[coreboot] Help on debug, add a new mainboard.

[tturne at codeaurora.org]

On 2017-04-06 07:34, Kory Maincent wrote:
> Hi everyone,
> 
> I would like to learn how to add a new mainboard to coreboot.
> I have a Fujitsu D2990-A1, with chipset intel H61, sandybridge and a
> Superio Nuvoton NCT5571D.
> I use the autoport tools to generate the files.
> I know that I have to change them to add new configuration but I don't
> really know how.
> Can you help me to get started with the debug part or to give me some
> advice about it.

Hi Kory,
I started with Coreboot for an ARMv8 target last Fall, with no prior 
exposure.
This outlines the steps I followed, close as I recall.

1) clone the repo, build the tools and build a "safe" target (e.g. one 
of the emulator, qemu)
2) find a target board that uses same chipset as your target and build
3) copy mainboard/ directory to new one with your codename for a board
4) change config and function names, etc. to reflect new board
5) stub-out what needs to be stubbed out to get a build to complete

At this point you have a new sandbox for your board based on an existing 
board that uses same chipset.
There are Kconfig files in the soc/ or cpu/ directory for your chipset 
and the mainboard/ directory you created.
Typically you won't change the soc/ or cpu/ Kconfig, but you should be 
aware of what the settings are.
Most of your configuration should occur within the Kconfig file in your 
new mainboard/ directory.

Hope this helps.
Cheers,
T.mike

> 
> I have downloaded the Embedde Firmware Solution eBook to begin with.
> 
> Thanks
> 
> Kory
> 
> This is my debug output
> 
> USB
> coreboot-coreboot-unknown Wed Apr  5 15:19:21 UTC 2017 romstage
> starting...
> Setting up static southbridge registers... done.
> Disabling Watchdog reboot... done.
> Setting up static northbridge registers... done.
> Graphics not supported by this CPU/chipset.
> Back from sandybridge_early_initialization()
> SMBus controller enabled.
> CPU id(206a7): Intel(R) Core(TM) i7-2600 CPU @ 3.40GHz
> AES supported, TXT supported, VT supported
> PCH type: H61, device id: 1c5c, rev id 5
> Intel ME early init
> WARNING: ME has bad firmware
> ME: Requested 63MB UMA
> Starting native Platform init
> CBFS: 'Master Header Locator' located CBFS at [200100:3fffc0)
> CBFS: Locating 'mrc.cache'
> CBFS: Found @ offset 1fec0 size 10000
> find_current_mrc_cache_local: No valid MRC cache found.
>   Row    addr bits  : 15
>   Column addr bits  : 10
>   Number of ranks   : 2
>   DIMM Capacity     : 4096 MB
>   CAS latencies     : 6 7 8 9 10
>   tCKmin            :   1.500 ns
>   tAAmin            :  13.125 ns
>   tWRmin            :  15.000 ns
>   tRCDmin           :  13.125 ns
>   tRRDmin           :   6.000 ns
>   tRPmin            :  13.125 ns
>   tRASmin           :  36.000 ns
>   tRCmin            :  49.125 ns
>   tRFCmin           : 160.000 ns
>   tWTRmin           :   7.500 ns
>   tRTPmin           :   7.500 ns
>   tFAWmin           :  30.000 ns
> channel[1] rankmap = 0x3
> Starting RAM training (0).
> PLL busy... done in 10 us
> MCU frequency is set at : 666 MHz
> Selected DRAM frequency: 666 MHz
> Minimum  CAS latency   : 9T
> Selected CAS latency   : 9T
> Selected CWL latency   : 7T
> Selected tRCD          : 9T
> Selected tRP           : 9T
> Selected tRAS          : 24T
> Selected tWR           : 10T
> Selected tFAW          : 20T
> Selected tRRD          : 4T
> Selected tRTP          : 5T
> Selected tWTR          : 5T
> Selected tRFC          : 107T
> Done dimm mapping
> Update PCI-E configuration space:
> PCI(0, 0, 0)[a0] = 0
> PCI(0, 0, 0)[a4] = 1
> PCI(0, 0, 0)[bc] = 8a800000
> PCI(0, 0, 0)[a8] = 71900000
> PCI(0, 0, 0)[ac] = 1
> PCI(0, 0, 0)[b8] = 80000000
> PCI(0, 0, 0)[b0] = 80800000
> PCI(0, 0, 0)[b4] = 80800000
> PCI(0, 0, 0)[7c] = 7f
> PCI(0, 0, 0)[70] = fc100000
> PCI(0, 0, 0)[74] = 0
> PCI(0, 0, 0)[78] = fc100c00
> Done memory map
> Done io registers
> Done jedec reset
> Done MRS commands
> t123: 1912, 9120, 500
> ME: FW Partition Table      : BAD
> ME: Bringup Loader Failure  : YES
> ME: Firmware Init Complete  : YES
> ME: Manufacturing Mode      : YES
> ME: Boot Options Present    : YES
> ME: Update In Progress      : YES
> ¡8—d$
> ME: Current Operation State : M0 without UMA but with error
> ME: Current Operation Mode  : Reset
> ME: Error Code              : <NULL>
> ME: Progress Phase          : Soft Temporary Disable
> ME: Power Management Event  : uKernel Phase
> ME: Progress Phase State    : Unknown 0xff
> ME: Wrong mode : 15
> ME: HFS error : 15
> ME: FWS2: 0xffffffff
> ME:  Bist in progress: 0x1
> ME:  ICC Status      : 0x3
> ME:  Invoke MEBx     : 0x1
> ME:  CPU replaced    : 0x1
> ME:  MBP ready       : 0x1
> ME:  MFS failure     : 0x1
> ME:  Warm reset req  : 0x1
> ME:  CPU repl valid  : 0x1
> ME:  (Reserved)      : 0x3
> ME:  FW update req   : 0x1
> ME:  (Reserved)      : 0xf
> ME:  Current state   : 0xff
> ME:  Current PM event: 0xf
> ME:  Progress code   : 0xf
> CPU was replaced & warm reset required...