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Message-ID: <20241025011000.244350-3-inochiama@gmail.com>
Date: Fri, 25 Oct 2024 09:09:58 +0800
From: Inochi Amaoto <inochiama@...il.com>
To: Chen Wang <unicorn_wang@...look.com>,
Andrew Lunn <andrew+netdev@...n.ch>,
"David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>,
Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
Inochi Amaoto <inochiama@...look.com>,
Alexandre Torgue <alexandre.torgue@...s.st.com>,
Jose Abreu <joabreu@...opsys.com>,
Maxime Coquelin <mcoquelin.stm32@...il.com>,
Richard Cochran <richardcochran@...il.com>,
Paul Walmsley <paul.walmsley@...ive.com>,
Palmer Dabbelt <palmer@...belt.com>,
Albert Ou <aou@...s.berkeley.edu>,
Giuseppe Cavallaro <peppe.cavallaro@...com>
Cc: Yixun Lan <dlan@...too.org>,
Longbin Li <looong.bin@...il.com>,
Inochi Amaoto <inochiama@...il.com>,
netdev@...r.kernel.org,
devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org,
linux-stm32@...md-mailman.stormreply.com,
linux-arm-kernel@...ts.infradead.org,
linux-riscv@...ts.infradead.org
Subject: [PATCH v2 2/4] dt-bindings: net: Add support for Sophgo SG2044 dwmac
The GMAC IP on SG2044 is almost a standard Synopsys DesignWare MAC
with some extra clock.
Add necessary compatible string for this device.
Signed-off-by: Inochi Amaoto <inochiama@...il.com>
---
.../devicetree/bindings/net/snps,dwmac.yaml | 1 +
.../bindings/net/sophgo,sg2044-dwmac.yaml | 124 ++++++++++++++++++
2 files changed, 125 insertions(+)
create mode 100644 Documentation/devicetree/bindings/net/sophgo,sg2044-dwmac.yaml
diff --git a/Documentation/devicetree/bindings/net/snps,dwmac.yaml b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
index 3c4007cb65f8..69f6bb36970b 100644
--- a/Documentation/devicetree/bindings/net/snps,dwmac.yaml
+++ b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
@@ -99,6 +99,7 @@ properties:
- snps,dwmac-5.30a
- snps,dwxgmac
- snps,dwxgmac-2.10
+ - sophgo,sg2044-dwmac
- starfive,jh7100-dwmac
- starfive,jh7110-dwmac
diff --git a/Documentation/devicetree/bindings/net/sophgo,sg2044-dwmac.yaml b/Documentation/devicetree/bindings/net/sophgo,sg2044-dwmac.yaml
new file mode 100644
index 000000000000..b7e4216ea45a
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/sophgo,sg2044-dwmac.yaml
@@ -0,0 +1,124 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/sophgo,sg2044-dwmac.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sophgo SG2044 DWMAC glue layer
+
+maintainers:
+ - Inochi Amaoto <inochiama@...il.com>
+
+select:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - sophgo,sg2044-dwmac
+ required:
+ - compatible
+
+properties:
+ compatible:
+ items:
+ - const: sophgo,sg2044-dwmac
+ - const: snps,dwmac-5.30a
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: GMAC main clock
+ - description: PTP clock
+ - description: TX clock
+
+ clock-names:
+ items:
+ - const: stmmaceth
+ - const: ptp_ref
+ - const: tx
+
+ interrupts:
+ maxItems: 1
+
+ interrupt-names:
+ maxItems: 1
+
+ resets:
+ maxItems: 1
+
+ reset-names:
+ const: stmmaceth
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - interrupts
+ - interrupt-names
+ - resets
+ - reset-names
+
+allOf:
+ - $ref: snps,dwmac.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ ethernet@...06000 {
+ compatible = "sophgo,sg2044-dwmac", "snps,dwmac-5.30a";
+ reg = <0x30006000 0x4000>;
+ clocks = <&clk 151>, <&clk 152>, <&clk 154>;
+ clock-names = "stmmaceth", "ptp_ref", "tx";
+ interrupt-parent = <&intc>;
+ interrupts = <296 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "macirq";
+ resets = <&rst 30>;
+ reset-names = "stmmaceth";
+ snps,multicast-filter-bins = <0>;
+ snps,perfect-filter-entries = <1>;
+ snps,aal;
+ snps,tso;
+ snps,txpbl = <32>;
+ snps,rxpbl = <32>;
+ snps,mtl-rx-config = <&gmac0_mtl_rx_setup>;
+ snps,mtl-tx-config = <&gmac0_mtl_tx_setup>;
+ snps,axi-config = <&gmac0_stmmac_axi_setup>;
+ status = "disabled";
+
+ gmac0_mtl_rx_setup: rx-queues-config {
+ snps,rx-queues-to-use = <8>;
+ snps,rx-sched-wsp;
+ queue0 {};
+ queue1 {};
+ queue2 {};
+ queue3 {};
+ queue4 {};
+ queue5 {};
+ queue6 {};
+ queue7 {};
+ };
+
+ gmac0_mtl_tx_setup: tx-queues-config {
+ snps,tx-queues-to-use = <8>;
+ queue0 {};
+ queue1 {};
+ queue2 {};
+ queue3 {};
+ queue4 {};
+ queue5 {};
+ queue6 {};
+ queue7 {};
+ };
+
+ gmac0_stmmac_axi_setup: stmmac-axi-config {
+ snps,blen = <16 8 4 0 0 0 0>;
+ snps,wr_osr_lmt = <1>;
+ snps,rd_osr_lmt = <2>;
+ };
+ };
--
2.47.0
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