Re: Uart on cpm2_io (was: Using modem signal in cpm2 uart for MPC8270)

On Tuesday 21 February 2006 10:20, Wojciech Kromer wrote:

Dnia 2006-02-21 09:58, U=C5=BCytkownik Mathieu Deschamps napisa=C5=82:

quoted

Hello,

Sorry to come with this UART issue again but I had no answer and no
better idea but asking people who knows 82xx uart well, people who
designed it.

My issue about this uart could be approched elseway : why is there a
modem_control conditionnal compilation option when PQ2 SCCs
(in normal operation mode which is default) take care of CTS,CD signals
(Chap 20-8 GSMR_L register DIAG MPC8280 PQ2 Ref. Manual ) ?

I fell like that is clearly a design-time choice matter that I need to
clarify.

And simply :
Is this version is known to be broken when activating this option ?

Do not know what this option is, probably for disabling code from
another driver.
With latest CVS version from denx.de you have only to enable CTS/RTS..
signals in menuconfig.
(And read my prior post if you're using SCC4 with SCC_CONSOLE)



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Thanks for your reply,

<> Do not know what this option is, probably for disabling code from
<> another driver.
=2E..or rather to enable it...(default is disabled). Allthesame :=20

Now it's clear it has historical reason and that I should not meddle with i=
t=20
in getting it enable. I guess it may be used for non-PQ2 or rather for non=
=20
dedicated pins assignement capable cpu in order to implement thoses signals
handling.

About SCC4 my version includes that code you spoke about in your prior=20
posts, but I'll use SCC4 as usb and not as console. Thus maybe this
turned nouse and has vanished in your version and that's why it's call a=20
"feature enhancement" yet. =20


Best Regards,

=20
Mathieu Deschamps
Com2gether Design Center
Electronic and Embedded Engineering Services
www.com2gether.net=20