A20-OLinuXino-LIME2 new HW Rev. E

chradev · April 02, 2016, 11:29:56 PM

Hi to All,

I have just received from Olimex 2 boards A20-OLinuXino-LIME2-eMMC with new HW rev. E.
I have 2 boards A20-OLinuXino-LIME2-4GB with old HW rev. C.
The HW setup includes also USB-WiFi (MOD-WIFI-R5370) and USB-LAN adapters and SATA SSD.

SW is highly customized by me Armbian 5.07 (latest), U-Boot v2015.10 and Linux kernel 3.4.111.
The Armbian build includes also pmount, dnsmasq, nginx-full (DNS & DHCP and Web servers) and RPI Monitor customized for Allwinner A20 boards with AXP209 PMU. Configuration is also heavily customized. Igor Pecovnik's LDO3/LDO4 patch for U-Boot is present but disabled.

The main differences in new HW rev D and E compared to rev C are:

Completely re-routed the Ethernet and the EEPROM in order to reduce noise
Added eMMC option (can be used instead of NAND). By default everything is set to NAND

New rev. E Lime2 boards have nothing written on NAND but run immediately from SD prepared and working fine on old rev. C once.

Some of my first observations are (measures on Lime2 rev. E vs. rev. C with no extra CPU Load):

1GB Ethernet is working with direct connection to my MAC (6.6MB/s @ 1000 Mbps vs. 8.3MB/s @ 100 Mbps)
NAND driver on Lime2 rev. E is failing ([SCAN_ERR] Reset boot nand flash chip failed!)
PMU is significantly cooler (30- °C vs. 45+ °C at similar conditions)
board only consumption is higher (250-300 mA vs. 150-200 mA)
there is some difference in HW info (CPU frequency is not shown on RPI Monitor statistics)
other main HW and SW staff is working similarly

Above observations are based only on brief tests and more detailed once will be done later.

Unfortunately, there is no information on how to switch from default NAND to eMMC option which is important to me so any help is welcome.

EDIT: It is not written on Olimex site and A20-OLinuXino-LIME2 user's manual but as I can see on the board and schematics probably there will be 3 board options:

A20-OLinuXino-LIME2 - without any flash
A20-OLinuXino-LIME2-4G - with 4GB NAND flash
A20-OLinuXino-LIME2-eMMC - with 4GB eMMC flash (like one I have)

which mean that NAND driver is right to fail because of chip luck and only U-Boot and kernel SW support has to be added for the second SD card (SDC2).

Best regards
Chris

chradev · April 04, 2016, 10:50:35 AM

Hi to All,

Find my comparison tests of power consumption, battery life and chip temperature characteristics for A20-Olinuxino-Lime2 HW rev. C (-4GB) and E (-eMMC).

Best regards
Chris

chradev · April 04, 2016, 05:32:09 PM

Hi to All,

Next my step is to test eMMC. The details about it was published on:
http://forum.armbian.com/index.php/topic/853-armbian-customization/#entry7265

Any help is welcome

Best regards
Chris

LubOlimex · April 07, 2016, 11:09:40 AM

Hey,

Can you describe your testing setup?

45 degrees C doesn't occur as an alarming temperature for the PMU. It seems completely fine to me.

Best regards,
Lub/OLIMEX

chradev · April 07, 2016, 03:20:17 PM

Hi Lubomir,

Fist of all I have temperature problem with 2x A20-Olinuxino-Lime2-4GB (rev. C) boards and send an e-mail with all details about it to your support.

You can also take a look on all data via following link: status.html
Currently the system is with open box and w/o load (25 degree Celsius room temperature) - PMU temperature is 44 degree Celsius.

Yes 40 degree Celsius is not a problem in case of system load. But this temperatures are measured with no CPU, IO, Network load - system is simply running only its background processes.

My configuration except A20-Olinuxino-Lime2-4GB board itself include MOD-WIFI-R5370, USB-ETHERNET-AX88772B and 60 GB SATA SSD (model V60).
The board is powered by BATTERY-LIPO6600mAh, SY0605E and from USB OTG.
There is ALUMINIUM-HEATSINK-20x20x6MM is mounted on the CPU chip.
It is planned the board to be mounted in A10-OLinuXino-LIME-BOX.
Above configuration should work in 24/7 regime.

