[meta-freescale] Getting Started With A New freescale / NXP LS1021-TWR

Wed Aug 31 08:34:23 PDT 2016

Hi Bob,

I am pleased to report that using the latest community BSP I have been able to get an LS1021A-TWR-PB to boot and provide a login prompt.

Poky (Yocto Project Reference Distro) 2.1.1 ls1021atwr /dev/ttyS0

ls1021atwr login: root
root at ls1021atwr:~#
root at ls1021atwr:~# uname -a
Linux ls1021atwr 3.12.37-rt51+ls1+gf488de6 #1 SMP Wed Aug 31 13:13:11 BST 2016 armv7l armv7l armv7l GNU/Linux

My original problem was an issue with the command I had saves as an environment variable in u-boot. Once that was corrected things started to work much better. My next hiccup was trying to do an NFS boot when the kernel does not seem to like starting with a static IP address.  Now I am up and rolling the IP stack is at least working for a local loopback ping.

> There are older versions of the Tower board with earlier (rev 1 ) silicon.  I have one of these, but it's on the shelf.
Do you know if there is a way to determine which version of silicon the chip is?  As I have got this all up and working with the latest code, I take it that I am looking at a board with the more recent silicon version on it.

Regards,

Thomas A. F. Thorne<mailto:Thomas.Thorne at Net2Edge.com>  Software Engineer  Net2Edge<http://www.net2edge.com/>

From: Bob Cochran [mailto:yocto at mindchasers.com]
Sent: 26 August 2016 21:16
To: Thomas Thorne <Thomas.Thorne at net2edge.com>; Zhenhua Luo <zhenhua.luo at nxp.com>
Cc: meta-freescale at yoctoproject.org
Subject: Re: [meta-freescale] Getting Started With A New freescale / NXP LS1021-TWR

Hi Tom,

Yes, I can get an LS1021A-TWR-PB to boot Linux and also run CodeWarrior using all master branches.   I'm doing a fresh build now and can re-confirm this a little later.

Which repo are you using for meta-freescale and linux-qoriq?

I think using github.com/Freescale/meta-freescale.git will give workable results now.

There are older versions of the Tower board with earlier (rev 1 ) silicon.  I have one of these, but it's on the shelf.

Bob

On 08/26/2016 03:55 AM, Thomas A. F. Thorne MEng AUS MIET wrote:

Hello Zhenhua,

Thank you for your help, setting that missing variable soleved my

issue!  I did:

=> setenv consoledev ttyS0

After that I was able to get the netboot command I had working!  Linux

started up and then issued a Kernel panic.  At least I have some out put

to work with now though.

To be honest I have no idea which kernel I just booted over NFS, it

could be from the freescale SDK, a neat Yocto Fido or Krogoth with

community or the one build as per the community instructions.  I'll try

booting with something known and see how var I get.

Grateful Regards,

Thomas Thorne  Software Engineer  Net2Edge Limited

On 26/08/16 04:26, Zhenhua Luo wrote:

Hello Thomas,

In u-boot environment, you don't set the "consoledev" variable. Please set this variable and try again.

Best Regards,

Zhenhua

-----Original Message-----

From: meta-freescale-bounces at yoctoproject.org<mailto:meta-freescale-bounces at yoctoproject.org> [mailto:meta-freescale-

bounces at yoctoproject.org<mailto:bounces at yoctoproject.org>] On Behalf Of Thomas A. F. Thorne MEng AUS MIET

Sent: Thursday, August 25, 2016 8:53 PM

To: meta-freescale at yoctoproject.org<mailto:meta-freescale at yoctoproject.org>

Subject: [meta-freescale] Getting Started With A New freescale / NXP LS1021-

TWR

Good afternoon,

Has anyone got a kernel from a recent release to come up on a recently

produced LS1021TWR board?  I have been struggling to get an LS1021-TWR

board booting from images that I have generated using the community

freescale.  I have also tried to use the freescale SDK for the board without

much success, so it seems likely there is some common fault, probably with my

configuration, if not the hardware or pre-loaded binaries.

I ask specifically about it being a recently produced board as it sounds as if the

CPU has been updated and may not work as it did before.  This is based off of

some discussions I had with a distributor over the past couple of weeks.

Initially I thought this was something causing an issue with just the LS1021-IOT

boards and their SDKs but it sounds like both Internet Of Things and ToWeR

designs are effected.

I had made a post about my difficulties on the NXP Community site, but not

received any comments on it yet.

https://community.nxp.com/thread/432937  The post includes a summary of

my issue, the environment variables that I have set and the serial output from

the board.  I can provide further details through this mailing list too, but I did

not want to generate a huge email full of what might be irrelevant data.  The

short summary is that I get as far as the "Starting kernel ..." message and then

see no further output from the board.  This is true when trying to boot from

the SD card or over NFS.

If anyone can provide any suggestions or pointers I would be very grateful to

hear them.

Regards, Thomas

--

Thomas Thorne  Software Engineer  Net2Edge Limited

Tel: +44 3450 130 030

Email: Thomas.Thorne at Net2Edge.com<mailto:Thomas.Thorne at Net2Edge.com>

Web: http://www.Net2Edge.com/

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