| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <console/console.h> |
| #include <cpu/x86/smm.h> |
| #include <soc/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 <ec/smsc/mec1308/ec.h> |
| #include "ec.h" |
| |
| static u8 mainboard_smi_ec(void) |
| { |
| u8 cmd; |
| |
| cmd = read_ec_command_byte(EC_GET_SMI_CAUSE); |
| |
| switch (cmd) { |
| case EC_LID_CLOSE: |
| 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 EC requests */ |
| ec_set_ports(EC_MAILBOX_PORT, EC_MAILBOX_PORT+1); |
| while (mainboard_smi_ec() != 0xff); |
| |
| /* The EC may keep asserting SMI# for some |
| * period unless we kick it here. |
| */ |
| send_ec_command(EC_SMI_DISABLE); |
| send_ec_command(EC_SMI_ENABLE); |
| } |
| } |
| |
| int mainboard_smi_apmc(u8 apmc) |
| { |
| ec_set_ports(EC_MAILBOX_PORT, EC_MAILBOX_PORT+1); |
| |
| switch (apmc) { |
| case 0xe1: /* ACPI ENABLE */ |
| send_ec_command(EC_SMI_DISABLE); |
| send_ec_command(EC_ACPI_ENABLE); |
| break; |
| |
| case 0x1e: /* ACPI DISABLE */ |
| send_ec_command(EC_SMI_ENABLE); |
| send_ec_command(EC_ACPI_DISABLE); |
| break; |
| } |
| return 0; |
| } |