[RFC PATCH 09/11] ARM: dts: AM33XX: Associate SRAM with MPU and mark it exec

Russ Dill Russ.Dill at ti.com
Tue Sep 17 08:43:35 EDT 2013


The SRAM is for use by the MPU. Marking it as such makes it
easier for PM initialization code to locate the SRAM in order to
load a PIE section into it.

Additionally, set the map-exec flag to allow code to be run
from SRAM. This is necessary for suspend/resume.

Signed-off-by: Russ Dill <Russ.Dill at ti.com>
---
 arch/arm/boot/dts/am33xx.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi
index 302463d..20942a2 100644
--- a/arch/arm/boot/dts/am33xx.dtsi
+++ b/arch/arm/boot/dts/am33xx.dtsi
@@ -62,6 +62,7 @@
 		mpu {
 			compatible = "ti,omap3-mpu";
 			ti,hwmods = "mpu";
+			sram = <&ocmcram>;
 		};
 	};
 
@@ -507,6 +508,7 @@
 		ocmcram: ocmcram at 40300000 {
 			compatible = "mmio-sram";
 			reg = <0x40300000 0x10000>; /* 64k */
+			map-exec;
 		};
 
 		wkup_m3: wkup_m3 at 44d00000 {
-- 
1.8.3.2




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