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, 203 insertions, 0 deletions

diff --git a/src/vendorcode/amd/cimx/sb900/Debug.c b/src/vendorcode/amd/cimx/sb900/Debug.c
new file mode 100755
index 0000000000..76d63b86b3
--- /dev/null
+++ b/src/vendorcode/amd/cimx/sb900/Debug.c
@@ -0,0 +1,203 @@
+/*;********************************************************************************
+;
+; 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"
+
+#define COM_BASE_ADDRESS   0x3f8
+#define DIVISOR            115200
+#define LF                 0x0a
+#define CR                 0x0d
+
+
+#ifdef CIM_DEBUG
+
+VOID SendBytePort (IN UINT8 Data);
+VOID SendStringPort (IN CHAR8* pstr);
+VOID ItoA (IN UINT32 Value, IN UINT32 Radix, IN CHAR8* pstr);
+
+#ifndef CIM_DEBUG_LEVEL
+ #define CIM_DEBUG_LEVEL 0xf
+#endif
+
+VOID
+TraceCode (
+  IN       UINT32 Level,
+  IN       UINT32 Code
+  )
+{
+  if ( ! (Level & CIM_DEBUG_LEVEL) ) {
+    return;
+  }
+#if CIM_DEBUG & 1
+  if ( Code != 0xFF ) {
+    WriteIO (0x80, AccWidthUint8, &Code);
+  }
+#endif
+}
+
+
+VOID
+TraceDebug (
+  IN       UINT32 Level,
+  IN       CHAR8 *Format,
+  )
+{
+  CHAR8 temp[16];
+  va_list  ArgList;
+  UINT32 Radix;
+
+  if ( ! (Level & CIM_DEBUG_LEVEL) ) {
+    return;
+  }
+
+#if CIM_DEBUG & 2
+  ArgList = va_start (ArgList, Format);
+  Format = (CHAR8*) (Format);
+  while ( 1 ) {
+    if ( *Format == 0 ) {
+      break;
+    }
+    if ( *Format == ' % ' ) {
+      Radix = 0;
+      if ( *(Format + 1) == 's' || *(Format + 1) == 'S' ) {
+        SendStringPort ((CHAR8*) (va_arg (ArgList, CHAR8*)));
+        Format += 2;
+        continue;
+      }
+
+      if ( *(Format + 1) == 'd' || *(Format + 1) == 'D' ) {
+        Radix = 10;
+      }
+      if ( *(Format + 1) == 'x' || *(Format + 1) == 'X' ) {
+        Radix = 16;
+      }
+      if ( Radix ) {
+        ItoA (va_arg (ArgList, intqq), Radix, temp);
+        SendStringPort (temp);
+        Format += 2;
+        continue;
+      }
+    }
+    SendBytePort (*Format);
+    if ( *(Format) == 0x0a ) {
+      SendBytePort (0x0d);
+    }
+    Format++;
+  }
+  va_end (ArgList);
+#endif
+}
+
+
+VOID
+ItoA (
+  IN       UINT32 Value,
+  IN       UINT32 Radix,
+  IN       CHAR8* pstr
+  )
+{
+  CHAR8* tsptr;
+  CHAR8* rsptr;
+  CHAR8  ch1;
+  CHAR8  ch2;
+  UINT32 Reminder;
+  tsptr = pstr;
+  rsptr = pstr;
+//Create String
+  do {
+    Reminder = Value % Radix;
+    Value = Value / Radix;
+    if ( Reminder < 0xa ) {
+      *tsptr = Reminder + '0';
+    } else {
+      *tsptr = Reminder - 0xa + 'a';
+    }
+    tsptr++;
+  } while ( Value );
+//Reverse String
+  *tsptr = 0;
+  tsptr--;
+  while ( tsptr > rsptr ) {
+    ch1 = *tsptr;
+    ch2 = *rsptr;
+    *rsptr = ch1;
+    *tsptr = ch2;
+    tsptr--;
+    rsptr++;
+  }
+}
+
+VOID
+InitSerialOut (
+  )
+{
+  UINT8 Data;
+  UINT16   Divisor;
+  Data = 0x87;
+  WriteIO (COM_BASE_ADDRESS + 0x3, AccWidthUint8, &Data);
+  Divisor = 115200 / DIVISOR;
+  Data = Divisor & 0xFF;
+  WriteIO (COM_BASE_ADDRESS + 0x00, AccWidthUint8, &Data);
+  Data = Divisor >> 8;
+  WriteIO (COM_BASE_ADDRESS + 0x01, AccWidthUint8, &Data);
+  Data = 0x07;
+  WriteIO (COM_BASE_ADDRESS + 0x3, AccWidthUint8, &Data);
+}
+
+
+VOID
+SendStringPort (
+  IN       CHAR8* pstr
+  )
+{
+
+  while ( *pstr! = 0 ) {
+    SendBytePort (*pstr);
+    pstr++;
+  }
+}
+
+VOID
+SendBytePort (
+  IN       UINT8 Data
+  )
+{
+  INT8   Count;
+  UINT8 Status;
+  Count = 80;
+  do {
+    ReadIO ((COM_BASE_ADDRESS + 0x05), AccWidthUint8, &Status);
+    if ( Status == 0xff ) {
+      break;
+    }
+    // Loop  port is ready
+  } while ( (Status & 0x20) == 0 && (--Count) != 0 );
+  WriteIO (COM_BASE_ADDRESS + 0x00, AccWidthUint8, &Data);
+}
+#endif