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* [PATCH 0/5] Import optee node from u-boot device trees
@ 2026-07-10 15:31 Mathieu Dubois-Briand
  2026-07-10 15:31 ` [PATCH 1/5] arm64: dts: freescale: " Mathieu Dubois-Briand
                   ` (4 more replies)
  0 siblings, 5 replies; 7+ messages in thread
From: Mathieu Dubois-Briand @ 2026-07-10 15:31 UTC (permalink / raw)
  To: Rob Herring, Krzysztof Kozlowski, Conor Dooley, Frank Li,
	Sascha Hauer, Pengutronix Kernel Team, Fabio Estevam,
	Maxime Coquelin, Alexandre Torgue, Wei Xu, Andrew Jeffery,
	Avi Fishman, Tomer Maimon, Tali Perry, Patrick Venture,
	Nancy Yuen, Benjamin Fair
  Cc: Thomas Petazzoni, devicetree, imx, linux-arm-kernel, linux-kernel,
	linux-stm32, openbmc, Tom Rini, Peter Robinson,
	Mathieu Dubois-Briand

In a recent discussion on the U-Boot mailing list [1], it was found out
that several platforms were adding the OP-TEE device tree-node thanks to
some U-Boot specific dtsi. This was deemed as a bad solution, as this
should instead be added in the DTS files hosted in Linux sources,
particularly for platforms already using the "upstream" (Linux) device
tree.

Most i.MX8 and i.MX9 platforms are already using OF_UPSTREAM
configuration in U-Boot. Some are not, but are fairly new, so we can
expect them to use the Linux device tree once their support is a bit
more stable. So they will benefit from these changes once upstream
device trees are refreshed in U-Boot.

STM32MP157 platforms are using OF_UPSTREAM, with similar consequences.

The two other platforms are using an U-Boot specific device tree, yet
adding these nodes on the kernel side will help to reduce the
differences.

The zynqmp platform was ignored, as a similar change was previously
reverted [2]. I also ignored a few platforms without direct match
between U-Boot and Linux dts files.

Also add the OP-TEE node on the imx93 FRDM platform device tree: while
this is not part of U-Boot code today, it is the change that triggered
the U-Boot discussion.

[1]: https://lore.kernel.org/all/20260706145906.GW749385@bill-the-cat/
[2]: https://lore.kernel.org/all/20251125-revert-zynqmp-optee-v1-1-d2ce4c0fcaf6@vaisala.com/

Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
---
Mathieu Dubois-Briand (5):
      arm64: dts: freescale: Import optee node from u-boot device trees
      arm: dts: st: Import optee node from u-boot device trees
      arm64: dts: hisilicon: hi3798cv200-poplar: Import optee node from u-boot device tree
      arm64: dts: nuvoton: npcm845-evb: Import optee node from u-boot device tree
      arm64: dts: freescale: imx93-frdm: Add OP-TEE device tree node

 arch/arm/boot/dts/st/stm32mp157a-dk1.dts                | 17 +++++++++++++++++
 arch/arm/boot/dts/st/stm32mp157c-ed1.dts                | 12 ++++++++++++
 arch/arm64/boot/dts/freescale/imx8mm.dtsi               |  7 +++++++
 arch/arm64/boot/dts/freescale/imx8mn.dtsi               |  7 +++++++
 arch/arm64/boot/dts/freescale/imx8mp.dtsi               |  7 +++++++
 arch/arm64/boot/dts/freescale/imx91-11x11-evk.dts       |  7 +++++++
 arch/arm64/boot/dts/freescale/imx91-11x11-frdm.dts      |  7 +++++++
 arch/arm64/boot/dts/freescale/imx91-phyboard-segin.dts  |  7 +++++++
 arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts       |  7 +++++++
 arch/arm64/boot/dts/freescale/imx93-11x11-frdm.dts      |  7 +++++++
 arch/arm64/boot/dts/freescale/imx93-9x9-qsb.dts         |  7 +++++++
 .../arm64/boot/dts/freescale/imx93-kontron-bl-osm-s.dts |  7 +++++++
 arch/arm64/boot/dts/freescale/imx93-phyboard-segin.dts  |  7 +++++++
 .../arm64/boot/dts/freescale/imx93-var-som-symphony.dts |  7 +++++++
 arch/arm64/boot/dts/hisilicon/hi3798cv200-poplar.dts    |  7 +++++++
 arch/arm64/boot/dts/nuvoton/nuvoton-npcm845-evb.dts     |  7 +++++++
 16 files changed, 127 insertions(+)
---
base-commit: 8cdeaa50eae8dad34885515f62559ee83e7e8dda
change-id: 20260710-mathieu-uboot-dts-import-69f51bc097d7

Best regards,
-- 
Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>



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2026-07-10 15:31 [PATCH 0/5] Import optee node from u-boot device trees Mathieu Dubois-Briand
2026-07-10 15:31 ` [PATCH 1/5] arm64: dts: freescale: " Mathieu Dubois-Briand
2026-07-10 21:09   ` Frank Li
2026-07-10 15:31 ` [PATCH 2/5] arm: dts: st: " Mathieu Dubois-Briand
2026-07-10 15:31 ` [PATCH 3/5] arm64: dts: hisilicon: hi3798cv200-poplar: Import optee node from u-boot device tree Mathieu Dubois-Briand
2026-07-10 15:31 ` [PATCH 4/5] arm64: dts: nuvoton: npcm845-evb: " Mathieu Dubois-Briand
2026-07-10 15:31 ` [PATCH 5/5] arm64: dts: freescale: imx93-frdm: Add OP-TEE device tree node Mathieu Dubois-Briand

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