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/*******************************************************************************
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********************************************************************************
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* Redistributions of source code must retain the above copyright notice,
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*******************************************************************************/
#include "command.h"
#include "printf.h"
#include "mvUart.h"
#include "lib_utils.h"
#include "mv_os.h"
#include "soc_spec.h"
#include "ddr3_hws_hw_training_def.h"
#include "stdint.h"
#include "gtOs/mvXor.h"
#include "gtOs/mvXorRegs.h"
#include "stdlib.h"
#include "util.h"
#include "xor_memtest.h"
extern GT_U32 mvHwsDdr3TipMaxCSGet(GT_U32 devNum);
/*******************************************************************************
* fillKillerPattern
*
* DESCRIPTION:
* Writes the killer pattern in the specified source address in DRAM
*
* INPUT:
* nBase - base address to start writing to
* nSize - size of the block in bytes
* nbusWidth - bus width, must be multiply of 32
*
*******************************************************************************/
void fillKillerPattern(MV_U32 nBase, MV_U32 nSize, MV_U32 nbusWidth)
{
MV_U8 killerPatternBusState[ST_KP_LEN] = KILLER_PATTERN_BUS_STATE;
MV_U8 killerPatternBitState[ST_KP_LEN] = KILLER_PATTERN_BIT_STATE;
MV_U32 nOffset = 0;
MV_U32 nNumOfWord = nbusWidth / 32;
MV_U32 nPattern;
MV_U32 nIndex = 0;
MV_U32 nVicBit = BIT0;
MV_U32 nVicWord = 0;
MV_U32 nWord;
while (nOffset < nSize) {
if (nIndex == ST_KP_LEN) {
nIndex = 0;
nVicBit <<= 1;
if (nVicBit == 0) {
nVicBit = BIT0;
nVicWord++;
if (nVicWord == nNumOfWord)
nVicWord = 0;
}
}
for (nWord = 0; ((nWord < nNumOfWord) && (nOffset < nSize)); nWord++, nOffset += 0x4) {
nPattern = BUS_STATUS(killerPatternBusState[nIndex]);
if (nWord == nVicWord)
nPattern = ((killerPatternBitState[nIndex]) ?
(nPattern | nVicBit) : (nPattern & ~nVicBit));
MV_MEMIO_LE32_WRITE(nBase + nOffset, nPattern);
}
nIndex++;
}
}
/*******************************************************************************
* configureMemoryMapping
*
* DESCRIPTION:
* Opens memory windows in the XOR Engine to the DRAM and SRAM
*
*******************************************************************************/
void configureMemoryMapping()
{
MV_U32 max_cs;
MV_U32 uiCsEna = 0, cs_c;
#ifndef MV88F672X
max_cs = mvHwsDdr3TipMaxCSGet(0);
#else
max_cs = 2;
#endif
for (cs_c = 0; cs_c < max_cs; cs_c++)
uiCsEna |= 1 << cs_c;
/* enable SRAM window */
uiCsEna |= 1 << SRAM_WIN_ID;
max_cs++;
/* configure XOR engine windows */
mvSysXorInit(max_cs, uiCsEna, 0x80000000, 0);
/* shrink first DRAM(CS0) window to 0x40000000 (bytes)
* to avoid memory mapping conflict:
* First DRAM(CS0) window starts in 0x0 and ends in 0x80000000
* SRAM window starts in 0x40000000
* Hence, there is a conflict */
MV_REG_WRITE(XOR_SIZE_MASK_REG(0, 0), 0x3FFF0000);
}
/*******************************************************************************
* XORCalculateCRC
*
* DESCRIPTION:
* Calculates crc32c using the XOR engine
*
* INPUT:
* nChannel - channel number (0..3)
* nSrcAddr - source address
* nByteCnt - size of the block in bytes
*
* OUTPUT:
* res - crc32c result
*
* RETURN:
* MV_ERROR, in case of any error in calculation
* MV_OK, otherwise
*
*******************************************************************************/
MV_STATUS XORCalculateCRC(MV_U32 nChannel, MV_U32 nSrcAddr, MV_U32 nByteCnt, MV_U32 *res)
{
MV_U32 nTimeout = XOR_ENGINE_TIMEOUT;
MV_XOR_DESC XorDesc;
MV_XOR_DESC *pXorDesc = &XorDesc;
