linux-kernel - [PATCH v4 13/15] ARM: shmobile: r8a73a4: add a DT node and a clock alias for the DMAC

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1374576609-27748-14-git-send-email-g.liakhovetski@gmx.de>
Date:	Tue, 23 Jul 2013 12:50:07 +0200
From:	Guennadi Liakhovetski <g.liakhovetski@....de>
To:	linux-kernel@...r.kernel.org
Cc:	Magnus Damm <magnus.damm@...il.com>,
	Simon Horman <horms@...ge.net.au>,
	Laurent Pinchart <laurent.pinchart@...asonboard.com>,
	Vinod Koul <vinod.koul@...el.com>, linux-sh@...r.kernel.org,
	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>,
	Guennadi Liakhovetski <g.liakhovetski+renesas@...il.com>
Subject: [PATCH v4 13/15] ARM: shmobile: r8a73a4: add a DT node and a clock alias for the DMAC

Add a DT node for the only system DMAC instance on r8a73a4. The RT DMAC
can be added later under the same multiplexer, because they can serve the
same slaves and use the same MID-RID values. Configuration data is
supplied to the driver, using a compatibility match string.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@...il.com>
---
 arch/arm/boot/dts/r8a73a4.dtsi         |   43 ++++++++++++++++++++++++++++++++
 arch/arm/mach-shmobile/clock-r8a73a4.c |    1 +
 2 files changed, 44 insertions(+), 0 deletions(-)

diff --git a/arch/arm/boot/dts/r8a73a4.dtsi b/arch/arm/boot/dts/r8a73a4.dtsi
index e344b10..3c9c7f2 100644
--- a/arch/arm/boot/dts/r8a73a4.dtsi
+++ b/arch/arm/boot/dts/r8a73a4.dtsi
@@ -78,6 +78,49 @@
 				<0 56 4>, <0 57 4>;
 	};
 
+	dmac: dma-multiplexer@0 {
+		compatible = "renesas,shdma-mux";
+		#dma-cells = <1>;
+		dma-channels = <20>;
+		dma-requests = <256>;
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		dma0: dma-controller@...00020 {
+			compatible = "renesas,shdma-r8a73a4";
+			reg = <0 0xe6700020 0 0x89e0>;
+			interrupt-parent = <&gic>;
+			interrupts = <0 220 4
+					0 200 4
+					0 201 4
+					0 202 4
+					0 203 4
+					0 204 4
+					0 205 4
+					0 206 4
+					0 207 4
+					0 208 4
+					0 209 4
+					0 210 4
+					0 211 4
+					0 212 4
+					0 213 4
+					0 214 4
+					0 215 4
+					0 216 4
+					0 217 4
+					0 218 4
+					0 219 4>;
+			interrupt-names = "error",
+					"ch0", "ch1", "ch2", "ch3",
+					"ch4", "ch5", "ch6", "ch7",
+					"ch8", "ch9", "ch10", "ch11",
+					"ch12", "ch13", "ch14", "ch15",
+					"ch16", "ch17", "ch18", "ch19";
+		};
+	};
+
 	thermal@...f0000 {
 		compatible = "renesas,rcar-thermal";
 		reg = <0 0xe61f0000 0 0x14>, <0 0xe61f0100 0 0x38>,
diff --git a/arch/arm/mach-shmobile/clock-r8a73a4.c b/arch/arm/mach-shmobile/clock-r8a73a4.c
index cd62b11..7d6d2a3 100644
--- a/arch/arm/mach-shmobile/clock-r8a73a4.c
+++ b/arch/arm/mach-shmobile/clock-r8a73a4.c
@@ -580,6 +580,7 @@ static struct clk_lookup lookups[] = {
 	CLKDEV_DEV_ID("sh-sci.4", &mstp_clks[MSTP216]),
 	CLKDEV_DEV_ID("sh-sci.5", &mstp_clks[MSTP217]),
 	CLKDEV_DEV_ID("shdma-r8a73a4.0", &mstp_clks[MSTP218]),
+	CLKDEV_DEV_ID("e6700020.dma-controller", &mstp_clks[MSTP218]),
 	CLKDEV_DEV_ID("rcar_thermal", &mstp_clks[MSTP522]),
 	CLKDEV_DEV_ID("e6520000.i2c", &mstp_clks[MSTP300]),
 	CLKDEV_DEV_ID("sh_mmcif.1", &mstp_clks[MSTP305]),
-- 
1.7.2.5

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/