[PATCH] mtd: spi-nor: micron-st: Enable die erase support for MT35XU02GCBA

[Haoyu Lu]

From: "haoyu.lu" <hechushiguitu666@xxxxxxxxx>

The MT35XU02GCBA flash device does not support chip erase according
to its datasheet, but supports die erase. The existing code had a TODO
comment noting that the SPI_NOR_IO_MODE_EN_VOLATILE flag probably needs
to be enabled and the driver implementation needs to be converted to
use die erase.

This patch enables the SPI_NOR_IO_MODE_EN_VOLATILE flag and adds the
mt35xu01gbba_fixups to the MT35XU02GCBA entry, which includes the
micron_st_nor_two_die_late_init() function that sets up die erase
support.

With these changes, the flash device can properly use die erase
operations instead of chip erase.

Signed-off-by: haoyu.lu <hechushiguitu666@xxxxxxxxx>
---
 drivers/mtd/spi-nor/micron-st.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/mtd/spi-nor/micron-st.c b/drivers/mtd/spi-nor/micron-st.c
index 88033384a71e..4e8c6ef14697 100644
--- a/drivers/mtd/spi-nor/micron-st.c
+++ b/drivers/mtd/spi-nor/micron-st.c
@@ -220,7 +220,8 @@ static const struct flash_info micron_nor_parts[] = {
 		.size = SZ_256M,
 		.no_sfdp_flags = SECT_4K | SPI_NOR_OCTAL_READ,
 		.mfr_flags = USE_FSR,
-		.fixup_flags = SPI_NOR_4B_OPCODES,
+		.fixup_flags = SPI_NOR_4B_OPCODES | SPI_NOR_IO_MODE_EN_VOLATILE,
+		.fixups = &mt35xu01gbba_fixups,
 	},
 };
 
-- 
2.53.0.windows.1