Nico Huber submitted this change.
soc/{apl,glk}: Allow to select the primary graphics device
Allow to select the primary graphics device between the IGD and the
external PCIe GPU depending on the ONBOARD_VGA_IS_PRIMARY config.
The option sets the priority only. This means that if a high priority
is set for an external PCI device and it is not connected/not enabled,
then the device with a lower priority will be used, in our case it is
IGD.
TEST = Set PRIMARY_PCI and boot Linux on the Kontron mAL10 [1] with
the miniPCIe video adapter on the Silicon Motion SM750 controller. As
a result, the display connected to an external GPU device shows the
Tianocore logo + setup menu and the desktop.
[1] https://review.coreboot.org/c/coreboot/+/39133
Change-Id: Idcd117217cf412ee0722aff52db4b3c8ec2a226c
Signed-off-by: Maxim Polyakov <max.senia.poliak@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39374
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Mario Scheithauer <mario.scheithauer@siemens.com>
---
M src/soc/intel/apollolake/romstage.c
1 file changed, 14 insertions(+), 0 deletions(-)
diff --git a/src/soc/intel/apollolake/romstage.c b/src/soc/intel/apollolake/romstage.c
index 13a55dc..1c92b89 100644
--- a/src/soc/intel/apollolake/romstage.c
+++ b/src/soc/intel/apollolake/romstage.c
@@ -229,6 +229,19 @@
}
}
+static void soc_gpu_init_params(FSPM_UPD *mupd)
+{
+ enum {
+ GPU_PRIMARY_IGD = 2,
+ GPU_PRIMARY_PCI = 3,
+ };
+ /* Select primary GPU device */
+ if (CONFIG(ONBOARD_VGA_IS_PRIMARY) && is_devfn_enabled(SA_DEVFN_IGD))
+ mupd->FspmConfig.PrimaryVideoAdaptor = GPU_PRIMARY_IGD;
+ else
+ mupd->FspmConfig.PrimaryVideoAdaptor = GPU_PRIMARY_PCI;
+}
+
static void soc_memory_init_params(FSPM_UPD *mupd)
{
#if CONFIG(SOC_INTEL_GEMINILAKE)
@@ -268,6 +281,7 @@
check_full_retrain(mupd);
fill_console_params(mupd);
+ soc_gpu_init_params(mupd);
if (CONFIG(SOC_INTEL_GEMINILAKE))
soc_memory_init_params(mupd);
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