From: Misbah khan <misbah_khan@engineer.com>
To: linuxppc-embedded@ozlabs.org
Subject: Re: Drivers' probe function calling order
Date: Fri, 4 Jan 2008 00:41:14 -0800 (PST) [thread overview]
Message-ID: <14612559.post@talk.nabble.com> (raw)
In-Reply-To: <20080103215456.GA20691@mail.gnudd.com>
Hi Mr Rubini ...
I am writing a driver in which device port is mapped to CPLD and 8 bit data
bus is directly connected from processor to CPLD. Read write on CPLD memory
mapped (buffer/register) is required to control the device. This is now IO
mapped to processor.
I need to know whether i am right if i impliment like this :-
addr=ioremap(base_addr,size); // Remap to Mem mapped
address
out_8(addr) and in_8(addr);
Alessandro Rubini wrote:
>
>
>> how can I force the system to call
>> probe function of the spi driver first?
>
> You can declare their init functions at different initcall level. For
> example declaring the dataflash one as late_initcall(). Or declare
> the spi one as subsys_initcall() -- whatever makes more sense.
>
> There might be cleaner ways according to your setup, but this will
> surely work.
>
> /alessandro
> _______________________________________________
> Linuxppc-embedded mailing list
> Linuxppc-embedded@ozlabs.org
> https://ozlabs.org/mailman/listinfo/linuxppc-embedded
>
>
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next prev parent reply other threads:[~2008-01-04 8:41 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-03 16:57 Drivers' probe function calling order DI BACCO ANTONIO - technolabs
2008-01-03 18:04 ` Jeff Mock
2008-01-03 21:54 ` Alessandro Rubini
2008-01-04 8:41 ` Misbah khan [this message]
2008-01-04 10:20 ` ioremap and outb Alessandro Rubini
2008-01-04 10:45 ` Arnd Bergmann
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