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
|
/**
* @file
*
* Southbridge EC IO access common routine
*
*/
/*
*****************************************************************************
*
* This file is part of the coreboot project.
*
* Copyright (C) 2010 Advanced Micro Devices, Inc.
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
* ***************************************************************************
*
*/
#include "SBPLATFORM.h"
#include "ECfan.h"
VOID
ReadECmsg (
IN UINT8 Address,
IN UINT8 OpFlag,
OUT VOID* Value
)
{
UINT8 i;
OpFlag = OpFlag & 0x7f;
if (OpFlag == 0x02) OpFlag = 0x03;
for (i = 0; i <= OpFlag; i++) {
WriteIO(MailBoxPort, AccWidthUint8, &Address); // EC_LDN9_MAILBOX_BASE_ADDRESS
Address++;
ReadIO(MailBoxPort + 1, AccWidthUint8, (UINT8 *)Value+i); // EC_LDN9_MAILBOX_BASE_ADDRESS
}
}
VOID
WriteECmsg (
IN UINT8 Address,
IN UINT8 OpFlag,
IN VOID* Value
)
{
UINT8 i;
OpFlag = OpFlag & 0x7f;
if (OpFlag == 0x02) OpFlag = 0x03;
for (i = 0; i <= OpFlag; i++) {
WriteIO(MailBoxPort, AccWidthUint8, &Address); // EC_LDN9_MAILBOX_BASE_ADDRESS
Address++;
WriteIO(MailBoxPort + 1, AccWidthUint8, (UINT8 *)Value+i); // EC_LDN9_MAILBOX_BASE_ADDRESS
}
}
VOID
WaitForEcLDN9MailboxCmdAck (
VOID
)
{
UINT8 Msgdata;
UINT16 Delaytime;
Msgdata = 0;
for (Delaytime = 0; Delaytime <= 500; Delaytime++) {
ReadECmsg (MSG_REG0, AccWidthUint8, &Msgdata);
if ( Msgdata == 0xfa) {
break;
}
SbStall (1000); // Wait for 1ms
}
}
|
