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linux
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 <siva.kallam@samsung.com>
Signed-off-by: Byungho An <bh74.an@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
authored by
Siva Reddy
and committed by
David S. Miller
5221d3e6
203191c3
+52
+52
Documentation/devicetree/bindings/net/samsung-sxgbe.txt
+52
Documentation/devicetree/bindings/net/samsung-sxgbe.txt
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* Samsung 10G Ethernet driver (SXGBE)
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Required properties:
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- compatible: Should be "samsung,sxgbe-v2.0a"
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- reg: Address and length of the register set for the device
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- interrupt-parent: Should be the phandle for the interrupt controller
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that services interrupts for this device
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- interrupts: Should contain the SXGBE interrupts
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These interrupts are ordered by fixed and follows variable
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trasmit DMA interrupts, receive DMA interrupts and lpi interrupt.
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index 0 - this is fixed common interrupt of SXGBE and it is always
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available.
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index 1 to 25 - 8 variable trasmit interrupts, variable 16 receive interrupts
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and 1 optional lpi interrupt.
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- phy-mode: String, operation mode of the PHY interface.
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Supported values are: "sgmii", "xgmii".
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- samsung,pbl: Integer, Programmable Burst Length.
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Supported values are 1, 2, 4, 8, 16, or 32.
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- samsung,burst-map: Integer, Program the possible bursts supported by sxgbe
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This is an interger and represents allowable DMA bursts when fixed burst.
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Allowable range is 0x01-0x3F. When this field is set fixed burst is enabled.
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When fixed length is needed for burst mode, it can be set within allowable
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range.
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Optional properties:
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- mac-address: 6 bytes, mac address
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- max-frame-size: Maximum Transfer Unit (IEEE defined MTU), rather
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than the maximum frame size.
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Example:
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aliases {
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ethernet0 = <&sxgbe0>;
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};
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sxgbe0: ethernet@1a040000 {
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compatible = "samsung,sxgbe-v2.0a";
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reg = <0 0x1a040000 0 0x10000>;
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interrupt-parent = <&gic>;
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interrupts = <0 209 4>, <0 185 4>, <0 186 4>, <0 187 4>,
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<0 188 4>, <0 189 4>, <0 190 4>, <0 191 4>,
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<0 192 4>, <0 193 4>, <0 194 4>, <0 195 4>,
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<0 196 4>, <0 197 4>, <0 198 4>, <0 199 4>,
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<0 200 4>, <0 201 4>, <0 202 4>, <0 203 4>,
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<0 204 4>, <0 205 4>, <0 206 4>, <0 207 4>,
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<0 208 4>, <0 210 4>;
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samsung,pbl = <0x08>
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samsung,burst-map = <0x20>
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mac-address = [ 00 11 22 33 44 55 ]; /* Filled in by U-Boot */
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max-frame-size = <9000>;
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phy-mode = "xgmii";
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};