soc/intel/jasperlake: Lock PAM registers in finalize

Use the support from the previous patch to have coreboot lock the PAM
registers instead of the FSP when the lockdown configuration is set to
coreboot.

Change-Id: I10f859f30b260d012f0bc8755f32413d8b2cf267
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/57183
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>

src/soc/intel/jasperlake/finalize.c

@@ -9,8 +9,10 @@
 #include <intelblocks/lpc_lib.h>
 #include <intelblocks/pcr.h>
 #include <intelblocks/pmclib.h>
+#include <intelblocks/systemagent.h>
 #include <intelblocks/tco.h>
 #include <intelblocks/thermal.h>
+#include <intelpch/lockdown.h>
 #include <soc/p2sb.h>
 #include <soc/pci_devs.h>
 #include <soc/pcr_ids.h>
@@ -80,12 +82,19 @@ static void pch_finalize(void)
 	pmc_clear_pmcon_sts();
 }
 
+static void sa_finalize(void)
+{
+	if (get_lockdown_config() == CHIPSET_LOCKDOWN_COREBOOT)
+		sa_lock_pam();
+}
+
 static void soc_finalize(void *unused)
 {
 	printk(BIOS_DEBUG, "Finalizing chipset.\n");
 
 	pch_finalize();
 	apm_control(APM_CNT_FINALIZE);
+	sa_finalize();
 
 	/* Indicate finalize step with post code */
 	post_code(POST_OS_BOOT);

src/soc/intel/jasperlake/fsp_params.c

@@ -75,6 +75,7 @@ void platform_fsp_silicon_init_params_cb(FSPS_UPD *supd)
 	params->PchLockDownBiosInterface = lockdown_by_fsp;
 	params->PchUnlockGpioPads = !lockdown_by_fsp;
 	params->RtcMemoryLock = lockdown_by_fsp;
+	params->SkipPamLock = !lockdown_by_fsp;
 
 	/* coreboot will send EOP before loading payload */
 	params->EndOfPostMessage = EOP_DISABLE;