From: Jon Masters <jonathan@jonmasters•org>
To: Rupesh S <rupesh.sugathan@gmail•com>
Cc: jonathan@jonmasters•org, linuxppc-embedded@ozlabs•org
Subject: Re: PPC kernel hangs
Date: Thu, 14 Oct 2004 22:23:44 +0100 [thread overview]
Message-ID: <20041014212344.GA789@apogee.jonmasters.org> (raw)
In-Reply-To: <1e44ebcf0410140944620f1dab@mail.gmail.com>
On Thu, Oct 14, 2004 at 09:44:30AM -0700, Rupesh S wrote:
> ################################################################
> volatile __u32* __fpga;
>
> __fpga = (__u32*) ioremap_nocache(0x60000000, (4*1024));
>
> /* writel(data, ((__u32)__fpga + 0x0C)); */ /* This does not work */
>
> *(volatile __u32*)((__u32)__fpga + 0x0C) = data; /* This works */
> #############################################################
Hi Rupesh,
Notice that you're casting as a pointer in one case, and in the other you're not.
Jon.
prev parent reply other threads:[~2004-10-14 21:24 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-10-12 21:24 PPC kernel hangs Rupesh S
2004-10-12 21:36 ` Eugene Surovegin
2004-10-12 23:03 ` Jon Masters
2004-10-12 23:05 ` Jon Masters
2004-10-12 23:34 ` Eugene Surovegin
2004-10-13 18:00 ` Jon Masters
2004-10-14 16:44 ` Rupesh S
2004-10-14 21:23 ` Jon Masters [this message]
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