linux-kernel - [PATCH] ARM: dts: keystone-k2g: Add Message Manager node

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Message-ID: <20160819204748.21529-1-nm@ti.com>
Date:   Fri, 19 Aug 2016 15:47:48 -0500
From:   Nishanth Menon <nm@...com>
To:     Santosh Shilimkar <ssantosh@...nel.org>
CC:     <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>, Nishanth Menon <nm@...com>
Subject: [PATCH] ARM: dts: keystone-k2g: Add Message Manager node

Introduce the message manager node for the A15 queues on which Linux
runs. The Message Manager is primarily used for communication with
Power Management controller on K2G.

Signed-off-by: Nishanth Menon <nm@...com>
---
based on: v4.8-rc1
Bootlog: http://pastebin.ubuntu.com/23071446/ (with CONFIG_MAILBOX,
   CONFIG_TI_MESSAGE_MANAGER enabled on top of keystone_defconfig)
Binding: Documentation/devicetree/bindings/mailbox/ti,message-manager.txt
SoC Datasheet and relevant documentation: http://www.ti.com/product/66ak2g02
Communication Protocol: http://processors.wiki.ti.com/index.php/TISCI

 arch/arm/boot/dts/keystone-k2g.dtsi | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/arch/arm/boot/dts/keystone-k2g.dtsi b/arch/arm/boot/dts/keystone-k2g.dtsi
index 3372615b885c..25f5aaa05197 100644
--- a/arch/arm/boot/dts/keystone-k2g.dtsi
+++ b/arch/arm/boot/dts/keystone-k2g.dtsi
@@ -93,5 +93,17 @@
 			clock-frequency = <200000000>;
 			status = "disabled";
 		};
+
+		msgmgr: msgmgr@...00000 {
+			compatible = "ti,k2g-message-manager";
+			#mbox-cells = <2>;
+			reg-names = "queue_proxy_region",
+				    "queue_state_debug_region";
+			reg = <0x02a00000 0x400000>, <0x028c3400 0x400>;
+			interrupt-names = "rx_005",
+					  "rx_057";
+			interrupts = <GIC_SPI 324 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 327 IRQ_TYPE_LEVEL_HIGH>;
+		};
 	};
 };
-- 
2.9.1.200.gb1ec08f