Under the most optimistic variant (no extra CPU / NAND / SD / SSD load and network traffic, battery is full and board is powered from DC-IN 5V at mean 500 mA consumption and mean 200 mA or 1 W via PMU) the PMU temperature is:
* more than 42 degree Celsius if the board is outside the box
* more than 49 degree Celsius if the board is into the box
In case of no external power (consumption from battery) or at battery charring (~1000 mA consumption from DC-IN and up to 600 mA charge current) the temperatures goes close to 50 degree Celsius (the board is outside the box).
In case of powering from USB OTG and the board is into the box the PMU temperature goes above 52 degree Celsius when the test was discontinued.

For bettering PMU temperature regime I put on it a small heat sink but the temperatures decreased with 2-3 degree Celsius.
Both A20-Olinuxino-Lime2-4GB boards have similar behavior (as described above).

Mean while I have received 2x A20-Olinuxino-Lime2-eMMC boards and noticed that the PMU temperature is much lower (28 vs. 42 degree Celsius). For example when Lime2-eMMC board is in box without heat sinks and with all above peripherals and at battery charge via DC-IN both CPU and PMU temperatures is close but under 40 degree Celsius.

Temperatures and other PMU characteristics are measured using RPI Monitor (on Armbian 5.07 with U-Boot v2015.10, kernel 3.4.111 sun7 and Debian 8 Jessie) customized to work with A20 CPU and AXP209 PMU chip set. For more details take a look on following file Lime2-rev-C-E-comp.pdf.

Best regards
Chris

LubOlimex · April 07, 2016, 03:57:14 PM

One thing is not clear - all the tests on both boards are performed using the same microSD card with the same image, is this correct assumption? (I guess, Armbian 5.07 with U-Boot v2015.10, kernel 3.4.111 sun7 and Debian 8 Jessie).

Best regards,
Lub/OLIMEX

chradev · April 07, 2016, 06:00:06 PM

Yes, it is correct. I use one and the same image for both boards for battery and temperature tests.
It is customized by me Armbian 5.07 with U-Boot v2015.10, kernel 3.4.111-sun7 and Debian 8 Jessie.

It supports NAND on A20-Olinuxino-Lime2-4GB board but does not currently support eMMC on Lime2-eMMC board (I am working on).

As I wrote to the support A20-Olinuxino-Lime2-4GB boards temperature problem is probably in soldering.
They are both soldered either manually or re-soldered and probably heat contact with the board is lost.

The other problem I have is with eMMC support on Lime2-eMMC boards but it is published on other threads:
https://www.olimex.com/forum/index.php?topic=5184.msg21560#msg21560
http://forum.armbian.com/index.php/topic/853-armbian-customization/page-2#entry7265 - for kernel 3.4
http://forum.armbian.com/index.php/topic/853-armbian-customization/page-2#entry7277 - for kernel 4.2

I follow the forum threads and other fex and dts files but eMMC is not recognized correctly by the kernel so it could be very nice to give me some directions where my fault is.

LubOlimex · April 08, 2016, 02:14:03 PM

Hey,

I don't recommend you to perform any conclusive tests with unofficial images. The values in the scripts and the different u-boot versions might cause such temperature differences.

The NAND is in TQFP package and eMMC is in BGA package (no way to see any soldering below it) – you can't objectively compare the soldering between the boards.

It is normal to have work done by hand. Each board and each soldering gets evaluated by a technician. If the technician decides that the PCB placing machines didn't do a soldering properly he might advice an employee to re-do any soldering by hand to ensure that everything would work fine. It is more important for us to sell well-tested and well-working boards. We are not into pretty boards.

Try with these two images for LIME2:

1) LIME2 with NAND, 2015.10 mainline u-boot, sunxi kernel, Jessie FS, image release #5: https://www.olimex.com/wiki/images/4/46/A20-lime2_mainline_uboot_GMAC_master_sunxi_kernel_3.4.103_jessie_NAND_rel_5.torrent

2) LIME2 with eMMC, 2015.10 mainline u-boot, sunxi kernel, Jessie FS, image release #5: https://www.olimex.com/wiki/images/1/14/A20-lime2_mainline_uboot_GMAC_master_sunxi_kernel_3.4.103_jessie_emmc_rel_5.torrent

There are NAND/eMMC install scripts inside.

