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3 commits

Author SHA1 Message Date
Miao Yan
a3b15a0556 x86: qemu: setup PM IO base for ACPI in southbridge 
Enable ACPI IO space for piix4 (for pc board) and ich9 (for q35 board)

Signed-off-by: Miao Yan <yanmiaobest@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
 2016-01-28 13:53:30 +08:00
Bin Meng
4be2f42bbc x86: qemu: Adjust VGA initialization 
As VGA option rom needs to run at C segment, although QEMU PAM emulation
seems to only guard E/F segments, for correctness, move VGA initialization
after PAM decode C/D/E/F segments.

Also since we already tested QEMU targets to differentiate I440FX and Q35
platforms, change to locate the VGA device via hardcoded b.d.f instead of
dynamic search for its vendor id & device id pair.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
 2015-06-04 02:39:40 -06:00
Bin Meng
0fcb7acf67 x86: qemu: Enable legacy IDE I/O ports decode 
QEMU always decode legacy IDE I/O ports on PIIX chipset. However Linux ata_piix
driver does sanity check to see whether legacy ports decode is turned on.
To make Linux ata_piix driver happy, turn on the decode via IDE_TIMING register.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
 2015-06-04 02:39:39 -06:00