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Date: Mon, 8 May 2023 16:28:51 -0500
From: dinh.nguyen@...ux.intel.com
To: linux-hwmon@...r.kernel.org
Cc: dinguyen@...nel.org, devicetree@...r.kernel.org,
robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
linux-kernel@...r.kernel.org, jdelvare@...e.com,
linux@...ck-us.net, Dinh Nguyen <dinh.nguyen@...ux.intel.com>
Subject: [PATCHv2 5/6] dt-bindings: hwmon: intel: add hardware monitor bindings for SoCFPGA
From: Dinh Nguyen <dinh.nguyen@...ux.intel.com>
Document the hardware monitoring bindings for SoCFPGA 64-bit platforms.
Signed-off-by: Dinh Nguyen <dinh.nguyen@...ux.intel.com>
---
v2: Add intel,socfpga-agilex-hwmon, intel,socfpga-n5x-hwmon and
intel,socfpga-stratix10-hwmon
Add patternProperties
---
.../bindings/hwmon/intel,socfpga-hwmon.yaml | 258 ++++++++++++++++++
1 file changed, 258 insertions(+)
create mode 100644 Documentation/devicetree/bindings/hwmon/intel,socfpga-hwmon.yaml
diff --git a/Documentation/devicetree/bindings/hwmon/intel,socfpga-hwmon.yaml b/Documentation/devicetree/bindings/hwmon/intel,socfpga-hwmon.yaml
new file mode 100644
index 000000000000..e634311a0e81
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/intel,socfpga-hwmon.yaml
@@ -0,0 +1,258 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/hwmon/intel,socfpga-hwmon.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Intel SoCFPGA Hardware monitor
+
+maintainers:
+ - Dinh Nguyen <dinh.nguyen@...ux.intel.com>
+
+description: |
+ The Intel SoCFPGA hardware monitor unit provides on-chip voltage and
+ temperature sensors. You can use these sensors to monitor external
+ voltages and on-chip operating conditions such as internal power rails
+ and on-chip junction temperatures.
+
+ The specific sensor configurations vary for each device family and
+ each device within a family does not offer all potential sensor
+ options. The information below attempts to illustrate the super set of
+ possible sensor options that are potentially available within each
+ device family, but the user should check the documentation for the
+ specific device they are using to verify which sensor options it
+ actually provides.
+
+ Stratix 10 Device Family
+
+ Stratix 10 Voltage Sensors
+
+ page 0, channel 2 = 0.8V VCC
+ page 0, channel 3 = 1.0V VCCIO
+ page 0, channel 6 = 0.9V VCCERAM
+
+ Stratix 10 Temperature Sensors
+
+ page 0, channel 0 = main die
+ page 0, channel 1 = tile bottom left
+ page 0, channel 2 = tile middle left
+ page 0, channel 3 = tile top left
+ page 0, channel 4 = tile bottom right
+ page 0, channel 5 = tile middle right
+ page 0, channel 6 = tile top right
+ page 0, channel 7 = hbm2 bottom
+ page 0, channel 8 = hbm2 top
+
+ Agilex Device Family
+
+ Agilex Voltage Sensors
+
+ page 0, channel 2 = 0.8V VCC
+ page 0, channel 3 = 1.8V VCCIO_SDM
+ page 0, channel 4 = 1.8V VCCPT
+ page 0, channel 5 = 1.2V VCCRCORE
+ page 0, channel 6 = 0.9V VCCH
+ page 0, channel 7 = 0.8V VCCL
+
+ Agilex Temperature Sensors
+
+ page 0, channel 0 = main die sdm max
+ page 0, channel 1 = main die sdm 1
+
+ page 1, channel 0 = main die corner bottom left max
+ page 1, channel 1 = main die corner bottom left 1
+ page 1, channel 2 = main die corner bottom left 2
+
+ page 2, channel 0 = main die corner top left max
+ page 2, channel 1 = main die corner top left 1
+ page 2, channel 2 = main die corner top left 2
+
+ page 3, channel 0 = main die corner bottom right max
+ page 3, channel 1 = main die corner bottom right 1
+ page 3, channel 2 = main die corner bottom right 2
+
+ page 4, channel 0 = main die corner top right max
+ page 4, channel 1 = main die corner top right 1
+ page 4, channel 2 = main die corner top right 2
+
+ page 5, channel 0 = tile die bottom left max
+ page 5, channel 1 = tile die bottom left 1
+ page 5, channel 6..2 = tile die bottom left 6..2 R-tile only
+ page 5, channel 5..2 = tile die bottom left 5..2 F-tile only
