[Tinkerphones] [Letux-kernel] [PATCH 1/3] ARM: dts: add Netronix E60K02 board common file

H. Nikolaus Schaller hns at goldelico.com
Mon Sep 30 09:20:06 CEST 2019


Hi David,

> Am 29.09.2019 um 23:45 schrieb David Boddie <david at boddie.org.uk>:
> 
> On Fri, 27 Sep 2019 12:49:30 +0200, H. Nikolaus Schaller wrote:
> 
>> We think these type of e-book readers are really nice pieces of hardware
>> to be supported by LetuxOS.
>> 
>> Andreas has bought a Kobo Clara and I have got a Tolino Shine 3 (there are
>> IMHO other brand names as well) assuming they are identical (except
>> branding).
> 
> One place to look for more information is the MobileRead Wiki and forums:
> 
> https://wiki.mobileread.com/wiki/Tolino_Shine
> 
>> It is easy to snap-open the device and replace the ?SD inside so keeping
>> the original system safely and trying other things is easy.
> 
> It's the same with the Kobo Mini I have.

Nice!

> It makes experimenting a much more
> comfortable experience.
> 
> My device had a 4GB micro SD card inside, though I think it might have only
> been rated for 2GB:
> 
> https://www.mobileread.com/forums/showthread.php?p=2737506#post2737506

Yes, there was a change from the SD standards to allow more than 2GB.
Usually this is a combination of higher clock rates and an extension of
the sector addressing scheme. Which means that it is usually possible to
use big cards on a controller that was originally for small cards only.
It is only slower than the card would support.

> I used a break-out board to make it easier to insert and remove the card:
> 
> https://www.mobileread.com/forums/showthread.php?p=2742920#post2742920

The Tolino 3/Kobo Clara has a slightly different SD reader cage where it
is not difficult. At least so far :) I do not know how quickly it wears
out.

> 
>> There is also an RS232 (3.3V level) interface for the console and I have
>> soldered a cable with a connector to it so that I can plug it on demand
>> and connect to an adapter for a FTDI cable.
> 
> I didn't think to try that. I was fortunate that someone else had done the
> work of making a reasonably configured Linux kernel available. I've no idea
> if a more modern kernel would run on the i.MX50-based Kobo Mini.

Why not? AFAIK mainline kernels support the i.MX5 as well. Bigger work may
be to make the u-boot useable... The ones we have found are hacked in a
way that you can only load the original images without pain...

If you want to join our initiative I think there are enough
similarities to add another set of device tree files...

BR,
Nikolaus



More information about the Community mailing list