[coreboot] USB to Serial Converters

[David Hendricks]

Hi Zahra,
Yes, I used the 6-pin serial port header. Also, make sure the microcode
header(s) you include correspond to the CPUID of your processor. The E3825
and E3826 use different microcode headers, so M0130679901.h will not work
for you.

Please keep the coreboot mailing list CC'd. I haven't done anything with
Minnowboard in several months and others may be able to help.

On Thu, Aug 2, 2018 at 5:01 PM, zahra rahimkhani <zrahimkhani2014 at gmail.com>
wrote:

> Hi David
>
> Thank you for your help.
> I extract your file and got M0130679901.h as Microcode but my board does
> not work it did not show anything.
> I use E3825.
> In previous notes, you told "My guess is that you don't have
> CONFIG_ENABLE_BUILTIN_COM1 selected
> (under "Chipset"), which is an option you have to set in addition to
> the stuff under "Console."
> but in your config, you had not enabled this option.
> Could you help me with this and Did you use   6 pins that are separated on
> board for console port?
> I do not know what is my problem .it did not show anything log.
>
>
>
> Thank you for your time.
> Zahra
>
>
>
> On Wed, Aug 1, 2018 at 2:04 AM David Hendricks <david.hendricks at gmail.com>
> wrote:
>
>> Hi Zahra,
>> That header may be out of date
>> (https://mail.coreboot.org/pipermail/coreboot/2017-August/084800.html).
>>
>> I had to manually download the microcode file corresponding to my
>> processor SKU from Intel. Use the link I sent you earlier to download
>> Baytrail_FSP_Gold4.tgz and see if the microcode headers included in
>> that tarball match your processor. The Atom on my Minnowboard Turbot
>> has a CPUID of 30679, so I needed to use M0130679901.h.
>>
>> (note that the Minnowboard Max uses an Atom E3825, while the Turbot
>> uses an E3826 dual-core SoC or E3845 quad-core SoC)
>>
>> On Mon, Jul 30, 2018 at 2:36 AM, zahra rahimkhani
>> <zrahimkhani2014 at gmail.com> wrote:
>> >
>> > Dear David
>> >
>> > for Microcode file I just it from coreboot source from this path
>> > coreboot/3rdparty/blobs/soc/intel/baytrail/microcode_blob.h
>> >
>> > Is that good ?
>> >
>> > Thanks ,
>> >
>> >
>> > On Sun, Jul 29, 2018 at 1:18 PM zahra rahimkhani <
>> zrahimkhani2014 at gmail.com>
>> > wrote:
>> >>
>> >> Hi David,
>> >>
>> >> Thank you very much for your guide.
>> >>
>> >> I got this comments on my config and changes it based on your config.
>> >> But I can not see any thing on output.
>> >> Could you tell me  which Uart pins do you use on Minnowboard max
>> >>
>> >> I used it 6 pin that are separately on board .
>> >>
>> >> I would be grateful if you guide me .
>> >> I got my new config here .
>> >> https://paste.flashrom.org/view.php?id=3097
>> >>
>> >> Also , Could you tell me what is this parameter
>> >> CONFIG_UART_FOR_CONSOLE=0
>> >> and
>> >> CONFIG_DRIVERS_UART_8250IO
>> >>
>> >> Cheers!
>> >> Zahra
>> >>
>> >>
>> >>
>> >> On Fri, Jul 27, 2018 at 11:06 AM David Hendricks
>> >> <david.hendricks at gmail.com> wrote:
>> >>>
>> >>> Hi Zahra,
>> >>>
>> >>>> I got my config file here
>> >>>> https://paste.flashrom.org/view.php?id=3096
>> >>>
>> >>>
>> >>> Thanks, that helps a lot!
>> >>>
>> >>> The last config that I tested is
>> >>> https://review.coreboot.org/cgit/board-status.git/plain/
>> intel/minnowmax/4.6-1358-g49d117c69f/2017-09-06T06_53_39Z/config.txt
>> >>>
>> >>> If you diff my config and yours, it seems you have several options
>> >>> disabled which I think you should try enabling:
>> >>> CONFIG_HAVE_IFD_BIN
>> >>> CONFIG_HAVE_ME_BIN
>> >>> CONFIG_TTYS0_LCS
>> >>> CONFIG_DRIVERS_UART_8250IO
>> >>> CONFIG_IFD_BIN_PATH
>> >>> CONFIG_ME_BIN_PATH
>> >>> CONFIG_LOCK_MANAGEMENT_ENGINE
>> >>> CONFIG_DRIVERS_UART
>> >>> CONFIG_CONSOLE_SERIAL
>> >>> CONFIG_CONSOLE_SERIAL_115200
>> >>>
>> >>> You can find these by using the search function in `make menuconfig`.
>> >>> Press '/' and type a Kconfig option.
>> >>>
>> >>>> I would be grateful if you check my config and tell me what is
>> ifdtool
>> >>>> in Coreboot and how
>> >>>> I  use it.
>> >>>> and How I find  Intel ME file for my board and GBE for a network on
>> my
>> >>>> board.
>> >>>
>> >>>
>> >>> ifdtool is a tool for viewing and manipulating an Intel Flash
>> Descriptor
>> >>> binary. The flash descriptor is a 4KB data structure at the start of
>> the
>> >>> ROM's address space (offset 0x000000-0x000fff).
>> >>>
>> >>> To build it: `make -C util/ifdtool`
>> >>> To run it: `util/ifdtool/ifdtool`
>> >>>
>> >>> You'll probably want to use the '-x' option to extract the individual
>> >>> modules from an existing Minnowboard Max firmware image (e.g. the
>> UEFI image
>> >>> that comes with the board). That will give you the ME and GBE files.
>> >>>
>> >
>>
>
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