diff options
Diffstat (limited to 'src/vendorcode/amd/cimx/sb800/ECfanLIB.c')
-rw-r--r-- | src/vendorcode/amd/cimx/sb800/ECfanLIB.c | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/src/vendorcode/amd/cimx/sb800/ECfanLIB.c b/src/vendorcode/amd/cimx/sb800/ECfanLIB.c new file mode 100644 index 0000000000..dfc44d8170 --- /dev/null +++ b/src/vendorcode/amd/cimx/sb800/ECfanLIB.c @@ -0,0 +1,96 @@ +/** + * @file + * + * Southbridge EC IO access common routine + * + */ +/* + ***************************************************************************** + * + * Copyright (c) 2011, Advanced Micro Devices, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Advanced Micro Devices, Inc. nor the names of + * its contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL ADVANCED MICRO DEVICES, INC. BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * *************************************************************************** + * + */ + +#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 + } +} + + |