blob: 3743cf70b1802c73efb5aa87fb0e74589f311f0b (
plain)
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
34
35
36
37
38
39
40
41
42
43
44
45
46
47
|
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2018 Google Inc.
* Copyright (C) 2018 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <baseboard/variants.h>
#include <chip.h>
#include <device/device.h>
#include <device/pci_ids.h>
#include <device/pci_ops.h>
/* PL2 limit in watts for AML and KBL */
#define PL2_AML 18
#define PL2_KBL 15
static uint32_t get_pl2(void)
{
struct device *igd_dev = pcidev_path_on_root(SA_DEVFN_IGD);
uint16_t id;
id = pci_read_config16(igd_dev, PCI_DEVICE_ID);
/* Assume we only have KLB-Y and AML-Y SKUs */
if (id == PCI_DEVICE_ID_INTEL_KBL_GT2_SULXM)
return PL2_KBL;
return PL2_AML;
}
/* Override dev tree settings per board */
void variant_devtree_update(void)
{
config_t *cfg = config_of_soc();
/* Update PL2 based on CPU */
cfg->tdp_pl2_override = get_pl2();
}
|
