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x86: crownbay: Enable graphics support

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Enable graphics support on Intel Crown Bay board With the help of
vgabios for Intel TunnelCreek IGD. Tested with an external LVDS
panel connected to X4 connector and SDVO adapter connected to X9
connector on the board.

Signed-off-by: Jian Luo <jian.luo4@boschrexroth.de>
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Bin Meng 2015-07-06 16:31:35 +08:00 • committed by Simon Glass
parent 9e3a7c9bac
commit 7aaff9bf81
3 changed files with 23 additions and 14 deletions
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20
doc/README.x86
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@ -113,6 +113,10 @@ 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 [6], using the AMI MMTool [7]. 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
@ -254,7 +258,7 @@ If you want to check both consoles, use '-serial stdio'.
CPU Microcode
-------------
Modern CPUs usually require a special bit stream called microcode [6] to be
Modern CPUs usually require a special bit stream called microcode [8] to be
loaded on the processor after power up in order to function properly. U-Boot
has already integrated these as hex dumps in the source tree.
@ -265,9 +269,9 @@ Additional application processors (AP) can be brought up by U-Boot. In order to
have an SMP kernel to discover all of the available processors, U-Boot needs to
prepare configuration tables which contain the multi-CPUs information before
loading the OS kernel. Currently U-Boot supports generating two types of tables
for SMP, called Simple Firmware Interface (SFI) [7] and Multi-Processor (MP) [8]
tables. The writing of these two tables are controlled by two Kconfig options
GENERATE_SFI_TABLE and GENERATE_MP_TABLE.
for SMP, called Simple Firmware Interface (SFI) [9] and Multi-Processor (MP)
[10] tables. The writing of these two tables are controlled by two Kconfig
options GENERATE_SFI_TABLE and GENERATE_MP_TABLE.
Driver Model
------------
@ -372,6 +376,8 @@ References
[3] http://www.coreboot.org/~stepan/pci8086,0166.rom
[4] http://www.intel.com/content/www/us/en/embedded/design-tools/evaluation-platforms/atom-e660-eg20t-development-kit.html
[5] http://www.intel.com/fsp
[6] http://en.wikipedia.org/wiki/Microcode
[7] http://simplefirmware.org
[8] http://www.intel.com/design/archives/processors/pro/docs/242016.htm
[6] http://www.intel.com/content/www/us/en/secure/intelligent-systems/privileged/e6xx-35-b1-cmc22211.html
[7] http://www.ami.com/products/bios-uefi-tools-and-utilities/bios-uefi-utilities/
[8] http://en.wikipedia.org/wiki/Microcode
[9] http://simplefirmware.org
[10] http://www.intel.com/design/archives/processors/pro/docs/242016.htm