summaryrefslogtreecommitdiff
path: root/src/mainboard/lenovo/t420s/early_init.c
blob: 990a0b3e52e40effee2c84a1e08068135ff264af (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
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
/* SPDX-License-Identifier: GPL-2.0-only */

#include <device/pci_ops.h>
#include <northbridge/intel/sandybridge/raminit_native.h>
#include <southbridge/intel/bd82x6x/pch.h>
#include <drivers/lenovo/hybrid_graphics/hybrid_graphics.h>
#include <northbridge/intel/sandybridge/sandybridge.h>
#include <device/device.h>

static void hybrid_graphics_init(void)
{
	bool peg, igd;
	u32 reg32;

	early_hybrid_graphics(&igd, &peg);

	if (peg && igd)
		return;

	/* Hide disabled devices */
	reg32 = pci_read_config32(PCI_DEV(0, 0, 0), DEVEN);
	reg32 &= ~(DEVEN_PEG10 | DEVEN_IGD);

	if (peg)
		reg32 |= DEVEN_PEG10;

	if (igd)
		reg32 |= DEVEN_IGD;
	else
		/* Disable IGD VGA decode, no GTT or GFX stolen */
		pci_write_config16(PCI_DEV(0, 0, 0), GGC, 2);

	pci_write_config32(PCI_DEV(0, 0, 0), DEVEN, reg32);
}

const struct southbridge_usb_port mainboard_usb_ports[] = {
	{ 0, 1, -1 }, /* P0: empty */
	{ 1, 1,  1 }, /* P1: system port 2 (To system port) (EHCI debug), OC 1 */
	{ 1, 1, -1 }, /* P2: HALF MINICARD (WLAN) no oc */
	{ 1, 0, -1 }, /* P3: WWAN, no OC */
	{ 1, 1, -1 }, /* P4: smartcard, no OC */
	{ 1, 1, -1 }, /* P5: ExpressCard, no OC */
	{ 0, 0, -1 }, /* P6: empty */
	{ 0, 0, -1 }, /* P7: empty */
	{ 0, 1, -1 }, /* P8: empty (touch panel) */
	{ 1, 0,  5 }, /* P9: system port 1 (To USBAO) (EHCI debug), OC 5 */
	{ 1, 0, -1 }, /* P10: fingerprint reader, no OC */
	{ 1, 1, -1 }, /* P11: bluetooth, no OC. */
	{ 1, 1, -1 }, /* P12: docking, no OC */
	{ 1, 1, -1 }, /* P13: camera (LCD), no OC */
};

void mainboard_get_spd(spd_raw_data *spd, bool id_only)
{
	read_spd(&spd[0], 0x50, id_only);
	read_spd(&spd[2], 0x51, id_only);
}

void mainboard_early_init(int s3resume)
{
	hybrid_graphics_init();
}