From: Wadim Egorov <w.egorov@phytec.de>
Date: Fri, 13 Feb 2026 05:38:06 +0000 (+0100)
Subject: arm64: dts: ti: k3-am62-phycore-som: Add 128MiB of global CMA
X-Git-Tag: v7.1-rc1~125^2~17^2~43
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2af52683ecd85ae33dcd52eaddef6d592da5492a;p=thirdparty%2Fkernel%2Fstable.git

arm64: dts: ti: k3-am62-phycore-som: Add 128MiB of global CMA

Reserve 128MiB of global CMA which is also marked as re-usable
so that OS can also use the same if peripheral drivers are not using
the same.

Based on the use case described in commit c43dd2fe5316 ("arm64: dts: ti:
k3-am62x-sk-common: Reserve 128MiB of global CMA").

Signed-off-by: Wadim Egorov <w.egorov@phytec.de>
Link: https://patch.msgid.link/20260213053806.219495-1-w.egorov@phytec.de
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
---

diff --git a/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi b/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi
index e15da771bc07d..3baa653257bb6 100644
--- a/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi
@@ -37,6 +37,13 @@
 		#size-cells = <2>;
 		ranges;
 
+		linux,cma {
+			compatible = "shared-dma-pool";
+			reusable;
+			size = <0x00 0x8000000>;
+			linux,cma-default;
+		};
+
 		ramoops@9c700000 {
 			compatible = "ramoops";
 			reg = <0x00 0x9c700000 0x00 0x00100000>;