tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1* Cadence MACB/GEM Ethernet controller
2
3Required properties:
4- compatible: Should be "cdns,[<chip>-]{macb|gem}"
5 Use "cdns,at91rm9200-emac" Atmel at91rm9200 SoC.
6 Use "cdns,at91sam9260-macb" for Atmel at91sam9 SoCs or the 10/100Mbit IP
7 available on sama5d3 SoCs.
8 Use "cdns,np4-macb" for NP4 SoC devices.
9 Use "cdns,at32ap7000-macb" for other 10/100 usage or use the generic form: "cdns,macb".
10 Use "cdns,pc302-gem" for Picochip picoXcell pc302 and later devices based on
11 the Cadence GEM, or the generic form: "cdns,gem".
12 Use "atmel,sama5d2-gem" for the GEM IP (10/100) available on Atmel sama5d2 SoCs.
13 Use "atmel,sama5d3-gem" for the Gigabit IP available on Atmel sama5d3 SoCs.
14 Use "atmel,sama5d4-gem" for the GEM IP (10/100) available on Atmel sama5d4 SoCs.
15 Use "cdns,zynq-gem" Xilinx Zynq-7xxx SoC.
16 Use "cdns,zynqmp-gem" for Zynq Ultrascale+ MPSoC.
17 Or the generic form: "cdns,emac".
18- reg: Address and length of the register set for the device
19- interrupts: Should contain macb interrupt
20- phy-mode: See ethernet.txt file in the same directory.
21- clock-names: Tuple listing input clock names.
22 Required elements: 'pclk', 'hclk'
23 Optional elements: 'tx_clk'
24 Optional elements: 'rx_clk' applies to cdns,zynqmp-gem
25 Optional elements: 'tsu_clk'
26- clocks: Phandles to input clocks.
27
28Optional properties for PHY child node:
29- reset-gpios : Should specify the gpio for phy reset
30- magic-packet : If present, indicates that the hardware supports waking
31 up via magic packet.
32- phy-handle : see ethernet.txt file in the same directory
33
34Examples:
35
36 macb0: ethernet@fffc4000 {
37 compatible = "cdns,at32ap7000-macb";
38 reg = <0xfffc4000 0x4000>;
39 interrupts = <21>;
40 phy-mode = "rmii";
41 local-mac-address = [3a 0e 03 04 05 06];
42 clock-names = "pclk", "hclk", "tx_clk";
43 clocks = <&clkc 30>, <&clkc 30>, <&clkc 13>;
44 ethernet-phy@1 {
45 reg = <0x1>;
46 reset-gpios = <&pioE 6 1>;
47 };
48 };