linux-kernel - [PATCH 0/2] arm64: dts: amlogic: add libretech cottonwood support

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Date:   Mon,  2 Oct 2023 16:10:18 +0200
From:   Jerome Brunet <jbrunet@...libre.com>
To:     Neil Armstrong <neil.armstrong@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>
Cc:     Jerome Brunet <jbrunet@...libre.com>,
        Kevin Hilman <khilman@...libre.com>,
        Da Xue <da.xue@...retech.co>, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-amlogic@...ts.infradead.org
Subject: [PATCH 0/2] arm64: dts: amlogic: add libretech cottonwood support

This patchset adds support for the Libretech cottonwood board family.
The 2 boards are based on the same PCB, with an RPi B form factor.

The "Alta" board uses an a311d while the "Solitude" variant uses an s905d3.

This patchset depends on the usb support for the gl3510 [0]
Without it, there will be dt check warnings and usb may not come up properly.

Early u-boot support may be found here [1]. It will be submitted after
DT is accepted in Linux. As usual with Amlogic, u-boot must be packaged
with closed source binaries ([2] for the a311d, [3] for the s905d3)

Prebuilt bootloaders are available from libretech [4].

The devices are shipped with libretech's u-boot pre-flashed in SPI NOR.
If necessary, the boot source may be changed to MMC using the onboard
switch.

Happy hacking ...

[0]: https://lore.kernel.org/all/20231002122909.2338049-1-jbrunet@baylibre.com
[1]: https://gitlab.com/jbrunet/u-boot/-/tree/cottonwood
[2]: https://jbrunet.baylibre.com/pub/amlogic/fips/fip-collect-aml-a311d-cc-20230701.tar.gz
[3]: https://jbrunet.baylibre.com/pub/amlogic/fips/fip-collect-aml-s905d3-cc-20230820.tar.gz
[4]: https://boot.libre.computer/ci/

Jerome Brunet (2):
  dt-bindings: arm: amlogic: add libretech cottonwood support
  arm64: dts: amlogic: add libretech cottonwood support

 .../devicetree/bindings/arm/amlogic.yaml      |   2 +
 arch/arm64/boot/dts/amlogic/Makefile          |   2 +
 .../amlogic/meson-g12b-a311d-libretech-cc.dts | 133 ++++
 .../amlogic/meson-libretech-cottonwood.dtsi   | 610 ++++++++++++++++++
 .../amlogic/meson-sm1-s905d3-libretech-cc.dts |  89 +++
 5 files changed, 836 insertions(+)
 create mode 100644 arch/arm64/boot/dts/amlogic/meson-g12b-a311d-libretech-cc.dts
 create mode 100644 arch/arm64/boot/dts/amlogic/meson-libretech-cottonwood.dtsi
 create mode 100644 arch/arm64/boot/dts/amlogic/meson-sm1-s905d3-libretech-cc.dts

-- 
2.40.1