Re: [U-Boot] [PATCH 3/3 V2] MX28: SPI: Add DMA transfer support

2012-07-16 Thread Stefano Babic
On 09/07/2012 12:48, Marek Vasut wrote: > The DMA transfers happen only if the transfered data are larger > than 512 bytes. Otherwise PIO is used. This is a small speed > optimization. > > The DMA transfer doesn't work if unaligned transfer is requested > due to the limitation of the DMA controlle

[U-Boot] [PATCH 3/3 V2] MX28: SPI: Add DMA transfer support

2012-07-09 Thread Marek Vasut
The DMA transfers happen only if the transfered data are larger than 512 bytes. Otherwise PIO is used. This is a small speed optimization. The DMA transfer doesn't work if unaligned transfer is requested due to the limitation of the DMA controller. This has to be fixed by introducing generic bounc