[PATCH] arm64: dts: ti: k3-j7: Reserve memory for LPM meta data

[Prasanth Babu Mantena]

For TI SOCs J7200, J784S4, J722S, which support low power modes,
A chunk of memory is reserved for LPM meta data, which is needed
for saving ATF context and the certificate information of ATF and
OPTEE and DM image. This LPM metadata area is firewalled to be
accessed only by TIFS.

Signed-off-by: Prasanth Babu Mantena <p-mantena at ti.com>
---
 arch/arm64/boot/dts/ti/k3-j7200-som-p0.dtsi             | 6 ++++++
 arch/arm64/boot/dts/ti/k3-j722s-evm.dts                 | 6 ++++++
 arch/arm64/boot/dts/ti/k3-j784s4-j742s2-evm-common.dtsi | 6 ++++++
 3 files changed, 18 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-j7200-som-p0.dtsi b/arch/arm64/boot/dts/ti/k3-j7200-som-p0.dtsi
index 5a8c2e707fde..26c2489c3b91 100644
--- a/arch/arm64/boot/dts/ti/k3-j7200-som-p0.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j7200-som-p0.dtsi
@@ -40,6 +40,12 @@ mcu_r5fss0_core0_memory_region: memory at a0100000 {
 			reg = <0x00 0xa0100000 0x00 0xf00000>;
 			no-map;
 		};
+
+		lpm_memory_region: lpm-memories at a4800000 {
+			reg = <0x00 0xa4800000 0x00 0x00300000>;
+			no-map;
+			bootph-all;
+		};
 	};
 
 	mux0: mux-controller-0 {
diff --git a/arch/arm64/boot/dts/ti/k3-j722s-evm.dts b/arch/arm64/boot/dts/ti/k3-j722s-evm.dts
index e66330c71593..f2ca0354a917 100644
--- a/arch/arm64/boot/dts/ti/k3-j722s-evm.dts
+++ b/arch/arm64/boot/dts/ti/k3-j722s-evm.dts
@@ -63,6 +63,12 @@ wkup_r5fss0_core0_memory_region: memory at a0100000 {
 			reg = <0x00 0xa0100000 0x00 0xf00000>;
 			no-map;
 		};
+
+		lpm_memory_region: lpm-memory at a7000000 {
+			reg = <0x00 0xa7000000 0x00 0x00300000>;
+			no-map;
+			bootph-all;
+		};
 	};
 
 	vmain_pd: regulator-0 {
diff --git a/arch/arm64/boot/dts/ti/k3-j784s4-j742s2-evm-common.dtsi b/arch/arm64/boot/dts/ti/k3-j784s4-j742s2-evm-common.dtsi
index ff3a85cbc524..3e79677792a5 100644
--- a/arch/arm64/boot/dts/ti/k3-j784s4-j742s2-evm-common.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j784s4-j742s2-evm-common.dtsi
@@ -46,6 +46,12 @@ mcu_r5fss0_core0_memory_region: memory at a0100000 {
 			reg = <0x00 0xa0100000 0x00 0xf00000>;
 			no-map;
 		};
+
+		lpm_memory_region: lpm-memory at ab000000 {
+			reg = <0x00 0xab000000 0x00 0x00300000>;
+			no-map;
+			bootph-all;
+		};
 	};
 
 	evm_12v0: regulator-evm12v0 {
-- 
2.34.1