Re: [coreboot] Asus AM1I-A

[Elisenda Cuadros]

Hi Gergely,

Thank you for your config. Now I have coreboot + SeaBIOS perfectly working.

Console speed is now "normal" :-)

These are the changes between the two configs:

-------------

diff config_original.txt config_Gergely.txt
23c23
< # CONFIG_USE_BLOBS is not set
---
> CONFIG_USE_BLOBS=y

101c101
< CONFIG_UART_FOR_CONSOLE=0
---
> CONFIG_UART_FOR_CONSOLE=1

150c150
< CONFIG_POST_DEVICE=y
---
> # CONFIG_POST_DEVICE is not set

210c210
< CONFIG_TTYS0_BASE=0x3f8
---
> CONFIG_TTYS0_BASE=0x2f8

428,429d427
< # CONFIG_PCI_OPTION_ROM_RUN_REALMODE is not set
< # CONFIG_PCI_OPTION_ROM_RUN_YABEL is not set
431d428
< # CONFIG_VGA_TEXT_FRAMEBUFFER is not set
556c553
< # Serial port base address = 0x3f8
---
> # Serial port base address = 0x2f8

581,583d577
< CONFIG_POST_DEVICE_NONE=y
< # CONFIG_POST_DEVICE_LPC is not set
< # CONFIG_POST_DEVICE_PCI_PCIE is not set

--------------

I made some tweaks to the configuration, added VGA output before 
payload, a nice bootsplash, etc..

Other considerations:

VGA Device PCI IDs are 1002,9830 (The default 1002,9836 does not get 
output).

Memory has to be located firstly on second slot (yellow DIMM_A2). If not 
you get AGESA_FATAL_ERROR. I only have one module.

Please, find attached a working config.txt and console.log. Coreboot 
revision is 4.7-294-g2db6fbc47b.

If you verify these changes are working for you is it possible to change 
the defaults in Kconfig?

Thank you very much.

Best regards,

-- Eli

On 11/02/18 00:07, Gergely Kiss wrote:
> Strange, the log you shared looked less verbose to me than expected 
> but seems like I was wrong. Anyway, you might find an example on a 
> full debug log here [1].
>
> I have a small build script I use to build coreboot for my board, 
> please find it attached.
>
> The version currently running on my box is 4.6-2554-ga1b4c94.
>
> [1] https://www.coreboot.org/Board:asus/am1i-a#Bootlog
>
> On 10 February 2018 at 23:18, Elisenda Cuadros <[e-mail] 
> > wrote:
> Thank you for your kind reply Gergely.
>
> I think the cable is not the problem, I have been using it for
> years and it's intact.
>
> I am using a usb dongle but not a cheap one. Tomorrow I will try
> with another cable and a real COM port. Just to be 100% sure.
>
> Console is fast at the very first time (just the "normal") but
> after two seconds it becomes extremely slow.
>
> Please, can you say me which is the git revision you are using?
>
> The console log I attached is from a SPEW debug level, not
> corresponding with the config.. I tried several configs today :-) .
>
> Is it possible to share your config with me?
>
> Best regards,
>
> Eli
>
>
> On 10/02/18 21:44, Gergely Kiss wrote:
> > Hi Eli,
> >
> > I've been using Coreboot on my board for several weeks, it is
> > serving as an HTPC running 24/7 and it's working perfectly stable
> > which suggests the firmware should be free of bugs. It is likely
> > that you are facing some configuration or hardware issue here.
> >
> > I didn't see any issues with the serial output while working with
> > the board once the SuperIO chip started to work. Make sure the
> > cable you use is intact and try to attach it to another machine.
> > At the time I was working with my board, I used a Dell Port
> > Replicator with a native COM port so I could use a standard
> > null-modem cable and it was working flawlessly. In case you use a
> > USB serial adapter, try replacing it or attach the serial cable
> > directly to a COM port if you have one available.
> >
> > Also, please enable debug_level=Spew as it seems the console log
> > you attached comes from a less verbose setting and therefore it's
> > not as useful as it should be.
> >
> > Note that the VBIOS image is executed by SeaBIOS which means you
> > won't see anything on your display until the payload is executed.
> >
> > If all else fails, you can still attach a POST debug module to
> > the LPC header of the board [1] which can help a lot to find out
> > where the boot process hangs.
> >
> > Feel free to contact me if you need some more help or
> > information, I'm happy to assist!
> >
> > Regards,
> > Gergely
> >
> > [1] https://www.youtube.com/watch?v=aGGqsWx3-1c
> > <https://www.youtube.com/watch?v=aGGqsWx3-1c>
> >
> > On 10 February 2018 at 18:17, Elisenda Cuadros <[e-mail]
> > <mailto:[e-mail]>> wrote:
> >
> >     Hello,
> >
> >     I'm trying to use Coreboot in an Asus AM1I-A board recently
> >     ported by Gergely Kiss (thank you!).
> >
> >     I am using the default config settings and added vga rom
> >     extracted with UEFITool from the vendor bios.
> >
> >     After flashing and booting I get no output from vga.
> >
> >     Serial console is extremely slow too (30 minutes to write the
> >     log)
> >
> >     I attach the coreboot console log, config and cbfs.txt.
> >
> >     Any hints?
> >
> >     Thanks in advance.
> >
> >     Best regards,
> >
> >     -- Eli