(subset) [PATCH 0/7] dts: Add /firmware/#{address,size}-cells to Chromium-based DTs

Thierry Reding thierry.reding at kernel.org
Thu May 28 14:52:42 PDT 2026


From: Thierry Reding <treding at nvidia.com>


On Tue, 28 Apr 2026 13:06:52 -0700, Brian Norris wrote:
> Chromium/Depthcharge bootloaders may dynamically add a few device nodes
> to a system's DTB under a /firmware node. A typical DT looks something
> like the following:
> 
>   ## From a RK3399 Gru/Kevin Chromebook:
>   # find /sys/firmware/devicetree/base/firmware
>   /sys/firmware/devicetree/base/firmware
>   /sys/firmware/devicetree/base/firmware/coreboot
>   /sys/firmware/devicetree/base/firmware/coreboot/ram-code
>   /sys/firmware/devicetree/base/firmware/coreboot/compatible
>   /sys/firmware/devicetree/base/firmware/coreboot/board-id
>   /sys/firmware/devicetree/base/firmware/coreboot/reg
>   /sys/firmware/devicetree/base/firmware/coreboot/name
>   /sys/firmware/devicetree/base/firmware/chromeos
>   /sys/firmware/devicetree/base/firmware/chromeos/readonly-firmware-version
>   /sys/firmware/devicetree/base/firmware/chromeos/active-ec-firmware
>   /sys/firmware/devicetree/base/firmware/chromeos/firmware-version
>   /sys/firmware/devicetree/base/firmware/chromeos/nonvolatile-context-storage
>   /sys/firmware/devicetree/base/firmware/chromeos/vboot-shared-data
>   /sys/firmware/devicetree/base/firmware/chromeos/nonvolatile-context-size
>   /sys/firmware/devicetree/base/firmware/chromeos/nonvolatile-context-offset
>   /sys/firmware/devicetree/base/firmware/chromeos/hardware-id
>   /sys/firmware/devicetree/base/firmware/chromeos/compatible
>   /sys/firmware/devicetree/base/firmware/chromeos/firmware-type
>   /sys/firmware/devicetree/base/firmware/chromeos/fmap-offset
>   /sys/firmware/devicetree/base/firmware/chromeos/name
>   /sys/firmware/devicetree/base/firmware/ranges
>   /sys/firmware/devicetree/base/firmware/name
> 
> [...]

Applied, thanks!

[3/7] ARM: dts: nvidia: Add #{address,size}-cells to Chromium-based /firmware
      commit: e6d097f575338738ba597b1d836e7fe655babd7c

Best regards,
-- 
Thierry Reding <treding at nvidia.com>



More information about the Linux-rockchip mailing list