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>

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

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)