linux-kernel - [PATCH v4 12/19] ARM: sun8i-a33: Add SRAM controller node and C1 SRAM region

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Date:   Mon, 18 Jun 2018 16:58:36 +0200
From:   Paul Kocialkowski <paul.kocialkowski@...tlin.com>
To:     linux-media@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.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>,
        Marco Franchi <marco.franchi@....com>,
        Icenowy Zheng <icenowy@...c.io>,
        Hans Verkuil <hverkuil@...all.nl>,
        Sylwester Nawrocki <s.nawrocki@...sung.com>,
        Tom Saeger <tom.saeger@...cle.com>,
        Smitha T Murthy <smitha.t@...sung.com>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Andrzej Hajda <a.hajda@...sung.com>,
        Jonathan Corbet <corbet@....net>,
        "David S . Miller" <davem@...emloft.net>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Randy Dunlap <rdunlap@...radead.org>,
        Arnd Bergmann <arnd@...db.de>,
        Stanimir Varbanov <stanimir.varbanov@...aro.org>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Ramesh Shanmugasundaram <ramesh.shanmugasundaram@...renesas.com>,
        Jacob Chen <jacob-chen@...wrt.com>,
        Steve Longerbeam <slongerbeam@...il.com>,
        Todor Tomov <todor.tomov@...aro.org>,
        Jacopo Mondi <jacopo+renesas@...ndi.org>,
        Alexandre Courbot <acourbot@...omium.org>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Tomasz Figa <tfiga@...omium.org>,
        Ricardo Ribalda Delgado <ricardo.ribalda@...il.com>,
        Hans de Goede <hdegoede@...hat.com>,
        Sami Tolvanen <samitolvanen@...gle.com>,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        linux-sunxi@...glegroups.com,
        Hugues Fruchet <hugues.fruchet@...com>,
        Randy Li <ayaka@...lik.info>
Subject: [PATCH v4 12/19] ARM: sun8i-a33: Add SRAM controller node and C1 SRAM region

From: Maxime Ripard <maxime.ripard@...tlin.com>

This adds a SRAM controller node for the A33, with support for the C1
SRAM region that is shared between the Video Engine and the CPU.

Signed-off-by: Maxime Ripard <maxime.ripard@...tlin.com>
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@...tlin.com>

diff --git a/arch/arm/boot/dts/sun8i-a33.dtsi b/arch/arm/boot/dts/sun8i-a33.dtsi
index a21f2ed07a52..97a976b3b1ef 100644
--- a/arch/arm/boot/dts/sun8i-a33.dtsi
+++ b/arch/arm/boot/dts/sun8i-a33.dtsi
@@ -204,6 +204,28 @@
 	};
 
 	soc@...0000 {
+		sram-controller@...0000 {
+			compatible = "allwinner,sun8i-a33-sram-controller";
+			reg = <0x01c00000 0x30>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges;
+
+			sram_c: sram@...0000 {
+				compatible = "mmio-sram";
+				reg = <0x01d00000 0xd00000>;
+				#address-cells = <1>;
+				#size-cells = <1>;
+				ranges = <0 0x01d00000 0xd00000>;
+
+				ve_sram: sram-section@0 {
+					compatible = "allwinner,sun8i-a33-sram-c1",
+						     "allwinner,sun4i-a10-sram-c1";
+					reg = <0x000000 0x80000>;
+				};
+			};
+		};
+
 		tcon0: lcd-controller@...c000 {
 			compatible = "allwinner,sun8i-a33-tcon";
 			reg = <0x01c0c000 0x1000>;
-- 
2.17.0