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-Rockchip SoC RK3288 10/100/1000 Ethernet driver(GMAC)
-
-The device node has following properties.
-
-Required properties:
- - compatible: should be "rockchip,<name>-gamc"
- "rockchip,px30-gmac": found on PX30 SoCs
- "rockchip,rk3128-gmac": found on RK312x SoCs
- "rockchip,rk3228-gmac": found on RK322x SoCs
- "rockchip,rk3288-gmac": found on RK3288 SoCs
- "rockchip,rk3328-gmac": found on RK3328 SoCs
- "rockchip,rk3366-gmac": found on RK3366 SoCs
- "rockchip,rk3368-gmac": found on RK3368 SoCs
- "rockchip,rk3399-gmac": found on RK3399 SoCs
- "rockchip,rv1108-gmac": found on RV1108 SoCs
- - reg: addresses and length of the register sets for the device.
- - interrupts: Should contain the GMAC interrupts.
- - interrupt-names: Should contain the interrupt names "macirq".
- - rockchip,grf: phandle to the syscon grf used to control speed and mode.
- - clocks: <&cru SCLK_MAC>: clock selector for main clock, from PLL or PHY.
- <&cru SCLK_MAC_PLL>: PLL clock for SCLK_MAC
- <&cru SCLK_MAC_RX>: clock gate for RX
- <&cru SCLK_MAC_TX>: clock gate for TX
- <&cru SCLK_MACREF>: clock gate for RMII referce clock
- <&cru SCLK_MACREF_OUT> clock gate for RMII reference clock output
- <&cru ACLK_GMAC>: AXI clock gate for GMAC
- <&cru PCLK_GMAC>: APB clock gate for GMAC
- - clock-names: One name for each entry in the clocks property.
- - phy-mode: See ethernet.txt file in the same directory.
- - pinctrl-names: Names corresponding to the numbered pinctrl states.
- - pinctrl-0: pin-control mode. can be <&rgmii_pins> or <&rmii_pins>.
- - clock_in_out: For RGMII, it must be "input", means main clock(125MHz)
- is not sourced from SoC's PLL, but input from PHY; For RMII, "input" means
- PHY provides the reference clock(50MHz), "output" means GMAC provides the
- reference clock.
- - snps,reset-gpio gpio number for phy reset.
- - snps,reset-active-low boolean flag to indicate if phy reset is active low.
- - assigned-clocks: main clock, should be <&cru SCLK_MAC>;
- - assigned-clock-parents = parent of main clock.
- can be <&ext_gmac> or <&cru SCLK_MAC_PLL>.
-
-Optional properties:
- - tx_delay: Delay value for TXD timing. Range value is 0~0x7F, 0x30 as default.
- - rx_delay: Delay value for RXD timing. Range value is 0~0x7F, 0x10 as default.
- - phy-supply: phandle to a regulator if the PHY needs one
-
-Example:
-
-gmac: ethernet@ff290000 {
- compatible = "rockchip,rk3288-gmac";
- reg = <0xff290000 0x10000>;
- interrupts = <GIC_SPI 27 IRQ_TYPE_LEVEL_HIGH>;
- interrupt-names = "macirq";
- rockchip,grf = <&grf>;
- clocks = <&cru SCLK_MAC>,
- <&cru SCLK_MAC_RX>, <&cru SCLK_MAC_TX>,
- <&cru SCLK_MACREF>, <&cru SCLK_MACREF_OUT>,
- <&cru ACLK_GMAC>, <&cru PCLK_GMAC>;
- clock-names = "stmmaceth",
- "mac_clk_rx", "mac_clk_tx",
- "clk_mac_ref", "clk_mac_refout",
- "aclk_mac", "pclk_mac";
- phy-mode = "rgmii";
- pinctrl-names = "default";
- pinctrl-0 = <&rgmii_pins /*&rmii_pins*/>;
-
- clock_in_out = "input";
- snps,reset-gpio = <&gpio4 7 0>;
- snps,reset-active-low;
-
- assigned-clocks = <&cru SCLK_MAC>;
- assigned-clock-parents = <&ext_gmac>;
- tx_delay = <0x30>;
- rx_delay = <0x10>;
-
-};