Freescale MMDC (Multi Mode DDR Controller) driver is supported
since i.MX6Q, but not yet documented, this patch adds binding
doc for MMDC module driver.

Signed-off-by: Anson Huang <anson.hu...@nxp.com>
---
 .../bindings/memory-controllers/fsl/mmdc.txt       | 27 ++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 
Documentation/devicetree/bindings/memory-controllers/fsl/mmdc.txt

diff --git a/Documentation/devicetree/bindings/memory-controllers/fsl/mmdc.txt 
b/Documentation/devicetree/bindings/memory-controllers/fsl/mmdc.txt
new file mode 100644
index 0000000..5b5a224
--- /dev/null
+++ b/Documentation/devicetree/bindings/memory-controllers/fsl/mmdc.txt
@@ -0,0 +1,27 @@
+Freescale Multi Mode DDR controller (MMDC)
+
+Required properties :
+- compatible : should be one of following:
+       for i.MX6Q/i.MX6DL:
+       - "fsl,imx6q-mmdc";
+       for i.MX6SL:
+       - "fsl,imx6sl-mmdc", "fsl,imx6q-mmdc";
+       for i.MX6SLL:
+       - "fsl,imx6sll-mmdc", "fsl,imx6q-mmdc";
+       for i.MX6SX:
+       - "fsl,imx6sx-mmdc", "fsl,imx6q-mmdc";
+       for i.MX6UL/i.MX6ULL/i.MX6ULZ:
+       - "fsl,imx6ul-mmdc", "fsl,imx6q-mmdc";
+       for i.MX7ULP:
+       - "fsl,imx7ulp-mmdc", "fsl,imx6q-mmdc";
+- reg : address and size of MMDC DDR controller registers
+
+Optional properties :
+- clocks : the clock provided by the SoC to access the MMDC registers
+
+Example :
+       mmdc0: mmdc@21b0000 { /* MMDC0 */
+               compatible = "fsl,imx6q-mmdc";
+               reg = <0x021b0000 0x4000>;
+               clocks = <&clks IMX6QDL_CLK_MMDC_P0_IPG>;
+       };
-- 
2.7.4

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