Re: [PATCH v5 09/13] mtd: rawnand: onfi: Adapt the parameter page read to constraint controllers

[Miquel Raynal <miquel.raynal@xxxxxxxxxxx>]

On Thu, 2020-05-07 at 10:52:37 UTC, Miquel Raynal wrote:
> We already know that there are controllers not able to read the three
> copies of the parameter page in one go. The workaround was to first
> request the controller to assert command and address cycles on the
> NAND bus to trigger a parameter page read, and then do a simple read
> operation for each page.
> 
> But there are also controllers which are not able to split the
> parameter page read between the command/address cycles and the actual
> data operation.
> 
> Let's use a regular PARAMETER PAGE READ operation for the first
> iteration and use either a CHANGE READ COLUMN or a simple DATA READ
> operation for the following copies, depending on what the controller
> supports. The default behavior for non-exec-op compliant drivers
> remains the same: DATA READ.
> 
> Signed-off-by: Miquel Raynal <miquel.raynal@xxxxxxxxxxx>
> Reviewed-by: Boris Brezillon <boris.brezillon@xxxxxxxxxxxxx>

Applied to https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git nand/next.

Miquel

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