T1040QDS warm reboot

Scott Wood scottwood at freescale.com
Sat Aug 9 04:15:14 EST 2014


On Fri, 2014-08-08 at 11:35 +0530, Vineeth wrote:
> Was wondering how "reboot" works from linux kernel for t1040qds.
> 
> 
> When checked, @arch/powerpc/sysdev/fsl_soc.c 
> 
> __setup_rstcr, an ioremap is done for the offset 0xb0 and writes 0x2
> to that to reboot the machine. and it works properly.
> 
> 
> when checked the reference manual for T1040QDS, it was given that
> RST_CTL is at offset 0x40 and the RST is the 7th bit of same. 

RSTCR is an SoC register (see DCFG_CCSR_RSTCR in T1040RM), not something
implemented by the board.  Are you perhaps looking at some QIXIS
register?

-Scott





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