Commit 0dffb878 authored Jun 12, 2023 by Sharath Kumar Dasari Committed by Michal Simek Jul 10, 2023

arm64: zynqmp: Add memory reserved node for k26 Kria SOM board

PMUFW (Power Management Unit firmware) requires top 1MB of the lower DDR
memory reserved for its operation, this is missing in k26 SM static dts
file. Bootloader or kernel shouldn't access this location.

Signed-off-by: Sharath Kumar Dasari <sharath.kumar.dasari@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/8ddc7fb4bf40faead7a015ad7e095f3f7d2ec191.1686555698.git.michal.simek@amd.com

parent 233e6e9d

arch/arm64/boot/dts/xilinx/zynqmp-sm-k26-revA.dts

+11 −0

Original line number	Diff line number	Diff line
		@@ -50,6 +50,17 @@ memory@0 {
		reg = <0x0 0x0 0x0 0x80000000>, <0x8 0x00000000 0x0 0x80000000>;
		};

		reserved-memory {
		#address-cells = <2>;
		#size-cells = <2>;
		ranges;

		pmu_region: pmu@7ff00000 {
		reg = <0x0 0x7ff00000 0x0 0x100000>;
		no-map;
		};
		};

		gpio-keys {
		compatible = "gpio-keys";
		autorepeat;