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| author | Felix Held <felix.held@amd.corp-partner.google.com> | 2021-10-23 00:43:07 +0200 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2021-10-26 20:01:43 +0000 |
| commit | cefee5e40f4e7567b25bce9df786a0fbf594a268 (patch) | |
| tree | ef1ee0c4a96721df7625811a56e6a2977b7717ab /src/soc/intel/quark | |
| parent | 5c78ff9b4a0eeb6332868f6df1ad7361d176706b (diff) | |
| download | coreboot-cefee5e40f4e7567b25bce9df786a0fbf594a268.tar.gz coreboot-cefee5e40f4e7567b25bce9df786a0fbf594a268.tar.bz2 coreboot-cefee5e40f4e7567b25bce9df786a0fbf594a268.zip | |
soc/intel/quark/Kconfig: don't unselect CPU_X86_LAPIC
The Intel Quark SoC does have a LAPIC on its x86 CPU core, so we should
select CPU_X86_LAPIC. This will additionally include the Makefile from
cpu/x86/lapic. Since none of AP_IN_SIPI_WAIT, LEGACY_SMP_INIT and
UDELAY_LAPIC gets selected, only the boot_cpu.c and lapic.c targets will
be added to the build. Since SMP isn't set, adding the boot_cpu.c target
won't change the resulting binary of a timeless build, since the only
function inside will be removed by the compiler's pre-processor in the
!SMP case. So the only thing that will change the resulting binary is
the addition of the lapic.c target. From this target only the function
cpu_get_lapic_addr will be used which overrides the weak implementation
in acpi/acpi.c. The call in arch/x86/mpspec.c can be ignored, since
GENERATE_MP_TABLE isn't selected. So this change will result in the
LAPIC address in the MADT being changed from 0 to to LAPIC_DEFAULT_BASE.
Since the documentation of the Quark SoC mentions that it has a LAPIC on
its one x86 core, this should work.
TEST=None
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I2f163bd608f0548abb0e8de90843d2a796b8ef6c
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58550
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Diffstat (limited to 'src/soc/intel/quark')
| -rw-r--r-- | src/soc/intel/quark/Kconfig | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/src/soc/intel/quark/Kconfig b/src/soc/intel/quark/Kconfig index bf9d475cd52f..1a9bfef9429d 100644 --- a/src/soc/intel/quark/Kconfig +++ b/src/soc/intel/quark/Kconfig @@ -24,10 +24,6 @@ config CPU_SPECIFIC_OPTIONS select USE_MARCH_586 select NO_SMM -config CPU_X86_LAPIC - bool - default n - ##### # Debug serial output # The following options configure the debug serial port |