sb,soc/intel: Set IOAPIC max entries before APIC ID
This allows to replace set_ioapic_id() call with setup_ioapic()
that also clears redirection table entries.
Change-Id: I854f19c997a96bcdccb11a0906431e3291788cb6
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/55308
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
diff --git a/src/southbridge/intel/lynxpoint/lpc.c b/src/southbridge/intel/lynxpoint/lpc.c
index ef75d2f..72f6d80 100644
--- a/src/southbridge/intel/lynxpoint/lpc.c
+++ b/src/southbridge/intel/lynxpoint/lpc.c
@@ -35,14 +35,15 @@
pci_write_config16(dev, LPC_IBDF,
PCH_IOAPIC_PCI_BUS << 8 | PCH_IOAPIC_PCI_SLOT << 3);
- set_ioapic_id(VIO_APIC_VADDR, 0x02);
-
/* affirm full set of redirection table entries ("write once") */
/* PCH-LP has 40 redirection entries */
if (pch_is_lp())
ioapic_set_max_vectors(VIO_APIC_VADDR, 40);
else
ioapic_lock_max_vectors(VIO_APIC_VADDR);
+
+ set_ioapic_id(VIO_APIC_VADDR, 0x02);
+
}
static void pch_enable_serial_irqs(struct device *dev)