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Define the IMEM region to enable this functionality. As described, overall IMEM region is 32KB but only initial 4KB is accessible by all masters in the SoC. Signed-off-by: Kathiravan Thirumoorthy --- arch/arm64/boot/dts/qcom/ipq9574.dtsi | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/ipq9574.dtsi b/arch/arm64/boot/dts/qc= om/ipq9574.dtsi index d7278f2137ac58305cc4e82c1d6c26c08bc7a405..2ed111139c579787069def7f29f= 2d07e9a454e04 100644 --- a/arch/arm64/boot/dts/qcom/ipq9574.dtsi +++ b/arch/arm64/boot/dts/qcom/ipq9574.dtsi @@ -741,6 +741,17 @@ usb_0_qmpphy: phy@7d000 { status =3D "disabled"; }; =20 + sram@8600000 { + compatible =3D "qcom,ipq9574-imem", "mmio-sram"; + reg =3D <0x08600000 0x8000>; + ranges =3D <0 0x08600000 0x8000>; + + no-memory-wc; + + #address-cells =3D <1>; + #size-cells =3D <1>; + }; + usb3: usb@8af8800 { compatible =3D "qcom,ipq9574-dwc3", "qcom,dwc3"; reg =3D <0x08af8800 0x400>; --=20 2.34.1