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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/usr/pnor/sfc_fake.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 "sfc_fake.H"
#include "norflash.H"
/*****************************************************************************/
// C o n s t a n t s
/*****************************************************************************/
// By default we well use the top of the cache 4MB-8MB
#define FAKE_PNOR_START (4*MEGABYTE)
#define FAKE_PNOR_END (8*MEGABYTE)
#define FAKE_PNOR_SIZE (FAKE_PNOR_END-FAKE_PNOR_START)
/*****************************************************************************/
// 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
/*****************************************************************************/
namespace PNOR {
/**
* @brief Wrapper for device driver constructor
*/
errlHndl_t create_SfcDD( SfcDD*& o_sfc,
TARGETING::Target* i_proc )
{
errlHndl_t l_err = NULL;
TRACFCOMP( g_trac_pnor, "Creating SfcFake object" );
o_sfc = new SfcFake( l_err, i_proc );
return l_err;
}
};
/**
* @brief Constructor
*/
SfcFake::SfcFake( errlHndl_t& o_err,
TARGETING::Target* i_proc )
: SfcDD(o_err,i_proc)
, iv_fakePnor(reinterpret_cast<uint8_t*>(FAKE_PNOR_START))
, iv_sizeBytes(FAKE_PNOR_SIZE)
{
TRACFCOMP( g_trac_pnor, "Instantiating SfcFake" );
}
/**
* @brief Read data from the flash
*/
errlHndl_t SfcFake::readFlash( uint32_t i_addr,
size_t i_size,
void* o_data )
{
TRACDCOMP( g_trac_pnor, "SfcFake::readFlash> i_addr=0x%.8x, i_size=0x%.8x",
i_addr, i_size );
errlHndl_t errhdl = NULL;
//create a pointer to the offset start.
uint8_t* srcPtr = reinterpret_cast<uint8_t*>(iv_fakePnor+i_addr);
if( (srcPtr+i_size) > (iv_fakePnor+iv_sizeBytes) )
{
TRACFCOMP(g_trac_pnor, "SfcFake::readFlash> Read goes past end of fake-PNOR : i_addr=0x%X, i_size=0x%X", i_addr, i_size );
/*@
* @errortype
* @moduleid PNOR::MOD_SFCFAKE_READFLASH
* @reasoncode PNOR::RC_INVALID_ADDRESS
* @userdata1[0:31] PNOR Address
* @userdata1[32:63] Bytes to read
* @userdata2[0:31] <unused>
* @userdata2[32:63] Size of allocated PNOR space
* @devdesc SfcFake::readFlash> Requested access exceeded the
* bounds of the allocated PNOR space
* @custdesc Firmware error accessing flash during IPL
*/
errhdl = new ERRORLOG::ErrlEntry(ERRORLOG::ERRL_SEV_UNRECOVERABLE,
PNOR::MOD_SFCFAKE_READFLASH,
PNOR::RC_INVALID_ADDRESS,
TWO_UINT32_TO_UINT64(i_addr,
i_size),
TWO_UINT32_TO_UINT64(0,
iv_sizeBytes),
true /*Software error*/);
}
else
{
//Read directly from memory
memcpy( o_data, srcPtr, i_size );
}
return errhdl;
}
/**
* @brief Write data into flash
*/
errlHndl_t SfcFake::writeFlash( uint32_t i_addr,
size_t i_size,
void* i_data )
{
TRACDCOMP( g_trac_pnor, "SfcFake::writeFlash> i_addr=0x%.8x, i_size=0x%.8x",
i_addr, i_size );
errlHndl_t errhdl = NULL;
//create a pointer to the offset start.
