linux-kernel - Re: [PATCH v2 11/12] dt-bindings: arm: Document Broadcom SoCs 'secondary-boot-reg'

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Message-ID: <20200205074908.kwtqadfcwo2mtefk@gilmour.lan>
Date:   Wed, 5 Feb 2020 08:49:08 +0100
From:   Maxime Ripard <maxime@...no.tech>
To:     Florian Fainelli <f.fainelli@...il.com>
Cc:     linux-arm-kernel@...ts.infradead.org,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Ray Jui <rjui@...adcom.com>,
        Scott Branden <sbranden@...adcom.com>,
        "maintainer:BROADCOM IPROC ARM ARCHITECTURE" 
        <bcm-kernel-feedback-list@...adcom.com>,
        Nicolas Saenz Julienne <nsaenzjulienne@...e.de>,
        Sugaya Taichi <sugaya.taichi@...ionext.com>,
        Andrew Jeffery <andrew@...id.au>,
        Arnd Bergmann <arnd@...db.de>, Joel Stanley <joel@....id.au>,
        Vinod Koul <vkoul@...nel.org>,
        "james.tai" <james.tai@...ltek.com>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>,
        "moderated list:BROADCOM BCM2711/BCM2835 ARM ARCHITECTURE" 
        <linux-rpi-kernel@...ts.infradead.org>
Subject: Re: [PATCH v2 11/12] dt-bindings: arm: Document Broadcom SoCs
 'secondary-boot-reg'

On Tue, Feb 04, 2020 at 03:55:51PM -0800, Florian Fainelli wrote:
> diff --git a/Documentation/devicetree/bindings/arm/cpus.yaml b/Documentation/devicetree/bindings/arm/cpus.yaml
> index c23c24ff7575..d7b181a44789 100644
> --- a/Documentation/devicetree/bindings/arm/cpus.yaml
> +++ b/Documentation/devicetree/bindings/arm/cpus.yaml
> @@ -272,6 +272,39 @@ properties:
>        While optional, it is the preferred way to get access to
>        the cpu-core power-domains.
>
> +  secondary-boot-reg:
> +    $ref: '/schemas/types.yaml#/definitions/uint32'
> +    description: |
> +      Required for systems that have an "enable-method" property value of
> +      "brcm,bcm11351-cpu-method", "brcm,bcm23550" or "brcm,bcm-nsp-smp".
> +
> +      This includes the following SoCs: |
> +      BCM11130, BCM11140, BCM11351, BCM28145, BCM28155, BCM21664, BCM23550
> +      BCM58522, BCM58525, BCM58535, BCM58622, BCM58623, BCM58625, BCM88312
> +
> +      The secondary-boot-reg property is a u32 value that specifies the
> +      physical address of the register used to request the ROM holding pen
> +      code release a secondary CPU. The value written to the register is
> +      formed by encoding the target CPU id into the low bits of the
> +      physical start address it should jump to.
> +
> +if:
> +  # If the enable-method property contains one of those values
> +  properties:
> +    enable-method:
> +      contains:
> +        enum:
> +          - brcm,bcm11351-cpu-method
> +          - brcm,bcm23550
> +          - brcm,bcm-nsp-smp
> +  # and if enable-method is present

Those comments were purely for the explanation, but you can keep them
I guess :)

Regardless on whether or not you keep them, for the whole series
Acked-by: Maxime Ripard <mripard@...nel.org>

Maxime

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