sb/intel/i82801ix: Factor out common `acpi_fill_madt`

It is the same for all three mainboards.

Change-Id: Ic5786bcc29e2549d6fc935d60c699c1cab84b237
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50027
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

1 files changed, 32 insertions, 0 deletions

diff --git a/src/southbridge/intel/i82801ix/madt.c b/src/southbridge/intel/i82801ix/madt.c
new file mode 100644
index 0000000000..f3a7da5d1e
--- /dev/null
+++ b/src/southbridge/intel/i82801ix/madt.c
@@ -0,0 +1,32 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <acpi/acpi.h>
+#include <arch/ioapic.h>
+#include <arch/smp/mpspec.h>
+
+unsigned long acpi_fill_madt(unsigned long current)
+{
+	/* Local APICs */
+	current = acpi_create_madt_lapics(current);
+
+	/* IOAPIC */
+	current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *) current,
+				2, IO_APIC_ADDR, 0);
+
+	/* LAPIC_NMI */
+	current += acpi_create_madt_lapic_nmi((acpi_madt_lapic_nmi_t *)
+				current, 0,
+				MP_IRQ_POLARITY_HIGH |
+				MP_IRQ_TRIGGER_EDGE, 0x01);
+	current += acpi_create_madt_lapic_nmi((acpi_madt_lapic_nmi_t *)
+				current, 1, MP_IRQ_POLARITY_HIGH |
+				MP_IRQ_TRIGGER_EDGE, 0x01);
+
+	/* INT_SRC_OVR */
+	current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)
+		 current, 0, 0, 2, MP_IRQ_POLARITY_HIGH | MP_IRQ_TRIGGER_EDGE);
+	current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)
+		 current, 0, 9, 9, MP_IRQ_POLARITY_HIGH | MP_IRQ_TRIGGER_LEVEL);
+
+	return current;
+}