[PATCH 17/18] Documentation: dt: add Vybrid DDR memory controller bindings

Stefan Agner
2016-03-10T02:16:58Z

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@400ae000 {
+ compatible = "fsl,vf610-ddrmc";
+ reg = <0x400ae000 0x1000>;
+ clocks = <&clks VF610_CLK_DDRMC>;
+ clock-names = "ddrc";
+ fsl,has-cke-reset-pulls;
+ }
--
2.7.2