We are working on the repository and the instructions for the new releases. Keep an eye here: https://github.com/OLIMEX/OLINUXINO/tree/master/SOFTWARE/A20/A20-build-3.4.103-release-2

Best regards,
Lub/OLIMEX

chradev · April 08, 2016, 03:08:09 PM

Thanks Lubomir,

I will do the tests with pointed images and will report the results as soon as I have them.

Best regards
Chris

chradev · April 08, 2016, 05:23:45 PM

Hi to All

My first test was with 20-lime2_mainline_uboot_GMAC_master_sunxi_kernel_3.4.103_jessie_emmc_rel_5 image on A20-OLinuXino-Lime2-eMMC.
It boots successfully and eMMC is recognized by both U-Boot:

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U-Boot 2015.10-dirty (Apr 04 2016 - 15:36:04 +0300) Allwinner Technology

CPU:   Allwinner A20 (SUN7I)
I2C:   ready
DRAM:  1 GiB
MMC:   SUNXI SD/MMC: 0 (SD), SUNXI SD/MMC: 1

and kernel

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root@A20-OLinuXino:~# dmesg | grep mmc
[    0.000000] Kernel command line: console=ttyS0,115200 root=/dev/mmcblk0p2 rootwait panic=10
[    2.419666] [mmc-msg] sw_mci_init
[    2.428737] [mmc-msg] MMC host used card: 0x5, boot card: 0x5, io_card 0
[    2.443411] [mmc-msg] sdc0 set round clock 400000, src 24000000
[    2.457586] [mmc-msg] sdc0 set ios: clk 0Hz bm OD pm OFF vdd 3.3V width 1 timing LEGACY(SDR12) dt B
[    2.474802] [mmc-msg] sdc0 Probe: base:0xf0146000 irq:64 sg_cpu:f0148000(4fc00000) ret 0.
[    2.482713] [mmc-msg] sdc0 set ios: clk 0Hz bm PP pm UP vdd 3.3V width 1 timing LEGACY(SDR12) dt B
[    2.502233] [mmc-msg] sdc0 power on
[    2.514035] [mmc-msg] sdc0 set ios: clk 400000Hz bm PP pm ON vdd 3.3V width 1 timing LEGACY(SDR12) dt B
[    2.528267] [mmc-msg] sdc0 set round clock 400000, src 24000000
[    2.539215] [mmc-msg] sdc2 set round clock 400000, src 24000000
[    2.553378] [mmc-msg] sdc2 set ios: clk 0Hz bm OD pm OFF vdd 3.3V width 1 timing LEGACY(SDR12) dt B
[    2.570617] [mmc-msg] sdc2 Probe: base:0xf014a000 irq:66 sg_cpu:f014c000(4fc01000) ret 0.
[    2.583400] [mmc_pm]: failed to fetch sdio card configuration!
[    2.607582] [mmc-err] smc 0 err, cmd 52,  RTO
[    2.625998] [mmc-err] smc 0 err, cmd 52,  RTO
[    2.641493] [mmc-msg] sdc0 set ios: clk 400000Hz bm PP pm ON vdd 3.3V width 1 timing LEGACY(SDR12) dt B
[    2.664085] [mmc-msg] sdc0 set ios: clk 400000Hz bm PP pm ON vdd 3.3V width 1 timing LEGACY(SDR12) dt B
[    2.714030] [mmc_pm]: No sdio card, please check your config !!
[    2.730527] [mmc-err] smc 0 err, cmd 5,  RTO
[    2.743054] [mmc-err] smc 0 err, cmd 5,  RTO
[    2.759149] [mmc-err] smc 0 err, cmd 5,  RTO
[    2.776846] [mmc-err] smc 0 err, cmd 5,  RTO
[    2.807555] [mmc-msg] sdc0 set ios: clk 400000Hz bm PP pm ON vdd 3.3V width 1 timing LEGACY(SDR12) dt B
[    2.831321] [mmc-msg] sdc0 set ios: clk 400000Hz bm PP pm ON vdd 3.3V width 1 timing LEGACY(SDR12) dt B
[    2.854521] [mmc-msg] sdc0 set ios: clk 400000Hz bm PP pm ON vdd 3.3V width 1 timing LEGACY(SDR12) dt B
[    3.049631] [mmc-msg] sdc0 set ios: clk 400000Hz bm PP pm ON vdd 3.3V width 1 timing SD-HS(SDR25) dt B
