8fdb1a09e1
Certain PHY settings need to be configurable by UEFI depending on the platform being used. Add new device tree / ACPI properties that, if present, will override the pre-determined values currently used. Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by: David S. Miller <davem@davemloft.net>
45 lines
1.6 KiB
Plaintext
45 lines
1.6 KiB
Plaintext
* AMD 10GbE PHY driver (amd-xgbe-phy)
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Required properties:
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- compatible: Should be "amd,xgbe-phy-seattle-v1a" and
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"ethernet-phy-ieee802.3-c45"
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- reg: Address and length of the register sets for the device
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- SerDes Rx/Tx registers
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- SerDes integration registers (1/2)
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- SerDes integration registers (2/2)
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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 amd-xgbe-phy interrupt.
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Optional properties:
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- amd,speed-set: Speed capabilities of the device
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0 - 1GbE and 10GbE (default)
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1 - 2.5GbE and 10GbE
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The following optional properties are represented by an array with each
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value corresponding to a particular speed. The first array value represents
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the setting for the 1GbE speed, the second value for the 2.5GbE speed and
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the third value for the 10GbE speed. All three values are required if the
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property is used.
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- amd,serdes-blwc: Baseline wandering correction enablement
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0 - Off
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1 - On
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- amd,serdes-cdr-rate: CDR rate speed selection
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- amd,serdes-pq-skew: PQ (data sampling) skew
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- amd,serdes-tx-amp: TX amplitude boost
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Example:
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xgbe_phy@e1240800 {
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compatible = "amd,xgbe-phy-seattle-v1a", "ethernet-phy-ieee802.3-c45";
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reg = <0 0xe1240800 0 0x00400>,
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<0 0xe1250000 0 0x00060>,
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<0 0xe1250080 0 0x00004>;
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interrupt-parent = <&gic>;
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interrupts = <0 323 4>;
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amd,speed-set = <0>;
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amd,serdes-blwc = <1>, <1>, <0>;
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amd,serdes-cdr-rate = <2>, <2>, <7>;
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amd,serdes-pq-skew = <10>, <10>, <30>;
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amd,serdes-tx-amp = <15>, <15>, <10>;
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};
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