src/soc/intel/apollolake/lockdown.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <device/mmio.h>
   4 #include <intelblocks/cfg.h>
   5 #include <intelblocks/pmclib.h>
   6 #include <intelpch/lockdown.h>
   7 #include <soc/pm.h>
   8
   9 static void pmc_lock_smi(void)
  10 {
  11         uint8_t *pmcbase;
  12
  13         pmcbase = pmc_mmio_regs();
  14
  15         setbits32(pmcbase + GEN_PMCON2, SMI_LOCK);
  16 }
  17
  18 void soc_lockdown_config(int chipset_lockdown)
  19 {
  20         /* APL only supports CHIPSET_LOCKDOWN_COREBOOT */
  21         if (CONFIG(SOC_INTEL_GEMINILAKE))
  22                 pmc_lock_smi();
  23 }