[PATCH v2 3/3] mtd: spi-nand: winbond: Enable the DQS pin on W35N**JW series
Miquel Raynal <[email protected]>
| Newsgroups | gmane.linux.kernel,gmane.linux.kernel.spi.devel,gmane.linux.drivers.mtd |
|---|---|
| Message-ID | <20260807-winbond-nand-next-phy-tuning-v2-3-73595e89d6e3@bootlin.com> |
These chips have a DQS pin, enable it by default in DTR mode because there is apparently no issue in setting it for lower frequencies, and the extra power consumption seems very low compared to the current drawn by the NAND array itself while operating. This setting will be required for high speed I/O transfers (with PHY tuning). Signed-off-by: Miquel Raynal <[email protected]> --- drivers/mtd/nand/spi/winbond.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/mtd/nand/spi/winbond.c b/drivers/mtd/nand/spi/winbond.c index 9b78c1e6cbc9..8209b214e594 100644 --- a/drivers/mtd/nand/spi/winbond.c +++ b/drivers/mtd/nand/spi/winbond.c @@ -607,7 +607,7 @@ static int w35n0xjw_vcr_cfg(struct spinand_device *spinand, else if (!single && !dtr) io_mode = W35N01JW_VCR_IO_MODE_OCTAL_SDR; else if (!single && dtr) - io_mode = W35N01JW_VCR_IO_MODE_OCTAL_DDR; + io_mode = W35N01JW_VCR_IO_MODE_OCTAL_DDR_DS; else return -EINVAL; @@ -689,7 +689,7 @@ static const struct spinand_info winbond_spinand_table[] = { &write_cache_octal_variants, &update_cache_octal_variants, &cont_read_cache_octal_variants), - 0, + SPINAND_HAS_DQS, SPINAND_INFO_VENDOR_OPS(&winbond_w35_ops), SPINAND_ECCINFO(&w35n01jw_ooblayout, w25w35nxxjw_ecc_get_status), SPINAND_CONFIGURE_CHIP(w35n0xjw_vcr_cfg), @@ -744,7 +744,7 @@ static const struct spinand_info winbond_spinand_table[] = { &write_cache_octal_variants, &update_cache_octal_variants, &cont_read_cache_octal_variants), - SPINAND_ODTR_PACKED_PAGE_READ, + SPINAND_ODTR_PACKED_PAGE_READ | SPINAND_HAS_DQS, SPINAND_INFO_VENDOR_OPS(&winbond_w35_ops), SPINAND_ECCINFO(&w35n01jw_ooblayout, w25w35nxxjw_ecc_get_status), SPINAND_CONFIGURE_CHIP(w35n0xjw_vcr_cfg), @@ -776,7 +776,7 @@ static const struct spinand_info winbond_spinand_table[] = { &write_cache_octal_variants, &update_cache_octal_variants, &cont_read_cache_octal_variants), - SPINAND_ODTR_PACKED_PAGE_READ, + SPINAND_ODTR_PACKED_PAGE_READ | SPINAND_HAS_DQS, SPINAND_INFO_VENDOR_OPS(&winbond_w35_ops), SPINAND_ECCINFO(&w35n01jw_ooblayout, w25w35nxxjw_ecc_get_status), SPINAND_CONFIGURE_CHIP(w35n0xjw_vcr_cfg), -- 2.54.0