linux-kernel - [PATCH v2 8/9] ARM: dts: keystone-k2e: Reserve MSM RAM for boot monitor

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Date:   Fri, 6 Jan 2017 15:57:32 -0600
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 v2 8/9] ARM: dts: keystone-k2e: Reserve MSM RAM for boot monitor

The Keystone 2 boot monitor uses 32 KB of the MSM RAM @ 0x0c1f0000
on 66AK2E SoCs, so add a reserved child node for the same.

This address is aligned to the values used within the latest boot
monitor firmware [1] as of commit cf8b431e8b3b ("soc: Move load
address to end of MSMC").

[1] git://git.ti.com/processor-firmware/ks2-boot-monitor.git

Signed-off-by: Suman Anna <s-anna@...com>
---
 arch/arm/boot/dts/keystone-k2e.dtsi | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/boot/dts/keystone-k2e.dtsi b/arch/arm/boot/dts/keystone-k2e.dtsi
index 256dcc87f36a..9d1d8a64d10e 100644
--- a/arch/arm/boot/dts/keystone-k2e.dtsi
+++ b/arch/arm/boot/dts/keystone-k2e.dtsi
@@ -88,6 +88,10 @@
 			ranges = <0x0 0x0c000000 0x200000>;
 			#address-cells = <1>;
 			#size-cells = <1>;
+
+			sram-bm@...000 {
+				reg = <0x001f0000 0x8000>;
+			};
 		};
 
 		dspgpio0: keystone_dsp_gpio@...20240 {
-- 
2.10.2