[PATCH v3 1/2] mtd: spi-nor: Set the erase flag for multi-die

Fabio Estevam festevam at gmail.com
Thu Oct 26 04:23:11 PDT 2023


From: Fabio Estevam <festevam at denx.de>

Instead of manually passing the .flags = NO_CHIP_ERASE in the case
of multi-die SPI NOR flash, retrieve the information about the number of
dies directly from SFDP and set the SNOR_F_NO_OP_CHIP_ERASE flag in the
multi-die case.

Suggested-by: Michael Walle  <michael at walle.cc>
Signed-off-by: Fabio Estevam <festevam at denx.de>
---
Changes since v2:
- Newly introduced.

 drivers/mtd/spi-nor/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mtd/spi-nor/core.c b/drivers/mtd/spi-nor/core.c
index 1c443fe568cf..f85ea57534ba 100644
--- a/drivers/mtd/spi-nor/core.c
+++ b/drivers/mtd/spi-nor/core.c
@@ -2850,7 +2850,7 @@ static void spi_nor_init_flags(struct spi_nor *nor)
 			nor->flags |= SNOR_F_HAS_SR_BP3_BIT6;
 	}
 
-	if (flags & NO_CHIP_ERASE)
+	if (flags & NO_CHIP_ERASE || nor->params->n_dice > 1)
 		nor->flags |= SNOR_F_NO_OP_CHIP_ERASE;
 
 	if (flags & SPI_NOR_RWW && nor->params->n_banks > 1 &&
-- 
2.34.1




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