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Message-ID: <20230214103611.3599624-1-sarath.babu.naidu.gaddam@amd.com>
Date: Tue, 14 Feb 2023 16:06:11 +0530
From: Sarath Babu Naidu Gaddam <sarath.babu.naidu.gaddam@....com>
To: <davem@...emloft.net>, <edumazet@...gle.com>, <kuba@...nel.org>,
<pabeni@...hat.com>, <robh+dt@...nel.org>,
<krzysztof.kozlowski+dt@...aro.org>
CC: <michal.simek@...inx.com>, <radhey.shyam.pandey@...inx.com>,
<netdev@...r.kernel.org>, <devicetree@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>,
<linux-kernel@...r.kernel.org>, <anirudha.sarangi@....com>,
<harini.katakam@....com>, <sarath.babu.naidu.gaddam@....com>,
<git@....com>
Subject: [PATCH net-next V4] dt-bindings: net: xlnx,axi-ethernet: convert bindings document to yaml
From: Radhey Shyam Pandey <radhey.shyam.pandey@...inx.com>
Convert the bindings document for Xilinx AXI Ethernet Subsystem
from txt to yaml. No changes to existing binding description.
Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@...inx.com>
Signed-off-by: Sarath Babu Naidu Gaddam <sarath.babu.naidu.gaddam@....com>
---
Changes in V4:
1)Changed the interrupts property and add allOf:if:then for it.
Changes in V3:
1) Moved RFC to PATCH.
2) Addressed below review comments
a) Indentation.
b) maxItems:3 does not match your description.
c) Filename matching compatibles.
Changes in V2:
1) remove .txt and change the name of file to xlnx,axiethernet.yaml.
2) Fix DT check warning('device_type' does not match any of the regexes:
'pinctrl-[0-9]+' From schema: Documentation/devicetree/bindings/net
/xilinx_axienet.yaml).
---
.../bindings/net/xlnx,axi-ethernet.yaml | 166 ++++++++++++++++++
MAINTAINERS | 1 +
2 files changed, 167 insertions(+)
create mode 100644 Documentation/devicetree/bindings/net/xlnx,axi-ethernet.yaml
diff --git a/Documentation/devicetree/bindings/net/xlnx,axi-ethernet.yaml b/Documentation/devicetree/bindings/net/xlnx,axi-ethernet.yaml
new file mode 100644
index 000000000000..d2d276d4858f
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/xlnx,axi-ethernet.yaml
@@ -0,0 +1,166 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/xlnx,axi-ethernet.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: AXI 1G/2.5G Ethernet Subsystem
+
+description: |
+ Also called AXI 1G/2.5G Ethernet Subsystem, the xilinx axi ethernet IP core
+ provides connectivity to an external ethernet PHY supporting different
+ interfaces: MII, GMII, RGMII, SGMII, 1000BaseX. It also includes two
+ segments of memory for buffering TX and RX, as well as the capability of
+ offloading TX/RX checksum calculation off the processor.
+
+ Management configuration is done through the AXI interface, while payload is
+ sent and received through means of an AXI DMA controller. This driver
+ includes the DMA driver code, so this driver is incompatible with AXI DMA
+ driver.
+
+maintainers:
+ - Radhey Shyam Pandey <radhey.shyam.pandey@...inx.com>
+
+properties:
+ compatible:
+ enum:
+ - xlnx,axi-ethernet-1.00.a
+ - xlnx,axi-ethernet-1.01.a
+ - xlnx,axi-ethernet-2.01.a
+
+ reg:
+ description:
+ Address and length of the IO space, as well as the address
+ and length of the AXI DMA controller IO space, unless
+ axistream-connected is specified, in which case the reg
+ attribute of the node referenced by it is used.
+ maxItems: 2
+
+ interrupts:
+ items:
+ - description: Ethernet core interrupt
+ - description: Tx DMA interrupt
+ - description: Rx DMA interrupt
+ description:
+ Ethernet core interrupt is optional. If axistream-connected property is
+ present DMA node should contains TX/RX DMA interrupts else DMA interrupt
+ resources are mentioned on ethernet node.
