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Message-Id: <20210820074726.2860425-2-joel@jms.id.au>
Date: Fri, 20 Aug 2021 17:17:25 +0930
From: Joel Stanley <joel@....id.au>
To: "David S . Miller" <davem@...emloft.net>,
Jakub Kicinski <kuba@...nel.org>,
Rob Herring <robh+dt@...nel.org>
Cc: Karol Gugala <kgugala@...micro.com>,
Mateusz Holenko <mholenko@...micro.com>,
devicetree@...r.kernel.org, netdev@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH v2 1/2] dt-bindings: net: Add bindings for LiteETH
LiteETH is a small footprint and configurable Ethernet core for FPGA
based system on chips.
Signed-off-by: Joel Stanley <joel@....id.au>
---
v2:
- Fix dtschema check warning relating to registers
- Add names to the registers to make it easier to distinguish which is
what region
- Add mdio description
- Includ ethernet-controller parent description
.../bindings/net/litex,liteeth.yaml | 79 +++++++++++++++++++
1 file changed, 79 insertions(+)
create mode 100644 Documentation/devicetree/bindings/net/litex,liteeth.yaml
diff --git a/Documentation/devicetree/bindings/net/litex,liteeth.yaml b/Documentation/devicetree/bindings/net/litex,liteeth.yaml
new file mode 100644
index 000000000000..30f8f8b0b657
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/litex,liteeth.yaml
@@ -0,0 +1,79 @@
+# SPDX-License-Identifier: GPL-2.0-or-later OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/litex,liteeth.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: LiteX LiteETH ethernet device
+
+maintainers:
+ - Joel Stanley <joel@....id.au>
+
+description: |
+ LiteETH is a small footprint and configurable Ethernet core for FPGA based
+ system on chips.
+
+ The hardware source is Open Source and can be found on at
+ https://github.com/enjoy-digital/liteeth/.
+
+allOf:
+ - $ref: ethernet-controller.yaml#
+
+properties:
+ compatible:
+ const: litex,liteeth
+
+ reg:
+ minItems: 3
+ items:
+ - description: MAC registers
+ - description: MDIO registers
+ - description: Packet buffer
+
+ reg-names:
+ minItems: 3
+
+ interrupts:
+ maxItems: 1
+
+ rx-fifo-depth: true
+ tx-fifo-depth: true
+ mac-address: true
+ local-mac-address: true
+ phy-handle: true
+
+ mdio:
+ $ref: mdio.yaml#
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+additionalProperties: false
+
+examples:
+ - |
+ mac: ethernet@...0000 {
+ compatible = "litex,liteeth";
+ reg = <0x8021000 0x100>,
+ <0x8020800 0x100>,
+ <0x8030000 0x2000>;
+ reg-names = "mac", "mdio", "buffer";
+ rx-fifo-depth = <1024>;
+ tx-fifo-depth = <1024>;
+ interrupts = <0x11 0x1>;
+ phy-handle = <ð_phy>;
+
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ eth_phy: ethernet-phy@0 {
+ reg = <0>;
+ };
+ };
+ };
+...
+
+# vim: set ts=2 sw=2 sts=2 tw=80 et cc=80 ft=yaml :
--
2.32.0
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