28 Oct
2010
28 Oct
'10
11:21 a.m.
On 10/27/2010 05:36 PM, Shawn.Guo@freescale.com wrote:
From: Shawn Guo shawn.gsc@gmail.com
The mx51evk u-boot has an issue that system will get reset every 2 hours.
MC13892 has an inside charge timer which expires in 120 minutes. If ICHRG and CHGAUTOB are not set properly, this timer expiration will get system power recycled.
Since mx51evk has no Li-Ion battery on board, the patch sets ICHRG in externally powered mode and sets CHGAUTOB bit to avoid automatic charging, so that system will not get reset by this timer expiration.
The patch also corrects the bit field definition of register 48 (Charger 0) per latest MC13892 Reference Manual.
Signed-off-by: Shawn Guo shawn.gsc@gmail.com
Applied to u-boot-imx, thanks.
Best regards, Stefano Babic
--
=====================================================================
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: +49-8142-66989-0 Fax: +49-8142-66989-80 Email: office@denx.de
=====================================================================