summaryrefslogtreecommitdiff
path: root/src
diff options
context:
space:
mode:
authorMichael van der Westhuizen <rmikey@fb.com>2018-09-05 10:26:44 -0700
committerPhilipp Deppenwiese <zaolin.daisuki@gmail.com>2018-09-06 16:31:10 +0000
commit401f8c59bd955d9b435ebab06fa1a3d0dd138765 (patch)
tree6b24210bdfc87b9a6bccc0caf5bb0bf7110cf9ff /src
parent1c8f699758cab20ef839a3fe023fb7bd6373eebc (diff)
qemu-q35: Use the TSC for udelay
Use the TSC for delays on q35, ensuring that the TSC delay code is included in the correct stages when selected. Tested on qemu-35 and wedge-100s (for no regressions). Change-Id: I3f8368509807974bfcf2a0fcff7a4aa21adf47ed Signed-off-by: Michael van der Westhuizen <rmikey@fb.com> Reviewed-on: https://review.coreboot.org/28526 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Patrick Rudolph <siro@das-labor.org> Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
Diffstat (limited to 'src')
-rw-r--r--src/cpu/qemu-x86/Kconfig1
-rw-r--r--src/cpu/qemu-x86/Makefile.inc1
2 files changed, 2 insertions, 0 deletions
diff --git a/src/cpu/qemu-x86/Kconfig b/src/cpu/qemu-x86/Kconfig
index ea2bc46051..ab8e1a9919 100644
--- a/src/cpu/qemu-x86/Kconfig
+++ b/src/cpu/qemu-x86/Kconfig
@@ -20,3 +20,4 @@ config CPU_QEMU_X86
select ARCH_ROMSTAGE_X86_32
select ARCH_RAMSTAGE_X86_32
select SMP
+ select UDELAY_TSC
diff --git a/src/cpu/qemu-x86/Makefile.inc b/src/cpu/qemu-x86/Makefile.inc
index b5f8369181..288eea67f5 100644
--- a/src/cpu/qemu-x86/Makefile.inc
+++ b/src/cpu/qemu-x86/Makefile.inc
@@ -16,3 +16,4 @@ ramstage-y += qemu.c
subdirs-y += ../x86/mtrr
subdirs-y += ../x86/lapic
subdirs-y += ../x86/smm
+subdirs-y += ../x86/tsc