 09/11] arm64: dts: amlogic: Add the Ethernet "timing-adjustment" clock Martin Blumenstingl
2020-04-29 20:16 ` [PATCH DO NOT MERGE v2 10/11] ARM: dts: meson: " Martin Blumenstingl
2020-04-29 20:16 ` [PATCH DO NOT MERGE v2 11/11] ARM: dts: meson: Switch existing boards with RGMII PHY to "rgmii-id" Martin Blumenstingl
2020-04-29 21:29 ` [PATCH RFC v2 00/11] dwmac-meson8b Ethernet RX delay configuration Andrew Lunn
2020-05-01 14:49   ` Martin Blumenstingl

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