Commit 5221d3e6 authored by Siva Reddy's avatar Siva Reddy Committed by David S. Miller
Browse files

sxgbe: Add device-tree binding support document



This patch adds binding document for SXGBE ethernet driver via device-tree.
Signed-off-by: default avatarSiva Reddy Kallam <siva.kallam@samsung.com>
Signed-off-by: default avatarByungho An <bh74.an@samsung.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 203191c3
* 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";
};
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