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Message-Id: <20250827081314.2295-1-weishangjuan@eswincomputing.com>
Date: Wed, 27 Aug 2025 16:13:14 +0800
From: weishangjuan@...incomputing.com
To: devicetree@...r.kernel.org,
andrew+netdev@...n.ch,
davem@...emloft.net,
edumazet@...gle.com,
kuba@...nel.org,
pabeni@...hat.com,
robh@...nel.org,
krzk+dt@...nel.org,
conor+dt@...nel.org,
linux-arm-kernel@...ts.infradead.org,
mcoquelin.stm32@...il.com,
alexandre.torgue@...s.st.com,
yong.liang.choong@...ux.intel.com,
vladimir.oltean@....com,
rmk+kernel@...linux.org.uk,
faizal.abdul.rahim@...ux.intel.com,
prabhakar.mahadev-lad.rj@...renesas.com,
inochiama@...il.com,
jan.petrous@....nxp.com,
jszhang@...nel.org,
p.zabel@...gutronix.de,
boon.khai.ng@...era.com,
0x1207@...il.com,
netdev@...r.kernel.org,
linux-kernel@...r.kernel.org,
linux-stm32@...md-mailman.stormreply.com
Cc: ningyu@...incomputing.com,
linmin@...incomputing.com,
lizhi2@...incomputing.com,
Shangjuan Wei <weishangjuan@...incomputing.com>
Subject: [PATCH v4 1/2] dt-bindings: ethernet: eswin: Document for EIC7700 SoC
From: Shangjuan Wei <weishangjuan@...incomputing.com>
Add ESWIN EIC7700 Ethernet controller, supporting clock
configuration, delay adjustment and speed adaptive functions.
Signed-off-by: Zhi Li <lizhi2@...incomputing.com>
Signed-off-by: Shangjuan Wei <weishangjuan@...incomputing.com>
---
.../bindings/net/eswin,eic7700-eth.yaml | 130 ++++++++++++++++++
1 file changed, 130 insertions(+)
create mode 100644 Documentation/devicetree/bindings/net/eswin,eic7700-eth.yaml
diff --git a/Documentation/devicetree/bindings/net/eswin,eic7700-eth.yaml b/Documentation/devicetree/bindings/net/eswin,eic7700-eth.yaml
new file mode 100644
index 000000000000..aa8bf2be9af7
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/eswin,eic7700-eth.yaml
@@ -0,0 +1,130 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/eswin,eic7700-eth.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Eswin EIC7700 SOC Eth Controller
+
+maintainers:
+ - Shuang Liang <liangshuang@...incomputing.com>
+ - Zhi Li <lizhi2@...incomputing.com>
+ - Shangjuan Wei <weishangjuan@...incomputing.com>
+
+description:
+ The eth controller registers are part of the syscrg block on
+ the EIC7700 SoC.
+
+select:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - eswin,eic7700-qos-eth
+ required:
+ - compatible
+
+allOf:
+ - $ref: snps,dwmac.yaml#
+
+properties:
+ compatible:
+ items:
+ - const: eswin,eic7700-qos-eth
+ - const: snps,dwmac-5.20
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ interrupt-names:
+ const: macirq
+
+ clocks:
+ items:
+ - description: GMAC main clock
+ - description: Tx clock
+ - description: AXI clock
+ - description: Configuration clock
+
+ clock-names:
+ contains:
+ enum:
+ - axi
+ - cfg
+ - stmmaceth
+ - tx
+
+ resets:
+ maxItems: 1
+
+ reset-names:
+ items:
+ - const: stmmaceth
+
+ rx-internal-delay-ps:
+ enum: [0, 200, 600, 1200, 1600, 1800, 2000, 2200, 2400]
+
+ tx-internal-delay-ps:
+ enum: [0, 200, 600, 1200, 1600, 1800, 2000, 2200, 2400]
+
+ eswin,hsp-sp-csr:
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ items:
+ - description: Phandle to HSP(High-Speed Peripheral) device
+ - description: Offset of phy control register for internal
+ or external clock selection
+ - description: Offset of AXI clock controller Low-Power request
+ register
+ - description: Offset of register controlling TX/RX clock delay
+ description: |
+ A phandle to hsp-sp-csr with three arguments that configure
+ HSP(High-Speed Peripheral) device. The argument one is the
+ offset of phy control register for internal or external clock
+ selection, the argument two is Offset of AXI clock controller
+ Low-Power request register, the argument three is Offset of
+ register controlling TX/RX clock delay.
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - interrupts
+ - interrupt-names
+ - phy-mode
+ - resets
+ - reset-names
+ - rx-internal-delay-ps
+ - tx-internal-delay-ps
+ - eswin,hsp-sp-csr
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ ethernet@...00000 {
+ compatible = "eswin,eic7700-qos-eth", "snps,dwmac-5.20";
+ reg = <0x50400000 0x10000>;
+ clocks = <&d0_clock 186>, <&d0_clock 171>, <&d0_clock 40>,
+ <&d0_clock 193>;
+ clock-names = "axi", "cfg", "stmmaceth", "tx";
+ interrupt-parent = <&plic>;
+ interrupts = <61>;
+ interrupt-names = "macirq";
+ phy-mode = "rgmii-id";
+ phy-handle = <&phy0>;
+ resets = <&reset 95>;
+ reset-names = "stmmaceth";
+ rx-internal-delay-ps = <200>;
+ tx-internal-delay-ps = <200>;
+ eswin,hsp-sp-csr = <&hsp_sp_csr 0x100 0x108 0x118>;
+ snps,axi-config = <&stmmac_axi_setup>;
+ snps,aal;
+ snps,fixed-burst;
+ snps,tso;
+ stmmac_axi_setup: stmmac-axi-config {
+ snps,blen = <0 0 0 0 16 8 4>;
+ snps,rd_osr_lmt = <2>;
+ snps,wr_osr_lmt = <2>;
+ };
+ };
--
2.17.1
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