From: Rob Herring <robh@kernel.org>
To: Caesar Wang <wxt@rock-chips.com>
Cc: "Heiko Stübner" <heiko@sntech.de>,
"Jaswinder Singh" <jassisinghbrar@gmail.com>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
"Kumar Gala" <galak@codeaurora.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"Ian Campbell" <ijc+devicetree@hellion.org.uk>,
linux-rockchip@lists.infradead.org,
"Pawel Moll" <pawel.moll@arm.com>,
"Will Deacon" <will.deacon@arm.com>,
"Mark Rutland" <mark.rutland@arm.com>,
"Olof Johansson" <olof@lixom.net>,
"Catalin Marinas" <catalin.marinas@arm.com>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
frank.wang@rock-chips.com
Subject: Re: [PATCH 1/3] dt-bindings: Add document of Rockchip mailbox
Date: Tue, 6 Oct 2015 09:50:16 -0500 [thread overview]
Message-ID: <CAL_Jsq+36CqbUnccU_LKgmeswoPgr0vBzh4PLM4nOtsCAYE0SA@mail.gmail.com> (raw)
In-Reply-To: <1442228798-15191-2-git-send-email-wxt@rock-chips.com>
On Mon, Sep 14, 2015 at 6:06 AM, Caesar Wang <wxt@rock-chips.com> wrote:
> This add the necessary binding documentation for mailbox
> found on RK3368 SoC.
>
> Signed-off-by: Caesar Wang <wxt@rock-chips.com>
> ---
>
> .../bindings/mailbox/rockchip-mailbox.txt | 33 ++++++++++++++++++++++
> 1 file changed, 33 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/mailbox/rockchip-mailbox.txt
>
> diff --git a/Documentation/devicetree/bindings/mailbox/rockchip-mailbox.txt b/Documentation/devicetree/bindings/mailbox/rockchip-mailbox.txt
> new file mode 100644
> index 0000000..b9b4768
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mailbox/rockchip-mailbox.txt
> @@ -0,0 +1,33 @@
> +Rockchip mailbox
> +
> +The Rockchip mailbox is used by the Rockchip CPU cores to communicate
> +requests to MCU processor.
> +
> +Refer to ./mailbox.txt for generic information about mailbox device-tree
> +bindings.
> +
> +Required properties:
> +
> + - compatible: should be one of the following.
> + - "rockchip,rk3368-mbox" for rk3368
> + - reg: physical base address of the controller and length of memory mapped
> + region.
> + physical base address of the share buffer and length of memory mapped
s/share/shared/
> + region.
> + - interrupts: The interrupt number to the cpu. The interrupt specifier format
> + depends on the interrupt controller.
Need to specify the value of #mbox-cells.
> +
> +Example:
> +--------
> +
> +/* RK3368 */
> +mbox: mbox@ff6b0000 {
> + compatible = "rockchip,rk3368-mailbox";
> + reg = <0x0 0xff6b0000 0x0 0x1000>,
> + <0x0 0xff8cf000 0x0 0x1000>; /* the end 4k of sram */
If this is just onchip SRAM usable for anything, then use the SRAM
binding (misc/sram.txt). It has provisions for defining the use.
> + interrupts = <GIC_SPI 146 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 147 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 148 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 149 IRQ_TYPE_LEVEL_HIGH>;
> + #mbox-cells = <1>;
> +};
> --
> 1.9.1
>
next prev parent reply other threads:[~2015-10-06 14:50 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-14 11:06 [PATCH 0/3] mailbox: rockchip: Add mailbox driver for Rockchip platform Caesar Wang
2015-09-14 11:06 ` [PATCH 1/3] dt-bindings: Add document of Rockchip mailbox Caesar Wang
2015-10-06 10:34 ` Jassi Brar
2015-10-22 2:07 ` Caesar Wang
2015-10-06 14:50 ` Rob Herring [this message]
2015-10-22 1:56 ` Caesar Wang
2015-09-14 11:06 ` [PATCH 2/3] mailbox: rockchip: Add Rockchip mailbox driver Caesar Wang
2015-10-06 11:35 ` Jassi Brar
2015-09-14 11:06 ` [PATCH 3/3] ARM64: dts: rk3368: Add mailbox device nodes Caesar Wang
2015-09-28 2:09 ` [PATCH 0/3] mailbox: rockchip: Add mailbox driver for Rockchip platform Caesar Wang
2015-09-29 2:52 ` Jassi Brar
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