SB700 southbridge: AMD SB700/SP5100 southbridge CIMX code

Support AMD SB700 and SP5100 chipsets.

Change-Id: I0955abf7f48a79483f624b46a61b22711315f888
Signed-off-by: Kerry Sheh <kerry.she@amd.com>
Signed-off-by: Kerry Sheh <shekairui@gmail.com>
Reviewed-on: http://review.coreboot.org/560
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>

1 files changed, 120 insertions, 0 deletions

diff --git a/src/vendorcode/amd/cimx/sb700/ACPILIB.c b/src/vendorcode/amd/cimx/sb700/ACPILIB.c
new file mode 100644
index 0000000000..807b166146
--- /dev/null
+++ b/src/vendorcode/amd/cimx/sb700/ACPILIB.c
@@ -0,0 +1,120 @@
+/*****************************************************************************
+ *
+ * Copyright (C) 2012 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	"Platform.h"
+
+/*++
+
+Routine Description:
+
+  Locate ACPI table
+
+Arguments:
+
+  Signature - table signature
+
+Returns:
+
+  pointer to ACPI table
+
+--*/
+void* ACPI_LocateTable(
+	UINT32 Signature
+)
+{
+	UINT32	i;
+	UINT32* RsdPtr = (UINT32*)0xe0000;
+	UINT32* Rsdt = NULL;
+	DESCRIPTION_HEADER* CurrentTable;
+	do{
+//		if (*RsdPtr == ' DSR' && *(RsdPtr+1) == ' RTP'){
+		if ((*RsdPtr == Int32FromChar ('R', 'S', 'D', ' ')) && (*(RsdPtr+1) == Int32FromChar ('R', 'T', 'P', ' '))){
+			Rsdt = (UINT32*)((RSDP*)RsdPtr)->RsdtAddress;
+			break;
+		}
+		RsdPtr+=4;
+	}while (RsdPtr <= (UINT32*)0xffff0);
+	if(Rsdt != NULL && ACPI_GetTableChecksum(Rsdt)==0){
+		for (i = 0;i < (((DESCRIPTION_HEADER*)Rsdt)->Length - sizeof(DESCRIPTION_HEADER))/4;i++){
+			CurrentTable = (DESCRIPTION_HEADER*)*(UINT32*)((UINT8*)Rsdt + sizeof(DESCRIPTION_HEADER) + i*4);
+			if (CurrentTable->Signature == Signature) return CurrentTable;
+		}
+	}
+	return NULL;
+}
+
+/*++
+
+Routine Description:
+
+  Update table checksum
+
+Arguments:
+
+  TablePtr - table pointer
+
+Returns:
+
+  none
+
+--*/
+void  ACPI_SetTableChecksum(
+	void* TablePtr
+)
+{
+	UINT8 Checksum = 0;
+	((DESCRIPTION_HEADER*)TablePtr)->Checksum = 0;
+	Checksum = ACPI_GetTableChecksum(TablePtr);
+	((DESCRIPTION_HEADER*)TablePtr)->Checksum = 0x100 - Checksum;
+}
+
+/*++
+
+Routine Description:
+
+  Get table checksum
+
+Arguments:
+
+  TablePtr - table pointer
+
+Returns:
+
+  none
+
+--*/
+UINT8  ACPI_GetTableChecksum(
+	void* TablePtr
+)
+{
+	return GetByteSum(TablePtr,((DESCRIPTION_HEADER*)TablePtr)->Length);
+}
+