
5 Apr
2012
5 Apr
'12
12:08 p.m.
Dear Fabio Estevam,
On Wed, Apr 4, 2012 at 9:48 PM, Marek Vasut marex@denx.de wrote:
Someone may want to enable cache, but still uses MMC driver in PIO mode.
You don't, it's slow as crap then.
Well, this is how we have been using the MMC driver for the last 4 months.
With DCache disabled though ;-)
I like the fact that your patch let PIO and DMA mode co-exist in the driver and that they are selectable by the CONFIG_MXS_MMC_DMA option.
What I really don“t like is that by enabling CONFIG_SYS_DCACHE_OFF you force CONFIG_MXS_MMC_DMA.
All right, agreed.
These are separate things and one config option should not force the other.
Best regards, Marek Vasut