[PATCH net-next 03/11] dt-bindings: net: add bindings for NETC blocks control

From: Wei Fang
Date: Wed Oct 09 2024 - 06:07:51 EST


Add bindings for NXP NETC blocks control.

Signed-off-by: Wei Fang <wei.fang@xxxxxxx>
---
.../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..7d20ed1e722c
--- /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 <wei.fang@xxxxxxx>
+ - Clark Wang <xiaoning.wang@xxxxxxx>
+
+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
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ bus {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ netc_blk_ctrl: 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: 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>;
+
+ netc_emdio: mdio@0,0 {
+ compatible = "nxp,netc-emdio", "pci1131,ee00";
+ reg = <0x010000 0 0 0 0>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+ };
+ };
+ };
--
2.34.1