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* STMicroelectronics 10/100/1000 Ethernet driver (GMAC)
Required properties:
- compatible: Should be "snps,dwmac-<ip_version>" "snps,dwmac"
For backwards compatibility: "st,spear600-gmac" is also supported.
- 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 STMMAC interrupts
- interrupt-names: Should contain the interrupt names "macirq"
"eth_wake_irq" if this interrupt is supported in the "interrupts"
property
- phy-mode: See ethernet.txt file in the same directory.
- snps,reset-gpio gpio number for phy reset.
- snps,reset-active-low boolean flag to indicate if phy reset is active low.
- snps,reset-delays-us is triplet of delays
The 1st cell is reset pre-delay in micro seconds.
The 2nd cell is reset pulse in micro seconds.
The 3rd cell is reset post-delay in micro seconds.
- snps,pbl Programmable Burst Length
- snps,fixed-burst Program the DMA to use the fixed burst mode
- snps,mixed-burst Program the DMA to use the mixed burst mode
- snps,force_thresh_dma_mode Force DMA to use the threshold mode for
both tx and rx
- snps,force_sf_dma_mode Force DMA to use the Store and Forward
mode for both tx and rx. This flag is
ignored if force_thresh_dma_mode is set.
- snps,multicast-filter-bins: Number of multicast filter hash bins
supported by this device instance
- snps,perfect-filter-entries: Number of perfect filter entries supported
by this device instance
Optional properties:
- resets: Should contain a phandle to the STMMAC reset signal, if any
- reset-names: Should contain the reset signal name "stmmaceth", if a
reset phandle is given
- max-frame-size: See ethernet.txt file in the same directory
- clocks: If present, the first clock should be the GMAC main clock
The optional second clock should be peripheral's register interface clock.
The third optional clock should be the ptp reference clock.
Further clocks may be specified in derived bindings.
- clock-names: One name for each entry in the clocks property.
The first one should be "stmmaceth".
The optional second one should be "pclk".
The optional third one should be "clk_ptp_ref".
- snps,burst_len: The AXI burst lenth value of the AXI BUS MODE register.
- tx-fifo-depth: See ethernet.txt file in the same directory
- rx-fifo-depth: See ethernet.txt file in the same directory
- mdio: with compatible = "snps,dwmac-mdio", create and register mdio bus.
Examples:
gmac0: ethernet@e0800000 {
compatible = "st,spear600-gmac";
reg = <0xe0800000 0x8000>;
interrupt-parent = <&vic1>;
interrupts = <24 23>;
interrupt-names = "macirq", "eth_wake_irq";
mac-address = [000000000000]; /* Filled in by U-Boot */
max-frame-size = <3800>;
phy-mode = "gmii";
snps,multicast-filter-bins = <256>;
snps,perfect-filter-entries = <128>;
rx-fifo-depth = <16384>;
tx-fifo-depth = <16384>;
clocks = <&clock>;
clock-names = "stmmaceth";
mdio0 {
#address-cells = <1>;
#size-cells = <0>;
compatible = "snps,dwmac-mdio";
phy1: ethernet-phy@0 {
};
};
};