16 Jul
2012
16 Jul
'12
5:03 p.m.
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 controller. This has to be fixed by introducing generic bounce buffer. Therefore the DMA feature is now disabled by default.
Signed-off-by: Marek Vasut marex@denx.de Cc: Fabio Estevam festevam@gmail.com Cc: Otavio Salvador otavio@ossystems.com.br Cc: Stefano Babic sbabic@denx.de Cc: Wolfgang Denk wd@denx.de
Applied to u-boot-imx, next branch, thanks.
Best regards, Stefano Babic
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