quad uart driver for 852T

quad uart driver for 852T

[Dick Read (SkyLynx)]

Hello.  I am new to Embedded Linux and wish to find a driver or code for a
quad uart chip that I can use with the Analogue & Micro Adder II (MPC852T)
reference board.  I have never done a Linux driver before but am willing to
take the plunge here if I have to.  I see that someone as worked with a
16C554 on this mailing list and might have it working by now.  Besides the
suggestions for the UART code, what is the etiquette for asking people about
their work?  I have often heard Linux has tons of drivers but how do you
find the ones you need?

Thank you.
Dick Read
Skylynx Communications
206-780-5754


** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/

Re: quad uart driver for 852T

[Wolfgang Denk]

In message <NGBBKDOAELJBKFGCBALKCEMLCEAA.dread@skylynx.com> you wrote:
>
> Hello.  I am new to Embedded Linux and wish to find a driver or code for a
> quad uart chip that I can use with the Analogue & Micro Adder II (MPC852T)
> reference board.  I have never done a Linux driver before but am willing to
> take the plunge here if I have to.  I see that someone as worked with a
> 16C554 on this mailing list and might have it working by now.  Besides the

We are working on such a thing, too (although  with  a  very  special
hardware  interface;  the  chip  is attached to the PCMCIA controller
ports ...). We'll check it in on our CVS server  within  the  next  4
weeks or so.

> suggestions for the UART code, what is the etiquette for asking people about
> their work?  I have often heard Linux has tons of drivers but how do you
> find the ones you need?

Google, then ask.

Best regards,

Wolfgang Denk

--
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd@denx.de
You Don't Have To Be 'Damned' To Work Here, But It Helps!!!
                                             - Terry Pratchett, _Eric_

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RE: quad uart driver for 852T

[Rod Boyce]

This driver is supported nativly by the Linux kernel see
drivers/char/serial.c and include/asm/serial.h

All you have to do is ioremap the address of the quad UART, fill out the
structure in include/asm/serial.h and add the interrupt connection code from
your hardware interrupt to the serial interrupt in serial.c

Rod

-----Original Message-----
From: Dick Read (SkyLynx) [mailto:dread@skylynx.com]
Sent: Tuesday, December 09, 2003 11:30 AM
To: linuxppc-embedded@lists.linuxppc.org
Subject: quad uart driver for 852T



Hello.  I am new to Embedded Linux and wish to find a driver or code for a
quad uart chip that I can use with the Analogue & Micro Adder II (MPC852T)
reference board.  I have never done a Linux driver before but am willing to
take the plunge here if I have to.  I see that someone as worked with a
16C554 on this mailing list and might have it working by now.  Besides the
suggestions for the UART code, what is the etiquette for asking people about
their work?  I have often heard Linux has tons of drivers but how do you
find the ones you need?

Thank you.
Dick Read
Skylynx Communications
206-780-5754


** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/