Patchwork [U-Boot,v0] p1_p2_rdb: to set SQW/INT pin of RTC as INT line

login
register
mail settings
Submitter Priyanka Jain
Date Oct. 25, 2010, 9:22 a.m.
Message ID <1287998573-626-1-git-send-email-Priyanka.Jain@freescale.com>
Download mbox | patch
Permalink /patch/71919/
State Superseded
Delegated to: Kumar Gala
Headers show

Comments

Priyanka Jain - Oct. 25, 2010, 9:22 a.m.
p1_p2_rdb : 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>
---
 board/freescale/p1_p2_rdb/p1_p2_rdb.c |    1 +
 include/configs/P1_P2_RDB.h           |    1 +
 2 files changed, 2 insertions(+), 0 deletions(-)
Kumar Gala - Nov. 11, 2010, 12:20 p.m.
On Oct 25, 2010, at 4:22 AM, Priyanka Jain wrote:

> p1_p2_rdb : 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>
> ---
> board/freescale/p1_p2_rdb/p1_p2_rdb.c |    1 +
> include/configs/P1_P2_RDB.h           |    1 +
> 2 files changed, 2 insertions(+), 0 deletions(-)

applied to 85xx

- k

Patch

diff --git a/board/freescale/p1_p2_rdb/p1_p2_rdb.c b/board/freescale/p1_p2_rdb/p1_p2_rdb.c
index fae31f2..0043184 100644
--- a/board/freescale/p1_p2_rdb/p1_p2_rdb.c
+++ b/board/freescale/p1_p2_rdb/p1_p2_rdb.c
@@ -156,6 +156,7 @@  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;
 }
 
diff --git a/include/configs/P1_P2_RDB.h b/include/configs/P1_P2_RDB.h
index cff0ed3..ba0c724 100644
--- a/include/configs/P1_P2_RDB.h
+++ b/include/configs/P1_P2_RDB.h
@@ -344,6 +344,7 @@  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