andreas.oster | 27 Nov 12:14 2015

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游俊德 | 20 Nov 07:21 2015

Question about armv7_icache_sync_range function


I have a question for armv7_icache_sync_range function in

        ldr     ip, .Larmv7_line_size
        cmp     r1, #0x8000
        movcs   r1, #0x8000

The register r1 is the size of range to sync.
My question is, why it is limited to 0x8000 (32K bytes) ?

Similar limitation also existed in following functions:

It's so strange!

The function armv5_ec_icache_sync_range in

        ldr     ip, .Larmv5_ec_line_size
        cmp     r1, #0x4000
        bcs     .Larmv5_ec_icache_sync_all

It will use icache_sync_all function if size greater than 0x4000,
(Continue reading)

andreas.oster | 7 Nov 18:58 2015

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andreas.oster | 5 Nov 06:52 2015

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andreas.oster | 5 Nov 07:03 2015

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Adele Smith | 2 Nov 16:32 2015

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Alexander Kratzsch | 19 Oct 22:02 2015

OpenBSD on Olinuxino-Lime2

Hi everybody!

I recently bought a Olinuxino-Lime2 and wanted to see if I could get
OpenBSD up and running.

It is my first time I am doing something like this and currently I am
stuck.  I tried to boot with the cubieboard image, as this board is
based on an Allwinner A20 and this thread said that it might be
supported (I do not need X):

The original u-boot loader used by the miniroot failed to initialize
the DRAM (both 5.7-release and 5.8-release), so I used the one from
over here:

Now I have the same problems as Leonardo describes another thread.
The system boots and freezes at some point. I have attached a full log

I have read all the threads which showed up for the search terms
'olinuxino' and 'sunxi', but none gave me any helpful advise.

Does anyone have some idea I could try?

Thank you.

--- full log ---
(Continue reading)

Leonardo Guardati | 3 Oct 11:54 2015

pcDuino3_Nano mount root problems on boot

  I'm back trying to make the pcDuino3_Nano board
work with OpenBSD.

The u-boot version shipped with the board:
U-Boot 2011.09-rc1 (Jul 03 2013 - 17:40:47) Allwinner Technology

Is not able to load openbsd from sd card.

Back in august I wrote to the list with a config option for
u-boot 2015-07 to make the bsd.umg image load; that
[*] Enable workarounds for booting old kernels 
under ARM Architecture of the uboot menuconfig.

Now, using the last uboot git version

U-Boot 2015.10-rc3-00297-g1a9c229 (Sep 27 2015 - 11:01:54 +0200) Allwinner Technology

it would stop at dram initialization:

DRAM:Timeout initialising DRAM

I had to change another config option to make it work:

"ARM Architecture" -> "sunxi dram timings" set to "JEDEC DDR3-800E / DDR3-1066G / DDR3-1333J"

instead of "Magic vendor timings from Android"

Now I'm back to square one with the same problem: openbsd loads fine but stuck at the
(Continue reading)

Joel Carnat | 24 Sep 11:39 2015

Choosing an i.MX6


I would like to run OpenBSD on i.MX6 but wonder which board to get.
I'm no developper but would like to provide (personnal) email and httpd stuff on it.

I've identified the following "interesting" boards : Nitrogen6X, CuBox-i4Pro and CompuLab Utilite.

Which of those would be the best-to-buy regarding long-term support ?


Average Joe | 6 Aug 12:53 2015

Cubieboard 2 boot from SD card fails

Recently I bought a Cubieboard 2 with hope that I'll be able to run OpenBSD
on it. The armv7 page says the board is supported and all the devices I hoped
to use are listed as supported.
Installation instructions seemed dead simple. However, I am
struggling for two days already trying to boot this thing up and have gotten

I want to install the snapshot version of OpenBSD, so according
to INSTALL.armv7 I did:
# dd if=miniroot-cubie-58.fs of=/dev/rsd3c bs=1m

After inserting the uSD card into the board and powering it up the following
appears on the serial console:

HELLO! BOOT0 is starting!
boot0 version : 3.0.0
dram size =1024
Ready to disable icache.
Jump to secend Boot.
[      0.132]

U-Boot 2011.09-rc1-00003-ge89ab14-dirty (Jan 03 2014 - 12:57:33)
Allwinner Technology

[      0.142]version: 1.1.0
[      0.145]pmbus:   ready
[      0.249]PMU: AXP209
[      0.252]PMU: AXP20x found
(Continue reading)

Олександр | 24 Jul 10:40 2015

MarS Board

	Hi all

Interested MarS Board maybe someone working with this board. Pleas  write about this board problems, etc
... .

Specification MarS Board from site:
    i.MX 6 Dual 1GHz Freescale, ARM Cortex-A9, NEON SIMD media accelerator, HD class 1080p encode/decode
video engine 
    4 Gb eMMC
    1 Gb DDR3 SDRAM, 4x256 МБ DDR3 SDRAM
    2 Mb SPI Flash 
    HDMI 1.4a 
    1 x USB OTG 
    4 x USB 2.0 HOST 
    порт RS-232 
    TF cards 
    10M/100М/1 Гб Ethernet 
    AUDMUX, 2xCAN, ECSPI2, 2xI2C, Camera/Parallel (8bit or 10bit), KPP, PWM, GPMI, SPDI, 4xUART, USDHC1,

Thanks for the answer.