MV_U32 nXorChannel = XOR_CHAN(nChannel);
/* align pointer address to be multiple of 32 */
pXorDesc = (MV_XOR_DESC *)(((MV_U32)((void *)pXorDesc + 32)) & ~(32 - 1));
memset((void *)pXorDesc, 0, sizeof(MV_CRC_DMA_DESC));
/* clean previous indication from engine */
MV_REG_WRITE(XOR_CAUSE_REG(XOR_UNIT(nChannel)), 0);
memset((void *)pXorDesc, 0, sizeof(MV_CRC_DMA_DESC));
pXorDesc->srcAdd0 = nSrcAddr;
pXorDesc->byteCnt = nByteCnt;
pXorDesc->descCommand = BIT30;
pXorDesc->phyNextDescPtr = 0;
pXorDesc->status = BIT31;
pXorDesc->crc32Result = 0;
/* wait for previous transfer to finnish */
while (mvXorStateGet(nChannel) != MV_IDLE)
;
/* disable address override */
MV_REG_WRITE(XOR_OVERRIDE_CTRL_REG(nChannel), 0x0);
if (mvXorTransfer(nChannel, MV_CRC32, (MV_U32)pXorDesc) != MV_OK) {
mvPrintf("%s: Error during XOR CRC...!\n", __func__);
return MV_ERROR;
}
/* wait for the engine to finish */
while ((MV_REG_READ(XOR_CAUSE_REG(XOR_UNIT(nChannel))) & ((BIT1|BIT0) << (16*nXorChannel))) == 0) {
if (nTimeout-- == 0) {
mvPrintf("%s: XOR CRC timeout!!\n", __func__);
return MV_ERROR;
}
}
nTimeout = XOR_ENGINE_TIMEOUT;
while (mvXorStateGet(nChannel) != MV_IDLE) {
if (nTimeout-- == 0) {
mvPrintf("%s: XOR CRC timeout 0!!\n", __func__);
return MV_ERROR;
}
}
*res = pXorDesc->crc32Result;
return MV_OK;
}
/*******************************************************************************
* do_xorMemTest
*
* DESCRIPTION:
* The command run memory test that is based on the XOR engine
*
*******************************************************************************/
int do_xorMemTest(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
MV_STATUS status;
MV_U32 nBlockCRC, nOffsetInDest, nOffset, nCRC, i, nSourceAddr, nDestAddr;
MV_U32 sourceBase = SOURCE_ADDRESS_BASE;
MV_U32 destBase = DESTANTION_ADDRESS_BASE;
MV_U32 destSize = DESTANTION_SIZE;
MV_U32 iterations = 1;
if (argc > 1)
nSourceAddr = simple_strtoul(argv[1], NULL, 16);
if (argc > 2)
nDestAddr = simple_strtoul(argv[2], NULL, 16);
if (argc > 3)
destSize = simple_strtoul(argv[3], NULL, 16);
if (argc > 4)
iterations = simple_strtoul(argv[4], NULL, 16);
/* check destSize, must be multiply of 1MB */
if (destSize & (_1M - 1)) {
mvPrintf("Error: Destination size must be multiply of 0x%X(1MB)\n", _1M);
mvSysXorFinish();
return -1;
}
configureMemoryMapping();
/* write the killer pattern in the source block */
fillKillerPattern(sourceBase, BLOCK_SIZE, 64);
fillKillerPattern(sourceBase + BLOCK_SIZE, BLOCK_SIZE, 128);
status = XORCalculateCRC(2, sourceBase, TOTAL_BLOCK_SIZE, &nBlockCRC);
CHECK_CRC_STATUS(status);
mvPrintf("nBlockCRC %x\n", nBlockCRC);
/* Start copying blocks */
for (i = 0; i < iterations; i++) {
for (nOffsetInDest = 0; nOffsetInDest < destSize; nOffsetInDest += TOTAL_BLOCK_SIZE) {
/* Copy block to the current destination address*/
for (nOffset = 0; nOffset < TOTAL_BLOCK_SIZE; nOffset += CPU_BURST_SIZE) {
nSourceAddr = sourceBase + nOffset;
nDestAddr = destBase + nOffsetInDest + nOffset;
MV_PLD_RANGE(nDestAddr, nDestAddr + CPU_BURST_SIZE);
memcpy((void *)nDestAddr, (void *)nSourceAddr, CPU_BURST_SIZE);
MV_FLUSH_CACHE_L1(nDestAddr, nDestAddr + CPU_BURST_SIZE);
}
}
/* Check the copied blocks in destination */
for (nOffsetInDest = 0; nOffsetInDest < destSize; nOffsetInDest += TOTAL_BLOCK_SIZE) {
nDestAddr = destBase + nOffsetInDest;
status = XORCalculateCRC(2, nDestAddr, TOTAL_BLOCK_SIZE, &nCRC);
CHECK_CRC_STATUS(status);
if (nCRC != nBlockCRC) {
mvPrintf("Error at Block start address %X\n", nDestAddr);
mvPrintf("CRC was %X expected %X\n", nCRC, nBlockCRC);
mvSysXorFinish();
return -1;
}
}
mvPrintf("\b\b\b\b%4d", i);
}
mvPrintf("\b\b\b\b");
mvPrintf("MemTest end successfully\n");
mvSysXorFinish();
return 0;
}