Re: [PATCH] mtd: bcm47xxsflash: use devm_ioremap_nocache() instead of KSEG0ADDR()

[RafaÅ MiÅecki]

On 24 January 2016 at 21:26, Maciej W. Rozycki <macro@xxxxxxxxxx> wrote:
> On Sat, 23 Jan 2016, Brian Norris wrote:
>
>> IIUC, this could be solved by:
>> (a) using an uncached mapping or
>> (b) explicitly invalidating the relevant region after doing flash writes
>> or erasures
>
>  Flash writes are usually much, much less frequent than reads, so
> optimising for reads is IMO the right direction.  So a cached mapping is a
> good choice, however invalidation must then be done after a write.

Can you give me some hint where to look at for cache invalidation?

-- 
RafaÅ