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Message-Id: <1445931106-683-2-git-send-email-wxt@rock-chips.com>
Date: Tue, 27 Oct 2015 15:31:44 +0800
From: Caesar Wang <wxt@...k-chips.com>
To: Heiko Stuebner <heiko@...ech.de>,
Jassi Brar <jassisinghbrar@...il.com>
Cc: frank.wang@...k-chips.com, linux-rockchip@...ts.infradead.org,
Caesar Wang <wxt@...k-chips.com>, devicetree@...r.kernel.org,
Kumar Gala <galak@...eaurora.org>,
linux-kernel@...r.kernel.org,
Ian Campbell <ijc+devicetree@...lion.org.uk>,
Rob Herring <robh+dt@...nel.org>,
Pawel Moll <pawel.moll@....com>,
Mark Rutland <mark.rutland@....com>,
linux-arm-kernel@...ts.infradead.org
Subject: [PATCH v1 1/3] dt-bindings: rockchip-mailbox: Add mailbox controller document on Rockchip SoCs
This add the necessary binding documentation for mailbox
found on RK3368 SoC.
Signed-off-by: Caesar Wang <wxt@...k-chips.com>
---
Changes in v1:
- PATCH[1/3] doc:
- As the Rob Herring comments, s/share/shared/ and specify the value of #mbox-cells.
- Move the shared memory in mailbox, let's move the property the client
driver in the future.
.../bindings/mailbox/rockchip-mailbox.txt | 32 ++++++++++++++++++++++
1 file changed, 32 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..b6bb84a
--- /dev/null
+++ b/Documentation/devicetree/bindings/mailbox/rockchip-mailbox.txt
@@ -0,0 +1,32 @@
+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.
+ - interrupts: The interrupt number to the cpu. The interrupt specifier format
+ depends on the interrupt controller.
+ - #mbox-cells: Common mailbox binding property to identify the number
+ of cells required for the mailbox specifier. Should be 1
+
+Example:
+--------
+
+/* RK3368 */
+mbox: mbox@...b0000 {
+ compatible = "rockchip,rk3368-mailbox";
+ reg = <0x0 0xff6b0000 0x0 0x1000>,
+ 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
--
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