Add AMD SB900 CIMx code

This code is added to support the AMD SB900 southbridge.

Change-Id: I7dc5e13a53ffd479dcea4e05e8c8631096e2ba91
Signed-off-by: Frank Vibrans <frank.vibrans@amd.com>
Signed-off-by: efdesign98 <efdesign98@gmail.com>
Reviewed-on: http://review.coreboot.org/41
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marcj303@gmail.com>

1 files changed, 93 insertions, 0 deletions

diff --git a/src/vendorcode/amd/cimx/sb900/MemLib.c b/src/vendorcode/amd/cimx/sb900/MemLib.c
new file mode 100755
index 0000000000..4e158c962b
--- /dev/null
+++ b/src/vendorcode/amd/cimx/sb900/MemLib.c
@@ -0,0 +1,93 @@
+/*;********************************************************************************
+;
+; 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 "cbtypes.h"
+
+VOID
+ReadMEM (
+  IN       UINT32 Address,
+  IN       UINT8 OpFlag,
+  IN       VOID* Value
+  )
+{
+  OpFlag = OpFlag & 0x7f;
+  switch ( OpFlag ) {
+  case AccWidthUint8:
+    *((UINT8*)Value) = *((UINT8*) ((UINTN)Address));
+    break;
+  case AccWidthUint16:
+    *((UINT16*)Value) = *((UINT16*) ((UINTN)Address));
+    break;
+  case AccWidthUint32:
+    *((UINT32*)Value) = *((UINT32*) ((UINTN)Address));
+    break;
+  default:
+    break;
+  }
+}
+
+VOID
+WriteMEM (
+  IN       UINT32 Address,
+  IN       UINT8 OpFlag,
+  IN       VOID* Value
+  )
+{
+  OpFlag = OpFlag & 0x7f;
+  switch ( OpFlag ) {
+  case AccWidthUint8 :
+    *((UINT8*) ((UINTN)Address)) = *((UINT8*)Value);
+    break;
+  case AccWidthUint16:
+    *((UINT16*) ((UINTN)Address)) = *((UINT16*)Value);
+    break;
+  case AccWidthUint32:
+    *((UINT32*) ((UINTN)Address)) = *((UINT32*)Value);
+    break;
+  default:
+    break;
+  }
+}
+
+VOID
+RWMEM (
+  IN       UINT32 Address,
+  IN       UINT8 OpFlag,
+  IN       UINT32 Mask,
+  IN       UINT32 Data
+  )
+{
+  UINT32 Result;
+  ReadMEM (Address, OpFlag, &Result);
+  Result = (Result & Mask) | Data;
+  WriteMEM (Address, OpFlag, &Result);
+}
+
+