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Date:   Wed, 2 Feb 2022 19:14:08 +0100
From:   Sam Ravnborg <>
Cc:, David Airlie <>,
        Daniel Vetter <>,
        Rob Herring <>,
        Linus Walleij <>,
        Bartosz Golaszewski <>,
        Corey Minyard <>,
        Krzysztof Kozlowski <>,
        Miquel Raynal <>,
        Richard Weinberger <>,
        Vignesh Raghavendra <>,
        "David S. Miller" <>,
        Jakub Kicinski <>,
        Thierry Reding <>,
        Uwe Kleine-K├Ânig 
        <>, Lee Jones <>,
        Greg Kroah-Hartman <>,
        Mark Brown <>,
        "Rafael J. Wysocki" <>,
        Daniel Lezcano <>,
        Amit Kucheria <>,
        Zhang Rui <>,
        Thomas Gleixner <>,
        Wim Van Sebroeck <>,
        Guenter Roeck <>,
        Russell King <>,
        Arnd Bergmann <>, Olof Johansson <>,, Shawn Guo <>,
        Stanislav Jakubek <>,
        Hao Fang <>,
        "Russell King (Oracle)" <>,
        Mark Rutland <>,
        Marc Zyngier <>,
        Ard Biesheuvel <>,
        Anshuman Khandual <>,
        Wang Kefeng <>,
        Lukas Bulwahn <>,
        Masahiro Yamada <>,,,,,,,,,,,,,,,

Hi Nick,

good to see all this stuff coming mainline,

On Wed, Feb 02, 2022 at 10:52:50AM -0600, wrote:
> From: Nick Hawkins <>
> GXP is the name of the HPE SoC.
> This SoC is used to implement BMC features of HPE servers
> (all ProLiant, Synergy, and many Apollo, and Superdome machines)
> It does support many features including:
> 	ARMv7 architecture, and it is based on a Cortex A9 core
> 	Use an AXI bus to which
> 		a memory controller is attached, as well as
>                  multiple SPI interfaces to connect boot flash,
>                  and ROM flash, a 10/100/1000 Mac engine which
>                  supports SGMII (2 ports) and RMII
> 		Multiple I2C engines to drive connectivity with a host infrastructure
> 		A video engine which support VGA and DP, as well as
>                  an hardware video encoder
> 		Multiple PCIe ports
> 		A PECI interface, and LPC eSPI
> 		Multiple UART for debug purpose, and Virtual UART for host connectivity
> 		A GPIO engine
> This Patch Includes:
> 	Documentation for device tree bindings
> 	Device Tree Bindings
> 	GXP Timer Support
> 	GXP Architecture Support
> Signed-off-by: Nick Hawkins <>
> ---
>  .../bindings/display/hpe,gxp-thumbnail.txt    |  21 +
>  .../devicetree/bindings/gpio/hpe,gxp-gpio.txt |  16 +

All new bindings must be in the DT-schema format (yaml files).
This enables a lot of syntax checks and validation.

We are slowly migrating away from the .txt based bindings.

Also, for new bindings please follow the guide lines listed in

Consider including the bindings with the drivers using the bindings so
things have a more natural split.


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