在 2016年02月24日 21:24, Bartlomiej Zolnierkiewicz 写道:
Hi,
On Wednesday, February 24, 2016 02:01:59 PM Caesar Wang wrote:
Hi,
Thanks Dinh & Alexander for the intergration testing.
---
@Dinh,
Can you test it again with the patch[0]?
patch[0]:
https://patchwork.kernel.org/patch/8398511/
This fixes the problem for me (tested on Samsung Exynos4412 SoC
based Trats2 board).
You may add:
Tested-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@xxxxxxxxxxx>
Thanks Bartlomiej for sharing the test result.:-)
-
Caesar
to your patch.
Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics
-
Caesar
在 2016年02月23日 23:14, Dinh Nguyen 写道:
Hi,
Sorry that I couldn't get to this sooner.
On 02/18/2016 10:07 AM, Alexander Kochetkov wrote:
Hello!
Bartlomiej, could you please tell what uart driver is used on Samsung
Exynos4412?
Dinh, could you please tell what uart driver is used on SoCFPGA?
SoCFPGA is using the 8250_dw.c uart driver.
Could you make two test?
1) Checkout tree at commit 848e9776fee4 "dmaengine: pl330: support
burst mode for
dev-to-mem and mem-to-dev transmit", make it buildable and see is it
works. In order to make in buildable remove bursts argument from the
line:
if (*bursts == 1)
- return _bursts(pl330, dry_run, buf, pxs, 1);
+ return _bursts(dry_run, buf, pxs, 1);
This case still fails for me.
2) Checkout next-20160211 kernel tree and set src_maxburst and
dst_maxburst to 1 inside UART driver to see is it works?
This case works and the UART is able to operate in DMA mode.
Dinh
--
Thanks,
Caesar
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