[PATCH v10 0/6] arm64: dts: nuvoton: add NPCM845 SoC and EVB support

From: IS20 Tomer Maimon

Date: Sun Oct 04 2026 - 12:12:09 EST


From: Tomer Maimon <tmaimon77@xxxxxxxxx>

This series fixes the remaining timer binding issue and adds device tree
support for peripherals on the Nuvoton NPCM845 SoC and its Evaluation
Board (EVB).

The first patch drops the undocumented timer0 clock-names property.
The second patch splits the two APB address windows into separate bus
nodes before any peripheral nodes are added.
The third patch reorders timer0 and PECI so the APB child nodes stay in
ascending unit-address order.
The fourth patch introduces peripheral nodes for Ethernet, MMC, SPI,
USB, RNG, ADC, PWM-FAN, I2C, and OP-TEE firmware in the NPCM845 SoC
device tree.
The fifth patch cleans up the pre-existing NPCM845 EVB DTS property
ordering to match strict dt-check-style expectations.
The sixth patch enables the NPCM845-EVB peripherals, adding MDIO nodes,
reserved memory, aliases, and board-specific configurations such as PHY
modes and SPI flash partitions.

The NPCM8XX device tree was tested on the NPCM845 evaluation board.

Changes since version 9:
- Split the F0000000 and FFF00000 APB address windows in a
separate patch before adding any peripheral nodes.
- Add peripheral nodes directly under their final APB bus.
- Renumber the timer/PECI ordering and peripheral patches.
- Renumber the EVB coding-style and peripheral patches.

Changes since version 8:
- Split the EVB changes into a DTS coding-style cleanup patch
for the pre-existing board file and a separate peripheral
enablement patch.
- Fix strict dt-check-style issues in the EVB DTS by reordering
properties and nodes, normalizing blank lines and continuation
alignment, and lowercasing hex literals.
- Drop the unused tip_reserved label.
- Keep patches 1-3 unchanged.
- The remaining refclk unused-label report is a false positive
because the label is referenced from the included common DTSI.

Changes since version 7:
- Move timer0 to keep APB child nodes in unit-address order.
- Add PSPI to the commit message.

Changes since version 6:
- Remove IPMI I2C device.
- Add FIX enable property.
- Keep patches 1-3 unchanged.

Changes since version 5:
- Add no-map to the tip_reserved firmware memory region.
- Drop the unsupported snps,eee-force-disable property from
gmac1.
- Rework the FIU0 boot flash layout into nested fixed-partitions
under the bmc container.
- Keep patches 1-3 unchanged.

Changes since version 4:
- Split the timer0 clock-names cleanup into a separate first
patch.
- Remove nuvoton,sysgcr from udc8 and udc9.
- Rename apb: bus@f0000000 back to apb.
- Rename spix-mode to nuvoton,spix-mode.
- Keep cooling-levels as 32-bit cells while encoding fan-tach-ch
as /bits/ 8.

Changes since version 3:
- Remove tmp100.

Changes since version 2:
- Fix DTS warning.
- Arrange node order by ascending unit address.

Changes since version 1:
- Fix commit message.
- Fix dtbs_check warnings.

Tomer Maimon (6):
arm64: dts: nuvoton: npcm845: Drop redundant timer clock-names
arm64: dts: nuvoton: npcm845: Split APB address ranges
arm64: dts: nuvoton: npcm845: Reorder timer0 and PECI nodes
arm64: dts: nuvoton: npcm845: Add peripheral nodes
arm64: dts: nuvoton: npcm845-evb: Fix DTS coding style
arm64: dts: nuvoton: npcm845-evb: Add peripheral nodes

.../dts/nuvoton/nuvoton-common-npcm8xx.dtsi | 731 +++++++++++++++++-
.../boot/dts/nuvoton/nuvoton-npcm845-evb.dts | 441 ++++++++++-
.../boot/dts/nuvoton/nuvoton-npcm845.dtsi | 6 +
3 files changed, 1155 insertions(+), 23 deletions(-)

--
2.34.1