| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <acpi/acpi_gnvs.h> |
| #include <device/pci_ops.h> |
| #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 <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 (gnvs->s3u0 != 0 || 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 (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(); |
| } |
| |
| int mainboard_smi_apmc(u8 apmc) |
| { |
| switch (apmc) { |
| case APM_CNT_FINALIZE: |
| stout_ec_finalize_smm(); |
| break; |
| case APM_CNT_ACPI_ENABLE: |
| /* |
| * TODO(kimarie) Clear all pending events and enable SCI. |
| */ |
| ec_write_cmd(EC_CMD_NOTIFY_ACPI_ENTER); |
| break; |
| case APM_CNT_ACPI_DISABLE: |
| /* |
| * TODO(kimarie) Clear all pending events and enable SMI. |
| */ |
| ec_write_cmd(EC_CMD_NOTIFY_ACPI_EXIT); |
| break; |
| } |
| return 0; |
| } |