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mb/google/zork: Unmap FCH IO-APIC PCI interrupts 

Now that the _PRT generates a GNB IO-APIC routing table we no longer
need to route the PCI interrupts through the FCH IO-APIC. This change
unmaps the IRQs since they are no longer used.

BUG=b:170595019
TEST=Boot with `pci=nomsi amd_iommu=off` and verify /proc/interrupts

Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: I3467934bfcac14311505bec49a12652490554e6a
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48669
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nikolai Vyssotski <nikolai.vyssotski@amd.corp-partner.google.com>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
This commit is contained in:
Raul E Rangel 2020-12-15 14:56:46 -07:00 committed by Patrick Georgi
parent 9882dde03f
commit 55cf7088fd
1 changed files with 8 additions and 8 deletions
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16
src/mainboard/google/zork/mainboard.c
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@ -66,14 +66,14 @@ static const struct fch_irq_routing {
uint8_t pic_irq_num;
uint8_t apic_irq_num;
} fch_pirq[] = {
{ PIRQ_A, 6, 16 },
{ PIRQ_B, 13, 17 },
{ PIRQ_C, 14, 18 },
{ PIRQ_D, 15, 19 },
{ PIRQ_E, 15, 20 },
{ PIRQ_F, 14, 21 },
{ PIRQ_G, 13, 22 },
{ PIRQ_H, 6, 23 },
{ PIRQ_A, 6, PIRQ_NC },
{ PIRQ_B, 13, PIRQ_NC },
{ PIRQ_C, 14, PIRQ_NC },
{ PIRQ_D, 15, PIRQ_NC },
{ PIRQ_E, 15, PIRQ_NC },
{ PIRQ_F, 14, PIRQ_NC },
{ PIRQ_G, 13, PIRQ_NC },
{ PIRQ_H, 6, PIRQ_NC },
{ PIRQ_SCI, 9, 9 },
{ PIRQ_EMMC, 5, 5 },