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, 48 insertions, 0 deletions

diff --git a/dts/Bindings/mtd/gpmi-nand.txt b/dts/Bindings/mtd/gpmi-nand.txt
new file mode 100644
index 0000000000..458d596346
--- /dev/null
+++ b/dts/Bindings/mtd/gpmi-nand.txt
@@ -0,0 +1,48 @@
+* Freescale General-Purpose Media Interface (GPMI)
+
+The GPMI nand controller provides an interface to control the
+NAND flash chips. We support only one NAND chip now.
+
+Required properties:
+  - compatible : should be "fsl,<chip>-gpmi-nand"
+  - reg : should contain registers location and length for gpmi and bch.
+  - reg-names: Should contain the reg names "gpmi-nand" and "bch"
+  - interrupts : BCH interrupt number.
+  - interrupt-names : Should be "bch".
+  - dmas: DMA specifier, consisting of a phandle to DMA controller node
+    and GPMI DMA channel ID.
+    Refer to dma.txt and fsl-mxs-dma.txt for details.
+  - dma-names: Must be "rx-tx".
+
+Optional properties:
+  - nand-on-flash-bbt: boolean to enable on flash bbt option if not
+                       present false
+  - fsl,use-minimum-ecc: Protect this NAND flash with the minimum ECC
+                       strength required. The required ECC strength is
+                       automatically discoverable for some flash
+                       (e.g., according to the ONFI standard).
+                       However, note that if this strength is not
+                       discoverable or this property is not enabled,
+                       the software may chooses an implementation-defined
+                       ECC scheme.
+
+The device tree may optionally contain sub-nodes describing partitions of the
+address space. See partition.txt for more detail.
+
+Examples:
+
+gpmi-nand@8000c000 {
+	compatible = "fsl,imx28-gpmi-nand";
+	#address-cells = <1>;
+	#size-cells = <1>;
+	reg = <0x8000c000 2000>, <0x8000a000 2000>;
+	reg-names = "gpmi-nand", "bch";
+	interrupts = <41>;
+	interrupt-names = "bch";
+	dmas = <&dma_apbh 4>;
+	dma-names = "rx-tx";
+
+	partition@0 {
+	...
+	};
+};