[PATCH v3 21/27] mtd: spinand: Create distinct fast and slow read from cache variants

Miquel Raynal miquel.raynal at bootlin.com
Wed Jan 15 10:31:02 PST 2025


On Fri, 10 Jan 2025 15:45:23 +0100, Miquel Raynal wrote:
> So far, the SPINAND_PAGE_READ_FROM_CACHE_OP macro was taking a first
> argument, "fast", which was inducing the possibility to support higher
> bus frequencies than with the normal (slower) read from cache
> alternative. In practice, without frequency change on the bus, this was
> likely without effect, besides perhaps allowing another variant of the
> same command, that could run at the default highest speed. If we want to
> support this fully, we need to add a frequency parameter to the slowest
> command. But before we do that, let's drop the "fast" boolean from the
> macro and duplicate it, this will further help supporting having
> different frequencies allowed for each variant.
> 
> [...]

The following patches have been applied to nand/next:

[21/27] mtd: spinand: Create distinct fast and slow read from cache variants
        commit: 042087247835dad1ec5e39052abf022fd13c6326
[22/27] mtd: spinand: Add an optional frequency to read from cache macros
        commit: 7ce0d16d5802bfde4209e52ee8ad644ca1eab423
[23/27] mtd: spinand: Enhance the logic when picking a variant
        commit: 666c299be696f02c3354da104295fb94b8f65d25
[24/27] mtd: spinand: Add support for read DTR operations
        commit: 8586bc8d95488dfaadbc1af89ba59900d2c39119
[25/27] mtd: spinand: winbond: Update the *JW chip definitions
        commit: 1ea808b4d15b9bddc48af75b0668b82366b5b927
[26/27] mtd: spinand: winbond: Add comment about naming
        commit: 61c7155e3fe938d4da4671b2f84e29eaf79f5f46
[27/27] mtd: spinand: winbond: Add support for DTR operations
        commit: be7a05db4252edbffb43484b14755048fb8db710

Patche(s) should be available on mtd/linux.git and will be
part of the next PR (provided that no robot complains by then).

Kind regards,
Miquèl



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