[U-Boot] [PATCH] dwc: ep0: Allocate and flush dwc->ep0_trb in a cache aligned manner

[Andy Shevchenko]

On Tue, 2017-10-03 at 13:05 +0530, Faiz Abbas wrote:
> Hi,
> 
> On Tuesday 19 September 2017 04:45 PM, Faiz Abbas wrote:
> > A flush of the cache is required before any DMA access can take
> > place.
> > The minimum size that can be flushed from the cache is one cache
> > line
> > size. Therefore, any buffer allocated for DMA should be in multiples
> > of cache line size.
> > 
> > Thus, allocate memory for ep0_trb in multiples of cache line size.
> > 
> > Also, when local variable trb is assigned to dwc->ep0_trb[1] and
> > used
> > to flush cache, it leads to cache misaligned messages as only the
> > base
> > address dwc->ep0_trb is cache aligned.
> > 
> > Therefore, flush cache using ep0_trb_addr which is always cache
> > aligned.
> > 
> > Signed-off-by: Faiz Abbas <faiz_abbas at ti.com>
> 
> Gentle ping.

Can you resend with Felipe Balbi included?

And I'm not sure Vincent is anyhow related to this anymore (or even
works with us).

-- 
Andy Shevchenko <andriy.shevchenko at linux.intel.com>
Intel Finland Oy