From: T Karthik Reddy <t.karthik.re...@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.re...@xilinx.com>
Signed-off-by: Ashok Reddy Soma <ashok.reddy.s...@xilinx.com>
Signed-off-by: Tejas Bhumkar <tejas.arvind.bhum...@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;
--
2.27.0
