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charset="utf-8" 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 --- 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@a0100000 { reg =3D <0x00 0xa0100000 0x00 0xf00000>; no-map; }; + + lpm_memory_region: lpm-memories@a4800000 { + reg =3D <0x00 0xa4800000 0x00 0x00300000>; + no-map; + bootph-all; + }; }; =20 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@a0100000 { reg =3D <0x00 0xa0100000 0x00 0xf00000>; no-map; }; + + lpm_memory_region: lpm-memory@a7000000 { + reg =3D <0x00 0xa7000000 0x00 0x00300000>; + no-map; + bootph-all; + }; }; =20 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@a0100000 { reg =3D <0x00 0xa0100000 0x00 0xf00000>; no-map; }; + + lpm_memory_region: lpm-memory@ab000000 { + reg =3D <0x00 0xab000000 0x00 0x00300000>; + no-map; + bootph-all; + }; }; =20 evm_12v0: regulator-evm12v0 { --=20 2.34.1