f Of Mike Looijmans
> Sent: Thursday, March 21, 2019 10:09 AM
> To: Peter Smith
> Cc: meta-xil...@lists.yoctoproject.org
> Subject: Re: [meta-xilinx] Really bad SD/eMMC performance after upgrading
> 2018.1
> to 2018.3
>
> Have only tried the MPSoC.
>
> I haven'
On 25-03-19 09:01, Mike Looijmans wrote:
> I did notice that even on the 7 series programming the FPGA from Linux (using
> fpga-manager framework) is broken in the 2018.3 release now:
>
> fpga_manager fpga0: writing fpga.bin to Xilinx Zynq FPGA Manager
> fpga_manager fpga0: Error after writing
It's definitely the PMU or ATF that causes this.
If I use the 2018.1 ATF and PMU, the SDIO controller performance is okay with
either the 2018.1 or 2018.3 kernel. With the 2018.3 release of PMU and ATF,
the SD performance is horrible. I also noticed it stopped USB from working.
Maybe something
On the 7-series, SD performance is as usual:
# dd if=/dev/mmcblk0 of=/dev/null bs=1M count=20
20+0 records in
20+0 records out
20971520 bytes (20.0MB) copied, 0.997935 seconds, 20.0MB/s
I did notice that even on the 7 series programming the FPGA from Linux (using
fpga-manager framework) is
Have only tried the MPSoC.
I haven't tried the 7k yet with 2018.3, may get to that tomorrow. I
suspect it's something with the PMU interface and/or clock dividers.
On 21-03-19 17:54, Peter Smith wrote:
> Mike, although I have not made any measurements I have noticed in the
> last few days
Hi guys,
> On Mar 21, 2019, at 09:03, Mike Looijmans wrote:
>
> The SD and eMMC controller has become terribly slow in 2018.3:
>
> # echo 3 > /proc/sys/vm/drop_caches
>
> # dd if=/dev/mmcblk0 of=/dev/null bs=1M count=20
> 20+0 records in
> 20+0 records out
> 20971520 bytes (20.0MB) copied,
Mike, although I have not made any measurements I have noticed in the last
few days (coincidentally I have been doing a lot of work with a ZCU102)
that the SD interface seemed a bit slow. Are you seeing this on Zynq 7K or
US+ MPSoC?
Best Regards
Peter
On Thu, 21 Mar 2019 at 16:38, Mike Looijmans
The SD and eMMC controller has become terribly slow in 2018.3:
# echo 3 > /proc/sys/vm/drop_caches
# dd if=/dev/mmcblk0 of=/dev/null bs=1M count=20
20+0 records in
20+0 records out
20971520 bytes (20.0MB) copied, 4.972666 seconds, 4.0MB/s
# dd if=/dev/mmcblk1 of=/dev/null bs=1M count=20
20+0
