Re: [PATCH v3 2/2] arm64: zynqmp: Add ifm ZynqMP VHIP6 EvalBoard

[Laurent Pinchart]

Hi Michal,

On Tue, Oct 13, 2026 at 10:21:26AM +0200, Michal Simek wrote:
> On 9/16/26 22:44, Marek Vasut wrote:
> > Add support for ifm ZynqMP VHIP6 EvalBoard reference design.
> > The board is populated with four ethernet ports, QSPI NOR,
> > eMMC, UART and USB host interfaces.
> > 
> > Signed-off-by: Marek Vasut <marex@xxxxxxxxxxxx>
> > ---
> > Cc: Conor Dooley <conor+dt@xxxxxxxxxx>
> > Cc: Krzysztof Kozlowski <krzk+dt@xxxxxxxxxx>
> > Cc: Michal Simek <michal.simek@xxxxxxx>
> > Cc: Rob Herring <robh@xxxxxxxxxx>
> > Cc: devicetree@xxxxxxxxxxxxxxx
> > Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
> > Cc: linux-kernel@xxxxxxxxxxxxxxx
> > ---
> > NOTE: Checkpatch complains about ethernet-phy-id2000.a240 being
> >        undocumented, but the TI DP83822I is generic C45 PHY that
> >        is valided by Documentation/devicetree/bindings/net/ethernet-phy.yaml
> > ---
> > V2: - Rename lm75 node to sensor@
> >      - Use GPIO_ACTIVE_LOW macro
> > V3: - Drop bogus clk_ignore_unused bootargs
> >      - Drop gpio line names
> > ---
> >   arch/arm64/boot/dts/xilinx/Makefile           |   1 +
> >   .../dts/xilinx/zynqmp-vhip6-evalboard.dts     | 300 ++++++++++++++++++
> >   2 files changed, 301 insertions(+)
> >   create mode 100644 arch/arm64/boot/dts/xilinx/zynqmp-vhip6-evalboard.dts
> 
> I am not able to review or take this board support further without publicly 
> available hardware documentation for the platform (board-level and relevant 
> interface details). Please share public documentation links once available, and 
> I’ll be happy to revisit the patches.

There are plenty of boards that have no public documentation. Pretty
much all phones and laptops are like that. We even have a whole
architecture that only runs on a few machines in a single person's
basement [*] :-) The kernel has never required public schematics for
boards, SoCs or IP cores.

[*] A slight exageration possibly, but that's how I heard arch/alpha/
    being described at the maintainers summit.

-- 
Regards,

Laurent Pinchart