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Usually, NETC has 2 blocks of 64KB registers, integrated endpoint register block (IERB) and privileged register block (PRB). IERB is used for pre-boot initialization for all NETC devices, such as ENETC, Timer, EMIDO and so on. And PRB controls global reset and global error handling for NETC. Moreover, for the i.MX platform, there is also a NETCMIX block for link configuration, such as MII protocol, PCS protocol, etc. Signed-off-by: Wei Fang --- v2 changes: 1. Rephrase the commit message. 2. Change unevaluatedProperties to additionalProperties. 3. Remove the useless lables from examples. --- .../bindings/net/nxp,netc-blk-ctrl.yaml | 107 ++++++++++++++++++ 1 file changed, 107 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/nxp,netc-blk-ctrl.yaml diff --git a/Documentation/devicetree/bindings/net/nxp,netc-blk-ctrl.yaml b/Documentation/devicetree/bindings/net/nxp,netc-blk-ctrl.yaml new file mode 100644 index 000000000000..18a6ccf6bc2e --- /dev/null +++ b/Documentation/devicetree/bindings/net/nxp,netc-blk-ctrl.yaml @@ -0,0 +1,107 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/net/nxp,netc-blk-ctrl.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: NETC Blocks Control + +description: + Usually, NETC has 2 blocks of 64KB registers, integrated endpoint register + block (IERB) and privileged register block (PRB). IERB is used for pre-boot + initialization for all NETC devices, such as ENETC, Timer, EMIDO and so on. + And PRB controls global reset and global error handling for NETC. Moreover, + for the i.MX platform, there is also a NETCMIX block for link configuration, + such as MII protocol, PCS protocol, etc. + +maintainers: + - Wei Fang + - Clark Wang + +properties: + compatible: + enum: + - nxp,imx95-netc-blk-ctrl + + reg: + minItems: 2 + maxItems: 3 + + reg-names: + minItems: 2 + items: + - const: ierb + - const: prb + - const: netcmix + + "#address-cells": + const: 2 + + "#size-cells": + const: 2 + + ranges: true + + clocks: + items: + - description: NETC system clock + + clock-names: + items: + - const: ipg_clk + + power-domains: + maxItems: 1 + +patternProperties: + "^pcie@[0-9a-f]+$": + $ref: /schemas/pci/host-generic-pci.yaml# + +required: + - compatible + - "#address-cells" + - "#size-cells" + - reg + - reg-names + - ranges + +additionalProperties: false + +examples: + - | + bus { + #address-cells = <2>; + #size-cells = <2>; + + netc-blk-ctrl@4cde0000 { + compatible = "nxp,imx95-netc-blk-ctrl"; + reg = <0x0 0x4cde0000 0x0 0x10000>, + <0x0 0x4cdf0000 0x0 0x10000>, + <0x0 0x4c81000c 0x0 0x18>; + reg-names = "ierb", "prb", "netcmix"; + #address-cells = <2>; + #size-cells = <2>; + ranges; + clocks = <&scmi_clk 98>; + clock-names = "ipg_clk"; + power-domains = <&scmi_devpd 18>; + + pcie@4cb00000 { + compatible = "pci-host-ecam-generic"; + reg = <0x0 0x4cb00000 0x0 0x100000>; + #address-cells = <3>; + #size-cells = <2>; + device_type = "pci"; + bus-range = <0x1 0x1>; + ranges = <0x82000000 0x0 0x4cce0000 0x0 0x4cce0000 0x0 0x20000 + 0xc2000000 0x0 0x4cd10000 0x0 0x4cd10000 0x0 0x10000>; + + mdio@0,0 { + compatible = "pci1131,ee00"; + reg = <0x010000 0 0 0 0>; + #address-cells = <1>; + #size-cells = <0>; + }; + }; + }; + };