diff options
| author | Felix Held <felix-coreboot@felixheld.de> | 2021-05-04 21:51:43 +0200 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2021-05-09 18:11:21 +0000 |
| commit | 1ed5a63c8c8b2680ee4371427aa6482a59777326 (patch) | |
| tree | 256439f0377389ea21dcb71002d7c289db8bcdc9 /src/soc/amd/cezanne/include | |
| parent | 6d9a0eab702213514cc7fba8d0a71c39b2a14585 (diff) | |
soc/amd/cezanne: add GNB IOAPIC support
To configure and enable the IOAPIC in the graphics and northbridge (GNB)
container, FSP needs to write an undocumented register, so pass the GNB
IOAPIC MMIO base address to make it show up at that address.
BUG=b:187083211
TEST=Boot guybrush and see IO-APIC initialized
IOAPIC[0]: apic_id 16, version 33, address 0xfec00000, GSI 0-23
IOAPIC[1]: apic_id 17, version 33, address 0xfec01000, GSI 24-55
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: I1e127ce500d052783f0a6e13fb2ad16a8e408b0e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52905
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/soc/amd/cezanne/include')
| -rw-r--r-- | src/soc/amd/cezanne/include/soc/iomap.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/soc/amd/cezanne/include/soc/iomap.h b/src/soc/amd/cezanne/include/soc/iomap.h index 83bb8176fa..486e3cf961 100644 --- a/src/soc/amd/cezanne/include/soc/iomap.h +++ b/src/soc/amd/cezanne/include/soc/iomap.h @@ -11,6 +11,8 @@ #if ENV_X86 /* MMIO Ranges */ +/* IO_APIC_ADDR defined in arch/x86 0xfec00000 */ +#define GNB_IO_APIC_ADDR 0xfec01000 #define SPI_BASE_ADDRESS 0xfec10000 #if CONFIG(HPET_ADDRESS_OVERRIDE) |