src/mainboard/intel/baskingridge/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 <soc/nvs.h>
   7 #include <southbridge/intel/lynxpoint/pch.h>
   8 #include <southbridge/intel/lynxpoint/me.h>
   9 #include <northbridge/intel/haswell/haswell.h>
  10 #include <cpu/intel/haswell/haswell.h>
  11
  12 /*
  13  * Change LED_POWER# (SIO GPIO 45) state based on sleep type.
  14  * The IO address is hardcoded as we don't have device path in SMM.
  15  */
  16 #define SIO_GPIO_BASE_SET4      (0x730 + 3)
  17 #define SIO_GPIO_BLINK_GPIO45   0x25
  18 void mainboard_smi_sleep(u8 slp_typ)
  19 {
  20         u8 reg8;
  21
  22         switch (slp_typ) {
  23         case ACPI_S3:
  24         case ACPI_S4:
  25                 break;
  26
  27         case ACPI_S5:
  28                 /* Turn off LED */
  29                 reg8 = inb(SIO_GPIO_BASE_SET4);
  30                 reg8 |= (1 << 5);
  31                 outb(reg8, SIO_GPIO_BASE_SET4);
  32                 break;
  33         }
  34 }