src/southbridge/amd/pi/hudson/smi.c

   1 /* This file is part of the coreboot project. */
   2 /* SPDX-License-Identifier: GPL-2.0-or-later */
   3
   4 /*
   5  * Utilities for SMM setup
   6  */
   7
   8 #include <amdblocks/acpimmio.h>
   9 #include <console/console.h>
  10 #include <cpu/x86/smm.h>
  11
  12 #include "smi.h"
  13
  14 void smm_setup_structures(void *gnvs, void *tcg, void *smi1)
  15 {
  16         printk(BIOS_DEBUG, "smm_setup_structures STUB!!!\n");
  17 }
  18
  19 /** Set the EOS bit and enable SMI generation from southbridge */
  20 void hudson_enable_smi_generation(void)
  21 {
  22         uint32_t reg = smi_read32(SMI_REG_SMITRIG0);
  23         reg &= ~SMITRG0_SMIENB; /* Enable SMI generation */
  24         reg |= SMITRG0_EOS;     /* Set EOS bit */
  25         smi_write32(SMI_REG_SMITRIG0, reg);
  26 }