linux-kernel - [PATCH v2 02/15] ARM: dts: sun8i: a33: Remove unnecessary reserved memory node

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Date:   Wed,  5 Dec 2018 10:24:31 +0100
From:   Paul Kocialkowski <paul.kocialkowski@...tlin.com>
To:     linux-media@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        devel@...verdev.osuosl.org
Cc:     Mauro Carvalho Chehab <mchehab@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Maxime Ripard <maxime.ripard@...tlin.com>,
        Chen-Yu Tsai <wens@...e.org>,
        Paul Kocialkowski <paul.kocialkowski@...tlin.com>,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        linux-sunxi@...glegroups.com, Hans Verkuil <hverkuil@...all.nl>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>
Subject: [PATCH v2 02/15] ARM: dts: sun8i: a33: Remove unnecessary reserved memory node

While we believed that the memory for the video engine had to be kept
in the first 256 MiBs of DRAM, this is no longer true starting with the
A33 and any address can be mapped.

As a result, remove the reserved memory node and let the kernel allocate
the CMA pool wherever it sees fit.

Signed-off-by: Paul Kocialkowski <paul.kocialkowski@...tlin.com>
---
 arch/arm/boot/dts/sun8i-a33.dtsi | 15 ---------------
 1 file changed, 15 deletions(-)

diff --git a/arch/arm/boot/dts/sun8i-a33.dtsi b/arch/arm/boot/dts/sun8i-a33.dtsi
index c2c10cd4a210..9ac4fae6c10d 100644
--- a/arch/arm/boot/dts/sun8i-a33.dtsi
+++ b/arch/arm/boot/dts/sun8i-a33.dtsi
@@ -186,21 +186,6 @@
 		};
 	};
 
-	reserved-memory {
-		#address-cells = <1>;
-		#size-cells = <1>;
-		ranges;
-
-		/* Address must be kept in the lower 256 MiBs of DRAM for VE. */
-		default-pool {
-			compatible = "shared-dma-pool";
-			size = <0x6000000>;
-			alloc-ranges = <0x4a000000 0x6000000>;
-			reusable;
-			linux,cma-default;
-		};
-	};
-
 	sound: sound {
 		compatible = "simple-audio-card";
 		simple-audio-card,name = "sun8i-a33-audio";
-- 
2.19.2