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mtd: spi-nor-core: Do not make invalid quad enable fatal

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The Micron MT35XU512ABA flash does not support the quad enable bit. But
instead of programming the Quad Enable Require field to 000b ("Device
does not have a QE bit"), it is programmed to 111b ("Reserved").

While this is technically incorrect, it is not reason enough to abort
BFPT parsing. Instead, continue BFPT parsing assuming there is no quad
enable bit present.

Signed-off-by: Pratyush Yadav <p.yadav@ti.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
This commit is contained in:
Pratyush Yadav 2021-06-26 00:47:22 +05:30 committed by Jagan Teki
parent 6b808e0864
commit b058f108d7
1 changed files with 2 additions and 1 deletions
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3
drivers/mtd/spi/spi-nor-core.c
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@ -2100,7 +2100,8 @@ static int spi_nor_parse_bfpt(struct spi_nor *nor,
break; break;
#endif #endif
default: default:
return -EINVAL; dev_dbg(nor->dev, "BFPT QER reserved value used\n");
break;
} }
/* Stop here if JESD216 rev B. */ /* Stop here if JESD216 rev B. */