Re: Linuxppc-embedded Digest, Vol 24, Issue 42

Re: Linuxppc-embedded Digest, Vol 24, Issue 42

[jimmy liu]

The following code works on linux 2.6

__volatile__ unsigned char dummy;
u32 msr;
    
local_irq_disable(); 

    
((cpm2_map_t *)CPM_MAP_ADDR)->im_clkrst.car_rmr = 1;  
 /* Checkstop Reset enable */
    
/* Interrupts and MMU off */
__asm__ __volatile__ ("mfmsr    %0":"=r" (msr):);
    
msr &= ~(MSR_ME | MSR_EE | MSR_IR | MSR_DR);
__asm__ __volatile__ ("mtmsr    %0"::"r" (msr)); 
    
dummy = ((cpm2_map_t
*)CPM_MAP_ADDR)->im_clkrst.res[0];
    
printk("Restart failed.\n");
for (;;);


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>    1. RE: reboot on PQ2FADS board. (Liu Dave-r63238)
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>
----------------------------------------------------------------------
> 
> Message: 1
> Date: Fri, 18 Aug 2006 09:45:21 +0800
> From: "Liu Dave-r63238" <DaveLiu@freescale.com>
> Subject: RE: reboot on PQ2FADS board.
> To: "Zhimin \(Jimmy\) Liu" <zliu@edgar-online.com>,
> 	<linuxppc-embedded@ozlabs.org>
> Message-ID:
> 
>
<995B09A8299C2C44B59866F6391D26350CDA9C@zch01exm21.fsl.freescale.net>
> Content-Type: text/plain; charset="us-ascii"
> 
> Hi Liu,
>  
> please try this..
>  
>      u32 msr;
>      
>      volatile immap_t *immap = (immap_t *)
> IMAP_ADDR;
>      
>      
>      /* Interrupts and MachineCheck off */
>      __asm__ __volatile__ ("mfmsr    %0":"=r"
> (msr):);
>      
>      msr &= ~(MSR_ME | MSR_EE);
>      __asm__ __volatile__ ("mtmsr    %0"::"r"
> (msr)); 
>      
>      immap->im_clkrst.car_rmr = 1;    /* Checkstop
> Reset enable */
> 
>      immap->resxxx = 0;        /* please find one
> immap illegal address
>                                    access it, trig
> reset */
>      for (;;);
> 
> 
> 
> ________________________________
> 
> 	From:
>
linuxppc-embedded-bounces+daveliu=freescale.com@ozlabs.org
>
[mailto:linuxppc-embedded-bounces+daveliu=freescale.com@ozlabs.org]
> On
> Behalf Of Zhimin (Jimmy) Liu
> 	Sent: Friday, August 18, 2006 1:00 AM
> 	To: linuxppc-embedded@ozlabs.org
> 	Subject: reboot on PQ2FADS board.
> 	
> 	
> 
> 	Did you sovlve the problem? I have same issue for
> the  PQ2FADS
> board. 
> 
> 	jimmy 
> 
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> End of Linuxppc-embedded Digest, Vol 24, Issue 42
> *************************************************
> 


Jimmy Zhimin Liu
mailto:jimmyzhmliu@yahoo.com
www.edgar-online.com
11200 Rockville Pike, Suite 301
Rockville, MD 20874
(301)287-0339(O)
(202)499-6822(H)

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