Split out SFC logic and add support for AST2400

Refactored the PNOR device driver to pull all SFC-specific
code into a new set of classes.  Any time a new type of
serial flash controller (SFC) is introduced, a new subclass
should be created to support it.
Also added the full support for the AST2400 BMC that is
being used on Palmetto.

Change-Id: I9cdbf9b48bbf94615a39804920e170a3142ec386
Origin: Google Shared Technology
RTC: 97493
Reviewed-on: http://gfw160.aus.stglabs.ibm.com:8080/gerrit/13229
Tested-by: Jenkins Server
Reviewed-by: A. Patrick Williams III <iawillia@us.ibm.com>

1 files changed, 120 insertions, 0 deletions

diff --git a/src/usr/pnor/sfcdd.C b/src/usr/pnor/sfcdd.C
new file mode 100644
index 000000000..0aad547c1
--- /dev/null
+++ b/src/usr/pnor/sfcdd.C
@@ -0,0 +1,120 @@
+/* IBM_PROLOG_BEGIN_TAG                                                   */
+/* This is an automatically generated prolog.                             */
+/*                                                                        */
+/* $Source: src/usr/pnor/sfcdd.C $                                        */
+/*                                                                        */
+/* OpenPOWER HostBoot Project                                             */
+/*                                                                        */
+/* Contributors Listed Below - COPYRIGHT 2014                             */
+/* [+] Google Inc.                                                        */
+/* [+] International Business Machines Corp.                              */
+/*                                                                        */
+/*                                                                        */
+/* Licensed under the Apache License, Version 2.0 (the "License");        */
+/* you may not use this file except in compliance with the License.       */
+/* You may obtain a copy of the License at                                */
+/*                                                                        */
+/*     http://www.apache.org/licenses/LICENSE-2.0                         */
+/*                                                                        */
+/* Unless required by applicable law or agreed to in writing, software    */
+/* distributed under the License is distributed on an "AS IS" BASIS,      */
+/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or        */
+/* implied. See the License for the specific language governing           */
+/* permissions and limitations under the License.                         */
+/*                                                                        */
+/* IBM_PROLOG_END_TAG                                                     */
+/*****************************************************************************/
+// I n c l u d e s
+/*****************************************************************************/
+#include <sys/mmio.h>
+#include <sys/task.h>
+#include <sys/sync.h>
+#include <string.h>
+#include <devicefw/driverif.H>
+#include <trace/interface.H>
+#include <errl/errlentry.H>
+#include <errl/errlmanager.H>
+#include <errl/errludlogregister.H>
+#include <targeting/common/targetservice.H>
+#include <pnor/pnor_reasoncodes.H>
+#include <sys/time.h>
+#include <lpc/lpcif.H>
+#include "sfcdd.H"
+#include "norflash.H"
+
+
+/*****************************************************************************/
+// C o n s t a n t s
+/*****************************************************************************/
+
+
+
+
+/*****************************************************************************/
+// G l o b a l s
+/*****************************************************************************/
+
+// Initialized in pnorrp.C
+extern trace_desc_t* g_trac_pnor;
+
+
+/*****************************************************************************/
+// M e t h o d s
+/*****************************************************************************/
+
+/**
+ * @brief Constructor
+ */
+SfcDD::SfcDD( errlHndl_t& o_err,
+              TARGETING::Target* i_proc )
+: iv_proc(i_proc)
+, iv_flashWorkarounds(PNOR::HWWK_NO_WORKAROUNDS)
+, iv_norChipId(PNOR::UNKNOWN_NOR_ID)
+, iv_eraseSizeBytes(4*KILOBYTE) //default to 4KB blocks
+{
+    o_err = NULL;
+}
+
+/**
+ * @brief Destructor
+ */
+SfcDD::~SfcDD()
+{
+    // Nothing to do by default
+}
+
+/**
+ * @brief Read the NOR FLash ChipID
+ */
+errlHndl_t SfcDD::getNORChipId(uint32_t& o_chipId)
+{
+    errlHndl_t l_err = NULL;
+
+    if( iv_norChipId == PNOR::UNKNOWN_NOR_ID )
+    {
+        o_chipId = 0;
+        l_err = sendSpiCmd( PNOR::SPI_JEDEC_CHIPID,
+                            SfcDD::NO_ADDRESS,
+                            0, NULL,
+                            4, reinterpret_cast<uint8_t*>(&o_chipId) );
+        if( !l_err )
+        {
+            // Only look at first 3 bytes of chipid
+            iv_norChipId = o_chipId & PNOR::ID_MASK;
+        }
+    }
+
+    o_chipId = iv_norChipId;
+    TRACFCOMP( g_trac_pnor, "SfcDD::getNORChipId> chipid=%.8X", o_chipId );
+    return l_err;
+}
+
+/**
+ * @brief Informs caller if PNORDD is using
+ *        L3 Cache for fake PNOR or not.
+ */
+bool SfcDD::usingL3Cache( void )
+{
+    // by default we are not using the L3
+    return false;
+}