Re: [U-Boot] [PATCH v4] ARM926ejs: Add routines to invalidate D-Cache

Hello Hong,

Marek Vasut wrote:

On Wednesday, August 10, 2011 04:49:25 AM Hong Xu wrote:

...

After DMA operation, we need to maintain D-Cache coherency. So that the DCache must be invalidated (hence CPU will fetch data written by DMA controller from RAM).

Tested on AT91SAM9261EK with Peripheral DMA controller.

Hi Hong,

one more thing, not that I want to disappoint you.

Try to take a look at arch/arm/cpu/armv7/cache_v7.c

Maybe we should do the same for arm926ejs -- have arch/arm/cpu/arm926ejs/cache.c -- containing arm926ejs specific cache management functions. That way, arch/arm/lib/cache.c won't become mess.

What do you think ?

Full Ack, this should be moved like on armv7 to arch/arm/cpu/arm926ejs/cache.c

Thanks!

bye, Heiko