AGESA F15: AMD family15 AGESA code

AMD AGESA code to support Orochi platform family15 model 00-0fh processores,
AMD C32, G34, and AM3r2 Sockets are supported.

Change-Id: If79392c104ace25f7e01db794fa205f47746bcad
Signed-off-by: Kerry Sheh <kerry.she@amd.com>
Signed-off-by: Kerry Sheh <shekairui@gmail.com>
Reviewed-on: http://review.coreboot.org/554
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

1 files changed, 148 insertions, 0 deletions

diff --git a/src/vendorcode/amd/agesa/f15/Proc/HT/Fam15/htNbOptimizationFam15.c b/src/vendorcode/amd/agesa/f15/Proc/HT/Fam15/htNbOptimizationFam15.c
new file mode 100644
index 0000000000..75595c4959
--- /dev/null
+++ b/src/vendorcode/amd/agesa/f15/Proc/HT/Fam15/htNbOptimizationFam15.c
@@ -0,0 +1,148 @@
+/* $NoKeywords:$ */
+/**
+ * @file
+ *
+ * Link optimization support specific to family 15h processors.
+ *
+ * @xrefitem bom "File Content Label" "Release Content"
+ * @e project:      AGESA
+ * @e sub-project:  HyperTransport
+ * @e \$Revision: 44324 $   @e \$Date: 2010-12-22 02:16:51 -0700 (Wed, 22 Dec 2010) $
+ *
+ */
+/*
+*****************************************************************************
+*
+* 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.
+*
+* ***************************************************************************
+*
+*/
+
+/*
+ *----------------------------------------------------------------------------
+ *                                MODULES USED
+ *
+ *----------------------------------------------------------------------------
+ */
+
+
+
+#include "AGESA.h"
+#include "Ids.h"
+#include "Topology.h"
+#include "htFeat.h"
+#include "htInterface.h"
+#include "htNb.h"
+#include "htNbOptimizationFam15.h"
+#include "Filecode.h"
+CODE_GROUP (G2_PEI)
+RDATA_GROUP (G2_PEI)
+#define FILECODE PROC_HT_FAM15_HTNBOPTIMIZATIONFAM15_FILECODE
+/*----------------------------------------------------------------------------
+ *                          DEFINITIONS AND MACROS
+ *
+ *----------------------------------------------------------------------------
+ */
+
+/*----------------------------------------------------------------------------------------*/
+/**
+ * Northbridge specific Frequency limit.
+ *
+ * @HtNbMethod{::F_NORTH_BRIDGE_FREQ_MASK}
+ *
+ * Return a mask that eliminates HT frequencies that cannot be used due to a slow
+ * northbridge frequency.
+ *
+ * @param[in]     Node             Result could (later) be for a specific Node
+ * @param[in]     Interface        Access to non-HT support functions.
+ * @param[in]     PlatformConfig   Platform profile/build option config structure.
+ * @param[in]     Nb               this northbridge
+ *
+ * @return Frequency mask
+ */
+UINT32
+Fam15NorthBridgeFreqMask (
+  IN       UINT8        Node,
+  IN       HT_INTERFACE *Interface,
+  IN       PLATFORM_CONFIGURATION *PlatformConfig,
+  IN       NORTHBRIDGE  *Nb
+  )
+{
+  UINT32 NbCoreFreq;
+  UINT32 Supported;
+
+  ASSERT (Node < MAX_NODES);
+  ASSERT (Interface != NULL);
+  // The interface to power management will return a system based result.
+  // So we only need to call it once, not on every link.  Save the answer,
+  // and check to see if we can use a saved answer on subsequent calls.
+  //
+  if (Nb->CoreFrequency == 0) {
+    NbCoreFreq = Interface->GetMinNbCoreFreq (PlatformConfig, Nb->ConfigHandle);
+    NbCoreFreq = (NbCoreFreq / 100);
+    ASSERT (NbCoreFreq != 0);
+    Nb->CoreFrequency = NbCoreFreq;
+  } else {
+    NbCoreFreq = Nb->CoreFrequency;
+  }
+
+  // The Ht frequency can go twice the Nb COF, as long as it's HT3.
+  // (side note: we are not speculatively upgrading HT1 at 6 .. 10 to HT3,
+  //  to avoid complicated recovery if the final speed is HT1.)
+  if (NbCoreFreq > 10) {
+    NbCoreFreq = NbCoreFreq * 2;
+  }
+  //
+  // NbCoreFreq is minimum northbridge speed in hundreds of MHz.
+  // HT can not go faster than the minimum speed of the northbridge.
+  //
+  if ((NbCoreFreq >= 6) && (NbCoreFreq <= 26)) {
+    //  Convert frequency to bit and all less significant bits,
+    // by setting next power of 2 and subtracting 1.
+    //
+    Supported = ((UINT32)1 << ((NbCoreFreq >> 1) + 2)) - 1;
+  } else if ((NbCoreFreq > 26) && (NbCoreFreq <= 32)) {
+    // Convert frequency to bit and all less significant bits,
+    // by setting next power of 2 and subtracting 1, noting that
+    // next power of two is two greater than non-extended frequencies
+    // (because of the register break).
+    //
+    Supported = ((UINT32)1 << ((NbCoreFreq >> 1) + 4)) - 1;
+  } else if (NbCoreFreq > 32) {
+    Supported = HT_FREQUENCY_LIMIT_MAX;
+  } else if (NbCoreFreq == 4) {
+    // unlikely cases, but include as a defensive measure, also avoid trick above
+    Supported = HT_FREQUENCY_LIMIT_400M;
+  } else if (NbCoreFreq == 2) {
+    Supported = HT_FREQUENCY_LIMIT_200M;
+  } else {
+    ASSERT (FALSE);
+    Supported = HT_FREQUENCY_LIMIT_200M;
+  }
+
+  return (Supported);
+}