uint8_t* destPtr = reinterpret_cast<uint8_t*>(iv_fakePnor+i_addr);
if( (destPtr+i_size) > (iv_fakePnor+iv_sizeBytes) )
{
TRACFCOMP(g_trac_pnor, "SfcFake::writeFlash> Write goes past end of fake-PNOR : i_addr=0x%X, i_size=0x%X", i_addr, i_size );
/*@
* @errortype
* @moduleid PNOR::MOD_SFCFAKE_WRITEFLASH
* @reasoncode PNOR::RC_INVALID_ADDRESS
* @userdata1[0:31] PNOR Address
* @userdata1[32:63] Bytes to write
* @userdata2[0:31] <unused>
* @userdata2[32:63] Size of allocated PNOR space
* @devdesc SfcFake::writeFlash> Requested access exceeded the
* bounds of the allocated PNOR space
* @custdesc Firmware error accessing flash during IPL
*/
errhdl = new ERRORLOG::ErrlEntry(ERRORLOG::ERRL_SEV_UNRECOVERABLE,
PNOR::MOD_SFCFAKE_WRITEFLASH,
PNOR::RC_INVALID_ADDRESS,
TWO_UINT32_TO_UINT64(i_addr,
i_size),
TWO_UINT32_TO_UINT64(0,
iv_sizeBytes),
true /*Software error*/);
}
else
{
//Write directly to memory
memcpy( destPtr, i_data, i_size );
}
return errhdl;
}
/**
* @brief Erase a block of flash
*/
errlHndl_t SfcFake::eraseFlash( uint32_t i_addr )
{
TRACDCOMP( g_trac_pnor, "SfcFake::eraseFlash> i_addr=0x%.8x, i_size=0x%.8x",
i_addr );
errlHndl_t errhdl = NULL;
//create a pointer to the offset start.
uint8_t* destPtr = reinterpret_cast<uint8_t*>(iv_fakePnor+i_addr);
if( (destPtr+iv_eraseSizeBytes) > (iv_fakePnor+iv_sizeBytes) )
{
TRACFCOMP(g_trac_pnor, "SfcFake::writeFlash> Write goes past end of fake-PNOR : i_addr=0x%X, i_size=0x%X", i_addr );
/*@
* @errortype
* @moduleid PNOR::MOD_SFCFAKE_ERASEFLASH
* @reasoncode PNOR::RC_INVALID_ADDRESS
* @userdata1[0:31] PNOR Address
* @userdata1[32:63] <unused>
* @userdata2[0:31] Bytes in erase block
* @userdata2[32:63] Size of allocated PNOR space
* @devdesc SfcFake::writeFlash> Requested access exceeded the
* bounds of the allocated PNOR space
* @custdesc Firmware error accessing flash during IPL
*/
errhdl = new ERRORLOG::ErrlEntry(ERRORLOG::ERRL_SEV_UNRECOVERABLE,
PNOR::MOD_SFCFAKE_ERASEFLASH,
PNOR::RC_INVALID_ADDRESS,
TWO_UINT32_TO_UINT64(i_addr,
0),
TWO_UINT32_TO_UINT64(iv_eraseSizeBytes,
iv_sizeBytes),
true /*Software error*/);
}
else
{
//A real erase sets every bit so emulate that with a memset
memset( destPtr, 0xFF, iv_eraseSizeBytes );
}
return errhdl;
}
/**
* @brief Initialize and configure the SFC hardware
*/
errlHndl_t SfcFake::hwInit( )
{
TRACFCOMP( g_trac_pnor, "SfcFake::hwInit> Nothing to do here" );
return NULL;
}
/**
* @brief Informs caller if PNORDD is using
* L3 Cache for fake PNOR or not.
*/
bool SfcFake::usingL3Cache( void )
{
return true;
}
/**
* @brief Send a user-defined SPI command
*/
errlHndl_t SfcFake::sendSpiCmd( uint8_t i_opCode,
uint32_t i_address,
size_t i_writeCnt,
const uint8_t* i_writeData,
size_t i_readCnt,
uint8_t* o_readData )
{
TRACFCOMP( g_trac_pnor, "SfcFake::sendSpiCmd> Nothing to do here : opcode=%.2X", i_opCode );
/*@
* @errortype
* @moduleid PNOR::MOD_SFCFAKE_SENDSPICMD
* @reasoncode PNOR::RC_UNSUPPORTED_OPERATION
* @userdata1[0:31] Op Code
* @userdata1[32:63] Address
* @userdata2 <unused>
* @devdesc SfcFake::sendSpiCmd> Function is not supported
* @custdesc Firmware error accessing flash during IPL
*/
return new ERRORLOG::ErrlEntry(ERRORLOG::ERRL_SEV_UNRECOVERABLE,
PNOR::MOD_SFCFAKE_SENDSPICMD,
PNOR::RC_UNSUPPORTED_OPERATION,
TWO_UINT32_TO_UINT64(i_opCode,
i_address),
0,
true /*Software error*/);
}
/**
* @brief Return first 3 bytes of NOR chip id
*/
errlHndl_t SfcFake::getNORChipId( uint32_t& o_chipId )
{
o_chipId = PNOR::FAKE_NOR_ID;
iv_norChipId = PNOR::FAKE_NOR_ID;
return NULL;
}
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