Re: System-On-Module

From: Lundberg, Johannes <johannes_at_brilliantservice.co.jp>
Date: Thu, 29 Jan 2015 18:27:08 +0900
What I'm most worried about is the graphics stack.. Some companies don't
seem so keen on handing out specs.

On Thursday, January 29, 2015, Ganbold Tsagaankhuu <ganbold_at_gmail.com>
wrote:

>
>
> On Thu, Jan 29, 2015 at 4:18 PM, Lundberg, Johannes <
> johannes_at_brilliantservice.co.jp
> <javascript:_e(%7B%7D,'cvml','johannes_at_brilliantservice.co.jp');>> wrote:
>
>> Hi All
>>
>> Thanks again for all the replies.
>>
>> How is the support for A15 and how is Qualcomm to work with when it comes
>> to porting?
>>
>> Thinking about this guy which is closer to what I want spec-wise..
>>
>> http://www.variscite.com/products/system-on-module-som/cortex-a15-krait/var-som-sd600-cpu-qualcomm-snapdragon600
>>
>>
>>
> I think IFC6410 has same SoC as above SoM and as for ifc6410 either mmc/sd
> or usb ehci driver needed in order to boot FreeBSD into multi user mode.
>
> Ganbold
>
>
>
>>
>> --
>> Johannes Lundberg
>> BRILLIANTSERVICE CO., LTD.
>>
>> On Thu, Jan 29, 2015 at 11:33 AM, Bernd Walter <ticso_at_cicely7.cicely.de
>> <javascript:_e(%7B%7D,'cvml','ticso_at_cicely7.cicely.de');>>
>> wrote:
>>
>> > On Wed, Jan 28, 2015 at 05:36:00PM -0700, Ian Lepore wrote:
>> > > On Thu, 2015-01-29 at 09:12 +0900, Lundberg, Johannes wrote:
>> > > > Ah now I see it has EDM connection. I didn't look carefully enough.
>> > All the
>> > > > images are with the expansion board attached..
>> > > >
>> > > > Spec-wise and portability-wise it seems like a good option but my
>> > hardware
>> > > > guy keeps warning me about Freescale that they often have hardware
>> > bugs and
>> > > > rather than fixing the bugs they pretend they are not there.. In
>> other
>> > > > words, Freescale is good for software developers because of open
>> > > > documentation but not so for hardware manufactures. Any experiences
>> > with
>> > > > this?
>> > >
>> > > The imx6 manuals include an errata list, so it would be good to check
>> > > that for anything specific that would matter to your projects.
>> >
>> > If you use a prebuild module then you don't get much in touch with
>> > the freescale chip fropm the hardware side.
>> > On the other hand, there are countless iMX6 boards out there with
>> > schematics online.
>> > My recently bought Novena even came with printed schematics and they
>> > open sourced the HW design files as well.
>> > I don't think there are hidden surprises on the hardware side.
>> >
>> > > For the devices we use in our products everything is good so far with
>> > > the hardware.  That's emmc, sdcard, ethernet, i2c, uarts, usb, and
>> lots
>> > > of gpio (inputs and outputs).  The ethernet is gigabit but has a known
>> > > limitation of 40MB/s due to the bus it's connected to in the chip.
>> (But
>> > > hey, it's documented so it's not a problem, right? :)
>> > >
>> > > You mentioned video, and we don't have that working on freebsd imx6
>> yet,
>> > > but there's not a ton of work to do.  There's a framebuffer driver for
>> > > imx5 and it has pretty much the same framebuffer hardware.  Getting
>> > > video output to a TTL LCD is probably just hours of work.  Getting it
>> to
>> > > an LVDS LCD or HDMI probably needs days of work (entire drivers
>> written,
>> > > potentially, I haven't looked into it).
>> >
>> > Sounds interesting for my Novena.
>> > The one I already got are board only (with some FPGA breakout, ...).
>> > They have HDMI though.
>> > But I'm also awaiting for the one with case and LCD panel.
>> > Not to forget that I have a fairy EDM carrier with LCD already.
>> > That said I'v always wondered how much work is it to get the camera
>> > interface running, since the Hummingboards can connect to the RPi
>> > camera modules.
>> >
>> > > Some audio support was recently committed, but I don't know much about
>> > > it yet.
>> > >
>> > > -- Ian
>> > >
>> > >
>> >
>> > --
>> > B.Walter <bernd_at_bwct.de <javascript:_e(%7B%7D,'cvml','bernd_at_bwct.de');>>
>> http://www.bwct.de
>> > Modbus/TCP Ethernet I/O Baugruppen, ARM basierte FreeBSD Rechner uvm.
>> >
>>
>> --
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-- 
--
Johannes Lundberg
BRILLIANTSERVICE CO., LTD.

-- 
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Received on Thu Jan 29 2015 - 08:27:10 UTC

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