[okl4-developer] okl4 in qemu emulated gumstix environment

[Geoffrey Lee]

On Tue, Aug 26, 2008 at 07:51:20AM -0400, Ashish Bijlani wrote:
> thanks for the suggestion geoff. btw, how do you emulate net when
> running on skyeye?

I have not personally used the emulated networking support on 
skyeye before, so I am not sure what's the best way to go about it.
They seem to have some README in the source tarball which documents
this however.

> -ashish

	-gl

> 
> On Tue, Aug 26, 2008 at 7:43 AM, Geoffrey Lee <glee at ok-labs.com> wrote:
> > On Tue, Aug 26, 2008 at 06:05:28AM -0400, Ashish Bijlani wrote:
> >> The latest code doesn't have networking for gumstix. CONFIG_SMC is
> >> missing in "linux/kernel-2.6.23-v2/l4linux_config_gumstix". Simply
> >> adding CONFIG_SMC doesn't work in the latest code base.
> >
> >
> > Generally to avoid missing dependencies and other things it is
> > best to edit the configuration file with menuconfig or similar
> > to modify the Linux configuration.
> >
> > My feeling is you may find it easier to forward port the bits required
> > to make the SMC driver work than deal with the limitations
> > of using an older OKL4 release.
> >
> >        -gl
> >
> >>
> >> -Ashish
> >>
> >> On Tue, Aug 26, 2008 at 6:02 AM, Geoffrey Lee <glee at ok-labs.com> wrote:
> >> > On Tue, Aug 26, 2008 at 05:55:28AM -0400, Ashish Bijlani wrote:
> >> >> I'm using okl4-1.4.1.1 and it doesn't seem to be having ig_serial
> >> >> under "linux/kernel/arch/l4/drivers", however it has "l4e_console". Is
> >> >> this normal? How do I enter KDB before executing /etc/init.d/rc?
> >> >
> >> > The serial driver in 1.4.1.1 is quite different to what's in the
> >> > current release, hence it is normal not to find ig_serial.c.  Best
> >> > thing you can do is trace the execution path inside your driver.
> >> >
> >> > You can manually call L4_KDB_Enter() to enter the debugger.
> >> >
> >> > By the way is there any reason you cannot use a newer version of
> >> > OKL4?
> >> >
> >> >
> >> >        -gl
> >> >
> >> >>
> >> >> Thanks,
> >> >> Ashish
> >> >>
> >> >> On Tue, Aug 26, 2008 at 5:49 AM, Geoffrey Lee <glee at ok-labs.com> wrote:
> >> >> > On Tue, Aug 26, 2008 at 05:43:51AM -0400, Ashish Bijlani wrote:
> >> >> >> Thanks for your quick reply. However, I'm using okl4-1.4 and I didn't
> >> >> >> change anything in it. I get shell using skyeye but no network as
> >> >> >> skyeye does not emulate smc91x network card. I don't get shell in
> >> >> >> qemu. The face that it runs fine on skyeye, indicates that ig_serial
> >> >> >> has been configured properly, isn't it?
> >> >> >
> >> >> > Not necessarily, the simulator may sometimes behave differently
> >> >> > to how the hardware really behaves.  Please have a look around
> >> >> > the system to see if there are any clues of misbehavior, for
> >> >> > example, are you actually receiving any interrupts at all when
> >> >> > you hit a key on the serial?  Is the serial driver initialized
> >> >> > properly, or if vserial is present on the system at all?  Is there
> >> >> > any interaction between the vserial and OK Linux?  The KDB should be
> >> >> > quite helpful here.
> >> >> >
> >> >> >
> >> >> >        -gl
> >> >> >>
> >> >> >> -Ashish
> >> >> >>
> >> >> >> On Tue, Aug 26, 2008 at 5:39 AM, Geoffrey Lee <glee at ok-labs.com> wrote:
> >> >> >> > On Tue, Aug 26, 2008 at 05:04:57AM -0400, Ashish Bijlani wrote:
> >> >> >> >> Hi,
> >> >> >> >>
> >> >> >> >> I'm able to boot OKL4 in QEMU emulated gumstix environment. However,
> >> >> >> >> I'm not able to get "Linux user startup!" and following messages on
> >> >> >> >> the qemu serial console. Any ideas why?
> >> >> >> >>
> >> >> >> >> This is what I did:
> >> >> >> >>
> >> >> >> >> cp build/image.boot /tftpboot/.
> >> >> >> >> ../qemu-gumstix/arm-softmmu/qemu-system-arm -M gumstix -hda
> >> >> >> >> ../connex-gumstix/flash -net nic -net tap,ifname=qtap0  -m 256
> >> >> >> >> -monitor null -serial stdio -m 289 -nographic
> >> >> >> >>
> >> >> >> >> GUM>
> >> >> >> >> GUM> setenv ipaddr 10.0.0.231
> >> >> >> >> GUM> setenv serverip 10.0.0.29
> >> >> >> >> GUM> tftpboot a2000000 image.boot
> >> >> >> >> GUM> bootelf a2000000
> >> >> >> >>
> >> >> >> >> The OKL4 kernel, wombat, iguana everything is loaded and booted
> >> >> >> >> properly. However, I don't see any messages after :
> >> >> >> >>
> >> >> >> >> NET: Registered protocol family 15
> >> >> >> >> VFS: Mounted root (ext2 filesystem) readonly.
> >> >> >> >
> >> >> >> > This probably means ig_serial.c or the user-level serial driver
> >> >> >> > in drivers/ is misconfigured.  The kernel bootup messages get
> >> >> >> > shown via the KDB console, which gets routed to the driver
> >> >> >> > in the OKL4 kernel.  Once you get to Linux user startup
> >> >> >> > output gets routed through /dev/ttyS0, which is backed by
> >> >> >> > ig_serial.
> >> >> >> >
> >> >> >> >        -gl
> >> >> >> >
> >> >> >> >>
> >> >> >> >> Am I missing something?
> >> >> >> >>
> >> >> >> >> Thanks,
> >> >> >> >> Ashish
> >> >> >> >>
> >> >> >> >> _______________________________________________
> >> >> >> >> Developer mailing list
> >> >> >> >> Developer at okl4.org
> >> >> >> >> https://lists.okl4.org/mailman/listinfo/developer
> >> >> >> >>
> >> >> >> >
> >> >> >> > --
> >> >> >> >
> >> >> >> >
> >> >> >>
> >> >> >
> >> >> > --
> >> >> >
> >> >> >
> >> >>
> >> >
> >> > --
> >> >
> >> >
> >>
> >
> > --
> >
> >
> 

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