On Wed, 22 Sep 2021 09:07:32 +0200, Michal Simek wrote:

There are couple of revisions of SOMs (k26) and associated carrier cards
(kv260).
SOM itself has two major versions:
sm-k26 - SOM with EMMC
smk-k26 - SOM without EMMC used on starter kit with preprogrammed firmware
in QSPI.

SOMs are describing only devices available on the SOM or connections which
are described in specification (for example UART, fwuen).

When SOM boots out of QSPI it uses limited number of peripherals defined by
the specification and present in sm(k)-k26 dtses.
Then a carrier card (CC) detection is happening and DT overlay is applied
to brings new functionality. That's why DT overlays are used. The name is
composed together with SOM name and CC name that's why DT overlays with
these names are generated to make sure they can be used together.

Signed-off-by: Michal Simek <redacted>
---

Changes in v5:
- Extend commit message.

Changes in v4:
- Remove ina260 and usb5744 nodes
- Remove compatible string from overlays

Changes in v3:
- Fix led node name
- Fix compatible string for xlnx,zynqmp-sk-kv260-revA/Y/Z
- Fix headers alignment
- Move USB3 PHY properties from DWC3 node to USB node - reported by Manish
  Narani
- Change dtb names generated with dtbo
- Fix emmc comment style

Changes in v2:
- Use sugar syntax - reported by Geert
- Update copyright years
- Fix SD3.0 comment alignment
- Remove one newline from Makefile

https://www.xilinx.com/products/som/kria.html
Based on
https://lore.kernel.org/r/cover.1628244703.git.michal.simek@xilinx.com (local)

---
 .../devicetree/bindings/arm/xilinx.yaml       |  16 +
 arch/arm64/boot/dts/xilinx/Makefile           |  13 +
 .../boot/dts/xilinx/zynqmp-sck-kv-g-revA.dts  | 315 ++++++++++++++++++
 .../boot/dts/xilinx/zynqmp-sck-kv-g-revB.dts  | 298 +++++++++++++++++
 .../boot/dts/xilinx/zynqmp-sm-k26-revA.dts    | 289 ++++++++++++++++
 .../boot/dts/xilinx/zynqmp-smk-k26-revA.dts   |  21 ++
 6 files changed, 952 insertions(+)
 create mode 100644 arch/arm64/boot/dts/xilinx/zynqmp-sck-kv-g-revA.dts
 create mode 100644 arch/arm64/boot/dts/xilinx/zynqmp-sck-kv-g-revB.dts
 create mode 100644 arch/arm64/boot/dts/xilinx/zynqmp-sm-k26-revA.dts
 create mode 100644 arch/arm64/boot/dts/xilinx/zynqmp-smk-k26-revA.dts

Reviewed-by: Rob Herring <robh@kernel.org>