From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vince Bridgers Subject: [PATCH net-next v2 1/2] dts: Add a binding for Synopsys emac max-frame-size Date: Tue, 14 Jan 2014 08:40:08 -0600 Message-ID: <1389710409-14106-2-git-send-email-vbridgers2013@gmail.com> References: <1389710409-14106-1-git-send-email-vbridgers2013@gmail.com> Cc: peppe.cavallaro@st.com, robh+dt@kernel.org, pawel.moll@arm.com, mark.rutland@arm.com, ijc+devicetree@hellion.org.uk, galak@codeaurora.org, dinguyen@altera.com, rayagond@vayavyalabs.com, vbridgers2013@gmail.com To: devicetree@vger.kernel.org, netdev@vger.kernel.org Return-path: Received: from mail-pa0-f49.google.com ([209.85.220.49]:56618 "EHLO mail-pa0-f49.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751762AbaANOpQ (ORCPT ); Tue, 14 Jan 2014 09:45:16 -0500 In-Reply-To: <1389710409-14106-1-git-send-email-vbridgers2013@gmail.com> Sender: netdev-owner@vger.kernel.org List-ID: This change adds a parameter for the Synopsys 10/100/1000 stmmac Ethernet driver to configure the maximum frame size supported by the EMAC driver. 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 --- 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..26a0ba9 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-frame-size: Maximum frame size 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-frame-size = <3800>; phy-mode = "gmii"; }; -- 1.7.9.5