Hi Igor, On Thu, Aug 13, 2015 at 7:00 PM, Igor Stoppa <igor.sto...@intel.com> wrote: > * Explicitly list the targets supported in each section of the > instructions from the x86 README. > > * Drop references to 'raw mode', in favor of 'bare mode'. > > Signed-off-by: Igor Stoppa <igor.sto...@intel.com> > --- > doc/README.x86 | 24 ++++++++++++++---------- > 1 file changed, 14 insertions(+), 10 deletions(-) > > diff --git a/doc/README.x86 b/doc/README.x86 > index af2459c..20865a5 100644 > --- a/doc/README.x86 > +++ b/doc/README.x86 > @@ -18,15 +18,17 @@ U-Boot supports running as a coreboot [1] payload on x86. > So far only Link > work with minimal adjustments 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 Link, QEMU x86 targets and all > -Intel boards support running U-Boot 'bare metal'. > +U-Boot also supports booting directly from x86 reset vector, without > coreboot. > +In this case, known as bare mode, fom the fact that it runs on the
fom? > +'bare metal', U-Boot acts like a BIOS replacement. Do you intentionally leave the remaining line (till 80col) blank? > +Currently Link, QEMU x86 targets and all Intel boards support running U-Boot > +'bare metal'. > > As for loading an OS, U-Boot supports directly booting a 32-bit or 64-bit > Linux kernel as part of a FIT image. It also supports a compressed zImage. > > -Build Instructions > ------------------- > +Build Instructions for U-Boot as coreboot payload > +------------------------------------------------- > Building U-Boot as a coreboot payload is just like building U-Boot for > targets > on other architectures, like below: > > @@ -48,6 +50,8 @@ Change the 'Board configuration file' and 'Board Device > Tree Source (dts) file' > to point to a new board. You can also change the Cache-As-RAM (CAR) related > settings here if the default values do not fit your new board. > > +Build Instructions for U-Boot as BIOS replacement (bare mode) > +------------------------------------------------------------- > Building a ROM version of U-Boot (hereafter referred to as u-boot.rom) is a > little 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 > @@ -87,7 +91,7 @@ Now you can build U-Boot and obtain u-boot.rom: > $ make chromebook_link_defconfig > $ make all > > -Intel Crown Bay specific instructions: > +Intel Crown Bay specific instructions for bare mode: > > U-Boot support of Intel Crown Bay board [4] relies on a binary blob called > Firmware Support Package [5] to perform all the necessary initialization > steps > @@ -122,7 +126,7 @@ Now you can build U-Boot and obtain u-boot.rom > $ make crownbay_defconfig > $ make all > > -Intel Minnowboard Max instructions: > +Intel Minnowboard Max instructions for bare mode: > > This uses as FSP as with Crown Bay, except it is for the Atom E3800 series. > Download this and get the .fd file (BAYTRAIL_FSP_GOLD_003_16-SEP-2014.fd at > @@ -189,7 +193,7 @@ Offset Description Controlling config > Overall ROM image size is controlled by CONFIG_ROM_SIZE. > > > -Intel Galileo instructions: > +Intel Galileo instructions for bare mode: Please also update the line for "Chromebook Link". > > Only one binary blob is needed for Remote Management Unit (RMU) within Intel > Quark SoC. Not like FSP, U-Boot does not call into the binary. The binary is > @@ -252,8 +256,8 @@ At present it seems that for Minnowboard Max, coreboot > does not pass through > the video information correctly (it always says the resolution is 0x0). This > works correctly for link though. > > -Test with QEMU > --------------- > +Test with QEMU for bare mode > +---------------------------- > QEMU is a fancy emulator that can enable us to test U-Boot without access to > a real x86 board. Please make sure your QEMU version is 2.3.0 or above test > U-Boot. To launch QEMU with u-boot.rom, call QEMU as follows: > -- Regards, Bin _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
