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path: root/src/soc/intel/broadwell/lpc.c
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Diffstat (limited to 'src/soc/intel/broadwell/lpc.c')
-rw-r--r--src/soc/intel/broadwell/lpc.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/src/soc/intel/broadwell/lpc.c b/src/soc/intel/broadwell/lpc.c
index d1c42423ae..8e7f4de931 100644
--- a/src/soc/intel/broadwell/lpc.c
+++ b/src/soc/intel/broadwell/lpc.c
@@ -49,6 +49,10 @@ static void pch_enable_ioapic(struct device *dev)
{
u32 reg32;
+ /* Assign unique bus/dev/fn for I/O APIC */
+ 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") */
@@ -67,6 +71,16 @@ static void pch_enable_ioapic(struct device *dev)
io_apic_write(VIO_APIC_VADDR, 0x03, 0x01);
}
+static void enable_hpet(struct device *dev)
+{
+ size_t i;
+
+ /* Assign unique bus/dev/fn for each HPET */
+ for (i = 0; i < 8; ++i)
+ pci_write_config16(dev, LPC_HnBDF(i),
+ PCH_HPET_PCI_BUS << 8 | PCH_HPET_PCI_SLOT << 3 | i);
+}
+
/* PIRQ[n]_ROUT[3:0] - PIRQ Routing Control
* 0x00 - 0000 = Reserved
* 0x01 - 0001 = Reserved
@@ -436,6 +450,7 @@ static void lpc_init(struct device *dev)
pch_pirq_init(dev);
setup_i8259();
i8259_configure_irq_trigger(9, 1);
+ enable_hpet(dev);
/* Initialize power management */
pch_power_options(dev);