From mboxrd@z Thu Jan 1 00:00:00 1970 From: York Sun Date: Wed, 23 Apr 2014 15:01:50 -0700 Subject: [U-Boot] [PATCH] fsl/usb: Increase TXFIFOTHRESH value for usb write in T4 Rev 2.0 In-Reply-To: <1396840574-19351-1-git-send-email-nikhil.badola@freescale.com> References: <1396840574-19351-1-git-send-email-nikhil.badola@freescale.com> Message-ID: <5358384E.3070903@freescale.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de 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 > Signed-off-by: Nikhil Badola > --- Applied to u-boot-mpc85xx/master, thanks. York