Messages in this thread | | | From | <> | Subject | Re: [PATCH 2/2] mtd: spi-nor: macronix: Add support for mx66lm1g45g | Date | Thu, 9 Dec 2021 17:23:15 +0000 |
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On 12/9/21 7:21 PM, Tudor Ambarus wrote: > mx66lm1g45g supports just 1-1-1, 8-8-8 and 8d-8d-8d modes. There are > versions of mx66lm1g45g which do not support SFDP, thus use > SPI_NOR_SKIP_SFDP. The RDID command issued through the octal peripheral > interface outputs data always in STR mode for whatever reason. Since > 8d-8d-8s is not common, avoid reading the ID when enabling the octal dtr > mode. Instead, read back the CR2 to check if the switch was successful. > Tested in 1-1-1 and 8d-8d-8d modes using sama7g5 QSPI IP. > > Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> > --- >
# cat /sys/devices/platform/soc/e080c000.spi/spi_master/spi1/spi1.0/spi-nor/jedec_id c2853b # cat /sys/devices/platform/soc/e080c000.spi/spi_master/spi1/spi1.0/spi-nor/manufacturer macronix # cat /sys/devices/platform/soc/e080c000.spi/spi_master/spi1/spi1.0/spi-nor/partname mx66lm1g45g # cat /sys/devices/platform/soc/e080c000.spi/spi_master/spi1/spi1.0/spi-nor/sfdp cat: can't open '/sys/devices/platform/soc/e080c000.spi/spi_master/spi1/spi1.0/spi-nor/sfdp': No such file or directory
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