summaryrefslogtreecommitdiff
path: root/arch/x86/include/asm/arch-qemu
AgeCommit message (Collapse)Author
2015-06-04x86: qemu: Adjust VGA initializationBin Meng
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>
2015-06-04x86: qemu: Enable legacy IDE I/O ports decodeBin Meng
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>
2015-06-04x86: qemu: Turn on legacy segments decodeBin Meng
By default the legacy segments C/D/E/F do not decode to system RAM. Turn on the decode via Programmable Attribute Map (PAM) registers so that we can write configuration tables in the F segment. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
2015-06-04x86: Support QEMU x86 targetsBin Meng
This commit introduces the initial U-Boot support for QEMU x86 targets. U-Boot can boot from coreboot as a payload, or directly without coreboot. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org> Merged in patch 'x86: qemu: Add CMD_NET to qemu-x86_defconfig https://patchwork.ozlabs.org/patch/479745/