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 <[email protected]> --- 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 [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
