From: Chris Zhong <zyw@rock-chips.com>
To: heiko@sntech.de, dianders@chromium.org
Cc: mturquette@linaro.org,
Ian Campbell <ijc+devicetree@hellion.org.uk>,
Russell King <linux@arm.linux.org.uk>,
Rob Herring <robh+dt@kernel.org>, Pawel Moll <pawel.moll@arm.com>,
Mark Rutland <mark.rutland@arm.com>,
Linus Walleij <linus.walleij@linaro.org>,
khilman@kernel.org, linux-rockchip@lists.infradead.org,
Chris Zhong <zyw@rock-chips.com>, Tony Xie <xxx@rock-chips.com>,
Kumar Gala <galak@codeaurora.org>,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v10 2/4] ARM: rockchip: Add pmu-sram binding
Date: Mon, 1 Dec 2014 16:52:18 +0800 [thread overview]
Message-ID: <1417423940-1669-3-git-send-email-zyw@rock-chips.com> (raw)
In-Reply-To: <1417423940-1669-1-git-send-email-zyw@rock-chips.com>
The pmu-sram is used to store resume code, suspend/resume need get the
address of it. Therefore add a binding and documentation for it.
Signed-off-by: Tony Xie <xxx@rock-chips.com>
Signed-off-by: Chris Zhong <zyw@rock-chips.com>
Reviewed-by: Doug Anderson <dianders@chromium.org>
---
Changes in v10: None
Changes in v9: None
Changes in v8: None
Changes in v7: None
Changes in v6:
- change pmu_intmem@ff720000 to sram@ff720000
Changes in v5:
- change the size of sram in example
Changes in v4: None
Changes in v3: None
Changes in v2: None
.../devicetree/bindings/arm/rockchip/pmu-sram.txt | 16 ++++++++++++++++
1 file changed, 16 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..6b42fda
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/rockchip/pmu-sram.txt
@@ -0,0 +1,16 @@
+Rockchip SRAM for pmu:
+------------------------------
+
+The sram of pmu is used to store the function of resume from maskrom(the 1st
+level loader). This is a common use of the "pmu-sram" because it keeps power
+even in low power states in the system.
+
+Required node properties:
+- compatible : should be "rockchip,rk3288-pmu-sram"
+- reg : physical base address and the size of the registers window
+
+Example:
+ sram@ff720000 {
+ compatible = "rockchip,rk3288-pmu-sram", "mmio-sram";
+ reg = <0xff720000 0x1000>;
+ };
--
1.9.1
next prev parent reply other threads:[~2014-12-01 8:53 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-01 8:52 [PATCH v10 0/4] This suspend patch is only support cut off the power of cpu and some external Chris Zhong
2014-12-01 8:52 ` [PATCH v10 1/4] ARM: rockchip: add suspend and resume for RK3288 Chris Zhong
2014-12-01 8:52 ` Chris Zhong [this message]
2014-12-01 8:52 ` [PATCH v10 3/4] ARM: dts: add RK3288 suspend support Chris Zhong
2014-12-01 8:52 ` [PATCH v10 4/4] ARM: dts: rockchip: add suspend settings for rk3288-evb-rk808 Chris Zhong
2014-12-01 22:19 ` Doug Anderson
2014-12-01 19:51 ` [PATCH v10 0/4] This suspend patch is only support cut off the power of cpu and some external Kevin Hilman
2014-12-01 22:08 ` Doug Anderson
2014-12-02 1:07 ` Doug Anderson
2014-12-02 1:26 ` Kevin Hilman
2014-12-03 13:55 ` Chris Zhong
2014-12-03 19:23 ` Kevin Hilman
2014-12-07 23:46 ` Heiko Stübner
2014-12-02 1:18 ` Chris Zhong
2015-01-02 20:57 ` Heiko Stübner
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