coreboot-kgpe-d16/src/soc/amd/picasso/smi.c
Marshall Dawson 5dbe45e0f5 soc/amd/picasso: Skip SmmInfo to PSP on S3 resume
The PSP does not accept the SmmInfo command during a resume so
remove the call.

BUG=b:163017485
TEST=Run SST on trembyle, verify error message goes away
BRANCH=Zork

Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Change-Id: Ib75a20c9594bc331aa7abf77be95196085a3dbc6
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44398
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-10-19 15:37:12 +00:00

25 lines
601 B
C

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Utilities for SMM setup
*/
#include <acpi/acpi.h>
#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);
if (!acpi_is_wakeup_s3())
outb(APM_CNT_SMMINFO, APM_CNT);
}