[    3.067334] [mmc-msg] sdc0 set ios: clk 50000000Hz bm PP pm ON vdd 3.3V width 1 timing SD-HS(SDR25) dt B
[    3.081913] [mmc-msg] sdc0 set round clock 42857143, src 600000000
[    3.135274] Waiting for root device /dev/mmcblk0p2...
[    3.148865] [mmc-msg] sdc0 set ios: clk 50000000Hz bm PP pm ON vdd 3.3V width 4 timing SD-HS(SDR25) dt B
[    3.162805] mmc0: new high speed SDHC card at address 0007
[    3.172211] mmcblk0: mmc0:0007 SD04G 3.70 GiB
[    3.180095]  mmcblk0: p1 p2
[    3.191648] [mmc-msg] sdc2 set ios: clk 0Hz bm PP pm UP vdd 3.3V width 1 timing LEGACY(SDR12) dt B
[    3.203075] [mmc-msg] sdc2 power on
[    3.227434] [mmc-msg] sdc2 set ios: clk 400000Hz bm PP pm ON vdd 3.3V width 1 timing LEGACY(SDR12) dt B
[    3.241728] [mmc-msg] sdc2 set round clock 400000, src 24000000
[    3.259865] EXT3-fs (mmcblk0p2): error: couldn't mount because of unsupported optional features (240)
[    3.279687] EXT2-fs (mmcblk0p2): error: couldn't mount because of unsupported optional features (240)
[    3.317025] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)
[    3.328460] [mmc-err] smc 2 err, cmd 52,  RTO
[    3.347189] [mmc-err] smc 2 err, cmd 52,  RTO
[    3.359911] [mmc-msg] sdc2 set ios: clk 400000Hz bm PP pm ON vdd 3.3V width 1 timing LEGACY(SDR12) dt B
[    3.391204] [mmc-msg] sdc2 set ios: clk 400000Hz bm PP pm ON vdd 3.3V width 1 timing LEGACY(SDR12) dt B
[    3.407118] [mmc-err] smc 2 err, cmd 8,  RTO
[    3.416110] [mmc-err] smc 2 err, cmd 5,  RTO
[    3.424480] [mmc-err] smc 2 err, cmd 5,  RTO
[    3.432921] [mmc-err] smc 2 err, cmd 5,  RTO
[    3.441671] [mmc-err] smc 2 err, cmd 5,  RTO
[    3.450256] [mmc-err] smc 2 err, cmd 55,  RTO
[    3.458859] [mmc-err] smc 2 err, cmd 55,  RTO
[    3.467437] [mmc-err] smc 2 err, cmd 55,  RTO
[    3.476000] [mmc-err] smc 2 err, cmd 55,  RTO
[    3.488780] [mmc-msg] sdc2 set ios: clk 400000Hz bm OD pm ON vdd 3.3V width 1 timing LEGACY(SDR12) dt B
[    3.507310] [mmc-msg] sdc2 set ios: clk 400000Hz bm OD pm ON vdd 3.3V width 1 timing LEGACY(SDR12) dt B
[    3.525099] [mmc-msg] sdc2 set ios: clk 400000Hz bm OD pm ON vdd 3.3V width 1 timing LEGACY(SDR12) dt B
[    3.542895] [mmc-msg] sdc2 set ios: clk 400000Hz bm OD pm ON vdd 3.3V width 1 timing LEGACY(SDR12) dt B
[    3.563139] [mmc-msg] sdc2 set ios: clk 400000Hz bm OD pm ON vdd 3.3V width 1 timing LEGACY(SDR12) dt B
[    3.598711] [mmc-msg] sdc2 set ios: clk 400000Hz bm PP pm ON vdd 3.3V width 1 timing LEGACY(SDR12) dt B
[    3.631359] [mmc-msg] sdc2 set ios: clk 400000Hz bm PP pm ON vdd 3.3V width 8 timing LEGACY(SDR12) dt B
[    3.647376] [mmc-err] smc 2 err, cmd 8,  EBE
[    3.654870] [mmc-err] In data read operation
[    3.664174] [mmc-msg] found data error, need to send stop command
[    3.674954] [mmc-err] sdc 2 send stop command failed
[    3.684548] mmc1: unexpected status 0x400800 after switch
[    3.698226] [mmc-msg] sdc2 set ios: clk 400000Hz bm PP pm ON vdd 3.3V width 4 timing LEGACY(SDR12) dt B
