[PATCH 07/21] dt-bindings: net: x-powers: add AC200 EPHY control
From: James Hilliard <hidden>
Date: 2026-08-03 05:15:51
Also in:
linux-arm-kernel, linux-devicetree, linux-rockchip, linux-sunxi, lkml
Subsystem:
networking drivers, open firmware and flattened device tree bindings, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
The AC200 companion IC contains a Fast Ethernet PHY controlled through the parent AC200 I2C regmap. Describe its control function, including the interface mode and optional SoC SID calibration cell. The vendor sequence adds three to the calibration value modulo 16 before writing the BPS_EFFUSE field. If the SID cell is omitted, the driver can use the AC200's internal copy of the calibration eFuse. The link-PHY driver supplies its Clause 22 address when enabling the control function. Signed-off-by: James Hilliard <redacted> --- .../bindings/net/x-powers,ac200-ephy-ctl.yaml | 46 ++++++++++++++++++++++ 1 file changed, 46 insertions(+)
diff --git a/Documentation/devicetree/bindings/net/x-powers,ac200-ephy-ctl.yaml b/Documentation/devicetree/bindings/net/x-powers,ac200-ephy-ctl.yaml
new file mode 100644
index 000000000000..b3337c3aa62a
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/x-powers,ac200-ephy-ctl.yaml@@ -0,0 +1,46 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/net/x-powers,ac200-ephy-ctl.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: X-Powers AC200 Ethernet PHY control + +maintainers: + - James Hilliard <james.hilliard1@gmail.com> + +description: + The AC200 Ethernet PHY control function configures and powers the Fast + Ethernet PHY in the AC200. Its registers are accessed through the parent + AC200 I2C regmap. + +properties: + compatible: + const: x-powers,ac200-ephy-ctl + + nvmem-cells: + maxItems: 1 + description: + Optional SoC SID cell containing the Ethernet PHY calibration value + written to the AC200 BPS_EFFUSE field after adding 3 modulo 16, as + prescribed by the vendor initialization sequence. If omitted, the + driver reads the AC200's internal copy of the calibration eFuse. + + nvmem-cell-names: + const: calibration + + phy-mode: + enum: + - mii + - rmii + +required: + - compatible + - phy-mode + +dependentRequired: + nvmem-cells: [ nvmem-cell-names ] + nvmem-cell-names: [ nvmem-cells ] + +additionalProperties: false +...
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2.53.0