linux-kernel - [PATCH v4 11/19] ARM: sun7i-a20: Add support for the C1 SRAM region with the SRAM controller

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Date:   Mon, 18 Jun 2018 16:58:35 +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 11/19] ARM: sun7i-a20: Add support for the C1 SRAM region with the SRAM controller

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

This adds support for the C1 SRAM region (to be used with the SRAM
controller driver) for the A20 platform. The region 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/sun7i-a20.dtsi b/arch/arm/boot/dts/sun7i-a20.dtsi
index f64eab4ce6f1..9afd82f9ec79 100644
--- a/arch/arm/boot/dts/sun7i-a20.dtsi
+++ b/arch/arm/boot/dts/sun7i-a20.dtsi
@@ -274,6 +274,20 @@
 					status = "disabled";
 				};
 			};
+
+			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,sun7i-a20-sram-c1",
+						     "allwinner,sun4i-a10-sram-c1";
+					reg = <0x000000 0x80000>;
+				};
+			};
 		};
 
 		nmi_intc: interrupt-controller@...0030 {
-- 
2.17.0