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/* SPDX-License-Identifier: GPL-2.0-only */
/* This file is part of the coreboot project. */
#include <device/pci_ops.h>
#include <console/console.h>
#include <cpu/x86/smm.h>
#include <southbridge/intel/bd82x6x/nvs.h>
#include <southbridge/intel/bd82x6x/pch.h>
#include <southbridge/intel/bd82x6x/me.h>
#include <southbridge/intel/common/pmbase.h>
#include <northbridge/intel/sandybridge/sandybridge.h>
#include <cpu/intel/model_206ax/model_206ax.h>
/* Include EC functions */
#include <ec/quanta/it8518/ec.h>
#include "ec.h"
static u8 mainboard_smi_ec(void)
{
u8 cmd = ec_it8518_get_event();
switch (cmd) {
case EC_SMI_LID_CLOSED:
printk(BIOS_DEBUG, "LID CLOSED, SHUTDOWN\n");
/* Go to S5 */
write_pmbase32(PM1_CNT, read_pmbase32(PM1_CNT) | (0xf << 10));
break;
}
return cmd;
}
void mainboard_smi_gpi(u32 gpi_sts)
{
if (gpi_sts & (1 << EC_SMI_GPI)) {
/* Process all pending events */
while (mainboard_smi_ec() != 0);
}
}
void mainboard_smi_sleep(u8 slp_typ)
{
/*
* Tell the EC to Enable USB power for S3 if requested.
* Bit0 of 0x0D/Bit0 of 0x26
* 0/0 All USB port off
* 1/0 USB on, all USB port didn't support wake up
* 0/1 USB on, yellow port support wake up charge, but may not support
* charge smart phone.
* 1/1 USB on, yellow port in AUTO mode and didn't support wake up system.
*/
if (smm_get_gnvs()->s3u0 != 0 || smm_get_gnvs()->s3u1 != 0) {
ec_write(EC_PERIPH_CNTL_3, ec_read(EC_PERIPH_CNTL_3) | 0x00);
ec_write(EC_USB_S3_EN, ec_read(EC_USB_S3_EN) | 0x01);
printk(BIOS_DEBUG, "USB wake from S3 enabled.\n");
} else {
/*
* If USB charging in suspend is disabled then also disable
* the XHCI PME to prevent wake when the port power is cut
* after the transition into suspend.
*/
if (smm_get_gnvs()->xhci) {
u32 reg32 = pci_read_config32(PCH_XHCI_DEV, 0x74);
reg32 &= ~(1 << 8); /* disable PME */
reg32 |= (1 << 15); /* clear PME status */
pci_write_config32(PCH_XHCI_DEV, 0x74, reg32);
}
}
ec_kbc_write_cmd(EC_KBD_CMD_MUTE);
ec_it8518_enable_wake_events();
}
#define APMC_ACPI_EN 0xe1
#define APMC_ACPI_DIS 0x1e
int mainboard_smi_apmc(u8 apmc)
{
switch (apmc) {
case APM_CNT_FINALIZE:
stout_ec_finalize_smm();
break;
case APMC_ACPI_EN:
/*
* TODO(kimarie) Clear all pending events and enable SCI.
*/
ec_write_cmd(EC_CMD_NOTIFY_ACPI_ENTER);
break;
case APMC_ACPI_DIS:
/*
* TODO(kimarie) Clear all pending events and enable SMI.
*/
ec_write_cmd(EC_CMD_NOTIFY_ACPI_EXIT);
break;
}
return 0;
}
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