[U-Boot] [RFC PATCH v3 01/10] mtd: nand: pxa3xx_nand: Increase initial buffer size

Chris Packham judge.packham at gmail.com
Wed Dec 6 07:49:25 UTC 2017


Hi Ofer,

On Wed, Dec 6, 2017 at 7:55 PM,  <oferh at marvell.com> wrote:
> From: Ofer Heifetz <oferh at marvell.com>
>
> The initial buffer is used for the initial commands used to detect
> a flash device (STATUS, READID and PARAM).
>
> ONFI param page is 256 bytes, and there are three redundant copies
> to be read. JEDEC param page is 512 bytes, and there are also three
> redundant copies to be read. Hence this buffer should be at least
> 512 x 3. This commits rounds the buffer size to 2048.
>
> [ Linux commit c16340973fcb6461474a9f811f7f3ff2f946b24c ]
>
> Cc: Ezequiel Garcia <ezequiel at vanguardiasur.com.ar>
> Signed-off-by: Chris Packham <judge.packham at gmail.com>
> Reviewed-by: Ofer Heifetz <oferh at marvell.com>
> Tested-by: Ofer Heifetz <oferh at marvell.com>

Thanks for testing these. Since I sent the initial series I hadn't
heard anything back (the nand maintainer seems to be inactive).

Did you manage to rebase this series against u-boot#master? I've just
got my hands on a DB-88F78460-AMC board I was planning on porting it
to upstream u-boot when I find some time. It would be another good
test platform for these changes.


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