[PATCH 2/4] clk: tegra: add EMC clock driver

[Peter De Schrijver]

On Thu, Dec 19, 2013 at 12:43:28PM +0100, Lucas Stach wrote:
> Am Donnerstag, den 19.12.2013, 12:05 +0200 schrieb Peter De Schrijver:
> [...]
> > 
> > > funny tricks like running from IRAM since we can't access SDRAM during
> > > the clock change? If so, I'm not sure how having the EMC clock changing
> > > code is going to help your case (2) anyway, since we'll presumably have
> > > to code up a custom stub in assembly for the part of the code that runs
> > > from IRAM...
> > > 
> > 
> > There is no need for assembler or running from IRAM (at least from Tegra30
> > onwards, I don't know about Tegra20).
> > 
> Tegra20 doesn't need any IRAM trickery, the sequence is just:
> 1. set up EMC shadow registers for new clock frequency
> 2. change EMC divider in CAR module
> 

Nothing needs to be done after the divider change?

Cheers,

Peter.