/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Utilities for SMM setup */ #include <arch/io.h> #include <console/console.h> #include <cpu/x86/smm.h> #include <amdblocks/acpimmio.h> #include <soc/southbridge.h> #include <soc/smi.h> /** Set the EOS bit and enable SMI generation from southbridge */ void global_smi_enable(void) { uint32_t reg = smi_read32(SMI_REG_SMITRIG0); reg &= ~SMITRG0_SMIENB; /* Enable SMI generation */ reg |= SMITRG0_EOS; /* Set EOS bit */ smi_write32(SMI_REG_SMITRIG0, reg); outb(APM_CNT_SMMINFO, APM_CNT); }