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x86: Add queensbay fsp patch information in README.x86

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The FSP release version 001 for Intel Queensbay has a bug which
could cause random endless loop during the FspInit call. This bug
was published by Intel although Intel did not describe any details.
Describe this information in the x86 doc so that U-Boot Queensbay
support is invulnerable.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Bin Meng 2015-03-05 11:21:03 +08:00 committed by Simon Glass
parent 0eb9dc76e2
commit 83d9712e70
1 changed files with 7 additions and 0 deletions
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doc/README.x86
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@ -105,6 +105,13 @@ in this FSP package too.
Rename the first one to fsp.bin and second one to cmc.bin and put them in the
board directory.
Note the FSP release version 001 has a bug which could cause random endless
loop during the FspInit call. This bug was published by Intel although Intel
did not describe any details. We need manually apply the patch to the FSP
binary using any hex editor (eg: bvi). Go to the offset 0x1fcd8 of the FSP
binary, change the following five bytes values from orginally E8 42 FF FF FF
to B8 00 80 0B 00.
Now you can build U-Boot and obtain u-boot.rom
$ make crownbay_defconfig