Commit graph

9 commits

Author SHA1 Message Date
Simon Glass
8a388085c7 x86: Correct ifdtool microcode calculation
This currently assumes that U-Boot resides at the start of ROM. Update
it to remove this assumption.

Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
2015-01-13 07:24:58 -08:00
Simon Glass
31eca69727 x86: ifdtool: Add support for early microcode access
Some Intel CPUs use an 'FSP' binary blob which provides an inflexible
means of starting up the CPU. One result is that microcode updates can only
be done before RAM is available and therefore parsing of the device tree
is impracticle.

Worse, the addess of the microcode update must be stored in ROM since a
pointer to its start address and size is passed to the 'FSP' blob. It is
not possible to perform any calculations to obtain the address and size.

To work around this, ifdtool is enhanced to work out the address and size of
the first microcode update it finds in the supplied device tree. It then
writes these into the correct place in the ROM. U-Boot can then start up
the FSP correctly.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2014-12-18 17:26:05 -07:00
Simon Glass
65851fcec3 x86: ifdtool: Use a structure for the file/address list
Rather than two independent arrays, use a single array of a suitable
structure. Also add a 'type' member since we will shortly add additional
types.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2014-12-18 17:26:04 -07:00
Simon Glass
fa8d3b00f9 x86: ifdtool: Display filename when file errors are reported
When a file is missing it helps to know which file. Update the error message
to print this information.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2014-12-18 17:26:04 -07:00
Simon Glass
7e8ffa4ed8 x86: ifdtool: Correct a debug() missing parameter
This is missing a parameter. Fix it to avoid a warning when debug is
enabled.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2014-12-18 17:26:04 -07:00
Simon Glass
7dfb172d67 x86: ifdtool: Separate out filenames for -D and -i
To allow these options to be specified together, separate them out.

Change-Id: Ib93f11cd51eb3302127f4c82936ff2b44c88d5a2
Signed-off-by: Simon Glass <sjg@chromium.org>
2014-12-13 22:32:04 -07:00
Bin Meng
673ed2f8c2 tools/ifdtool: Support writing multiple files (-w) simultaneously
Currently ifdtool only supports writing one file (-w) at a time.
This looks verbose when generating u-boot.rom for x86 targets.
This change allows at most 16 files to be written simultaneously.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
2014-12-13 22:32:04 -07:00
Simon Glass
c03c951b06 x86: ifdtool: Allow creation of an empty ROM
Allow an empty ROM to be created, without needing to provide a descriptor.
The descriptor is not needed on some x86 boards.

Signed-off-by: Simon Glass <sjg@chromium.org>
2014-11-21 07:34:05 +01:00
Simon Glass
cd392fe8a0 x86: Add ifdtool for working with Intel Flash Descriptor ROM images
Newer Intel chips require a Management Engine which requires a particular
format for the SPI flash that contains the boot loader. Add a tool that
supports creating and modifying these ROM images.

This tool is from Chrome OS but has been cleaned up to use U-Boot style
and to add comments. A few features have been added also.

Signed-off-by: Simon Glass <sjg@chromium.org>
2014-11-21 07:24:11 +01:00