p1_p2_rdb: to set SQW/INT pin of RTC as INT line

SQW/INT pin in RTC can be used for generating square wave(by default) or
as interrupt line.  U-boot is registering this pin for interrupts.
Configuring SQW/INT bit as interrupt line during board initialization
to avoid spurious interrupts generated by square wave.

Signed-off-by: Priyanka Jain <Priyanka.Jain@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

board/freescale/p1_p2_rdb/p1_p2_rdb.c

@@ -1,5 +1,5 @@
 /*
- * Copyright 2009 Freescale Semiconductor, Inc.
+ * Copyright 2009-2010 Freescale Semiconductor, Inc.
  *
  * See file CREDITS for list of people who contributed to this
  * project.
@@ -33,6 +33,7 @@
 #include <tsec.h>
 #include <vsc7385.h>
 #include <netdev.h>
+#include <rtc.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -156,6 +157,7 @@ int board_early_init_r(void)
 	set_tlb(1, flashbase, CONFIG_SYS_FLASH_BASE_PHYS,
 			MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
 			0, flash_esel, BOOKE_PAGESZ_16M, 1);
+	rtc_reset();
 	return 0;
 }
 

include/configs/P1_P2_RDB.h

@@ -350,6 +350,7 @@ extern unsigned long get_board_sys_clk(unsigned long dummy);
 #define CONFIG_SYS_EEPROM_BUS_NUM	1
 
 #define CONFIG_RTC_DS1337
+#define CONFIG_SYS_RTC_DS1337_NOOSC
 #define CONFIG_SYS_I2C_RTC_ADDR                0x68
 /*
  * General PCI