EdgeLock Enclave are has a hardware limitation of restricted access to the DDR memory range: - 0x80000000 0x9FFFFFFF ELE-MU driver requireis 1MB of memory. In this patch, reserving 1MB of ddr memory region from the lower 32-bit range. Signed-off-by: Dong Aisheng <aisheng.dong@xxxxxxx> Signed-off-by: Pankaj Gupta <pankaj.gupta@xxxxxxx> --- arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts b/arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts index cafd39130eb8..bcb4ae931c64 100644 --- a/arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts +++ b/arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts @@ -7,6 +7,10 @@ #include "imx93.dtsi" +&ele_fw2 { + memory-region = <&ele_reserved>; +}; + / { model = "NXP i.MX93 11X11 EVK board"; compatible = "fsl,imx93-11x11-evk", "fsl,imx93"; @@ -68,6 +72,17 @@ reg_vref_1v8: regulator-adc-vref { regulator-max-microvolt = <1800000>; }; + reserved-memory { + #address-cells = <2>; + #size-cells = <2>; + ranges; + ele_reserved: ele-reserved@a4120000 { + compatible = "shared-dma-pool"; + reg = <0 0xa4120000 0 0x100000>; + no-map; + }; + }; + reg_usdhc2_vmmc: regulator-usdhc2 { compatible = "regulator-fixed"; pinctrl-names = "default"; -- 2.34.1