From: Rob Herring <robh@kernel.org>
To: Chris Brand <chris.brand@broadcom.com>
Cc: Sebastian Reichel <sre@kernel.org>,
Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>,
David Woodhouse <dwmw2@infradead.org>,
linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org,
Florian Fainelli <f.fainelli@gmail.com>,
Ray Jui <rjui@broadcom.com>,
Scott Branden <sbranden@broadcom.com>,
Russell King <linux@arm.linux.org.uk>,
bcm-kernel-feedback-list@broadcom.com,
linux-arm-kernel@lists.infradead.org,
Pawel Moll <pawel.moll@arm.com>,
Mark Rutland <mark.rutland@arm.com>,
Ian Campbell <ijc+devicetree@hellion.org.uk>,
Kumar Gala <galak@codeaurora.org>,
devicetree@vger.kernel.org,
Raymond Ngun <raymond.ngun@broadcom.com>,
Markus Mayer <markus.mayer@broadcom.com>
Subject: Re: [PATCH 3/6] docs: Document BCM23550 bindings
Date: Mon, 9 May 2016 14:41:15 -0500 [thread overview]
Message-ID: <20160509194115.GA11594@rob-hp-laptop> (raw)
In-Reply-To: <1462481334-8943-4-git-send-email-chris.brand@broadcom.com>
On Thu, May 05, 2016 at 01:48:51PM -0700, Chris Brand wrote:
> Add binding document for Broadcom BCM23550 SoC.
>
> BCM23550 has a Cluster Dormant Control IP block that holds cores
> in an idle state. Introduce a new CPU enable method in which the CDC is
> accessed to bring the core online.
>
> Signed-off-by: Chris Brand <chris.brand@broadcom.com>
> ---
> .../bindings/arm/bcm/brcm,bcm23550-cpu-method.txt | 36 ++++++++++++++++++++++
> .../devicetree/bindings/arm/bcm/brcm,bcm23550.txt | 15 +++++++++
> Documentation/devicetree/bindings/arm/cpus.txt | 1 +
> 3 files changed, 52 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/arm/bcm/brcm,bcm23550-cpu-method.txt
> create mode 100644 Documentation/devicetree/bindings/arm/bcm/brcm,bcm23550.txt
>
> diff --git a/Documentation/devicetree/bindings/arm/bcm/brcm,bcm23550-cpu-method.txt b/Documentation/devicetree/bindings/arm/bcm/brcm,bcm23550-cpu-method.txt
> new file mode 100644
> index 000000000000..b1b16872bbca
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/arm/bcm/brcm,bcm23550-cpu-method.txt
> @@ -0,0 +1,36 @@
> +Broadcom Kona Family CPU Enable Method
> +--------------------------------------
> +This binding defines the enable method used for starting secondary
> +CPUs in the following Broadcom SoCs:
> + BCM23550
> +
> +The enable method is specified by defining the following required
> +properties in the "cpu" device tree node:
> + - enable-method = "brcm,bcm23550-cpu-method";
"-cpu-method" is a bit redundant. brcm,bc23550 is probably sufficient.
> + - secondary-boot-reg = <...>;
> +
> +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.
next prev parent reply other threads:[~2016-05-09 19:41 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-05 20:48 [PATCH 0/6] Support BCM23550 SoC Chris Brand
2016-05-05 20:48 ` [PATCH 1/6] power: Introduce Broadcom kona reset driver Chris Brand
2016-05-05 20:48 ` [PATCH 2/6] arm: bcm21664: Remove reset code Chris Brand
2016-05-05 20:48 ` [PATCH 3/6] docs: Document BCM23550 bindings Chris Brand
2016-05-09 19:41 ` Rob Herring [this message]
2016-05-09 22:27 ` Chris Brand
2016-05-05 20:48 ` [PATCH 4/6] arm: Add support for Broadcom BCM23550 SoC Chris Brand
2016-05-05 20:48 ` [PATCH 5/6] arm: BCM23550 SMP support Chris Brand
2016-05-05 20:48 ` [PATCH 6/6] arm: dt: bcm23550: Add device tree files Chris Brand
2016-05-05 21:05 ` Arnd Bergmann
2016-05-06 17:49 ` Chris Brand
2016-05-05 21:09 ` [PATCH 0/6] Support BCM23550 SoC Arnd Bergmann
2016-05-09 22:31 ` Chris Brand
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