[PATCHv3 RESEND 1/3] Documentation: dt: memory: ti-emif: add edac support under emif

[Tero Kristo <t-kristo@ti.com>]

Certain revisions of the TI EMIF IP contain ECC support in them. Reflect
this in the DT binding.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Rob Herring <robh+dt@kernel.org>
---
Just resending this patch, missed adding devicetree list on this previously
and it got lost.

 .../devicetree/bindings/memory-controllers/ti/emif.txt   | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/memory-controllers/ti/emif.txt b/Documentation/devicetree/bindings/memory-controllers/ti/emif.txt
index 0db6047..f56a347 100644
--- a/Documentation/devicetree/bindings/memory-controllers/ti/emif.txt
+++ b/Documentation/devicetree/bindings/memory-controllers/ti/emif.txt
@@ -3,12 +3,16 @@
 EMIF - External Memory Interface - is an SDRAM controller used in
 TI SoCs. EMIF supports, based on the IP revision, one or more of
 DDR2/DDR3/LPDDR2 protocols. This binding describes a given instance
-of the EMIF IP and memory parts attached to it.
+of the EMIF IP and memory parts attached to it. Certain revisions
+of the EMIF IP controller also contain optional ECC support, which
+corrects one bit errors and detects two bit errors.
 
 Required properties:
 - compatible	: Should be of the form "ti,emif-<ip-rev>" where <ip-rev>
   is the IP revision of the specific EMIF instance.
 		  For am437x should be ti,emif-am4372.
+		  For dra7xx should be ti,emif-dra7xx.
+		  For k2x family, should be ti,emif-keystone.
 
 - phy-type	: <u32> indicating the DDR phy type. Following are the
   allowed values
@@ -42,6 +46,10 @@ Optional properties:
 - hw-caps-temp-alert	: Have this property if the controller
   has capability for generating SDRAM temperature alerts
 
+- interrupts		: A list of interrupt specifiers for memory
+  controller interrupts, if available. Required for EMIF instances
+  that support ECC.
+
 Example:
 
 emif1: emif@0x4c000000 {
@@ -54,3 +62,9 @@ emif1: emif@0x4c000000 {
 	hw-caps-ll-interface;
 	hw-caps-temp-alert;
 };
+
+emif1: emif@4c000000 {
+	compatible = "ti,emif-dra7";
+	reg = <0x4c000000 0x200>;
+	interrupts = <GIC_SPI 105 IRQ_TYPE_LEVEL_HIGH>;
+};
-- 
1.9.1

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