[coreboot] [VERY IMPORTANT] Announcement regarding Apollo Lake Coreboot building

[Aaron Durbin]

On Wed, Feb 22, 2017 at 1:12 AM, Zoran Stojsavljevic
<zoran.stojsavljevic at gmail.com> wrote:
> Hello to community,
>
> I finally, after 3 days of additional very hard struggle, found out why I
> have (while I am in the last stage of building CBFS) nonsense while building
> APL-I Coreboot coreboot.rom?!
>
> Please, read carefully this announcement.
>
> For last three days I came to hard stop because of this failure:
>
> Just quick look into the final failure (all passed, but last stage - IFD
> failed):
>
>     Compile IFDTOOL
>     HOSTCC     util/ifdfake/ifdfake
>     DD         Adding Intel Firmware Descriptor
>     IFDTOOL    Unlocking Management Engine
> File build/coreboot.pre is 8388608 bytes
> No Flash Descriptor found in this image
> src/southbridge/intel/common/firmware/Makefile.inc:50: recipe for target
> 'add_intel_firmware' failed
> make: *** [add_intel_firmware] Error 1
> [user at localhost coreboot]$
>
> At first, I suspect that culprit my .config file, but I have checked it
> several times (maybe > dozen), and I could NOT find any problem with it
> (except minor doubts).
>
> Then I switched to inspect -southbridge- setup, but these is none, since
> (simplified explanation/view) APL-I is SoC.
>
> The next phase was to inspect
> src/southbridge/intel/common/firmware/Makefile.inc , but there (although my
> make scripting is rusty) I could NOT find any problem...
>
> Finally, somewhere around 2:00 AM I noticed/determined the root cause of the
> problem: the util/ifdtool/ifdtool.c, line:
>           if (*(uint32_t *) (image + i) == 0x0FF0A55A) {
>
> YET another INTEL IOTG PED hidden road bomb: the latest APL-I FSP:
> APL-I_FSP/ApolloLakeFspBinPkg/FspBin/ApolloLakeFsp.fd does NOT have pattern
> 0x0FF0A55A embedded in it (I have checked with HxD WIN tool).

So this device isn't supporting SPI boot? If so, then it's not
surprise that there's no SPI descriptor. And you didn't add one it
seems.
>
> Then, modifying the C f-n static fdbar_t *find_fd(char *image, int size),
> finally I've got success! :-(
>
> Hello Martin,
>
> Thank you for unselfish help.
>
> Best Regards,
> Zoran Stojsavljevic
>
>
> --
> coreboot mailing list: coreboot at coreboot.org
> https://www.coreboot.org/mailman/listinfo/coreboot