[    3.716210] mmc1: switch to highspeed failed
[    3.729224] [mmc-msg] sdc2 set ios: clk 25000000Hz bm PP pm ON vdd 3.3V width 4 timing LEGACY(SDR12) dt B
[    3.744046] [mmc-msg] sdc2 set round clock 25000000, src 600000000
[    3.814407] [mmc-msg] sdc2 set ios: clk 25000000Hz bm PP pm ON vdd 3.3V width 8 timing LEGACY(SDR12) dt B
[    3.829178] [mmc-err] smc 2 err, cmd 8,  EBE
[    3.836673] [mmc-err] In data read operation
[    3.845975] [mmc-msg] found data error, need to send stop command
[    3.855984] [mmc-err] sdc 2 send stop command failed
[    3.871035] [mmc-msg] sdc2 set ios: clk 25000000Hz bm PP pm ON vdd 3.3V width 4 timing LEGACY(SDR12) dt B
[    3.885984] mmc1: new MMC card at address 0001
[    3.894828] mmcblk1: mmc1:0001 P1XXXX 3.60 GiB
[    3.904988] mmcblk1boot0: mmc1:0001 P1XXXX partition 1 16.0 MiB
[    3.916739] mmcblk1boot1: mmc1:0001 P1XXXX partition 2 16.0 MiB
[    3.925876]  mmcblk1: p1
[    3.938429] Dev Sunxi softw311 mmcblk1boot1 magic does not match for MBR 1:
[    3.952938] Dev Sunxi softw311 mmcblk1boot1 magic does not match for MBR 2:
[    3.967464] Dev Sunxi softw311 mmcblk1boot1 magic does not match for MBR 3:
[    3.981935] Dev Sunxi softw311 mmcblk1boot1 magic does not match for MBR 4:
[    3.998104] Dev Sunxi softw311 mmcblk1boot1 header bad for all MBR copies, MBR corrupted or not present.
[    4.014290] Dev Sunxi softw411 mmcblk1boot1 magic does not match for MBR 1:
[    4.029497] Dev Sunxi softw411 mmcblk1boot1 magic does not match for MBR 2:
[    4.044744] Dev Sunxi softw411 mmcblk1boot1 magic does not match for MBR 3:
[    4.059955] Dev Sunxi softw411 mmcblk1boot1 magic does not match for MBR 4:
[    4.076236] Dev Sunxi softw411 mmcblk1boot1 header bad for all MBR copies, MBR corrupted or not present.
[    4.089516]  mmcblk1boot1: unknown partition table
[    4.104386] Dev Sunxi softw311 mmcblk1boot0 magic does not match for MBR 1:
[    4.118899] Dev Sunxi softw311 mmcblk1boot0 magic does not match for MBR 2:
[    4.133387] Dev Sunxi softw311 mmcblk1boot0 magic does not match for MBR 3:
[    4.147889] Dev Sunxi softw311 mmcblk1boot0 magic does not match for MBR 4:
[    4.163948] Dev Sunxi softw311 mmcblk1boot0 header bad for all MBR copies, MBR corrupted or not present.
[    4.180001] Dev Sunxi softw411 mmcblk1boot0 magic does not match for MBR 1:
[    4.194321] Dev Sunxi softw411 mmcblk1boot0 magic does not match for MBR 2:
[    4.208641] Dev Sunxi softw411 mmcblk1boot0 magic does not match for MBR 3:
[    4.222959] Dev Sunxi softw411 mmcblk1boot0 magic does not match for MBR 4:
[    4.239011] Dev Sunxi softw411 mmcblk1boot0 header bad for all MBR copies, MBR corrupted or not present.
[    4.252117]  mmcblk1boot0: unknown partition table
[    4.700470] systemd-gpt-auto-generator[73]: Failed to determine partition table type of /dev/mmcblk0: Input/output error
[    6.692958] systemd[1]: Expecting device dev-mmcblk0p1.device...
[   32.047403] EXT4-fs (mmcblk1p1): mounted filesystem with ordered data mode. Opts: (null)

