soc/intel/meteorlake: Set DTT PCI device IRQ to INT_A/PIRQ_A
The Dynamic Tuning Technology (DTT) device IRQ is not programmable and
is INT_A/PIRQ_A (IRQ 16).
Reference: Meteor Lake U/H and U Type4 External Design Specification
External Design Document (657165)
TEST=Linux driver successfully uses IRQ 16 on rex. Without this patch
it was binding IRQ 18 but interrupts were going to IRQ 16.
Change-Id: I2cbb9dd41f27c40a29346be325bb9c46d1061afb
Signed-off-by: Jeremy Compostella <jeremy.compostella@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/78953
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>
diff --git a/src/soc/intel/meteorlake/fsp_params.c b/src/soc/intel/meteorlake/fsp_params.c
index 5ec9cf4..c3c47854 100644
--- a/src/soc/intel/meteorlake/fsp_params.c
+++ b/src/soc/intel/meteorlake/fsp_params.c
@@ -63,7 +63,9 @@
{
.slot = PCI_DEV_SLOT_DPTF,
.fns = {
- ANY_PIRQ(PCI_DEVFN_DPTF),
+ /* Dynamic Tuning Technology (DTT) device IRQ is not
+ programmable and is INT_A/PIRQ_A (IRQ 16) */
+ FIXED_INT_PIRQ(PCI_DEVFN_DPTF, PCI_INT_A, PIRQ_A),
},
},
{