From 0dffb878ea99de9c30a24cdd8a73bc3f318baa88 Mon Sep 17 00:00:00 2001 From: Sharath Kumar Dasari Date: Mon, 12 Jun 2023 09:41:45 +0200 Subject: 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 Signed-off-by: Michal Simek Link: https://lore.kernel.org/r/8ddc7fb4bf40faead7a015ad7e095f3f7d2ec191.1686555698.git.michal.simek@amd.com --- arch/arm64/boot/dts/xilinx/zynqmp-sm-k26-revA.dts | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'arch/arm64/boot/dts/xilinx') diff --git a/arch/arm64/boot/dts/xilinx/zynqmp-sm-k26-revA.dts b/arch/arm64/boot/dts/xilinx/zynqmp-sm-k26-revA.dts index c1f21b0e1760..c4774a42d5fc 100644 --- a/arch/arm64/boot/dts/xilinx/zynqmp-sm-k26-revA.dts +++ b/arch/arm64/boot/dts/xilinx/zynqmp-sm-k26-revA.dts @@ -50,6 +50,17 @@ 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; -- cgit v1.2.3-58-ga151