lsblk command prints:

Code Select


root@A20-OLinuXino:~# lsblk
NAME         MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
sda            8:0    0 55.9G  0 disk
|-sda1         8:1    0   50G  0 part
`-sda2         8:2    0  5.9G  0 part
mmcblk1boot0 179:16   0   16M  1 disk
mmcblk1boot1 179:24   0   16M  1 disk
mmcblk0      179:0    0  3.7G  0 disk
|-mmcblk0p1  179:1    0   16M  0 part /boot
`-mmcblk0p2  179:2    0  1.9G  0 part /
mmcblk1      179:8    0  3.6G  0 disk
`-mmcblk1p1  179:9    0  3.6G  0 part

and 'ls -la /dev/mmc*':

Code Select


root@A20-OLinuXino:~# ls -la /dev/mmc*
brw-rw---- 1 root disk 179,  0 Jan  1 00:03 /dev/mmcblk0
brw-rw---- 1 root disk 179,  1 Jan  1 00:03 /dev/mmcblk0p1
brw-rw---- 1 root disk 179,  2 Jan  1 00:03 /dev/mmcblk0p2
brw-rw---- 1 root disk 179,  8 Jan  1 00:03 /dev/mmcblk1
brw-rw---- 1 root disk 179, 16 Jan  1 00:03 /dev/mmcblk1boot0
brw-rw---- 1 root disk 179, 24 Jan  1 00:03 /dev/mmcblk1boot1
brw-rw---- 1 root disk 179,  9 Jan  1 00:03 /dev/mmcblk1p1

Where devices /dev/mmcblk1boot0 and /dev/mmcblk1boot1 of type 'disk' having size of 16MB and marked as RO are strange.
'fdisk /dev/mmcblk1' command reports for a single partition on eMMC:

Code Select


Disk /dev/mmcblk1: 3.6 GiB, 3867148288 bytes, 7553024 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x0d19330d

Device         Boot Start     End Sectors  Size Id Type
/dev/mmcblk1p1       2048 7553023 7550976  3.6G 83 Linux

Next test done is for read and write performance:

Code Select


root@A20-OLinuXino:~# dd if=/dev/zero of=/media/olimex/2c2213d0-558b-4f7c-ae68-db5bc30672b6/1GBfile bs=1M count=1024
1024+0 records in
1024+0 records out
1073741824 bytes (1.1 GB) copied, 98.7103 s, 10.9 MB/s
root@A20-OLinuXino:~# dd of=/dev/null if=/media/olimex/2c2213d0-558b-4f7c-ae68-db5bc30672b6/1GBfile
2097152+0 records in
2097152+0 records out
1073741824 bytes (1.1 GB) copied, 87.9607 s, 12.2 MB/s

reporting for 10.9 and 12.2 MB/s performance at writing to and reading from eMMC of 1GB file.

60GB SSD device connected to SATA is recognized but not auto-mounted so after manual mount the speed test gives:

Code Select


root@A20-OLinuXino:~# dd if=/dev/zero of=/mnt/1GBfile bs=1M count=1024
1024+0 records in
1024+0 records out
1073741824 bytes (1.1 GB) copied, 24.1925 s, 44.4 MB/s
root@A20-OLinuXino:~# dd of=/dev/null if=/mnt/1GBfile
2097152+0 records in
2097152+0 records out
1073741824 bytes (1.1 GB) copied, 16.2533 s, 66.1 MB/s

Ethernet interface is not set to auto so 'ifup eth0' command has to be issued:

