linux-kernel - [PATCH v4 03/12] devicetree: Add bindings for the ATH79 DDR controllers

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: Windows password security audit tool. GUI, reports in PDF.

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

Message-Id: <1433029955-7346-4-git-send-email-albeu@free.fr>
Date:	Sun, 31 May 2015 01:52:26 +0200
From:	Alban Bedel <albeu@...e.fr>
To:	linux-mips@...ux-mips.org
Cc:	Rob Herring <robh+dt@...nel.org>, Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Jason Cooper <jason@...edaemon.net>,
	Ralf Baechle <ralf@...ux-mips.org>,
	Alban Bedel <albeu@...e.fr>,
	Andrew Bresticker <abrestic@...omium.org>,
	Qais Yousef <qais.yousef@...tec.com>,
	Gabor Juhos <juhosg@...nwrt.org>, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v4 03/12] devicetree: Add bindings for the ATH79 DDR controllers

The DDR controller of the ARxxx and AR9xxx families provides an
interface to flush the FIFO between various devices and the DDR.
This is mainly used by the IRQ controller to flush the FIFO before
running the interrupt handler of such devices.

Signed-off-by: Alban Bedel <albeu@...e.fr>
---
v2: * Fix the node names to respect ePAPR
v3: * Fix some typos
    * Really fix the node names this time
---
 .../memory-controllers/ath79-ddr-controller.txt    | 35 ++++++++++++++++++++++
 1 file changed, 35 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/memory-controllers/ath79-ddr-controller.txt

diff --git a/Documentation/devicetree/bindings/memory-controllers/ath79-ddr-controller.txt b/Documentation/devicetree/bindings/memory-controllers/ath79-ddr-controller.txt
new file mode 100644
index 0000000..efe35a06
--- /dev/null
+++ b/Documentation/devicetree/bindings/memory-controllers/ath79-ddr-controller.txt
@@ -0,0 +1,35 @@
+Binding for Qualcomm  Atheros AR7xxx/AR9xxx DDR controller
+
+The DDR controller of the ARxxx and AR9xxx families provides an interface
+to flush the FIFO between various devices and the DDR. This is mainly used
+by the IRQ controller to flush the FIFO before running the interrupt handler
+of such devices.
+
+Required properties:
+
+- compatible: has to be "qca,<soc-type>-ddr-controller",
+  "qca,[ar7100|ar7240]-ddr-controller" as fallback.
+  On SoC with PCI support "qca,ar7100-ddr-controller" should be used as
+  fallback, otherwise "qca,ar7240-ddr-controller" should be used.
+- reg: Base address and size of the controllers memory area
+- #qca,ddr-wb-channel-cells: has to be 1, the index of the write buffer
+  channel
+
+Example:
+
+	ddr_ctrl: memory-controller@...00000 {
+		compatible = "qca,ar9132-ddr-controller",
+				"qca,ar7240-ddr-controller";
+		reg = <0x18000000 0x100>;
+
+		#qca,ddr-wb-channel-cells = <1>;
+	};
+
+	...
+
+	interrupt-controller {
+		...
+		qca,ddr-wb-channel-interrupts = <2>, <3>, <4>, <5>;
+		qca,ddr-wb-channels = <&ddr_ctrl 3>, <&ddr_ctrl 2>,
+					<&ddr_ctrl 0>, <&ddr_ctrl 1>;
+	};
-- 
2.0.0

--
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/