[PATCH v5 13/28] mtd: spi-nor: winbond: W25Q32JV-M: Add quad page program capability
Miquel Raynal <[email protected]>
| Newsgroups | org.infradead.lists.linux-mtd,org.kernel.vger.linux-kernel |
|---|---|
| Message-ID | <20260805-winbond-v7-1-spi-nor-jv-cleanup-v5-13-87238e577794@bootlin.com> |
This chip does not advertise it correctly but it supports 1-1-4 page programs. Before: $ flash_speed /dev/mtd0 -d -c10 eraseblock write speed is 2612 KiB/s page write speed is 2509 KiB/s 2 page write speed is 2560 KiB/s After: $ flash_speed /dev/mtd0 -c10 -d eraseblock write speed is 3033 KiB/s page write speed is 2895 KiB/s 2 page write speed is 2976 KiB/s The QUAD_PP capability was historically not supported by non-SFDP chips, so a Winbond wide late hook already makes sure the capability remains disabled for them, for backward compatibility reasons. Signed-off-by: Miquel Raynal <[email protected]> --- drivers/mtd/spi-nor/winbond.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mtd/spi-nor/winbond.c b/drivers/mtd/spi-nor/winbond.c index f7cdbf1a56a5..456050fdd251 100644 --- a/drivers/mtd/spi-nor/winbond.c +++ b/drivers/mtd/spi-nor/winbond.c @@ -307,8 +307,8 @@ static const struct flash_info winbond_nor_parts[] = { .id = SNOR_ID(0xef, 0x70, 0x16), .name = "w25q32jv", .size = SZ_4M, - .flags = SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB, .no_sfdp_flags = SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ, + .flags = SPI_NOR_QUAD_PP | SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB, }, { /* W25Q64JV-M */ .id = SNOR_ID(0xef, 0x70, 0x17), -- 2.54.0 ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/