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> @@ -37,6 +37,12 @@ linux,cma { > linux,cma-default; > }; > > + ele_reserved: memory@90000000 { > + compatible = "shared-dma-pool"; > + reg = <0 0x90000000 0 0x100000>; Instead of using a fixed address here, why not use 'alloc-ranges' to specify a valid range and let the kernel decide on where to reserve the 1MB area? As mentioned for the other patch, I would prefer a universal default for the memory node in a dtsi that can be used by all imx8ulp boards. See [1] for the i.MX93 proposal. [1] https://patchwork.kernel.org/project/linux-arm-kernel/patch/20260727-upstreaming-next-20260609-imx-ocotp-ele-v4-10-1a515de33093@kontron.de/ > + no-map; > + }; > + > m33_reserved: noncacheable-section@a8600000 { > reg = <0 0xa8600000 0 0x1000000>; > no-map; > @@ -259,6 +265,10 @@ &usdhc0 { > status = "okay"; > }; > > +&hsm0 { > + memory-region = <&ele_reserved>; > +}; > + > &fec { > pinctrl-names = "default", "sleep"; > pinctrl-0 = <&pinctrl_enet>; >