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SubjectRe: [PATCH linux-next v5 1/5] mtd: spi-nor: notify (Q)SPI controller about protocol change
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On Tuesday, September 08, 2015 at 06:20:05 PM, Cyrille Pitchen wrote:
> Hi Jonas,
>
> taking your comments into account I'm about to test a new series with
> additional patches to handle the Read ID command in multiple I/O protocols
> and relying on new members in the struct spi_nor:
>
> * @erase_proto: the SPI protocol used by erase operations
> * @read_proto: the SPI protocol used by read operations
> * @write_proto: the SPI protocol used by write operations
> * @reg_proto the SPI protocol used by read_reg/write_reg operations
>
> enum spi_protocol erase_proto;
> enum spi_protocol read_proto;
> enum spi_protocol write_proto;
> enum spi_protocol reg_proto;
>
> This way, the read(), write(), erase(), read_reg() and write_reg() hooks
> can check the relevant protocol member so the spi-nor framework doesn't
> need to call spi_nor_set_protocol() before any command.
>
> Also the op codes for read, page program and erase commands will be tuned
> depending on the memory manufacturer and the selected SPI protocol.
>
> I'm likely to publish this new series tomorrow after my tests on a Micron
> memory.

Excellent, please keep me on Cc as I'm already warming up my Spansion part ;-)

Best regards,
Marek Vasut


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