[POWERPC] linkstation updates

1. Fix RTC type - it is a rs5c372a, not rs5c372b
2. Configure both UART interrupts edge-triggered
3. Add a license header to ls_uart.c
4. Check for running on linkstation in a late_initcall() function. Needed
   for multiplatform builds, even though linkstation doesn't support them
   yet
5. Remove unneeded #include from linkstation.c

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

arch/powerpc/boot/dts/kuroboxHD.dts

@@ -69,7 +69,7 @@ XXXX add flash parts, rtc, ??
 
 			rtc@32 {
 				device_type = "rtc";
-				compatible = "ricoh,rs5c372b";
+				compatible = "ricoh,rs5c372a";
 				reg = <32>;
 			};
 		};
@@ -80,7 +80,7 @@ XXXX add flash parts, rtc, ??
 			reg = <80004500 8>;
 			clock-frequency = <5d08d88>;
 			current-speed = <2580>;
-			interrupts = <9 2>;
+			interrupts = <9 0>;
 			interrupt-parent = <&mpic>;
 		};
 

arch/powerpc/boot/dts/kuroboxHG.dts

@@ -69,7 +69,7 @@ XXXX add flash parts, rtc, ??
 
 			rtc@32 {
 				device_type = "rtc";
-				compatible = "ricoh,rs5c372b";
+				compatible = "ricoh,rs5c372a";
 				reg = <32>;
 			};
 		};
@@ -80,7 +80,7 @@ XXXX add flash parts, rtc, ??
 			reg = <80004500 8>;
 			clock-frequency = <7c044a8>;
 			current-speed = <2580>;
-			interrupts = <9 2>;
+			interrupts = <9 0>;
 			interrupt-parent = <&mpic>;
 		};
 

arch/powerpc/platforms/embedded6xx/linkstation.c

@@ -11,7 +11,6 @@
  */
 
 #include <linux/kernel.h>
-#include <linux/pci.h>
 #include <linux/initrd.h>
 #include <linux/mtd/physmap.h>
 

arch/powerpc/platforms/embedded6xx/ls_uart.c

@@ -1,3 +1,14 @@
+/*
+ * AVR power-management chip interface for the Buffalo Linkstation /
+ * Kurobox Platform.
+ *
+ * Author: 2006 (c) G. Liakhovetski
+ *	 g.liakhovetski@gmx.de
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2.  This program is licensed "as is" without any warranty of
+ * any kind, whether express or implied.
+ */
 #include <linux/workqueue.h>
 #include <linux/string.h>
 #include <linux/delay.h>
@@ -106,6 +117,9 @@ static int __init ls_uarts_init(void)
 	phys_addr_t phys_addr;
 	int len;
 
+	if (!machine_is(linkstation))
+		return 0;
+
 	avr = of_find_node_by_path("/soc10x/serial@80004500");
 	if (!avr)
 		return -EINVAL;