94ceaa2632
This change adds bindings for the number of multicast hash bins and perfect filter entries supported by the Synopsys EMAC. The Synopsys EMAC core is configurable at device creation time, and can be configured for a different number of multicast hash bins and a different number of perfect filter entries. The device does not provide a way to query these parameters, therefore parameters are required. The Altera Cyclone V SOC has support for 256 multicast hash bins and 128 perfect filter entries, and is different than what's currently provided in the stmmac driver. Signed-off-by: Vince Bridgers <vbridgers2013@gmail.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
59 lines
2.4 KiB
Plaintext
59 lines
2.4 KiB
Plaintext
* STMicroelectronics 10/100/1000 Ethernet driver (GMAC)
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Required properties:
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- compatible: Should be "snps,dwmac-<ip_version>" "snps,dwmac"
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For backwards compatibility: "st,spear600-gmac" is also supported.
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- reg: Address and length of the register set for the device
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- interrupt-parent: Should be the phandle for the interrupt controller
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that services interrupts for this device
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- interrupts: Should contain the STMMAC interrupts
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- interrupt-names: Should contain the interrupt names "macirq"
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"eth_wake_irq" if this interrupt is supported in the "interrupts"
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property
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- phy-mode: See ethernet.txt file in the same directory.
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- snps,reset-gpio gpio number for phy reset.
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- snps,reset-active-low boolean flag to indicate if phy reset is active low.
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- snps,reset-delays-us is triplet of delays
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The 1st cell is reset pre-delay in micro seconds.
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The 2nd cell is reset pulse in micro seconds.
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The 3rd cell is reset post-delay in micro seconds.
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- snps,pbl Programmable Burst Length
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- snps,fixed-burst Program the DMA to use the fixed burst mode
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- snps,mixed-burst Program the DMA to use the mixed burst mode
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- snps,force_thresh_dma_mode Force DMA to use the threshold mode for
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both tx and rx
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- snps,force_sf_dma_mode Force DMA to use the Store and Forward
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mode for both tx and rx. This flag is
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ignored if force_thresh_dma_mode is set.
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- snps,multicast-filter-bins: Number of multicast filter hash bins
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supported by this device instance
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- snps,perfect-filter-entries: Number of perfect filter entries supported
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by this device instance
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Optional properties:
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- resets: Should contain a phandle to the STMMAC reset signal, if any
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- reset-names: Should contain the reset signal name "stmmaceth", if a
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reset phandle is given
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- max-frame-size: See ethernet.txt file in the same directory
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- clocks: If present, the first clock should be the GMAC main clock,
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further clocks may be specified in derived bindings.
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- clock-names: One name for each entry in the clocks property, the
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first one should be "stmmaceth".
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Examples:
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gmac0: ethernet@e0800000 {
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compatible = "st,spear600-gmac";
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reg = <0xe0800000 0x8000>;
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interrupt-parent = <&vic1>;
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interrupts = <24 23>;
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interrupt-names = "macirq", "eth_wake_irq";
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mac-address = [000000000000]; /* Filled in by U-Boot */
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max-frame-size = <3800>;
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phy-mode = "gmii";
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snps,multicast-filter-bins = <256>;
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snps,perfect-filter-entries = <128>;
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clocks = <&clock>;
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clock-names = "stmmaceth">;
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};
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