This patch bypasses the limitation of length for read operations in MTD test module. Thus, the total length of a read operation can be passed down to the continuous read operation in SPI NAND layer.
Signed-off-by: Leo Yu <[email protected]> --- cmd/mtd.c | 2 ++ include/linux/mtd/mtd.h | 2 ++ 2 files changed, 4 insertions(+) diff --git a/cmd/mtd.c b/cmd/mtd.c index ad5cc9827d..0b601e08a3 100644 --- a/cmd/mtd.c +++ b/cmd/mtd.c @@ -335,6 +335,8 @@ static int do_mtd_io(struct cmd_tbl *cmdtp, int flag, int argc, io_op.ooblen = woob ? mtd->oobsize : 0; io_op.datbuf = buf; io_op.oobbuf = woob ? &buf[len] : NULL; + /* Total length of this read operation passed by user */ + io_op.totallen = len; /* Search for the first good block after the given offset */ off = start_off; diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h index ff635bd716..df8a231c82 100644 --- a/include/linux/mtd/mtd.h +++ b/include/linux/mtd/mtd.h @@ -79,6 +79,7 @@ struct mtd_erase_region_info { * mode = MTD_OPS_PLACE_OOB or MTD_OPS_RAW) * @datbuf: data buffer - if NULL only oob data are read/written * @oobbuf: oob data buffer + * @totallen: total number of data bytes to read in one read operation (for continuous read mode) */ struct mtd_oob_ops { unsigned int mode; @@ -89,6 +90,7 @@ struct mtd_oob_ops { uint32_t ooboffs; uint8_t *datbuf; uint8_t *oobbuf; + size_t totallen; }; #ifdef CONFIG_SYS_NAND_MAX_OOBFREE -- 2.17.1
