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Message-Id: <1389397669-10929-3-git-send-email-vbridgers2013@gmail.com>
Date: Fri, 10 Jan 2014 17:47:48 -0600
From: Vince Bridgers <vbridgers2013@...il.com>
To: devicetree@...r.kernel.org, netdev@...r.kernel.org
Cc: peppe.cavallaro@...com, robh+dt@...nel.org, pawel.moll@....com,
mark.rutland@....com, ijc+devicetree@...lion.org.uk,
galak@...eaurora.org, dinguyen@...era.com,
rayagond@...avyalabs.com, vbridgers2013@...il.com
Subject: [PATCH net-next 1/2] dts: Add a binding for Synopsys emac max-mtu
This change adds a parameter for the Synopsys 10/100/1000
stmmac Ethernet driver to configure the maximum MTU supported
by the EMAC instance. Synopsys allows the FIFO sizes to
be configured when the cores are built for a particular
device, but do not provide a way for the driver to read
information from the device about the maximum MTU size
supported as limited by the device's FIFO size.
Signed-off-by: Vince Bridgers <vbridgers2013@...il.com>
---
Documentation/devicetree/bindings/net/stmmac.txt | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/Documentation/devicetree/bindings/net/stmmac.txt b/Documentation/devicetree/bindings/net/stmmac.txt
index eba0e5e..7db314e 100644
--- a/Documentation/devicetree/bindings/net/stmmac.txt
+++ b/Documentation/devicetree/bindings/net/stmmac.txt
@@ -30,6 +30,10 @@ Required properties:
Optional properties:
- mac-address: 6 bytes, mac address
+- snps,max-mtu: Maximum MTU permitted. This parameter is useful since
+ different implementations of the Synopsys MAC may have
+ different FIFO sizes depending on the selections
+ made in Synopsys Core Consultant.
Examples:
@@ -40,5 +44,6 @@ Examples:
interrupts = <24 23>;
interrupt-names = "macirq", "eth_wake_irq";
mac-address = [000000000000]; /* Filled in by U-Boot */
+ snps,max-mtu = <3800>;
phy-mode = "gmii";
};
--
1.7.9.5
--
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