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, 179 insertions, 0 deletions

diff --git a/src/vendorcode/amd/cimx/sb900/AcpiLib.c b/src/vendorcode/amd/cimx/sb900/AcpiLib.c
new file mode 100755
index 0000000000..90b331d535
--- /dev/null
+++ b/src/vendorcode/amd/cimx/sb900/AcpiLib.c
@@ -0,0 +1,179 @@
+/*;********************************************************************************
+;
+; 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"
+
+//
+//
+// Routine Description:
+//
+//  Locate ACPI table
+//
+// Arguments:
+//
+//  Signature - table signature
+//
+//Returns:
+//
+//  pointer to ACPI table
+//
+//
+VOID*
+ACPI_LocateTable (
+  IN       unsigned int Signature
+  )
+{
+  UINT32  i;
+  UINT32* RsdPtr;
+  UINT32* Rsdt;
+  UINTN   tableOffset;
+  DESCRIPTION_HEADER* CurrentTable;
+  RsdPtr = (UINT32*) (UINTN)0xe0000;
+  Rsdt = NULL;
+  do {
+//    if ( *RsdPtr == ' DSR' && *(RsdPtr + 1) == ' RTP' ) {
+//    if ( (*RsdPtr == 0x52534420) && (*(RsdPtr + 1) == 0x50545220) ) {
+    if ( (*RsdPtr == 0x20445352) && (*(RsdPtr + 1) == 0x20525450) ) {
+      Rsdt = (UINT32*) (UINTN) ((RSDP*)RsdPtr)->RsdtAddress;
+      break;
+    }
+    RsdPtr += 4;
+  } while ( RsdPtr <= (UINT32*) (UINTN)0xffff0 );
+  if ( Rsdt != NULL && ACPI_GetTableChecksum (Rsdt) == 0 ) {
+    for ( i = 0; i < (((DESCRIPTION_HEADER*)Rsdt)->Length - sizeof (DESCRIPTION_HEADER)) / 4; i++ ) {
+      tableOffset = *(UINTN*) ((UINT8*)Rsdt + sizeof (DESCRIPTION_HEADER) + i * 4);
+      CurrentTable = (DESCRIPTION_HEADER*)tableOffset;
+      if ( CurrentTable->Signature == Signature ) {
+        return CurrentTable;
+      }
+    }
+  }
+  return NULL;
+}
+
+//
+//
+//  Routine Description:
+//
+//  Update table checksum
+//
+//  Arguments:
+//
+//  TablePtr - table pointer
+//
+//  Returns:
+//
+//  none
+//
+//
+VOID
+ACPI_SetTableChecksum (
+  IN       VOID* TablePtr
+  )
+{
+  UINT8 Checksum;
+  Checksum = 0;
+  ((DESCRIPTION_HEADER*)TablePtr)->Checksum = 0;
+  Checksum = ACPI_GetTableChecksum (TablePtr);
+  ((DESCRIPTION_HEADER*)TablePtr)->Checksum = (UINT8) (0x100 - Checksum);
+}
+
+//
+//
+//  Routine Description:
+//
+//  Get table checksum
+//
+//  Arguments:
+//
+//  TablePtr - table pointer
+//
+//  Returns:
+//
+//  none
+//
+//
+UINT8
+ACPI_GetTableChecksum (
+  IN       VOID* TablePtr
+  )
+{
+  return GetByteSum (TablePtr, ((DESCRIPTION_HEADER*)TablePtr)->Length);
+}
+
+
+UINT8
+GetByteSum (
+  IN       VOID* pData,
+  IN       UINT32 Length
+  )
+{
+  UINT32  i;
+  UINT8 Checksum;
+  Checksum = 0;
+  for ( i = 0; i < Length; i++ ) {
+    Checksum = Checksum + (*((UINT8*)pData + i));
+  }
+  return Checksum;
+}
+VOID
+GetSbAcpiMmioBase (
+  OUT     UINT32*    AcpiMmioBase
+  )
+{
+  UINT32    Value16;
+
+  ReadPMIO (SB_PMIOA_REG24 + 2, AccWidthUint16, &Value16);
+  *AcpiMmioBase = Value16 << 16;
+}
+
+VOID
+GetSbAcpiPmBase (
+  OUT     UINT16*    AcpiPmBase
+  )
+{
+  ReadPMIO (SB_PMIOA_REG60, AccWidthUint16, AcpiPmBase);
+}
+
+VOID
+SetAcpiPma (
+  IN     UINT8    pmaControl
+  )
+{
+  UINT16 pmaBase;
+  UINT16 dwValue;
+  ReadMEM (ACPI_MMIO_BASE + PMIO_BASE + SB_PMIOA_REG74, AccWidthUint16, &dwValue);
+  dwValue &= ~BIT6;
+  WriteMEM (ACPI_MMIO_BASE + PMIO_BASE + SB_PMIOA_REG74, AccWidthUint16, &dwValue);
+  ReadMEM (ACPI_MMIO_BASE + PMIO_BASE + SB_PMIOA_REG6E, AccWidthUint16, &pmaBase);
+  WriteIo8 (pmaBase, pmaControl);
+  RWMEM (ACPI_MMIO_BASE + SMI_BASE + SB_PMIOA_REG98 + 3, AccWidthUint8, ~BIT7, pmaControl << 7);
+}
+