summaryrefslogtreecommitdiff
path: root/src/soc
diff options
context:
space:
mode:
Diffstat (limited to 'src/soc')
-rw-r--r--src/soc/intel/cannonlake/fsp_params.c34
1 files changed, 34 insertions, 0 deletions
diff --git a/src/soc/intel/cannonlake/fsp_params.c b/src/soc/intel/cannonlake/fsp_params.c
index 6fb3060d61..f696f79d04 100644
--- a/src/soc/intel/cannonlake/fsp_params.c
+++ b/src/soc/intel/cannonlake/fsp_params.c
@@ -19,6 +19,7 @@
#include <fsp/api.h>
#include <fsp/util.h>
#include <intelblocks/xdci.h>
+#include <intelpch/lockdown.h>
#include <soc/intel/common/vbt.h>
#include <soc/pci_devs.h>
#include <soc/ramstage.h>
@@ -402,6 +403,39 @@ void platform_fsp_silicon_init_params_cb(FSPS_UPD *supd)
configure_gspi_cs(i, config,
&params->SerialIoSpiCsPolarity[0], NULL, NULL);
#endif
+
+ /* Chipset Lockdown */
+ if (get_lockdown_config() == CHIPSET_LOCKDOWN_COREBOOT) {
+ tconfig->PchLockDownGlobalSmi = 0;
+ tconfig->PchLockDownBiosInterface = 0;
+ params->PchLockDownBiosLock = 0;
+ params->PchLockDownRtcMemoryLock = 0;
+ /*
+ * TODO: Disable SpiFlashCfgLockDown config after FSP provides
+ * dedicated UPD
+ *
+ * Skip SPI Flash Lockdown from inside FSP.
+ * Making this config "0" means FSP won't set the FLOCKDN bit
+ * of SPIBAR + 0x04 (i.e., Bit 15 of BIOS_HSFSTS_CTL).
+ * So, it becomes coreboot's responsibility to set this bit
+ * before end of POST for security concerns.
+ */
+ // params->SpiFlashCfgLockDown = 0;
+ } else {
+ tconfig->PchLockDownGlobalSmi = 1;
+ tconfig->PchLockDownBiosInterface = 1;
+ params->PchLockDownBiosLock = 1;
+ params->PchLockDownRtcMemoryLock = 1;
+ /*
+ * TODO: Enable SpiFlashCfgLockDown config after FSP provides
+ * dedicated UPD
+ *
+ * Enable SPI Flash Lockdown from inside FSP.
+ * Making this config "1" means FSP will set the FLOCKDN bit
+ * of SPIBAR + 0x04 (i.e., Bit 15 of BIOS_HSFSTS_CTL).
+ */
+ // params->SpiFlashCfgLockDown = 1;
+ }
}
/* Mainboard GPIO Configuration */