Add devicetree source files as of Linux-3.15-rc2

This adds the Linux dts files to barebox. The dts files are
generated from Ian Campbells device-tree-rebasing.git:

git://xenbits.xen.org/people/ianc/device-tree-rebasing.git

The dts are found in dts/ in the barebox repository and
will be updated from upstream regularly, probably for each upstream
-rc.

To keep the synchronization with upstream easy no changes to
the original files are allowed under dts/. Instead changes to
upstream dts files will be done using overlays in arch/$ARCH/dts/.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 21 insertions, 0 deletions

diff --git a/dts/Bindings/mtd/nand.txt b/dts/Bindings/mtd/nand.txt
new file mode 100644
index 0000000000..b53f92e252
--- /dev/null
+++ b/dts/Bindings/mtd/nand.txt
@@ -0,0 +1,21 @@
+* MTD generic binding
+
+- nand-ecc-mode : String, operation mode of the NAND ecc mode.
+  Supported values are: "none", "soft", "hw", "hw_syndrome", "hw_oob_first",
+  "soft_bch".
+- nand-bus-width : 8 or 16 bus width if not present 8
+- nand-on-flash-bbt: boolean to enable on flash bbt option if not present false
+
+- nand-ecc-strength: integer representing the number of bits to correct
+		     per ECC step.
+
+- nand-ecc-step-size: integer representing the number of data bytes
+		      that are covered by a single ECC step.
+
+The ECC strength and ECC step size properties define the correction capability
+of a controller. Together, they say a controller can correct "{strength} bit
+errors per {size} bytes".
+
+The interpretation of these parameters is implementation-defined, so not all
+implementations must support all possible combinations. However, implementations
+are encouraged to further specify the value(s) they support.