PowerPC 85xx board are caused die by Commit: 864b9e6fd76489aab422bac62162f57c52e06ed8(powerpc: Use lwarx/ldarx hint in bit locks)

[Kumar Gala]

On Mar 10, 2010, at 11:20 PM, Kumar Gala wrote:

> 
> On Mar 10, 2010, at 9:20 PM, Andrew Liu wrote:
> 
>> Hi Guys:
>> I have done several experiments on  fsl_8548cds and fsl_p2020rdb, pinpointed the commit: 864b9e6fd76489aab422bac62162f57c52e06ed8(powerpc: Use lwarx/ldarx hint in bit locks)  cause the bootup stalledd.
>> 
>> "
>> Filename 'fsl_8548cds/uImage'.
>> Load address: 0x1000000
>> Loading: #################################################################
>>     #######################################
>> done
>> Bytes transferred = 1526546 (174b12 hex)
>> Speed: 100, full duplex
>> Using eTSEC0 device
>> Filename 'sliu/fsl_8548cds/mpc8548cds.dtb'.
>> Load address: 0xc00000
>> Loading: #
>> done
>> Bytes transferred = 9993 (2709 hex)
>> ## Booting image at 01000000 ...
>>   Image Name:   Linux-2.6.34-rc1-00005-g522dba7
>>   Image Type:   PowerPC Linux Kernel Image (gzip compressed)
>>   Data Size:    1526482 Bytes =  1.5 MB
>>   Load Address: 00000000
>>   Entry Point:  00000000
>>   Verifying Checksum ... OK
>>   Uncompressing Kernel Image ... OK
>>   Booting using the fdt at 0xc00000
>>   Loading Device Tree to 007fb000, end 007fd708 ... OK
>> "
>> 
>> I guess all 85xx or booke board has this issue.
> 
> that's very odd since __PPC_EH should be ignored on PPC32 and thus 85xx.

Found the issue and posted a fix.

- k