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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,
	Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
	netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
	davem@davemloft.net, linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 1/8] dt-bindings: net: meson-dwmac: Add the amlogic, rx-delay-ns property
Date: Tue, 12 May 2020 23:10:56 +0200	[thread overview]
Message-ID: <20200512211103.530674-2-martin.blumenstingl@googlemail.com> (raw)
In-Reply-To: <20200512211103.530674-1-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.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
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..66074314e57a 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:
+          enum:
+            - 0
+            - 2
+          default: 0
+          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 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


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  reply	other threads:[~2020-05-12 21:11 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-12 21:10 [PATCH v3 0/8] dwmac-meson8b Ethernet RX delay configuration Martin Blumenstingl
2020-05-12 21:10 ` Martin Blumenstingl [this message]
2020-05-24 21:28   ` [PATCH v3 1/8] dt-bindings: net: meson-dwmac: Add the amlogic,rx-delay-ns property Pavel Machek
2020-05-24 22:05     ` Florian Fainelli
2020-05-25  9:07       ` Pavel Machek
2020-05-25 13:57         ` Andrew Lunn
2020-05-25 20:17           ` Pavel Machek
2020-05-12 21:10 ` [PATCH v3 2/8] dt-bindings: net: dwmac-meson: Document the "timing-adjustment" clock Martin Blumenstingl
2020-05-12 21:10 ` [PATCH v3 3/8] net: stmmac: dwmac-meson8b: use FIELD_PREP instead of open-coding it Martin Blumenstingl
2020-05-12 21:10 ` [PATCH v3 4/8] net: stmmac: dwmac-meson8b: Move the documentation for the TX delay Martin Blumenstingl
2020-05-12 21:11 ` [PATCH v3 5/8] net: stmmac: dwmac-meson8b: Add the PRG_ETH0_ADJ_* bits Martin Blumenstingl
2020-05-12 21:11 ` [PATCH v3 6/8] net: stmmac: dwmac-meson8b: Fetch the "timing-adjustment" clock Martin Blumenstingl
2020-05-12 21:11 ` [PATCH v3 7/8] net: stmmac: dwmac-meson8b: Make the clock enabling code re-usable Martin Blumenstingl
2020-05-12 21:11 ` [PATCH v3 8/8] net: stmmac: dwmac-meson8b: add support for the RX delay configuration Martin Blumenstingl
2020-05-13 19:23 ` [PATCH v3 0/8] dwmac-meson8b Ethernet " David Miller
2020-07-07 18:51 ` patchwork-bot+linux-amlogic

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