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. This patch has been tested with changes being submitted seperately for the Synopsys 10/100/1000 stmmac driver. Signed-off-by: Vince Bridgers <vbridgers2013@xxxxxxxxx> --- 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 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
