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Date: Tue, 02 Nov 2004 09:36:04 -0800
From: Manish Lachwani <mlachwani@mvista.com>
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To: Thomas Petazzoni <thomas.petazzoni@enix.org>
Cc: linux-mips@linux-mips.org
Subject: Re: Custom kernel crashes
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Hello Thomas,

Quick suggestion since I dont know all the details: Can you increase the 
  size of the space mapped to say 16 MB (some larget value than 256 KB) 
and check if the bus error repeats?

#define NPP_BOARD_INTERNAL_SRAM_SIZE (16 *1024 * 1024)

Thanks
Manish Lachwani



Thomas Petazzoni wrote:
> Hello,
> 
> Manish Lachwani a écrit :
> 
>> What are these values: NPP_BOARD_INTERNAL_SRAM_BASE, 
>> NPP_BOARD_INTERNAL_SRAM_END and NPP_BOARD_INTERNAL_SRAM_BASE.
> 
> 
> #define NPP_BOARD_INTERNAL_SRAM_BASE 0xfe000000UL
> #define NPP_BOARD_INTERNAL_SRAM_SIZE (256*1024)
> #define NPP_BOARD_INTERNAL_SRAM_END  \
>         (NPP_BOARD_INTERNAL_SRAM_BASE + NPP_BOARD_INTERNAL_SRAM_SIZE)
> 
> Do you think it's a problem related to the SRAM ?
> 
>> Also, what is ENTRYLO() defined as?
> 
> 
> static inline unsigned long ENTRYLO(unsigned long paddr)
> {
>         return ((paddr & PAGE_MASK) |
>                (_PAGE_PRESENT | __READABLE | __WRITEABLE | _PAGE_GLOBAL |
>                 _CACHE_UNCACHED)) >> 6;
> }
> 
> This code is taken from the jaguar_atx setup.c file.
> 
> Thanks,
> 
> Thomas