* MPC5200 memory mapped IO
@ 2007-02-22 22:25 trembfra
2007-02-23 3:56 ` Grant Likely
0 siblings, 1 reply; 2+ messages in thread
From: trembfra @ 2007-02-22 22:25 UTC (permalink / raw)
To: linuxppc-embedded
Hi!
I am working on a driver to interface a FPGA chip with the MPC5200 on the local bus plus and I have two questions.
Is it normal that ioremap work without calling mem_request_region before when accessing to mpc5200 registers?
And do I need to call mem_request_region to access to memory mapped device on local bus plus?
Regards,
Fran=e7ois
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: MPC5200 memory mapped IO
2007-02-22 22:25 MPC5200 memory mapped IO trembfra
@ 2007-02-23 3:56 ` Grant Likely
0 siblings, 0 replies; 2+ messages in thread
From: Grant Likely @ 2007-02-23 3:56 UTC (permalink / raw)
To: trembfra; +Cc: linuxppc-embedded
On 2/22/07, trembfra@cgocable.ca <trembfra@cgocable.ca> wrote:
> Hi!
>
> I am working on a driver to interface a FPGA chip with the MPC5200 on the local bus plus and I have two questions.
>
> Is it normal that ioremap work without calling mem_request_region before when accessing to mpc5200 registers?
Yes
>
> And do I need to call mem_request_region to access to memory mapped device on local bus plus?
No
--
Grant Likely, B.Sc. P.Eng.
Secret Lab Technologies Ltd.
grant.likely@secretlab.ca
(403) 399-0195
^ permalink raw reply [flat|nested] 2+ messages in thread
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