soc/apollolake/acpi: Fill in ACPI MADT table
ACPI MADT tables required to describe the multiprocessor interrupt
routing. Apollolake SOC also have the interrupt override table like
other x86 silicons.
Change-Id: I85976e227963c950aad4476d68581b96e1090559
Signed-off-by: Lance Zhao <lijian.zhao@intel.com>
Reviewed-on: https://review.coreboot.org/13373
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
diff --git a/src/soc/intel/apollolake/acpi.c b/src/soc/intel/apollolake/acpi.c
index 3677477..93602b9 100644
--- a/src/soc/intel/apollolake/acpi.c
+++ b/src/soc/intel/apollolake/acpi.c
@@ -11,6 +11,8 @@
*/
#include <arch/acpi.h>
+#include <arch/ioapic.h>
+#include <arch/smp/mpspec.h>
#include <cpu/x86/smm.h>
#include <soc/acpi.h>
#include <soc/iomap.h>
@@ -25,17 +27,38 @@
return current;
}
-unsigned long acpi_fill_madt(unsigned long current)
-{
- return current;
-}
-
static int acpi_sci_irq(void)
{
int sci_irq = 9;
return sci_irq;
}
+static unsigned long acpi_madt_irq_overrides(unsigned long current)
+{
+ int sci = acpi_sci_irq();
+ uint16_t flags = MP_IRQ_TRIGGER_LEVEL | MP_IRQ_POLARITY_LOW;;
+
+ /* INT_SRC_OVR */
+ current += acpi_create_madt_irqoverride((void *)current, 0, 0, 2, 0);
+
+ /* SCI */
+ current += acpi_create_madt_irqoverride((void *)current, 0, sci, sci, flags);
+
+ return current;
+}
+
+unsigned long acpi_fill_madt(unsigned long current)
+{
+ /* Local APICs */
+ current = acpi_create_madt_lapics(current);
+
+ /* IOAPIC */
+ current += acpi_create_madt_ioapic((void *) current,
+ 2, IO_APIC_ADDR, 0);
+
+ return acpi_madt_irq_overrides(current);
+}
+
void soc_fill_common_fadt(acpi_fadt_t * fadt)
{
const uint16_t pmbase = ACPI_PMIO_BASE;