Code Select


root@A20-OLinuXino:~# ifup eth0
<6>sunxi_gmac: probed
[  179.373228] sunxi_gmac: probed
<6>eth0: PHY ID 001cc912 at 1 IRQ 0 (sunxi_gmac-0:01) active
[  179.381683] eth0: PHY ID 001cc912 at 1 IRQ 0 (sunxi_gmac-0:01) active
<6>PHY: sunxi_gmac-0:01 - Link is Up[  181.392328] PHY: sunxi_gmac-0:01 - Link is Up<c> - 1000/Full - 1000/Full<c>

reporting that connection speed is 1GB at full duplex.
test with scp command to transfer 1GB file from eMMC to Linux VM on i7PC via DLink DIR-860L router with GBit switch gives:

Code Select


root@chr-vm-yocto:/data/armbian-dev/userpatches/dts/rrddata# scp root@192.168.1.254:/media/olimex/2c2213d0-558b-4f7c-ae68-db5bc30672b6/1GBfile .
root@192.168.1.254's password: 
1GBfile                                          100% 1024MB   8.1MB/s   02:07

the same test using the 1GB file from SSD reports:

Code Select


root@chr-vm-yocto:/data/armbian-dev/userpatches/dts/rrddata# scp root@192.168.1.254:/mnt/1GBfile .
root@192.168.1.254's password: 
1GBfile                                          100% 1024MB   8.5MB/s   02:01

which is similar speed without matter that file read is 5 times faster so probably is limited by network.
Similar speeds are achieved if Lime2-eMMC is connected directly to my MACBook Pro.

More tests have to be done for measuring Ethernet speed and proving if the connection is really GBit.

Best regards
Chris

chradev · April 09, 2016, 06:56:06 PM

Hi Lubomir,

I try to build kernel using fix_gigabit_phy.patch but file to patch (drivers/net/phy/phy.c) is completely different in all source trees I am using.
Searching for the staff to patch I fount such in the file drivers/net/phy/phy_device.c.

Is it some technical issue or I am missing something?

EDIT: it is patch for u-boot.

Best ragards
Chris

LubOlimex · April 11, 2016, 10:12:56 AM

Hey,

The step-by-step instructions and the exact sources we used are now also available at GitHub. Refer to this document:

https://github.com/OLIMEX/OLINUXINO/blob/master/SOFTWARE/A20/A20-build-3.4.103-release-2/build_instructions_A20_Olimex_kernel_3.4.103%2B_Jessie_rel_2_with_camera_support.txt

This is also a helpful read:

https://github.com/OLIMEX/OLINUXINO/blob/master/SOFTWARE/A20/A20-build-3.4.103-release-2/usage_and_image_description_A20-Olimex_kernel_3.4.103%2B_Jessie_rel_2_with_camera_support.txt

Best regards,
Lub/OLIMEX

chradev · April 11, 2016, 02:26:16 PM

Thanks Lubomir,

I have already soled my problems:
http://forum.armbian.com/index.php/topic/853-armbian-customization/page-2#entry7491

Even ported GBit fix patch and eMMC support for A20-Olinuxino-Lime2-eMMC to Armbian 5.07

default (with kernel 3.4): http://forum.armbian.com/index.php/topic/853-armbian-customization/page-2#entry7496
and next (with kernel 4.4): http://forum.armbian.com/index.php/topic/853-armbian-customization/page-2#entry7494

Best regards
Chris

chradev · April 14, 2016, 09:33:10 AM

Hi to All,

I have finally succeeded to install and customize RPI Monitor 2.10 in Armbian 5.07 with Kernel 4.4.6 and run it on A20-Olinuxino-Lime2-eMMC.

You can find the report of the series of thermal and power tests done with and without CPU and Network load on the following post:
http://forum.armbian.com/index.php/topic/853-armbian-customization/page-2#entry7724

The good news is that there are no hangs while testing even the temperatures of both CPU and PMU chips go up to 58°C.

Best regards
Chris

chradev · April 15, 2016, 01:52:35 PM

Hi to All,

You can find a short summary of the thermal and power tests on Lime2-eMMC:
http://forum.armbian.com/index.php/topic/853-armbian-customization/page-2#entry7762

It is good to mention that the peak network speed of 980Mbps measured is a quite well test result.
A good test results are measured SATA SSD R/W speeds of 90MB/s and 48MB/s respectively as well.

Best regards
Chris