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authorLance Zhao <lijian.zhao@intel.com>2015-11-16 18:33:21 -0800
committerMartin Roth <martinroth@google.com>2016-04-11 18:19:34 +0200
commit2fc82d699d23cf3136a25e06972f90a9fc4909ab (patch)
tree11de2e09adaea5d3a761bb52bcf66b939654b4d8 /src
parent186b9de95d8dfd6a944879915729ea75b7f3448a (diff)
downloadcoreboot-2fc82d699d23cf3136a25e06972f90a9fc4909ab.tar.xz
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>
Diffstat (limited to 'src')
-rw-r--r--src/soc/intel/apollolake/acpi.c31
1 files changed, 27 insertions, 4 deletions
diff --git a/src/soc/intel/apollolake/acpi.c b/src/soc/intel/apollolake/acpi.c
index 3677477f40..93602b9e8c 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>
@@ -25,15 +27,36 @@ unsigned long acpi_fill_mcfg(unsigned long current)
return current;
}
-unsigned long acpi_fill_madt(unsigned long 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;
}
-static int acpi_sci_irq(void)
+unsigned long acpi_fill_madt(unsigned long current)
{
- int sci_irq = 9;
- return sci_irq;
+ /* 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)