src/mainboard/intel/emeraldlake2/smihandler.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <acpi/acpi.h>
   4 #include <arch/io.h>
   5 #include <cpu/x86/smm.h>
   6 #include <southbridge/intel/bd82x6x/pch.h>
   7 #include <southbridge/intel/bd82x6x/me.h>
   8 #include <northbridge/intel/sandybridge/sandybridge.h>
   9
  10 /*
  11  * Change LED_POWER# (SIO GPIO 45) state based on sleep type.
  12  * The IO address is hardcoded as we don't have device path in SMM.
  13  */
  14 #define SIO_GPIO_BASE_SET4      (0x730 + 3)
  15 #define SIO_GPIO_BLINK_GPIO45   0x25
  16 void mainboard_smi_sleep(u8 slp_typ)
  17 {
  18         u8 reg8;
  19
  20         switch (slp_typ) {
  21         case ACPI_S3:
  22         case ACPI_S4:
  23                 break;
  24
  25         case ACPI_S5:
  26                 /* Turn off LED */
  27                 reg8 = inb(SIO_GPIO_BASE_SET4);
  28                 reg8 |= (1 << 5);
  29                 outb(reg8, SIO_GPIO_BASE_SET4);
  30                 break;
  31         }
  32 }