[PATCH v5 19/22] ARM: dts: sun5i: Add Video Engine and reserved memory nodes

From: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
To: linux-media@vger.kernel.org, devicetree@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Cc: "Mauro Carvalho Chehab" <mchehab@kernel.org>,
	"Rob Herring" <robh+dt@kernel.org>,
	"Mark Rutland" <mark.rutland@arm.com>,
	"Maxime Ripard" <maxime.ripard@bootlin.com>,
	"Chen-Yu Tsai" <wens@csie.org>,
	"Paul Kocialkowski" <paul.kocialkowski@bootlin.com>,
	"Marco Franchi" <marco.franchi@nxp.com>,
	"Icenowy Zheng" <icenowy@aosc.io>,
	"Hans Verkuil" <hverkuil@xs4all.nl>,
	"Keiichi Watanabe" <keiichiw@chromium.org>,
	"Jonathan Corbet" <corbet@lwn.net>,
	"Smitha T Murthy" <smitha.t@samsung.com>,
	"Tom Saeger" <tom.saeger@oracle.com>,
	"Andrzej Hajda" <a.hajda@samsung.com>,
	"David S . Miller" <davem@davemloft.net>,
	"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
	"Andrew Morton" <akpm@linux-foundation.org>,
	"Randy Dunlap" <rdunlap@infradead.org>,
	"Arnd Bergmann" <arnd@arndb.de>,
	"Geert Uytterhoeven" <geert@linux-m68k.org>,
	"Laurent Pinchart" <laurent.pinchart+renesas@ideasonboard.com>,
	"Jacob Chen" <jacob-chen@iotwrt.com>,
	"Neil Armstrong" <narmstrong@baylibre.com>,
	"Benoit Parrot" <bparrot@ti.com>,
	"Todor Tomov" <todor.tomov@linaro.org>,
	"Alexandre Courbot" <acourbot@chromium.org>,
	"Sakari Ailus" <sakari.ailus@linux.intel.com>,
	"Andy Shevchenko" <andriy.shevchenko@linux.intel.com>,
	"Pawel Osciak" <posciak@chromium.org>,
	"Ricardo Ribalda Delgado" <ricardo.ribalda@gmail.com>,
	"Hans de Goede" <hdegoede@redhat.com>,
	"Sami Tolvanen" <samitolvanen@google.com>,
	"Niklas Söderlund" <niklas.soderlund+renesas@ragnatech.se>,
	linux-sunxi@googlegroups.com,
	"Thomas Petazzoni" <thomas.petazzoni@bootlin.com>,
	"Hugues Fruchet" <hugues.fruchet@st.com>,
	"Randy Li" <ayaka@soulik.info>
Subject: [PATCH v5 19/22] ARM: dts: sun5i: Add Video Engine and reserved memory nodes
Date: Tue, 10 Jul 2018 10:01:11 +0200	[thread overview]
Message-ID: <20180710080114.31469-20-paul.kocialkowski@bootlin.com> (raw)
In-Reply-To: <20180710080114.31469-1-paul.kocialkowski@bootlin.com>

This adds nodes for the Video Engine and the associated reserved memory
for sun5i-based platforms. Up to 96 MiB of memory are dedicated to the
CMA pool.

The VPU can only map the first 256 MiB of DRAM, so the reserved memory
pool has to be located in that area. Following Allwinner's decision in
downstream software, the last 96 MiB of the first 256 MiB of RAM are
reserved for this purpose.

Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
---
 arch/arm/boot/dts/sun5i.dtsi | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/arch/arm/boot/dts/sun5i.dtsi b/arch/arm/boot/dts/sun5i.dtsi
index 51dcefc76c12..1dafcfd99da8 100644
--- a/arch/arm/boot/dts/sun5i.dtsi
+++ b/arch/arm/boot/dts/sun5i.dtsi
@@ -108,6 +108,21 @@
 		};
 	};
 
+	reserved-memory {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		/* Address must be kept in the lower 256 MiBs of DRAM for VE. */
+		cma_pool: cma@4a000000 {
+			compatible = "shared-dma-pool";
+			size = <0x6000000>;
+			alloc-ranges = <0x4a000000 0x6000000>;
+			reusable;
+			linux,cma-default;
+		};
+	};
+
 	soc@1c00000 {
 		compatible = "simple-bus";
 		#address-cells = <1>;
@@ -295,6 +310,19 @@
 			};
 		};
 
+		vpu: video-codec@1c0e000 {
+			compatible = "allwinner,sun5i-a13-video-engine";
+			reg = <0x01c0e000 0x1000>;
+
+			clocks = <&ccu CLK_AHB_VE>, <&ccu CLK_VE>,
+				 <&ccu CLK_DRAM_VE>;
+			clock-names = "ahb", "mod", "ram";
+
+			resets = <&ccu RST_VE>;
+			interrupts = <53>;
+			allwinner,sram = <&ve_sram 1>;
+		};
+
 		mmc0: mmc@1c0f000 {
 			compatible = "allwinner,sun5i-a13-mmc";
 			reg = <0x01c0f000 0x1000>;
-- 
2.17.1

