Hello,
Masahiro Yamada <yamada.masah...@socionext.com> wrote on Thu, 13 Sep
2018 14:58:49 +0900:
> I thought the read-back of the DMA_ENABLE register was unnecessary
> (at least it is working on my boards), then deleted it in commit
> 586a2c52909d ("mtd: nand: denali: squash denali_enable_dma() helper
> into caller"). Sorry, I was wrong - it caused a timing issue on
> Cyclone5 SoCFPGAs.
>
> Revive the register read-back, commenting why this is necessary.
>
> Fixes: 586a2c52909d ("mtd: nand: denali: squash denali_enable_dma() helper
> into caller")
> Reported-by: Steffen Trumtrar <s.trumt...@pengutronix.de>
> Signed-off-by: Masahiro Yamada <yamada.masah...@socionext.com>
Reviewed-by: Miquel Raynal <miquel.ray...@bootlin.com>
Thanks,
Miquèl
