* Using gpio in MPC8309
@ 2012-07-13 0:08 Gal Afel
2012-07-13 11:57 ` Gary Thomas
0 siblings, 1 reply; 2+ messages in thread
From: Gal Afel @ 2012-07-13 0:08 UTC (permalink / raw)
To: linuxppc-dev
Hello,
I just got a TWR-MPC8309 from Freescale running Embedded Linux OS. The kernel
version is Linux 2.6.11+pq3 patches and the kernel preconfig file is
linux_2.6.11_mpc8548_cds_def.config.
I'm new to processors running Linux and I'm having a hard time trying to
understand how can I program the GPIO and use them. Is there a tutorial or any
documentation you could provide me to get started on accessing the processor
pins please?
I'm using CodeWarrior Development Studio for Power Architecture version 10.0.2
and I haven't found a library that includes the functions to access the pins
functionality. Is there any documentation you could suggest me to do that please?
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Using gpio in MPC8309
2012-07-13 0:08 Using gpio in MPC8309 Gal Afel
@ 2012-07-13 11:57 ` Gary Thomas
0 siblings, 0 replies; 2+ messages in thread
From: Gary Thomas @ 2012-07-13 11:57 UTC (permalink / raw)
To: linuxppc-dev
On 2012-07-12 18:08, Gal Afel wrote:
> Hello,
>
> I just got a TWR-MPC8309 from Freescale running Embedded Linux OS. The kernel
> version is Linux 2.6.11+pq3 patches and the kernel preconfig file is
> linux_2.6.11_mpc8548_cds_def.config.
That's a really OLD kernel, plus it doesn't seem to match your hardware.
MPC8309 is a very different beast from the MPC8548.
>
> I'm new to processors running Linux and I'm having a hard time trying to
> understand how can I program the GPIO and use them. Is there a tutorial or any
> documentation you could provide me to get started on accessing the processor
> pins please?
>
> I'm using CodeWarrior Development Studio for Power Architecture version 10.0.2
> and I haven't found a library that includes the functions to access the pins
> functionality. Is there any documentation you could suggest me to do that please?
Try looking at the Linux kernel source file 'Documentation/gpio.txt'
--
------------------------------------------------------------
Gary Thomas | Consulting for the
MLB Associates | Embedded world
------------------------------------------------------------
^ permalink raw reply [flat|nested] 2+ messages in thread
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