[coreboot] Atom platform porting problem.

[Joseph Smith]

On 11/30/2009 09:39 PM, Scott.Hsiao wrote:
> Hello! Joseph,
> Yes, the process stopped at same place everytime.
> Completed log is attatched.
>
> Scott Hsiao
>
> -----Original Message-----
> From: Joseph Smith [mailto:joe at settoplinux.org]
> Sent: Tuesday, December 01, 2009 10:31 AM
> To: Scott.Hsiao
> Cc: coreboot at coreboot.org
> Subject: Re: [coreboot] Atom platform porting problem.
>
> On 11/30/2009 03:29 AM, Scott.Hsiao wrote:
>> I am porting coreboot to a Intel Atom based mainboard which
>> incorperate atom (N270) + 945GSE + it8718f.
>> The initial progress of north bridge seems okay but I got error in the
>> "dev_initialize" function.
>> Here are the partial output:
>> ....
>> Initializing devices...
>> Root Device init
>> APIC_CLUSTER: 0 init
>> malloc Enter, size 91, free_mem_ptr 0013b998 malloc 0013b998
>> start_eip=0x0000a000, offset=0x00100000, code_size=0x0000005b
>> Initializing SMM handler... ... pmbase = 0x0500
>> SMI_STS: PM1
>> PM1_STS: WAK PWRBTN TMROF
>> GPE0_STS:
>> TCO_STS:
>> ... raise SMI#
>> Initializing CPU #0
>> CPU: vendor Intel device 106c2
>> CPU: family 06, model 1c, stepping 02
>> Using generic cpu ops (good)
>> Enabling cache
>> microcode_info: sig = 0x000106c2 pf=0x00000004 rev = 0x00000000
>> CPU: Intel(R) Core(TM) CPU N270 @ 1.60GHz.
>> Setting fixed MTRRs(0-88) Type: UC
>> Setting fixed MTRRs(0-16) Type: WB
>> Setting fixed MTRRs(24-88) Type: WB
>> DONE fixed MTRRs
>> call enable_fixed_mtrr()
>> Setting variable MTRR 0, base: 0MB, range: 512MB, type WB
>> ADDRESS_MASK_HIGH=0xf Unexpected Exception: 13 @ 10:001025e9 - Halting
>> Code: 0 eflags: 00010002
>> eax: e0000800 ebx: 0000000f ecx: 00000201 edx: 0000000f
>> edi: e0000000 esi: 00000000 ebp: 0000000f esp: 00139df4
>
> Hello Scott,
> Could you send me your whole boot log?
>
> Are you getting the Unexpected Exception errors in the same place every
> boot? Or, is it in a different spot each time?
>
>
Wow it looks like you are getting pretty far in the boot process, 
congrats :-)  I think there may be something wrong with how the MTRRs 
are setup. I think you are supposed to have more than one variable MTRR?

My suggestion would be to get inteltool working on the board, and then 
you can tell what the MTRRs look like with the vender bios and compare 
it with your code. I hope that helps.

-- 
Thanks,
Joseph Smith
Set-Top-Linux
www.settoplinux.org