src/mainboard/asrock/fatal1ty_z87_professional/mainboard.c

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2
   3 #define __SIMPLE_DEVICE__
   4 #include <arch/io.h>
   5 #include <bootstate.h>
   6 #include <device/device.h>
   7 #include <device/pnp_ops.h>
   8 #include <superio/nuvoton/common/nuvoton.h>
   9 #include <superio/nuvoton/nct6776/nct6776.h>
  10 #include <southbridge/intel/lynxpoint/pch.h>
  11
  12 #define GPIO1_DEV PNP_DEV(0x2e, NCT6776_WDT1_GPIO01A_V)
  13 #define NUVOTON_ENTRY_KEY 0x87
  14 #define NUVOTON_EXIT_KEY 0xAA
  15
  16 /* Enable configuration: pass entry key '0x87' into index port dev
  17  * two times. */
  18 void nuvoton_pnp_enter_conf_state(pnp_devfn_t dev)
  19 {
  20         u16 port = dev >> 8;
  21         outb(NUVOTON_ENTRY_KEY, port);
  22         outb(NUVOTON_ENTRY_KEY, port);
  23 }
  24
  25 /* Disable configuration: pass exit key '0xAA' into index port dev. */
  26 void nuvoton_pnp_exit_conf_state(pnp_devfn_t dev)
  27 {
  28         u16 port = dev >> 8;
  29         outb(NUVOTON_EXIT_KEY, port);
  30 }
  31
  32 static void turn_off_leds(void *unused)
  33 {
  34         nuvoton_pnp_enter_conf_state(GPIO1_DEV);
  35
  36         pnp_set_logical_device(GPIO1_DEV);
  37
  38         pnp_write_config(GPIO1_DEV, 0xf0, 0xff);
  39         pnp_write_config(GPIO1_DEV, 0xf1, 0xff);
  40         pnp_write_config(GPIO1_DEV, 0x27, 0xd0);
  41
  42         nuvoton_pnp_exit_conf_state(GPIO1_DEV);
  43 }
  44
  45 BOOT_STATE_INIT_ENTRY(BS_OS_RESUME, BS_ON_ENTRY, turn_off_leds, NULL);
  46 BOOT_STATE_INIT_ENTRY(BS_PAYLOAD_BOOT, BS_ON_ENTRY, turn_off_leds, NULL);