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, 153 insertions, 0 deletions

diff --git a/src/vendorcode/amd/cimx/sb900/EcLib.c b/src/vendorcode/amd/cimx/sb900/EcLib.c
new file mode 100755
index 0000000000..79131bf695
--- /dev/null
+++ b/src/vendorcode/amd/cimx/sb900/EcLib.c
@@ -0,0 +1,153 @@
+/**
+ * @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 "cbtypes.h"
+
+// #ifndef NO_EC_SUPPORT
+
+/*----------------------------------------------------------------------------------------*/
+/**
+ * EnterEcConfig - Force EC into Config mode
+ *
+ *
+ *
+ *
+ */
+VOID
+EnterEcConfig (
+  )
+{
+  UINT16   dwEcIndexPort;
+
+  ReadPCI ((LPC_BUS_DEV_FUN << 16) + SB_LPC_REGA4, AccWidthUint16 | S3_SAVE, &dwEcIndexPort);
+  dwEcIndexPort &= ~(BIT0);
+  RWIO (dwEcIndexPort, AccWidthUint8, 0x00, 0x5A);
+}
+
+/*----------------------------------------------------------------------------------------*/
+/**
+ * ExitEcConfig - Force EC exit Config mode
+ *
+ *
+ *
+ *
+ */
+VOID
+ExitEcConfig (
+  )
+{
+  UINT16   dwEcIndexPort;
+
+  ReadPCI ((LPC_BUS_DEV_FUN << 16) + SB_LPC_REGA4, AccWidthUint16 | S3_SAVE, &dwEcIndexPort);
+  dwEcIndexPort &= ~(BIT0);
+  RWIO (dwEcIndexPort, AccWidthUint8, 0x00, 0xA5);
+}
+
+/*----------------------------------------------------------------------------------------*/
+/**
+ * ReadEC8 - Read EC register data
+ *
+ *
+ *
+ * @param[in] Address  - EC Register Offset Value
+ * @param[in] Value    - Read Data Buffer
+ *
+ */
+VOID
+ReadEC8 (
+  IN       UINT8 Address,
+  IN       UINT8* Value
+  )
+{
+  UINT16   dwEcIndexPort;
+
+  ReadPCI ((LPC_BUS_DEV_FUN << 16) + SB_LPC_REGA4, AccWidthUint16 | S3_SAVE, &dwEcIndexPort);
+  dwEcIndexPort &= ~(BIT0);
+  WriteIO (dwEcIndexPort, AccWidthUint8, &Address);
+  ReadIO (dwEcIndexPort + 1, AccWidthUint8, Value);
+}
+
+/*----------------------------------------------------------------------------------------*/
+/**
+ * WriteEC8 - Write date into EC register
+ *
+ *
+ *
+ * @param[in] Address  - EC Register Offset Value
+ * @param[in] Value    - Write Data Buffer
+ *
+ */
+VOID
+WriteEC8 (
+  IN       UINT8 Address,
+  IN       UINT8* Value
+  )
+{
+  UINT16   dwEcIndexPort;
+
+  ReadPCI ((LPC_BUS_DEV_FUN << 16) + SB_LPC_REGA4, AccWidthUint16 | S3_SAVE, &dwEcIndexPort);
+  dwEcIndexPort &= ~(BIT0);
+
+  WriteIO (dwEcIndexPort, AccWidthUint8, &Address);
+  WriteIO (dwEcIndexPort + 1, AccWidthUint8, Value);
+}
+
+/*----------------------------------------------------------------------------------------*/
+/**
+ * RWEC8 - Read/Write EC register
+ *
+ *
+ *
+ * @param[in] Address    - EC Register Offset Value
+ * @param[in] AndMask    - Data And Mask 8 bits
+ * @param[in] OrMask     - Data OR Mask 8 bits
+ *
+ */
+VOID
+RWEC8 (
+  IN       UINT8 Address,
+  IN       UINT8 AndMask,
+  IN       UINT8 OrMask
+  )
+{
+  UINT8 Result;
+  ReadEC8 (Address, &Result);
+  Result = (Result & AndMask) | OrMask;
+  WriteEC8 (Address, &Result);
+}
+
+// #endif
+