diff options
| author | Felix Held <felix-coreboot@felixheld.de> | 2021-02-11 03:01:18 +0100 |
|---|---|---|
| committer | Martin Roth <martinroth@google.com> | 2021-02-12 20:48:28 +0000 |
| commit | 1b33205909c5a8f775eefd19107406a620a7fcc5 (patch) | |
| tree | 582707c548758a3cd8f922f8ac97688652a57305 /src | |
| parent | 428a682abe7a0aaf1414d6c9d4f6c862f4c2b5fe (diff) | |
soc/amd/common: add and use fch_enable_ioapic_decode
The default value of this bit is 0, so set it right before calling
setup_ioapic to make sure that it's set and not to have to rely on FSP
doing the right thing.
Change-Id: Ife886451a6927965769282fc5644c2085abb9585
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50513
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src')
| -rw-r--r-- | src/soc/amd/common/block/acpimmio/mmio_util.c | 5 | ||||
| -rw-r--r-- | src/soc/amd/common/block/include/amdblocks/acpimmio.h | 2 | ||||
| -rw-r--r-- | src/soc/amd/common/block/smbus/sm.c | 1 |
3 files changed, 8 insertions, 0 deletions
diff --git a/src/soc/amd/common/block/acpimmio/mmio_util.c b/src/soc/amd/common/block/acpimmio/mmio_util.c index 1cacd44433..a19a28bd0e 100644 --- a/src/soc/amd/common/block/acpimmio/mmio_util.c +++ b/src/soc/amd/common/block/acpimmio/mmio_util.c @@ -74,6 +74,11 @@ void fch_io_enable_legacy_io(void) pm_io_write32(PM_DECODE_EN, pm_io_read32(PM_DECODE_EN) | LEGACY_IO_EN); } +void fch_enable_ioapic_decode(void) +{ + pm_write32(PM_DECODE_EN, pm_read32(PM_DECODE_EN) | FCH_IOAPIC_EN); +} + /* PM registers are accessed a byte at a time via CD6/CD7 */ uint8_t pm_io_read8(uint8_t reg) { diff --git a/src/soc/amd/common/block/include/amdblocks/acpimmio.h b/src/soc/amd/common/block/include/amdblocks/acpimmio.h index 4b80a28a0d..19decdd81b 100644 --- a/src/soc/amd/common/block/include/amdblocks/acpimmio.h +++ b/src/soc/amd/common/block/include/amdblocks/acpimmio.h @@ -17,6 +17,7 @@ #define PM_DECODE_EN 0x00 #define SMBUS_ASF_IO_BASE_SHIFT 8 #define SMBUS_ASF_IO_BASE_MASK (0xff << SMBUS_ASF_IO_BASE_SHIFT) +#define FCH_IOAPIC_EN (1 << 5) #define SMBUS_ASF_IO_EN (1 << 4) #define CF9_IO_EN (1 << 1) #define LEGACY_IO_EN (1 << 0) @@ -75,6 +76,7 @@ void enable_acpimmio_decode_pm04(void); void fch_enable_cf9_io(void); void fch_enable_legacy_io(void); void fch_io_enable_legacy_io(void); +void fch_enable_ioapic_decode(void); /* Access PM registers using IO cycles */ uint8_t pm_io_read8(uint8_t reg); diff --git a/src/soc/amd/common/block/smbus/sm.c b/src/soc/amd/common/block/smbus/sm.c index 1ec2730561..0b219e006d 100644 --- a/src/soc/amd/common/block/smbus/sm.c +++ b/src/soc/amd/common/block/smbus/sm.c @@ -11,6 +11,7 @@ static void sm_init(struct device *dev) { + fch_enable_ioapic_decode(); setup_ioapic(VIO_APIC_VADDR, CONFIG_MAX_CPUS); } |