diff options
| -rw-r--r-- | src/soc/intel/xeon_sp/cpx/include/soc/pci_devs.h | 1 | ||||
| -rw-r--r-- | src/soc/intel/xeon_sp/finalize.c | 18 | ||||
| -rw-r--r-- | src/soc/intel/xeon_sp/skx/include/soc/pci_devs.h | 1 |
3 files changed, 20 insertions, 0 deletions
diff --git a/src/soc/intel/xeon_sp/cpx/include/soc/pci_devs.h b/src/soc/intel/xeon_sp/cpx/include/soc/pci_devs.h index 7b16945958..7f4a04583d 100644 --- a/src/soc/intel/xeon_sp/cpx/include/soc/pci_devs.h +++ b/src/soc/intel/xeon_sp/cpx/include/soc/pci_devs.h @@ -11,6 +11,7 @@ #define SAD_ALL_DEV 29 #define SAD_ALL_FUNC 0 #define SAD_ALL_PAM0123_CSR 0x40 +#define PAM_LOCK BIT(0) #define SAD_ALL_PAM456_CSR 0x44 #if !defined(__SIMPLE_DEVICE__) diff --git a/src/soc/intel/xeon_sp/finalize.c b/src/soc/intel/xeon_sp/finalize.c index bfcf212558..044c1cc138 100644 --- a/src/soc/intel/xeon_sp/finalize.c +++ b/src/soc/intel/xeon_sp/finalize.c @@ -4,12 +4,30 @@ #include <console/console.h> #include <console/debug.h> #include <cpu/x86/smm.h> +#include <device/pci.h> +#include <intelpch/lockdown.h> +#include <soc/pci_devs.h> +#include <soc/util.h> + +#include "chip.h" + +static void lock_pam0123(void) +{ + const struct device *dev; + + if (get_lockdown_config() != CHIPSET_LOCKDOWN_COREBOOT) + return; + + dev = pcidev_path_on_bus(get_stack_busno(1), PCI_DEVFN(SAD_ALL_DEV, SAD_ALL_FUNC)); + pci_or_config32(dev, SAD_ALL_PAM0123_CSR, PAM_LOCK); +} static void soc_finalize(void *unused) { printk(BIOS_DEBUG, "Finalizing chipset.\n"); apm_control(APM_CNT_FINALIZE); + lock_pam0123(); post_code(POST_OS_BOOT); } diff --git a/src/soc/intel/xeon_sp/skx/include/soc/pci_devs.h b/src/soc/intel/xeon_sp/skx/include/soc/pci_devs.h index 96239baf03..01e86e199f 100644 --- a/src/soc/intel/xeon_sp/skx/include/soc/pci_devs.h +++ b/src/soc/intel/xeon_sp/skx/include/soc/pci_devs.h @@ -24,6 +24,7 @@ #define SAD_ALL_DEV 29 #define SAD_ALL_FUNC 0 #define SAD_ALL_PAM0123_CSR 0x40 +#define PAM_LOCK BIT(0) #define SAD_ALL_PAM456_CSR 0x44 #if !defined(__SIMPLE_DEVICE__) |