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, 52 insertions, 0 deletions

diff --git a/dts/Bindings/net/stmmac.txt b/dts/Bindings/net/stmmac.txt
new file mode 100644
index 0000000000..80c1fb8bfb
--- /dev/null
+++ b/dts/Bindings/net/stmmac.txt
@@ -0,0 +1,52 @@
+* STMicroelectronics 10/100/1000 Ethernet driver (GMAC)
+
+Required properties:
+- compatible: Should be "snps,dwmac-<ip_version>" "snps,dwmac"
+	For backwards compatibility: "st,spear600-gmac" is also supported.
+- reg: Address and length of the register set for the device
+- interrupt-parent: Should be the phandle for the interrupt controller
+  that services interrupts for this device
+- interrupts: Should contain the STMMAC interrupts
+- interrupt-names: Should contain the interrupt names "macirq"
+  "eth_wake_irq" if this interrupt is supported in the "interrupts"
+  property
+- phy-mode: See ethernet.txt file in the same directory.
+- snps,reset-gpio 	gpio number for phy reset.
+- snps,reset-active-low boolean flag to indicate if phy reset is active low.
+- snps,reset-delays-us  is triplet of delays
+	The 1st cell is reset pre-delay in micro seconds.
+	The 2nd cell is reset pulse in micro seconds.
+	The 3rd cell is reset post-delay in micro seconds.
+- snps,pbl		Programmable Burst Length
+- snps,fixed-burst	Program the DMA to use the fixed burst mode
+- snps,mixed-burst	Program the DMA to use the mixed burst mode
+- snps,force_thresh_dma_mode	Force DMA to use the threshold mode for
+				both tx and rx
+- snps,force_sf_dma_mode	Force DMA to use the Store and Forward
+				mode for both tx and rx. This flag is
+				ignored if force_thresh_dma_mode is set.
+
+Optional properties:
+- resets: Should contain a phandle to the STMMAC reset signal, if any
+- reset-names: Should contain the reset signal name "stmmaceth", if a
+	reset phandle is given
+- max-frame-size: See ethernet.txt file in the same directory
+- clocks: If present, the first clock should be the GMAC main clock,
+  further clocks may be specified in derived bindings.
+- clocks-names: One name for each entry in the clocks property, the
+  first one should be "stmmaceth".
+
+Examples:
+
+	gmac0: ethernet@e0800000 {
+		compatible = "st,spear600-gmac";
+		reg = <0xe0800000 0x8000>;
+		interrupt-parent = <&vic1>;
+		interrupts = <24 23>;
+		interrupt-names = "macirq", "eth_wake_irq";
+		mac-address = [000000000000]; /* Filled in by U-Boot */
+		max-frame-size = <3800>;
+		phy-mode = "gmii";
+		clocks = <&clock>;
+		clock-names = "stmmaceth">;
+	};