+ page 5, channel 4..2 = tile die bottom left 4..2 E-tile only
+
+ page 7, channel 0 = tile die top left max
+ page 7, channel 1 = tile die top left 1
+ page 7, channel 6..2 = tile die top left 6..2 R-tile only
+ page 7, channel 5..2 = tile die top left 5..2 F-tile only
+ page 7, channel 4..2 = tile die top left 4..2 E-tile only
+
+ page 8, channel 0 = tile die bottom right max
+ page 8, channel 1 = tile die bottom right 1
+ page 8, channel 6..2 = tile die bottom right 6..2 R-tile only
+ page 8, channel 5..2 = tile die bottom right 5..2 F-tile only
+ page 8, channel 4..2 = tile die bottom right 4..2 E-tile only
+
+ page 10, channel 0 = tile die top right max
+ page 10, channel 1 = tile die top right 1
+ page 10, channel 6..2 = tile die top right 6..2 R-tile only
+ page 10, channel 5..2 = tile die top right 5..2 F-tile only
+ page 10, channel 4..2 = tile die top right 4..2 E-tile only
+
+ N5X Device Family
+
+ N5X Voltage Sensors
+
+ page 0, channel 2 = 0.8V VDD
+ page 0, channel 3 = 0.8V VDD_SDM
+ page 0, channel 4 = 1.8V VCCADC
+ page 0, channel 5 = 1.8V VCCPD
+ page 0, channel 6 = 1.8V VCCIO_SDM
+ page 0, channel 7 = 0.8V VDD_HPS
+
+ N5X Temperature Sensors
+
+ page 0, channel 0 = main die
+
+properties:
+ compatible:
+ enum:
+ - intel,socfpga-agilex-hwmon
+ - intel,socfpga-n5x-hwmon
+ - intel,socfpga-stratix10-hwmon
+ - intel,socfpga-hwmon
+
+patternProperties:
+ "^(voltage)|input@([2-7])$":
+ type: object
+ description: Specifies the possible mappings of the voltage sensors on the
+ SoCFPGA analog to digital converter of the Secure Device Manager(SDM).
+
+ properties:
+ reg:
+ description:
+ The bit mask of 0x1 represents channel 1. The supported
+ page and channel is dependent on the SoCFPGA variant.
+ Page number greater than 0 is only supported on the
+ temperature sensors.
+ items:
+ minimum: 0
+ maximum: 1
+
+ label:
+ description: A descriptive name for this channel, i.e "0.8V VCC" or "1.8V VCCIO_SDM".
+
+ "^(temperature)|input@([10001-40002])$":
+ type: object
+ description: Specifies the possible mappings of the temperature sensors on
+ the SoCFPGA analog to digital converter of the Secure Device Manager(SDM).
+
+ properties:
+ reg:
+ description:
+ The sensor mapping address is denoted by the lower 16-bits being
+ the channel mask location that defines the channel number.
+ The upper 16-bits denotes the page number.
+ items:
+ minimum: 0
+ maximum: 1
+
+ label:
+ description: A descriptive name for this channel, i.e "Main Die SDM" or
+ "Main Die corner bottom left 1".
+
+required:
+ - compatible
+
+additionalProperties: false
+
+examples:
+ - |
+ hwmon {
+ compatible = "intel,socfpga-hwmon";
+
+ voltage {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ input@2 {
+ label = "0.8V VCC";
+ reg = <2>;
+ };
+
+ input@3 {
+ label = "1.8V VCCIO_SDM";
+ reg = <3>;
+ };
+
+ input@4 {
+ label = "1.8V VCCPT";
+ reg = <4>;
+ };
+
+ input@5 {
+ label = "1.2V VCCCRCORE";
+ reg = <5>;
+ };
+
+ input@6 {
+ label = "0.9V VCCH";
+ reg = <6>;
+ };
+
+ input@7 {
+ label = "0.8V VCCL";
+ reg = <7>;
+ };
+ };
+
+ temperature {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ input@0 {
+ label = "Main Die SDM";
+ reg = <0x0>;
+ };
+
+ input@...01 {
+ label = "Main Die corner bottom left 1";
+ reg = <0x10001>;
+ };
+
+ input@...02 {
+ label = "Main Die corner bottom left 2";
+ reg = <0x10002>;
+ };
+
+ input@...01 {
+ label = "Main Die corner top left 1";
+ reg = <0x20001>;
+ };
+
+ input@...02 {
+ label = "Main Die corner top left 2";
+ reg = <0x20002>;
+ };
+
+ input@...01 {
+ label = "Main Die corner bottom right 1";
+ reg = <0x30001>;
+ };
+
+ input@...02 {
+ label = "Main Die corner bottom right 2";
+ reg = <0x30002>;
+ };
+
+ input@...01 {
+ label = "Main Die corner top right 1 HPS";
+ reg = <0x40001>;
+ };
+
+ input@...02 {
+ label = "Main Die corner top right 2";
+ reg = <0x40002>;
+ };
+ };
+ };
--
2.40.0
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