1 Rockchip SoC RK3288 10/100/1000 Ethernet driver(GMAC)
3 The device node has following properties.
6 - compatible: should be "rockchip,<name>-gamc"
7 "rockchip,px30-gmac": found on PX30 SoCs
8 "rockchip,rk3128-gmac": found on RK312x SoCs
9 "rockchip,rk3228-gmac": found on RK322x SoCs
10 "rockchip,rk3288-gmac": found on RK3288 SoCs
11 "rockchip,rk3328-gmac": found on RK3328 SoCs
12 "rockchip,rk3366-gmac": found on RK3366 SoCs
13 "rockchip,rk3368-gmac": found on RK3368 SoCs
14 "rockchip,rk3399-gmac": found on RK3399 SoCs
15 "rockchip,rv1108-gmac": found on RV1108 SoCs
16 - reg: addresses and length of the register sets for the device.
17 - interrupts: Should contain the GMAC interrupts.
18 - interrupt-names: Should contain the interrupt names "macirq".
19 - rockchip,grf: phandle to the syscon grf used to control speed and mode.
20 - clocks: <&cru SCLK_MAC>: clock selector for main clock, from PLL or PHY.
21 <&cru SCLK_MAC_PLL>: PLL clock for SCLK_MAC
22 <&cru SCLK_MAC_RX>: clock gate for RX
23 <&cru SCLK_MAC_TX>: clock gate for TX
24 <&cru SCLK_MACREF>: clock gate for RMII referce clock
25 <&cru SCLK_MACREF_OUT> clock gate for RMII reference clock output
26 <&cru ACLK_GMAC>: AXI clock gate for GMAC
27 <&cru PCLK_GMAC>: APB clock gate for GMAC
28 - clock-names: One name for each entry in the clocks property.
29 - phy-mode: See ethernet.txt file in the same directory.
30 - pinctrl-names: Names corresponding to the numbered pinctrl states.
31 - pinctrl-0: pin-control mode. can be <&rgmii_pins> or <&rmii_pins>.
32 - clock_in_out: For RGMII, it must be "input", means main clock(125MHz)
33 is not sourced from SoC's PLL, but input from PHY; For RMII, "input" means
34 PHY provides the reference clock(50MHz), "output" means GMAC provides the
36 - snps,reset-gpio gpio number for phy reset.
37 - snps,reset-active-low boolean flag to indicate if phy reset is active low.
38 - assigned-clocks: main clock, should be <&cru SCLK_MAC>;
39 - assigned-clock-parents = parent of main clock.
40 can be <&ext_gmac> or <&cru SCLK_MAC_PLL>.
43 - tx_delay: Delay value for TXD timing. Range value is 0~0x7F, 0x30 as default.
44 - rx_delay: Delay value for RXD timing. Range value is 0~0x7F, 0x10 as default.
45 - phy-supply: phandle to a regulator if the PHY needs one
49 gmac: ethernet@ff290000 {
50 compatible = "rockchip,rk3288-gmac";
51 reg = <0xff290000 0x10000>;
52 interrupts = <GIC_SPI 27 IRQ_TYPE_LEVEL_HIGH>;
53 interrupt-names = "macirq";
54 rockchip,grf = <&grf>;
55 clocks = <&cru SCLK_MAC>,
56 <&cru SCLK_MAC_RX>, <&cru SCLK_MAC_TX>,
57 <&cru SCLK_MACREF>, <&cru SCLK_MACREF_OUT>,
58 <&cru ACLK_GMAC>, <&cru PCLK_GMAC>;
59 clock-names = "stmmaceth",
60 "mac_clk_rx", "mac_clk_tx",
61 "clk_mac_ref", "clk_mac_refout",
62 "aclk_mac", "pclk_mac";
64 pinctrl-names = "default";
65 pinctrl-0 = <&rgmii_pins /*&rmii_pins*/>;
67 clock_in_out = "input";
68 snps,reset-gpio = <&gpio4 7 0>;
69 snps,reset-active-low;
71 assigned-clocks = <&cru SCLK_MAC>;
72 assigned-clock-parents = <&ext_gmac>;