linux-kernel - [PATCH v3 0/3] Add device tree for ASRock Rack ALTRAD8 BMC

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Message-ID: <20251204210238.40742-1-rebecca@bsdio.com>
Date: Thu,  4 Dec 2025 14:02:33 -0700
From: Rebecca Cran <rebecca@...io.com>
To: Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Joel Stanley <joel@....id.au>,
	Andrew Jeffery <andrew@...econstruct.com.au>,
	devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-aspeed@...ts.ozlabs.org,
	linux-kernel@...r.kernel.org
Cc: Rebecca Cran <rebecca@...io.com>,
	Billy Tsai <billy_tsai@...eedtech.com>
Subject: [PATCH v3 0/3] Add device tree for ASRock Rack ALTRAD8 BMC

Apologies for the long delay between v2 and v3 patches.

cc Billy Tsai for the move of ast2500 pwm-tacho docs from
aspeed-pwm-tacho.txt to aspeed,g5-pwm-tacho.yaml.

The ASRock Rack ALTRAD8 BMC is an Aspeed AST2500-based BMC for the
ALTRAD8UD-1L2T and ALTRAD8UD2-1L2Q boards with an Ampere Altra
processor. The BMC runs OpenBMC.

These patches add a device tree and binding for the BMC.

**Changes between v2 and v3**

- Removed system fault and enclosure identify LEDs; added heartbeat.
- Removed the code partition from the BIOS/UEFI flash.
- Renoved bus-frequency from i2c nodes.
- Renamed hardware-monitor to temperature-sensor.
- Fixed indentation of nct7802 subnodes.
- Swapped eth0_macaddress and eth1_macaddress.
- Removed pca9557 subnodes.
- Reworked GPIO names to be more consistent.
- Moved documentation of aspeed-pwm-tacho from txt to yaml file.

**Testing**

Ran `make ARCH=arm CHECK_DTBS=y aspeed/aspeed-bmc-asrock-altrad8.dtb` and
verified the messages about the aspeed,pwm-tacho device are no longer present.
The remaining messages are:

arch/arm/boot/dts/aspeed/aspeed-bmc-asrock-altrad8.dtb: /ahb/apb/lpc@...89000/lhc@a0: failed to match any schema with compatible: ['aspeed,ast2500-lhc']
arch/arm/boot/dts/aspeed/aspeed-bmc-asrock-altrad8.dtb: /ahb/apb/lpc@...89000/ibt@140: failed to match any schema with compatible: ['aspeed,ast2500-ibt-bmc']

Rebecca Cran (3):
  dt-bindings: arm: aspeed: add ASRock Rack ALTRAD8 board
  ARM: dts: aspeed: add device tree for ASRock Rack ALTRAD8 BMC
  dt-bindings: hwmon: (aspeed,g5-pwm-tacho) Move info from txt to yaml

 Documentation/devicetree/bindings/arm/aspeed/aspeed.yaml      |   1 +
 Documentation/devicetree/bindings/hwmon/aspeed,pwm-tacho.yaml |  91 +++
 Documentation/devicetree/bindings/hwmon/aspeed-pwm-tacho.txt  |  73 ---
 arch/arm/boot/dts/aspeed/Makefile                             |   1 +
 arch/arm/boot/dts/aspeed/aspeed-bmc-asrock-altrad8.dts        | 612 ++++++++++++++++++++
 5 files changed, 705 insertions(+), 73 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/hwmon/aspeed,pwm-tacho.yaml
 delete mode 100644 Documentation/devicetree/bindings/hwmon/aspeed-pwm-tacho.txt
 create mode 100644 arch/arm/boot/dts/aspeed/aspeed-bmc-asrock-altrad8.dts

-- 
2.47.3