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Date: Thu, 13 Jun 2024 20:39:02 +0530
From: Devarsh Thakkar <devarsht@...com>
To: <nm@...com>, <vigneshr@...com>, <kristo@...nel.org>, <robh@...nel.org>,
<krzk+dt@...nel.org>, <conor+dt@...nel.org>,
<linux-arm-kernel@...ts.infradead.org>, <devicetree@...r.kernel.org>,
<linux-kernel@...r.kernel.org>
CC: <praneeth@...com>, <a-bhatia1@...com>, <j-luthra@...com>,
<b-brnich@...com>, <detheridge@...com>, <p-mantena@...com>,
<vijayp@...com>, <devarsht@...com>
Subject: [PATCH 3/3] arm64: dts: ti: k3-am62p5-sk: Reserve 576 MiB of global CMA
From: Brandon Brnich <b-brnich@...com>
AM62p has different multimedia components such as Camera, Display, H264
Video Codec which uses CMA for buffer allocations. We require 576MiB for 12
channel decode-to-encode 720x480@...PS use case.
Signed-off-by: Brandon Brnich <b-brnich@...com>
Signed-off-by: Devarsh Thakkar <devarsht@...com>
---
arch/arm64/boot/dts/ti/k3-am62p5-sk.dts | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts b/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
index fb980d46e304..5ef74d9f8eea 100644
--- a/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
@@ -48,6 +48,13 @@ reserved-memory {
#size-cells = <2>;
ranges;
+ linux,cma {
+ compatible = "shared-dma-pool";
+ reusable;
+ size = <0x00 0x24000000>;
+ linux,cma-default;
+ };
+
secure_tfa_ddr: tfa@...80000 {
reg = <0x00 0x9e780000 0x00 0x80000>;
no-map;
--
2.39.1
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