Messages in this thread Patch in this message | | | From | Chris Zhong <> | Subject | [PATCH v10 2/4] ARM: rockchip: Add pmu-sram binding | Date | Mon, 1 Dec 2014 16:52:18 +0800 |
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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>
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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
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