On 3/1/2013 8:38 AM, Bo Shen wrote:
Hi All,
On 02/28/2013 08:59 PM, Albert ARIBAUD wrote:
On Sun, 3 Feb 2013 12:19:26 +0100, Albert ARIBAUD
<albert.u.b...@aribaud.net> wrote:
Hi Vipin,
On Fri, 2 Nov 2012 23:09:59 +0530, Vipin Kumar<vipin.ku...@st.com>
wrote:
From: Shiraz Hashim<shiraz.has...@st.com>
It is observed on SPEAr320S RMII#1 interface that on transmitting
packets the MAC dma hangs randomly and constantly showing busy tx-go
state.
It comes out if this situation only when Transmission is disabled and
enabled again.
Since it happens randomly and u-boot doesn't require high
performance we
disable TE and re-enable it on each transmission. We also change number
of transmit descriptor to 1 as we would not require more than it,
further
it would not alter GMAC notion of transmit descriptor start queue as it
always point to same descriptor.
Signed-off-by: Shiraz Hashim<shiraz.has...@st.com>
---
drivers/net/macb.c | 38 ++++++++++++++++++++++++++++++++++----
1 file changed, 34 insertions(+), 4 deletions(-)
Tested on Atmel EK board. It works.
Tested-by: Bo Shen <voice.s...@atmel.com>
BTW, would this be implemented as a workaround only for SPEAr320S?
Yes, The idea was to implement this only for spear320s
After your tested-by, I am thinking may be I can make a separate
workaround config which can be enabled by any board using this peripheral.
Is that OK?
Regards
Vipin
_______________________________________________
U-Boot mailing list
U-Boot@lists.denx.de
http://lists.denx.de/mailman/listinfo/u-boot
