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
+  }
+}
+
+