linux-kernel - [PATCH 4/4] ARM: rockchip: add pmu-sram sub

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Message-Id: <1413406225-16366-1-git-send-email-zyw@rock-chips.com>
Date:	Wed, 15 Oct 2014 13:50:25 -0700
From:	zyw@...k-chips.com
To:	Heiko Stuebner <heiko@...ech.de>
Cc:	Mike Turquette <mturquette@...aro.org>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	dianders@...omium.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, Kumar Gala <galak@...eaurora.org>,
	Russell King <linux@....linux.org.uk>,
	linux-rockchip@...ts.infradead.org,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Chris Zhong <zyw@...k-chips.com>,
	Mark Rutland <mark.rutland@....com>,
	linux-arm-kernel@...ts.infradead.org, Tony Xie <xxx@...k-chips.com>
Subject: [PATCH 4/4] ARM: rockchip: add pmu-sram sub

From: Chris Zhong <zyw@...k-chips.com>

The pmu-sram is used to store resume code, suspend/resume need get the
address of it. Therefore add a node and documentation for it.

Signed-off-by: Tony Xie <xxx@...k-chips.com>
Signed-off-by: Chris Zhong <zyw@...k-chips.com>

---

 .../devicetree/bindings/arm/rockchip/pmu-sram.txt  |   15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/arm/rockchip/pmu-sram.txt

diff --git a/Documentation/devicetree/bindings/arm/rockchip/pmu-sram.txt b/Documentation/devicetree/bindings/arm/rockchip/pmu-sram.txt
new file mode 100644
index 0000000..7a134cc
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/rockchip/pmu-sram.txt
@@ -0,0 +1,15 @@
+Rockchip SRAM for pmu:
+------------------------------
+
+The sram of pmu is used to store the function of resume from maskrom(the 1st
+level loader).
+
+Required node properties:
+- compatible : should be "rockchip,rk3288-pmu-sram"
+- reg : physical base address and the size of the registers window
+
+Example:
+	pmu_intmem@...20000 {
+		compatible = "mmio-sram", "rockchip,rk3288-pmu-sram";
+		reg = <0xff720000 0x4000>;
+	};
-- 
1.7.9.5

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