[PATCH 17/18] Documentation: dt: add Vybrid DDR memory controller bindings
From: stefan@agner.ch (Stefan Agner)
Date: 2016-03-10 02:18:54
Also in:
linux-clk, linux-devicetree, lkml
Subsystem:
open firmware and flattened device tree bindings, the rest · Maintainers:
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
Add device-tree bindings of Vybrids LPDDR2/DDR3 SDRAM Memory Controller. Access to the device is required to put the memory into self-refresh mode. Signed-off-by: Stefan Agner <stefan@agner.ch> --- .../bindings/arm/freescale/fsl,vf610-ddrmc.txt | 23 ++++++++++++++++++++++ 1 file changed, 23 insertions(+) create mode 100644 Documentation/devicetree/bindings/arm/freescale/fsl,vf610-ddrmc.txt
diff --git a/Documentation/devicetree/bindings/arm/freescale/fsl,vf610-ddrmc.txt b/Documentation/devicetree/bindings/arm/freescale/fsl,vf610-ddrmc.txt
new file mode 100644
index 0000000..56a71d6
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/freescale/fsl,vf610-ddrmc.txt@@ -0,0 +1,23 @@ +Freescale Vybrid LPDDR2/DDR3 SDRAM Memory Controller + +The memory controller supports high performance applications for 16-bit or +8-bit DDR2, or LPDDR SDRAM memories. + +Required properties: +- compatible: "fsl,vf610-ddrmc" +- reg: the register range of the DDRMC registers +- clocks: DDRMC main clock to clock memory and access registers. +- clock-names: Must contain "ddrc", matching entry in the clocks property. +- fsl,has-cke-reset-pulls: + States whether pull-down/up are populated on DDR CKE/RESET + signals to allow using DDR self-refresh modes (see Vybrid + Hardware Development Guide for details). + +Example: + ddrmc: ddrmc at 400ae000 { + compatible = "fsl,vf610-ddrmc"; + reg = <0x400ae000 0x1000>; + clocks = <&clks VF610_CLK_DDRMC>; + clock-names = "ddrc"; + fsl,has-cke-reset-pulls; + }
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2.7.2