Machine check in 4xx ethernet driver

Felix Radensky felix at embedded-sol.com
Mon Mar 9 21:53:25 EST 2009




Josh Boyer-4 wrote:
> 
> On Mon, Mar 09, 2009 at 12:47:02AM -0700, Felix Radensky wrote:
>>
>>Hi,
>>
>>I'm getting machine check exception when trying to dump
>>emac registers on 405EX Kilauea board. The kernel is 2.6.29-rc7
>>The problem seems not new, I can reproduce it on 2.6.25 Denx kernel
> 
> I've not looked at what that code path does, but the EMAC regs are
> in DCR space, not MMIO.  Using memcpy_fromio there seems odd.
> 
> 

At least on 405EX MAL registers are in DCR space, but EMAC and RGMII
ones are in MMIO space.

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