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-rw-r--r--src/soc/intel/skylake/lpc.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/src/soc/intel/skylake/lpc.c b/src/soc/intel/skylake/lpc.c
index 64dfa22a9c..861b5ba76b 100644
--- a/src/soc/intel/skylake/lpc.c
+++ b/src/soc/intel/skylake/lpc.c
@@ -54,15 +54,16 @@
static void pch_enable_ioapic(struct device *dev)
{
u32 reg32;
+ /* PCH-LP has 120 redirection entries */
+ const int redir_entries = 120;
set_ioapic_id((void *)IO_APIC_ADDR, 0x02);
/* affirm full set of redirection table entries ("write once") */
reg32 = io_apic_read((void *)IO_APIC_ADDR, 0x01);
- /* PCH-LP has 39 redirection entries */
reg32 &= ~0x00ff0000;
- reg32 |= 0x00270000;
+ reg32 |= (redir_entries - 1) << 16;
io_apic_write((void *)IO_APIC_ADDR, 0x01, reg32);