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Merge "drivers: mtd: qpic_nand: Read one complete page for serial trainig"

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Linux Build Service Account 2020-12-22 19:09:01 -08:00 • committed by Gerrit - the friendly Code Review server
commit 05a60f1d5a
1 changed files with 20 additions and 19 deletions
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33
drivers/mtd/nand/qpic_nand.c
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@ -4133,7 +4133,7 @@ static int qpic_execute_serial_training(struct mtd_info *mtd)
unsigned int start, blk_cnt = 0;
unsigned int offset, pageno, curr_freq;
int size = sizeof(training_block_128);
int i;
unsigned int io_macro_freq_tbl[] = {24000000, 100000000, 200000000, 320000000};
unsigned char *data_buff, trained_phase[TOTAL_NUM_PHASE] = {'\0'};
@ -4187,15 +4187,16 @@ static int qpic_execute_serial_training(struct mtd_info *mtd)
goto err;
}
data_buff = (unsigned char *)malloc(size);
data_buff = (unsigned char *)malloc(mtd->writesize);
if (!data_buff) {
printf("Errorn in allocating memory.\n");
ret = -ENOMEM;
goto err;
}
/* prepare clean buffer */
memset(data_buff, 0xff, size);
memcpy(data_buff, training_block_128, size);
memset(data_buff, 0xff, mtd->writesize);
for (i = 0; i < mtd->writesize; i += sizeof(training_block_64))
memcpy(data_buff + i, training_block_64, sizeof(training_block_64));
/*write training data to flash */
ret = NANDC_RESULT_SUCCESS;
@ -4207,7 +4208,7 @@ static int qpic_execute_serial_training(struct mtd_info *mtd)
memset(dev->pad_oob, 0xFF, dev->oob_per_page);
ops.mode = MTD_OPS_AUTO_OOB;
ops.len = size;
ops.len = mtd->writesize;
ops.retlen = 0;
ops.ooblen = dev->oob_per_page;
ops.oobretlen = 0;
@ -4224,7 +4225,7 @@ static int qpic_execute_serial_training(struct mtd_info *mtd)
/* After write verify the the data with read @ lower frequency
* after that only start serial tarining @ higher frequency
*/
memset(data_buff, 0xff, size);
memset(data_buff, 0xff, mtd->writesize);
ops.datbuf = (uint8_t *)data_buff;
ret = qpic_nand_read_page(mtd, pageno, NAND_CFG, &ops);
@ -4234,10 +4235,12 @@ static int qpic_execute_serial_training(struct mtd_info *mtd)
}
/* compare original data and read data */
if (memcmp(data_buff, training_block_128, size)) {
for (i = 0; i < mtd->writesize; i += sizeof(training_block_64)) {
if (memcmp(data_buff + i, training_block_64, sizeof(training_block_64))) {
printf("Training data read failed @ lower frequency\n");
goto free;
}
}
/* disable feed back clock bit to start serial training */
qpic_reg_write_bam(NAND_QSPI_MSTR_CONFIG,
@ -4258,7 +4261,7 @@ rettry:
/* set the phase */
qpic_set_phase(phase);
memset(data_buff, 0, size);
memset(data_buff, 0, mtd->writesize);
ops.datbuf = (uint8_t *)data_buff;
ret = qpic_nand_read_page(mtd, pageno, NAND_CFG, &ops);
@ -4267,17 +4270,15 @@ rettry:
goto free;
}
/* compare original data and read data */
if (memcmp(data_buff, training_block_128, size)) {
/* wrong data read on one of miso line
* change the phase value and try again
*/
for (i = 0; i < mtd->writesize; i += sizeof(training_block_64)) {
if (memcmp(data_buff + i, training_block_64, sizeof(training_block_64))) {
phase_failed++;
} else {
/* we got good phase update the good phase list
*/
break;
}
}
if (i == mtd->writesize)
trained_phase[phase_cnt++] = phase;
/*printf("%s : Found good phase %d\n",__func__,phase);*/
}
} while (phase++ < TOTAL_NUM_PHASE);