RE: [PATCH v3 04/23] mtd: spi-nor: Add support for the new JESD216 rev F QER field
| Newsgroups | gmane.linux.documentation,gmane.linux.drivers.mtd,gmane.linux.ports.arm.kernel,gmane.linux.kernel |
|---|---|
| Message-ID | <[email protected]> |
> Revision F of the JEDEC JESD216 standard includes yet another > supported setting in the QER 3-bit bitfield: 110b. > > This setting implies that the QE bit is bit 1 of SR2 (which is an > already supported case) but this time it makes it very clear that both > reading and writing to SR2 is supported, but not with the usual > opcodes. The write operation uses an alternate WRSR2 opcode: > 0x31 (instead of 0x3E) and both the reads and writes manipulate a single > register at a time. > > Signed-off-by: Miquel Raynal <[email protected]> Reviewed-by: Takahiro Kuwano <[email protected]>