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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org On 8/9/22 23:14, Sudip Mukherjee wrote: > EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe > > SFDP table of some flash chips do not advertise support of Quad Input > Page Program even though it has support. Use fixup flags and add hardware > cap for these chips. > > Signed-off-by: Sudip Mukherjee > --- > drivers/mtd/spi-nor/core.c | 9 +++++++++ > drivers/mtd/spi-nor/core.h | 2 ++ > 2 files changed, 11 insertions(+) > > diff --git a/drivers/mtd/spi-nor/core.c b/drivers/mtd/spi-nor/core.c > index f2c64006f8d7..7542404332a5 100644 > --- a/drivers/mtd/spi-nor/core.c > +++ b/drivers/mtd/spi-nor/core.c > @@ -1962,6 +1962,12 @@ spi_nor_spimem_adjust_hwcaps(struct spi_nor *nor, u32 *hwcaps) > if (nor->flags & SNOR_F_BROKEN_RESET) > *hwcaps &= ~(SNOR_HWCAPS_X_X_X | SNOR_HWCAPS_X_X_X_DTR); > > + if (nor->flags & SNOR_F_HAS_QUAD_PP) { > + *hwcaps |= SNOR_HWCAPS_PP_1_1_4; > + spi_nor_set_pp_settings(¶ms->page_programs[SNOR_CMD_PP_1_1_4], > + SPINOR_OP_PP_1_1_4, SNOR_PROTO_1_1_4); > + } setting SPINOR_OP_PP_1_1_4 should be done in spi_nor_late_init_params(). spi_nor_late_init_params() is used to adjust the ops supported by the flash with the ones supported by the controller. > + > for (cap = 0; cap < sizeof(*hwcaps) * BITS_PER_BYTE; cap++) { > int rdidx, ppidx; > > @@ -2446,6 +2452,9 @@ static void spi_nor_init_fixup_flags(struct spi_nor *nor) > > if (fixup_flags & SPI_NOR_IO_MODE_EN_VOLATILE) > nor->flags |= SNOR_F_IO_MODE_EN_VOLATILE; > + > + if (fixup_flags & SPI_NOR_QUAD_PP) > + nor->flags |= SNOR_F_HAS_QUAD_PP; > } > > /** > diff --git a/drivers/mtd/spi-nor/core.h b/drivers/mtd/spi-nor/core.h > index 85b0cf254e97..7dbdf16a67b4 100644 > --- a/drivers/mtd/spi-nor/core.h > +++ b/drivers/mtd/spi-nor/core.h > @@ -130,6 +130,7 @@ enum spi_nor_option_flags { > SNOR_F_IO_MODE_EN_VOLATILE = BIT(11), > SNOR_F_SOFT_RESET = BIT(12), > SNOR_F_SWP_IS_VOLATILE = BIT(13), > + SNOR_F_HAS_QUAD_PP = BIT(14), you won't need this > }; > > struct spi_nor_read_command { > @@ -520,6 +521,7 @@ struct flash_info { > u8 fixup_flags; > #define SPI_NOR_4B_OPCODES BIT(0) > #define SPI_NOR_IO_MODE_EN_VOLATILE BIT(1) > +#define SPI_NOR_QUAD_PP BIT(2) No, as I previously said, SPI_NOR_QUAD_PP should be declared as a info->flags, not as info->fixup_flags. > > u8 mfr_flags; > > -- > 2.30.2 > -- Cheers, ta ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/