[U-Boot-Users] How BRG output can be routed to a pin

[U-Boot-Users] How BRG output can be routed to a pin

[Apoorv_Sangal]

Hi All,
I am working on Motorola Power Quicc II 8266 based PMC card.
Can any one please let me know how to route the BRG output to a pin.

Thanks and Regards,
Apoorv
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[U-Boot-Users] How BRG output can be routed to a pin

[Jerry Van Baren]

Apoorv_Sangal wrote:
> Hi All,
> I am working on Motorola Power Quicc II 8266 based PMC card.
> Can any one please let me know how to route the BRG output to a pin.
> 
> Thanks and Regards,
> Apoorv

You need to initialize the proper port to do this.
1) Figure out which port pin the BRG comes out.  Many functions are 
routable to two different pins, a "primary" (bolded in the User's 
Manual) and "secondary".  Board schematics and/or hardware support is 
helpful here.  For instance, BRG6:BRGO is PC21.

2) Look this up in Section 35 of your 8260 User's Manual (or other 
documentation).

3) In my random pick of BRG6, Table 35-7 (p. 35-15) shows that bit 21 of 
register PSORC needs to be 0 and bit 21 of PDIRC needs to be 1.

4) Find your board's port initialization and Do The Right Thing with it 
(alternately, you may need/want to put this in your support code for 
whatever is using the BRG).

gvb

[U-Boot-Users] How BRG output can be routed to a pin

[Wolfgang Denk]

In message <3D9FDCA910DD4445896A0BE5ECF009D40240EFC1@bla.satyam.com> you wrote:
>
> I am working on Motorola Power Quicc II 8266 based PMC card.
> Can any one please let me know how to route the BRG output to a pin.

This is something you can find the processor's User's Manual.  Please
look it up there.

Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
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