linux-kernel - [PATCH 2/5] ARM: dts: keystone-k2l: Add MSM RAM node

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Date:   Thu, 1 Sep 2016 17:58:43 -0500
From:   Suman Anna <s-anna@...com>
To:     Santosh Shilimkar <ssantosh@...nel.org>
CC:     Russell King <linux@...linux.org.uk>,
        Rob Herring <robh+dt@...nel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Tero Kristo <t-kristo@...com>,
        Murali Karicheri <m-karicheri2@...com>,
        Vitaly Andrianov <vitalya@...com>, Suman Anna <s-anna@...com>
Subject: [PATCH 2/5] ARM: dts: keystone-k2l: Add MSM RAM node

Add the RAM managed by the Multicore Shared Memory Controller (MSMC)
as a mmio-sram node. The Keystone 2 Lamarr SoC has 2 MB of such
memory. Any specific MSM memory range needed by a software module
ought to be reserved using an appropriate child node.

Signed-off-by: Suman Anna <s-anna@...com>
---
 arch/arm/boot/dts/keystone-k2l.dtsi | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm/boot/dts/keystone-k2l.dtsi b/arch/arm/boot/dts/keystone-k2l.dtsi
index 2ee3d0ac2816..b2994c9ded43 100644
--- a/arch/arm/boot/dts/keystone-k2l.dtsi
+++ b/arch/arm/boot/dts/keystone-k2l.dtsi
@@ -34,6 +34,14 @@
 	soc {
 		/include/ "keystone-k2l-clocks.dtsi"
 
+		msm_ram: msmram@...00000 {
+			compatible = "mmio-sram";
+			reg = <0x0c000000 0x200000>;
+			ranges = <0x0 0x0c000000 0x200000>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+		};
+
 		uart2: serial@...48400 {
 			compatible = "ns16550a";
 			current-speed = <115200>;
-- 
2.9.3