mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-26 03:48:58 +09:00
44 lines
2.0 KiB
ReStructuredText
44 lines
2.0 KiB
ReStructuredText
![]() |
.. SPDX-License-Identifier: GPL-2.0+
|
||
|
.. sectionauthor:: Bin Meng <bmeng.cn@gmail.com>
|
||
|
|
||
|
Crown Bay CRB
|
||
|
=============
|
||
|
|
||
|
U-Boot support of Intel `Crown Bay`_ board relies on a binary blob called
|
||
|
Firmware Support Package (`FSP`_) to perform all the necessary initialization
|
||
|
steps as documented in the BIOS Writer Guide, including initialization of the
|
||
|
CPU, memory controller, chipset and certain bus interfaces.
|
||
|
|
||
|
Download the Intel FSP for Atom E6xx series and Platform Controller Hub EG20T,
|
||
|
install it on your host and locate the FSP binary blob. Note this platform
|
||
|
also requires a Chipset Micro Code (CMC) state machine binary to be present in
|
||
|
the SPI flash where u-boot.rom resides, and this CMC binary blob can be found
|
||
|
in this FSP package too.
|
||
|
|
||
|
* ./FSP/QUEENSBAY_FSP_GOLD_001_20-DECEMBER-2013.fd
|
||
|
* ./Microcode/C0_22211.BIN
|
||
|
|
||
|
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.
|
||
|
|
||
|
As for the video ROM, you need manually extract it from the Intel provided
|
||
|
BIOS for Crown Bay `here`_, using the AMI `MMTool`_. Check PCI option
|
||
|
ROM ID 8086:4108, extract and save it as vga.bin in the board directory.
|
||
|
|
||
|
Now you can build U-Boot and obtain u-boot.rom::
|
||
|
|
||
|
$ make crownbay_defconfig
|
||
|
$ make all
|
||
|
|
||
|
.. _`Crown Bay`: http://www.intel.com/content/www/us/en/embedded/design-tools/evaluation-platforms/atom-e660-eg20t-development-kit.html
|
||
|
.. _`FSP`: http://www.intel.com/fsp
|
||
|
.. _`here`: http://www.intel.com/content/www/us/en/secure/intelligent-systems/privileged/e6xx-35-b1-cmc22211.html
|
||
|
.. _`MMTool`: http://www.ami.com/products/bios-uefi-tools-and-utilities/bios-uefi-utilities/
|