From: Siva Reddy Date: Tue, 25 Mar 2014 19:10:51 +0000 (-0700) Subject: sxgbe: Add device-tree binding support document X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=5221d3e66d74e2c90cd9f94acfd957da1ab1df4d;p=openwrt%2Fstaging%2Fblogic.git sxgbe: Add device-tree binding support document This patch adds binding document for SXGBE ethernet driver via device-tree. Signed-off-by: Siva Reddy Kallam Signed-off-by: Byungho An Signed-off-by: David S. Miller --- diff --git a/Documentation/devicetree/bindings/net/samsung-sxgbe.txt b/Documentation/devicetree/bindings/net/samsung-sxgbe.txt new file mode 100644 index 000000000000..989f6c95cfd5 --- /dev/null +++ b/Documentation/devicetree/bindings/net/samsung-sxgbe.txt @@ -0,0 +1,52 @@ +* Samsung 10G Ethernet driver (SXGBE) + +Required properties: +- compatible: Should be "samsung,sxgbe-v2.0a" +- reg: Address and length of the register set for the device +- interrupt-parent: Should be the phandle for the interrupt controller + that services interrupts for this device +- interrupts: Should contain the SXGBE interrupts + These interrupts are ordered by fixed and follows variable + trasmit DMA interrupts, receive DMA interrupts and lpi interrupt. + index 0 - this is fixed common interrupt of SXGBE and it is always + available. + index 1 to 25 - 8 variable trasmit interrupts, variable 16 receive interrupts + and 1 optional lpi interrupt. +- phy-mode: String, operation mode of the PHY interface. + Supported values are: "sgmii", "xgmii". +- samsung,pbl: Integer, Programmable Burst Length. + Supported values are 1, 2, 4, 8, 16, or 32. +- samsung,burst-map: Integer, Program the possible bursts supported by sxgbe + This is an interger and represents allowable DMA bursts when fixed burst. + Allowable range is 0x01-0x3F. When this field is set fixed burst is enabled. + When fixed length is needed for burst mode, it can be set within allowable + range. + +Optional properties: +- mac-address: 6 bytes, mac address +- max-frame-size: Maximum Transfer Unit (IEEE defined MTU), rather + than the maximum frame size. + +Example: + + aliases { + ethernet0 = <&sxgbe0>; + }; + + sxgbe0: ethernet@1a040000 { + compatible = "samsung,sxgbe-v2.0a"; + reg = <0 0x1a040000 0 0x10000>; + interrupt-parent = <&gic>; + interrupts = <0 209 4>, <0 185 4>, <0 186 4>, <0 187 4>, + <0 188 4>, <0 189 4>, <0 190 4>, <0 191 4>, + <0 192 4>, <0 193 4>, <0 194 4>, <0 195 4>, + <0 196 4>, <0 197 4>, <0 198 4>, <0 199 4>, + <0 200 4>, <0 201 4>, <0 202 4>, <0 203 4>, + <0 204 4>, <0 205 4>, <0 206 4>, <0 207 4>, + <0 208 4>, <0 210 4>; + samsung,pbl = <0x08> + samsung,burst-map = <0x20> + mac-address = [ 00 11 22 33 44 55 ]; /* Filled in by U-Boot */ + max-frame-size = <9000>; + phy-mode = "xgmii"; + };