src/mainboard/google/butterfly/acpi_tables.c


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33

/* SPDX-License-Identifier: GPL-2.0-only */
/* This file is part of the coreboot project. */

#include <stdint.h>
#include <southbridge/intel/bd82x6x/nvs.h>
#include <vendorcode/google/chromeos/gnvs.h>
#include "thermal.h"

void acpi_create_gnvs(global_nvs_t *gnvs)
{
	/* Disable USB ports in S3 by default */
	gnvs->s3u0 = 0;
	gnvs->s3u1 = 0;

	/* Disable USB ports in S5 by default */
	gnvs->s5u0 = 0;
	gnvs->s5u1 = 0;


	// TODO: MLR
	// The firmware read/write status is a "virtual" switch and
	// will be handled elsewhere.  Until then hard-code to
	// read/write instead of read-only for developer mode.
	gnvs->chromeos.vbt2 = ACTIVE_ECFW_RW;

	// the lid is open by default.
	gnvs->lids = 1;

	/* EC handles all thermal and fan control on Butterfly. */
	gnvs->tcrt = CRITICAL_TEMPERATURE;
	gnvs->tpsv = PASSIVE_TEMPERATURE;

}