[U-Boot] [PATCH 2/6] dma: ti: k3-udma: Implement dma_get_cfg() interface

Joe Hershberger joe.hershberger at ni.com
Wed Nov 20 22:53:24 UTC 2019

On Mon, Nov 18, 2019 at 4:59 AM Vignesh Raghavendra <vigneshr at ti.com> wrote:
> Implement dma_get_cfg() interface to pass flow id information for DMA
> clients to use. This is needed because on K3 SoCs, CPSW (ethernet) and
> UDMA (DMA provider) support "flows" within a given RX DMA channel. This
> allows different network packets to be segregated while using same RX
> DMA channel. In order for basic ethernet to work, CPSW slave must be
> aware of the flow ID allocated for the RX channel by the DMA driver.
> This interface allows CPSW to query flow ID from DMA provider and
> configure it in CPSW HW.
> Signed-off-by: Vignesh Raghavendra <vigneshr at ti.com>

Acked-by: Joe Hershberger <joe.hershberger at ni.com>

More information about the U-Boot mailing list