Re: [PATCH v18 6/7] crypto: caam: cleanup CONFIG_64BIT ifdefs when using io{read|write}64

From: Logan Gunthorpe
Date: Wed Jul 04 2018 - 13:13:29 EST

On 7/4/2018 11:10 AM, Andy Shevchenko wrote:
> We have an iDMA 32-bit hardware (see drivers/dma/dw/) which has an
> extension 64-bit registers where only one of them has a specific bit
> to "commit" the changes written to all of them. And by some very
> unknown reason that bit is in lo part which automatically means we
> must to write it last.

And it supports both BE and LE? And in both cases it's the lo part?