[U-Boot] [PATCH] fsl/usb: Increase TXFIFOTHRESH value for usb write in T4 Rev 2.0

York Sun yorksun at freescale.com
Thu Apr 24 00:01:50 CEST 2014


On 04/06/2014 08:16 PM, Nikhil Badola wrote:
> Increase TXFIFOTHRES field value in TXFILLTUNING register of usb for T4 Rev 2.0.
> This decreases data burst rate with which data packets are posted from the TX
> latency FIFO to compensate for latencies in DDR pipeline during DMA.
> This avoids Tx buffer underruns and leads to successful usb writes
> 
> Signed-off-by: Ramneek Mehresh <ramneek.mehresh at freescale.com>
> Signed-off-by: Nikhil Badola <nikhil.badola at freescale.com>
> ---

Applied to u-boot-mpc85xx/master, thanks.

York




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