From: T Karthik Reddy t.karthik.reddy@xilinx.com
Some flash devices have multiple dies in it & has die cross over issue. When SPI_NOR_MULTI_DIE flag is set in flash id table use it to enable split reads to avoid above issue. Define SPI_NOR_MULTI_DIE new flag to flash id flags. Remove SPI_FLASH_SPLIT_READ config and related code from the zynq and zynqmp qspi drivers as it is redundant.
Signed-off-by: T Karthik Reddy t.karthik.reddy@xilinx.com Signed-off-by: Ashok Reddy Soma ashok.reddy.soma@xilinx.com Signed-off-by: Tejas Bhumkar tejas.arvind.bhumkar@amd.com --- drivers/mtd/spi/sf_internal.h | 1 + drivers/mtd/spi/spi-nor-core.c | 3 +++ 2 files changed, 4 insertions(+)
diff --git a/drivers/mtd/spi/sf_internal.h b/drivers/mtd/spi/sf_internal.h index 9c09f97ce2..2cbdea60b0 100644 --- a/drivers/mtd/spi/sf_internal.h +++ b/drivers/mtd/spi/sf_internal.h @@ -70,6 +70,7 @@ struct flash_info { #define SPI_NOR_OCTAL_READ BIT(16) /* Flash supports Octal Read */ #define SPI_NOR_OCTAL_DTR_READ BIT(17) /* Flash supports Octal DTR Read */ #define SPI_NOR_OCTAL_DTR_PP BIT(18) /* Flash supports Octal DTR page program */ +#define SPI_NOR_MULTI_DIE BIT(19) /* Flash has multi dies & need split reads*/ };
extern const struct flash_info spi_nor_ids[]; diff --git a/drivers/mtd/spi/spi-nor-core.c b/drivers/mtd/spi/spi-nor-core.c index 63f78baaf4..ace5da9591 100644 --- a/drivers/mtd/spi/spi-nor-core.c +++ b/drivers/mtd/spi/spi-nor-core.c @@ -4485,6 +4485,9 @@ int spi_nor_scan(struct spi_nor *nor) if (info->flags & SPI_NOR_NO_ERASE) mtd->flags |= MTD_NO_ERASE;
+ if (info->flags & SPI_NOR_MULTI_DIE) + nor->spi->multi_die = true; + nor->page_size = params.page_size; mtd->writebufsize = nor->page_size;