Re: [U-Boot] [PATCH 2/2] mx6qarm2: Enable DCACHE and CONFIG_MMC_BOUNCE_BUFFER

Hi Jason,

On Wed, Oct 17, 2012 at 11:29 PM, Liu Hui-R64343 r64343@freescale.com wrote:

Why we need enable CONFIG_MMC_BOUNCE_BUFFER?

I learned the following from Marek:

"you can't flush cache over unaligned addresses so .. to make DMA work, we use the bounce buffer so the address is cache aligned"

Regards,

Fabio Estevam