src/mainboard/prodrive/hermes/smihandler.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <acpi/acpi.h>
   4 #include <cpu/x86/smm.h>
   5 #include <intelblocks/gpio.h>
   6 #include <intelblocks/smihandler.h>
   7 #include <soc/gpio.h>
   8
   9 static const struct pad_config sgpio_table[] = {
  10         PAD_CFG_GPO(GPP_F10, 0, DEEP),
  11         PAD_CFG_GPO(GPP_F11, 0, DEEP),
  12         PAD_CFG_GPO(GPP_F12, 0, DEEP),
  13         PAD_CFG_GPO(GPP_F13, 0, DEEP),
  14 };
  15
  16 void mainboard_smi_sleep(u8 slp_typ)
  17 {
  18         /*
  19          * Pull SGPIO pins low to prevent cross-powering the +5V rail
  20          * through the SATA backplane when the power supply is off.
  21          */
  22         if (slp_typ >= ACPI_S3)
  23                 gpio_configure_pads(sgpio_table, ARRAY_SIZE(sgpio_table));
  24 }