[U-Boot] [PATCH 25/25] x86: Add a README.x86 for U-Boot on x86 support

[Pavel Machek]

Hi!

> +Status
> +------
> +U-Boot supports running as a coreboot [1] payload on x86. So far only link
> +(Chromebook pixel) has been tested, but it should work with minimal
> adjustments

Link is codeword for Chromebook Pixel? I'd write "Chromebook Pixel
(Link)" if so.

> +on other x86 boards since coreboot deals with most of the low-level details.
> +
> +U-Boot also supports booting directly from x86 reset vector without coreboot,
> +aka raw support or bare support. Currently Google Chromebook link and Intel

Should this me "Chromebook Pixel"?


> +Building rom version U-Boot (hereafter referred to as u-boot.rom) is a little

"ROM version of" ?

> +bit tricky, as generally it requires several binary blobs which are not shipped
> +in the U-Boot source tree. Due to this reason, the u-boot.rom build is not
> +turned on by default in the U-Boot source tree. Firstly, you need turn it on
> +by uncommenting the following line in the main U-Boot Makefile:
> +
> +# ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom
> +
> +Google Chromebook link specific instructions:

"link -> Pixel"?

> +Firstly, you need the following binary blobs:

Firstly->First

> +You can get these binary blobs by:
> +
> +$ git clone http://review.coreboot.org/p/blobs.git
> +$ cd blobs
> +
> +Find the following files:
> +
> +* ./mainboard/google/link/descriptor.bin
> +* ./mainboard/google/link/me.bin
> +* ./northbridge/intel/sandybridge/systemagent-ivybridge.bin
> +
> +The 3rd one should be renamed to mrc.bin.

Should there be instruction where to put those files? Perhaps a script
doing this and getting ROM would be nice?

> +As for the video ROM, you can get it here [2].
> +
> +Now you can build U-Boot and obtain u-boot.rom:

> +$ make chromebook_link_defconfig
> +$ make all
> +
> +Intel Crown Bay specific instructions:
> +
> +U-Boot support of Intel Crown Bay board [3] relies on a binary blob called
> +Firmware Support Package [4] to perform all the necessary initialization steps
> +as documented in the BIOS Writer Guide including initialization of
> the CPU,

"Guide, "


> +Downalod the Intel FSP for Atom E6xx series and Platform Controller

-> Download.

Thanks,
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html