blob: bd741c35717d9229cbf9e0e4d063499e0318f00e [file] [log] [blame]
Patrick Georgiac959032020-05-05 22:49:26 +02001/* SPDX-License-Identifier: GPL-2.0-or-later */
Tristan Corrick3f7de062018-03-02 03:02:07 +13002
Arthur Heymansfa5d0f82019-11-12 19:11:50 +01003#include <bootblock_common.h>
Kyösti Mälkki3855c012019-03-03 08:45:19 +02004#include <device/pnp_ops.h>
Tristan Corrick3f7de062018-03-02 03:02:07 +13005#include <southbridge/intel/bd82x6x/pch.h>
6#include <superio/nuvoton/common/nuvoton.h>
7#include <superio/nuvoton/nct6776/nct6776.h>
8
Arthur Heymansfa5d0f82019-11-12 19:11:50 +01009void bootblock_mainboard_early_init(void)
Tristan Corrick3f7de062018-03-02 03:02:07 +130010{
11 static const pnp_devfn_t GLOBAL_PSEUDO_DEV = PNP_DEV(0x2e, 0);
12 static const pnp_devfn_t ACPI_DEV = PNP_DEV(0x2e, NCT6776_ACPI);
13
14 nuvoton_pnp_enter_conf_state(GLOBAL_PSEUDO_DEV);
15
16 /* Select HWM/LED functions instead of floppy functions. */
17 pnp_write_config(GLOBAL_PSEUDO_DEV, 0x1c, 0x03);
18 pnp_write_config(GLOBAL_PSEUDO_DEV, 0x24, 0x24);
19
20 /* Power RAM in S3. */
21 pnp_set_logical_device(ACPI_DEV);
22 pnp_write_config(ACPI_DEV, 0xe4, 0x10);
23
24 nuvoton_pnp_exit_conf_state(GLOBAL_PSEUDO_DEV);
25}