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authorPaul Menzel <paulepanter@users.sourceforge.net>2013-04-23 14:49:41 +0200
committerAaron Durbin <adurbin@google.com>2013-05-07 22:40:31 +0200
commit1b3e176468213747188c8979a505a4dd8b83f0bd (patch)
tree6480f7bebb30f5f322aff95fa9b4bca394443620 /src
parentac75bc682b2c546ea01d6ad254df7b1a48a9f68f (diff)
x86 I/O APIC: Dump I/O APIC regs in `ioapic.c`
Some southbridges have code in their `lpc.c` files to dump the I/O APIC registers. printk(BIOS_SPEW, "Dumping IOAPIC registers\n"); for (i=0; i<3; i++) { *ioapic_index = i; printk(BIOS_SPEW, " reg 0x%04x:", i); reg32 = *ioapic_data; printk(BIOS_SPEW, " 0x%08x\n", reg32); } Add similar code to `src/arch/x86/lib/ioapic.c` so all boards using the function `set_ioapic_id()` get the debug feature and the other boards can be more easily adapted in follow-up patches. Change-Id: Ic59c4c2213ed97bdf3798b3dc6e7cecc30e135d8 Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-on: http://review.coreboot.org/3184 Reviewed-by: Aaron Durbin <adurbin@google.com> Tested-by: build bot (Jenkins)
Diffstat (limited to 'src')
-rw-r--r--src/arch/x86/lib/ioapic.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/src/arch/x86/lib/ioapic.c b/src/arch/x86/lib/ioapic.c
index 4964af6757..7fb25ba1f0 100644
--- a/src/arch/x86/lib/ioapic.c
+++ b/src/arch/x86/lib/ioapic.c
@@ -77,6 +77,7 @@ void clear_ioapic(u32 ioapic_base)
void set_ioapic_id(u32 ioapic_base, u8 ioapic_id)
{
u32 bsp_lapicid = lapicid();
+ int i;
printk(BIOS_DEBUG, "IOAPIC: Initializing IOAPIC at 0x%08x\n",
ioapic_base);
@@ -90,6 +91,12 @@ void set_ioapic_id(u32 ioapic_base, u8 ioapic_id)
(io_apic_read(ioapic_base, 0x00) & 0xf0ffffff) |
(ioapic_id << 24));
}
+
+ printk(BIOS_SPEW, "IOAPIC: Dumping registers\n");
+ for (i = 0; i < 3; i++)
+ printk(BIOS_SPEW, " reg 0x%04x: 0x%08x\n", i,
+ io_apic_read(ioapic_base, i));
+
}
static void load_vectors(u32 ioapic_base)