Re: [PATCH v3 04/23] mtd: spi-nor: Add support for the new JESD216 rev F QER field
From: "Michael Walle" <mwalle@kernel.org>
Date: 2026-08-14 12:26:34
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On Thu Aug 13, 2026 at 5:19 PM CEST, Miquel Raynal wrote:
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 <miquel.raynal@bootlin.com>
Reviewed-by: Michael Walle <mwalle@kernel.org>
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