The spi_dataflash_probe function should return after jedec_probe if it finds any serial flash. This functions adds the same SPI device two times without this path. Serial output when reading environment:

Loading Environment from SPIFlash... SPI DataFlash: Detected at45db321d with page size 512 Bytes, erase size 512 Bytes, total 4 MiB, revision d SPI DataFlash: Detected AT45DB321x with page size 528 Bytes, erase size 528 Bytes, total 4.1 MiB, revision *** Warning - bad CRC, using default environment

When this patch is applied:

Loading Environment from SPIFlash... SPI DataFlash: Detected at45db321d with page size 512 Bytes, erase size 512 Bytes, total 4 MiB, revision d OK ---  drivers/mtd/spi/sf_dataflash.c | 3 +++  1 file changed, 3 insertions(+)

diff --git a/drivers/mtd/spi/sf_dataflash.c b/drivers/mtd/spi/sf_dataflash.c index b59edd152c..7040f21eb2 100644 --- a/drivers/mtd/spi/sf_dataflash.c +++ b/drivers/mtd/spi/sf_dataflash.c @@ -630,6 +630,9 @@ static int spi_dataflash_probe(struct udevice *dev)          if (status == 0 || status == 0xff)              status = -ENODEV;          goto err_jedec_probe; + +        if (!status) +            return 0;      }

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