arm/dts: Add support for OMAP4 PandaBoard

Based on the original omap4-panda.dts file from Manju.
http://www.spinics.net/lists/linux-omap/msg55836.html

Add memory information and a default bootargs to allow
a boot from RAMDISK.

Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Cc: G, Manjunath Kondaiah <manjugk@ti.com>

diff --git a/arch/arm/boot/dts/omap4-panda.dts b/arch/arm/boot/dts/omap4-panda.dts
new file mode 100644 (file)
index 0000000..c702657
--- /dev/null
+++ b/arch/arm/boot/dts/omap4-panda.dts
@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+/dts-v1/;
+
+/include/ "omap4.dtsi"
+
+/ {
+       model = "TI OMAP4 PandaBoard";
+       compatible = "ti,omap4-panda", "ti,omap4430", "ti,omap4";
+
+       /*
+        * Since the initial device tree board file does not create any
+        * devices (MMC, network...), the only way to boot is to provide a
+        * ramdisk.
+        */
+       chosen {
+               bootargs = "root=/dev/ram0 rw console=ttyO2,115200n8 initrd=0x81600000,20M ramdisk_size=20480 no_console_suspend debug";
+       };
+
+       memory {
+               device_type = "memory";
+               reg = <0x80000000 0x40000000>; /* 1 GB */
+       };
+};