| /* 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/pmutil.h> |
| #include <southbridge/intel/common/pmbase.h> |
| #include <northbridge/intel/sandybridge/sandybridge.h> |
| #include <cpu/intel/model_206ax/model_206ax.h> |
| #include <ec/compal/ene932/ec.h> |
| #include "ec.h" |
| |
| static u8 mainboard_smi_ec(void) |
| { |
| u8 src; |
| |
| ec_kbc_write_cmd(0x56); |
| src = ec_kbc_read_ob(); |
| printk(BIOS_DEBUG, "%s src: %x\n", __func__, src); |
| |
| switch (src) { |
| case EC_BATTERY_CRITICAL: |
| break; |
| 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 src; |
| } |
| |
| void mainboard_smi_gpi(u32 gpi_sts) |
| { |
| if (gpi_sts & (1 << EC_SMI_GPI)) { |
| /* Process all pending events from EC */ |
| do {} while (mainboard_smi_ec() != EC_NO_EVENT); |
| } else if (gpi_sts & (1 << EC_LID_GPI)) { |
| printk(BIOS_DEBUG, "LID CLOSED, SHUTDOWN\n"); |
| |
| /* Go to S5 */ |
| write_pmbase32(PM1_CNT, read_pmbase32(PM1_CNT) | (0xf << 10)); |
| } |
| } |
| |
| void mainboard_smi_sleep(u8 slp_typ) |
| { |
| /* Disable SCI and SMI events */ |
| |
| /* Clear pending events that may trigger immediate wake */ |
| |
| /* Enable wake events */ |
| |
| /* Tell the EC to Disable USB power */ |
| if (gnvs->s3u0 == 0 && gnvs->s3u1 == 0) { |
| ec_kbc_write_cmd(0x45); |
| ec_kbc_write_ib(0xF2); |
| } |
| } |
| |
| int mainboard_smi_apmc(u8 apmc) |
| { |
| switch (apmc) { |
| case APM_CNT_ACPI_ENABLE: |
| /* Clear all pending events */ |
| /* EC cmd:59 data:E8 */ |
| ec_kbc_write_cmd(0x59); |
| ec_kbc_write_ib(0xE8); |
| |
| /* Set LID GPI to generate SCIs */ |
| gpi_route_interrupt(EC_LID_GPI, GPI_IS_SCI); |
| break; |
| case APM_CNT_ACPI_DISABLE: |
| /* Clear all pending events */ |
| /* EC cmd:59 data:e9 */ |
| ec_kbc_write_cmd(0x59); |
| ec_kbc_write_ib(0xE9); |
| |
| /* Set LID GPI to generate SMIs */ |
| gpi_route_interrupt(EC_LID_GPI, GPI_IS_SMI); |
| break; |
| } |
| return 0; |
| } |