diff options
| author | Subrata Banik <subratabanik@google.com> | 2022-04-18 12:25:13 +0530 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2022-04-27 12:31:40 +0000 |
| commit | f021952c40673c3b66f39ae8fea8db7265bdfff3 (patch) | |
| tree | a10bb7ce2596522341d67507fc876b3e1c3fe822 /src | |
| parent | a56642e981d376928ef0573f6ed53e958c1ec1f5 (diff) | |
soc/intel/alderlake: Implement PMC static function lock
This patch performs PMC static function lockdown.
BUG=b:211954778
TEST=Able to build and boot google/redrix to OS. Verified PMC static PG
lock (bit 31) is set.
> iotools mmio_read32 0xfe001e20
0x80000000
Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: I68343f9af4f34aceae06293c5f87c5eaa3430a60
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63689
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Diffstat (limited to 'src')
| -rw-r--r-- | src/soc/intel/alderlake/include/soc/pmc.h | 3 | ||||
| -rw-r--r-- | src/soc/intel/alderlake/lockdown.c | 3 |
2 files changed, 6 insertions, 0 deletions
diff --git a/src/soc/intel/alderlake/include/soc/pmc.h b/src/soc/intel/alderlake/include/soc/pmc.h index 52cc0b5e1c..ca11ae933a 100644 --- a/src/soc/intel/alderlake/include/soc/pmc.h +++ b/src/soc/intel/alderlake/include/soc/pmc.h @@ -142,6 +142,9 @@ extern struct device_operations pmc_ops; #define ACPI_EN (1 << 7) #define SCI_IRQ_SEL (7 << 0) +#define ST_PG_FDIS1 0x1e20 +#define ST_FDIS_LOCK (1 << 31) + #define SCIS_IRQ9 0 #define SCIS_IRQ10 1 #define SCIS_IRQ11 2 diff --git a/src/soc/intel/alderlake/lockdown.c b/src/soc/intel/alderlake/lockdown.c index b0da51ffdd..5d012d8e1b 100644 --- a/src/soc/intel/alderlake/lockdown.c +++ b/src/soc/intel/alderlake/lockdown.c @@ -23,6 +23,9 @@ static void pmc_lockdown_cfg(int chipset_lockdown) if (chipset_lockdown == CHIPSET_LOCKDOWN_COREBOOT) setbits32(pmcbase + GEN_PMCON_B, SMI_LOCK); + + if (!CONFIG(USE_FSP_NOTIFY_PHASE_POST_PCI_ENUM)) + setbits32(pmcbase + ST_PG_FDIS1, ST_FDIS_LOCK); } void soc_lockdown_config(int chipset_lockdown) |