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
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
|
/* SPDX-License-Identifier: GPL-2.0-only */
#include <console/console.h>
#include <cpu/x86/smm.h>
#include <southbridge/intel/bd82x6x/nvs.h>
#include <southbridge/intel/bd82x6x/pch.h>
#include <southbridge/intel/bd82x6x/me.h>
#include <southbridge/intel/common/pmutil.h>
#include <southbridge/intel/common/pmbase.h>
#include <northbridge/intel/sandybridge/sandybridge.h>
#include <cpu/intel/model_206ax/model_206ax.h>
#include <ec/compal/ene932/ec.h>
#include "ec.h"
static u8 mainboard_smi_ec(void)
{
u8 src;
ec_kbc_write_cmd(0x56);
src = ec_kbc_read_ob();
printk(BIOS_DEBUG, "mainboard_smi_ec src: %x\n", src);
switch (src) {
case EC_BATTERY_CRITICAL:
break;
case EC_LID_CLOSE:
printk(BIOS_DEBUG, "LID CLOSED, SHUTDOWN\n");
/* Go to S5 */
write_pmbase32(PM1_CNT, read_pmbase32(PM1_CNT) | (0xf << 10));
break;
}
return src;
}
void mainboard_smi_gpi(u32 gpi_sts)
{
printk(BIOS_DEBUG, "mainboard_smi_gpi: %x\n", gpi_sts);
if (gpi_sts & (1 << EC_SMI_GPI)) {
/* Process all pending events from EC */
while (mainboard_smi_ec() != EC_NO_EVENT);
}
else if (gpi_sts & (1 << EC_LID_GPI)) {
printk(BIOS_DEBUG, "LID CLOSED, SHUTDOWN\n");
/* Go to S5 */
write_pmbase32(PM1_CNT, read_pmbase32(PM1_CNT) | (0xf << 10));
}
}
void mainboard_smi_sleep(u8 slp_typ)
{
printk(BIOS_DEBUG, "mainboard_smi_sleep: %x\n", slp_typ);
/* Disable SCI and SMI events */
/* Clear pending events that may trigger immediate wake */
/* Enable wake events */
/* Tell the EC to Disable USB power */
if (gnvs->s3u0 == 0 && gnvs->s3u1 == 0) {
ec_kbc_write_cmd(0x45);
ec_kbc_write_ib(0xF2);
}
}
int mainboard_smi_apmc(u8 apmc)
{
printk(BIOS_DEBUG, "mainboard_smi_apmc: %x\n", apmc);
switch (apmc) {
case APM_CNT_ACPI_ENABLE:
printk(BIOS_DEBUG, "APMC: ACPI_EN\n");
/* Clear all pending events */
/* EC cmd:59 data:E8 */
ec_kbc_write_cmd(0x59);
ec_kbc_write_ib(0xE8);
/* Set LID GPI to generate SCIs */
gpi_route_interrupt(EC_LID_GPI, GPI_IS_SCI);
break;
case APM_CNT_ACPI_DISABLE:
printk(BIOS_DEBUG, "APMC: ACPI_DIS\n");
/* Clear all pending events */
/* EC cmd:59 data:e9 */
ec_kbc_write_cmd(0x59);
ec_kbc_write_ib(0xE9);
/* Set LID GPI to generate SMIs */
gpi_route_interrupt(EC_LID_GPI, GPI_IS_SMI);
break;
}
return 0;
}
|
