[U-Boot] [U-Boot,v2,1/2] mtd: OMAP: Enable GPMC prefetch mode

[Tom Rini]

On Wed, Jun 25, 2014 at 02:43:32PM +0200, Daniel Mack wrote:

> Enable GPMC's prefetch feature for NAND access. This speeds up NAND read
> access a lot by pre-fetching contents in the background and reading them
> through the FIFO address.
> 
> The current implementation has two limitations:
> 
>  a) it only works in 8-bit mode
>  b) it only supports read access
> 
> Both is easily fixable by someone who has hardware to implement it.
> 
> Note that U-Boot code uses non word-aligned buffers to read data into, and
> request read lengths that are not multiples of 4, so both partial buffers
> (head and tail) have to be addressed.
> 
> Tested on AM335x hardware.
> 
> Signed-off-by: Daniel Mack <zonque at gmail.com>

Applied to u-boot-ti/master, after adding the change Guido talked about
and adding his Tested/Reviewed tags, thanks!

-- 
Tom
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