arch/x86/ioapic: Promote ioapic_get_sci_pin()

Platform needs to implement this to provide information about SCI IRQ
pin and polarity, to be used for filling in ACPI FADT and MADT entries.

Change-Id: Icea7e9ca4abf3997c01617d2f78f25036d85a52f
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/74337
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>

1 files changed, 9 insertions, 0 deletions

diff --git a/src/southbridge/intel/i82371eb/isa.c b/src/southbridge/intel/i82371eb/isa.c
index c5329f4313..7d86e8a7ab 100644
--- a/src/southbridge/intel/i82371eb/isa.c
+++ b/src/southbridge/intel/i82371eb/isa.c
@@ -67,6 +67,15 @@ static void isa_init(struct device *dev)
 	}
 }
 
+#define ACPI_SCI_IRQ	9
+
+void ioapic_get_sci_pin(u8 *gsi, u8 *irq, u8 *flags)
+{
+	*gsi = ACPI_SCI_IRQ;
+	*irq = ACPI_SCI_IRQ;
+	*flags = MP_IRQ_TRIGGER_LEVEL | MP_IRQ_POLARITY_HIGH;
+}
+
 static void sb_read_resources(struct device *dev)
 {
 	struct resource *res;