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Commit 31ffe020 authored by Dave Gerlach's avatar Dave Gerlach Committed by Tony Lindgren
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ARM: dts: am33xx: Reserve pm code and data regions in ocmcram sram node 



Add a 'pm_sram_code' reserved region to the ocmcram node to be exposed
by the mmio-sram driver as a pool but also mark it protect-exec so that
it can run code copied to it using sram_exec_copy.

Add another 'pm_sram_data' reserved region to the ocmcram node to act as
the data space for any code running from the 'pm_sram_code' region that
is exposed as a regular pool.

Signed-off-by: default avatarDave Gerlach <d-gerlach@ti.com>
Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
parent ef1e7b45

arch/arm/boot/dts/am33xx.dtsi

+15 −0
Original line number Diff line number Diff line
@@ -905,6 +905,21 @@ 
		ocmcram: ocmcram@40300000 {

			compatible = "mmio-sram";

			reg = <0x40300000 0x10000>; /* 64k */

			ranges = <0x0 0x40300000 0x10000>;

			#address-cells = <1>;

			#size-cells = <1>;



			pm_sram_code: pm-sram-code@0 {

				compatible = "ti,sram";

				reg = <0x0 0x1000>;

				protect-exec;

			};



			pm_sram_data: pm-sram-data@1000 {

				compatible = "ti,sram";

				reg = <0x1000 0x1000>;

				pool;

			};

		};



		elm: elm@48080000 {