[U-Boot] Bare x86 support is merged to u-boot-x86

[Simon Glass]

Hi,

On 27 November 2014 at 10:08, Joakim Tjernlund
<joakim.tjernlund at transmode.se> wrote:
> sjg at google.com wrote on 2014/11/27 17:31:47:
>>
>> Hi Jocke,
>>
>> On 27 November 2014 at 00:59, Joakim Tjernlund
>> <joakim.tjernlund at transmode.se> wrote:
>> >>
>> >> Hi Andy,
>> >>
>> >> On 25 November 2014 at 15:08, Andy Pont <andy.pont at sdcsystems.com>
>> > wrote:
>> >> > Hi Simon (and Bin),
>> >> >
>> >> >> I've applied the remaining x86 patches to u-boot-x86. It runs on
>> >> >> chromebook_link (Pixel) with support for most hardware relevant to
> a
>> >> >> boot loader: SDRAM, SPI, PCI, USB (and USB Ethernet), SATA
> (internal
>> >> >> 32GB SSD), SD card, LCD, UART, keyboard, EC.
>> >> >>
>> >> >> Bin this should be a good base for you to send patches for your
> Atom
>> >> >> platform and I have no major work pending now so should not get in
>> >> >> your way.
>> >> >
>> >> > Thanks for all of your efforts on getting some x86 support into
>> > U-Boot.
>> >> > Hopefully in the new year when project work is back under control I
>> > will
>> >> > have some time to get involved with this - I have almost 20 years
>> > experience
>> >> > porting commercial BIOS and UEFI solutions for x86 hardware and
>> > possibly a
>> >> > bunch of Atom C2750 hardware arriving in January.
>> >>
>> >> Sounds great! I do wonder whether U-Boot could support some UEFI
>> > protocols.
>> >>
>> >> >
>> >> > Other than the list of missing features, what are your long term
>> >> > goals/ambitions/desires with x86 support in U-Boot?  From what I
> can
>> > see on
>> >> > the Coreboot mailing list it isn't the friendliest of people and
>> > doesn't
>> >> > seem to know how to deal with the binary blobs that both Intel and
> AMD
>> > seem
>> >> > to mandate for their chipsets now.
>> >>
>> >> It would be nice to make x86 a first-class U-Boot citizen, meaning
>> >> that it has a reasonable set of features as required by a reasonable
>> >> set of modern boards. That means supporting a few more classes of
>> >> chipsets. Then we get all the features that U-Boot has, hopefully
>> >> without to much of the BIOS-era baggage that x86 often brings along
>> >> (U-Boot is pretty simple to understand). I'm pretty happy that the
>> >> current port fits well into the U-Boot philosophy.
>> >
>> > I would love to see Intel embedded Guthrie CRB design(No graphics and
> 4
>> > GBE eth ports):
>> >   Processor: i7-4702EC
>> >   PCH: Cave Creek (DH8900CC)
>> >
>> > This will be our next board in not too distant future, we do not
>> > have any x86 experience inhouse though :)
>> >
>> > Any chance this could be done?
>>
>> Maybe...do you have a link to Guthrie somewhere? I can't find it. If
>> it is sandybridge? If so then it might be very similar to the existing
>> support.
>
> I don't know Intel well yet but here is something to look at:
> http://se.mouser.com/new/Intel/intel-i7-4700ec-4702ec/
> http://www.mouser.com/ds/2/612/intel-communications-chipset-89xx-series-datasheet-257583.pdf

Well I don't have one of those. If you send me one I might be able to
do something - it looks interesting and seems to have good docs.

Regards,
Simon