diff options
| author | Kerry She <Kerry.she@amd.com> | 2011-01-01 17:44:07 +0000 |
|---|---|---|
| committer | Uwe Hermann <uwe@hermann-uwe.de> | 2011-01-01 17:44:07 +0000 |
| commit | 799fed98ea57fc9632b7bf95b3f1d79519cbdd15 (patch) | |
| tree | 94d053f98639980e357b9fba1b404bec153e052c /src/vendorcode/amd/cimx/sb800/ECfanLIB.c | |
| parent | 123edb0f688f2c6b7146929d6650751f6674a95c (diff) | |
Add AMD SB800 southbridge CIMx code.
The main CIMx code is in a src/vendorcode directory and should not be
changed with regard to coding style etc. in order to remain easily syncable
with the "upstream" AMD code.
Signed-off-by: Kerry She <Kerry.she@amd.com>
Acked-by: Stefan Reinauer <stepan@coreboot.org>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6229 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/vendorcode/amd/cimx/sb800/ECfanLIB.c')
| -rw-r--r-- | src/vendorcode/amd/cimx/sb800/ECfanLIB.c | 87 |
1 files changed, 87 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..e5d0cda130 --- /dev/null +++ b/src/vendorcode/amd/cimx/sb800/ECfanLIB.c @@ -0,0 +1,87 @@ +/**
+ * @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
+ }
+}
+
+
|