+ minItems: 1
+
+ phy-handle: true
+
+ xlnx,rxmem:
+ description:
+ Set to allocated memory buffer for Rx/Tx in the hardware.
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ phy-mode: true
+
+ xlnx,phy-type:
+ description:
+ Do not use, but still accepted in preference to phy-mode.
+ deprecated: true
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ xlnx,txcsum:
+ description:
+ TX checksum offload. 0 or empty for disabling TX checksum offload,
+ 1 to enable partial TX checksum offload and 2 to enable full TX
+ checksum offload.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [0, 1, 2]
+
+ xlnx,rxcsum:
+ description:
+ RX checksum offload. 0 or empty for disabling RX checksum offload,
+ 1 to enable partial RX checksum offload and 2 to enable full RX
+ checksum offload.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [0, 1, 2]
+
+ xlnx,switch-x-sgmii:
+ type: boolean
+ description:
+ Indicate the Ethernet core is configured to support both 1000BaseX and
+ SGMII modes. If set, the phy-mode should be set to match the mode
+ selected on core reset (i.e. by the basex_or_sgmii core input line).
+
+ clocks:
+ items:
+ - description: Clock for AXI register slave interface.
+ - description: AXI4-Stream clock for TXD RXD TXC and RXS interfaces.
+ - description: Ethernet reference clock, used by signal delay primitives
+ and transceivers.
+ - description: MGT reference clock (used by optional internal PCS/PMA PHY)
+
+ clock-names:
+ items:
+ - const: s_axi_lite_clk
+ - const: axis_clk
+ - const: ref_clk
+ - const: mgt_clk
+
+ axistream-connected:
+ type: object
+ description: Reference to another node which contains the resources
+ for the AXI DMA controller used by this device. If this is specified,
+ the DMA-related resources from that device (DMA registers and DMA
+ TX/RX interrupts) rather than this one will be used.
+
+ mdio: true
+
+ pcs-handle:
+ description: Phandle to the internal PCS/PMA PHY in SGMII or 1000Base-X
+ modes, where "pcs-handle" should be used to point to the PCS/PMA PHY,
+ and "phy-handle" should point to an external PHY if exists.
+ $ref: /schemas/types.yaml#/definitions/phandle
+
+required:
+ - compatible
+ - interrupts
+ - reg
+ - xlnx,rxmem
+ - phy-handle
+
+allOf:
+ - if:
+ required:
+ - axistream-connected
+
+ then:
+ properties:
+ interrupts:
+ minItems: 2
+ maxItems: 3
+
+ else:
+ properties:
+ interrupts:
+ maxItems: 1
+
+additionalProperties: false
+
+examples:
+ - |
+ axi_ethernet_eth: ethernet@...00000 {
+ compatible = "xlnx,axi-ethernet-1.00.a";
+ interrupt-parent = <µblaze_0_axi_intc>;
+ interrupts = <2 0 1>;
+ clock-names = "s_axi_lite_clk", "axis_clk", "ref_clk", "mgt_clk";
+ clocks = <&axi_clk>, <&axi_clk>, <&pl_enet_ref_clk>, <&mgt_clk>;
+ phy-mode = "mii";
+ reg = <0x40c00000 0x40000>,<0x50c00000 0x40000>;
+ xlnx,rxcsum = <0x2>;
+ xlnx,rxmem = <0x800>;
+ xlnx,txcsum = <0x2>;
+ phy-handle = <&phy0>;
+
+ axi_ethernetlite_0_mdio: mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ phy0: ethernet-phy@1 {
+ device_type = "ethernet-phy";
+ reg = <1>;
+ };
+ };
+ };
diff --git a/MAINTAINERS b/MAINTAINERS
index 2cf9eb43ed8f..0bf527552dc9 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -22895,6 +22895,7 @@ F: drivers/iio/adc/xilinx-ams.c
XILINX AXI ETHERNET DRIVER
M: Radhey Shyam Pandey <radhey.shyam.pandey@...inx.com>
S: Maintained
+F: Documentation/devicetree/bindings/net/xlnx,axi-ethernet.yaml
F: drivers/net/ethernet/xilinx/xilinx_axienet*
XILINX CAN DRIVER
--
2.25.1
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