From: Ralf Baechle <ralf@oss.sgi.com>
To: Jun Sun <jsun@mvista.com>
Cc: Matthew Dharm <mdharm@momenco.com>, Linux-MIPS <linux-mips@oss.sgi.com>
Subject: Re: set_io_port_base()?
Date: Thu, 21 Feb 2002 04:30:33 +0100 [thread overview]
Message-ID: <20020221043033.A1430@dea.linux-mips.net> (raw)
In-Reply-To: <3C745B0B.84203D3F@mvista.com>; from jsun@mvista.com on Wed, Feb 20, 2002 at 06:27:23PM -0800
On Wed, Feb 20, 2002 at 06:27:23PM -0800, Jun Sun wrote:
> This is actually right. This way if you pass an virtual at
> (mips_io_port_base + delta), you will get a physical address
> (GT_PCI_IO_BASE + delta), the desired place.
>
> Most boards don't need this funky ioremap() and base addr substraction trick,
> but ocelot has the IO address placed beyond normal kseg1 addressing range.
If you ever think about the value of the the address you're making
something wrong ...
Ralf
next prev parent reply other threads:[~2002-02-21 4:30 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-02-21 1:36 set_io_port_base()? Matthew Dharm
2002-02-21 1:57 ` set_io_port_base()? Ralf Baechle
2002-02-21 2:05 ` set_io_port_base()? Matthew Dharm
2002-02-21 2:13 ` set_io_port_base()? Ralf Baechle
2002-02-21 2:27 ` set_io_port_base()? Jun Sun
2002-02-21 2:48 ` set_io_port_base()? Matthew Dharm
2002-02-21 2:48 ` set_io_port_base()? Matthew Dharm
2002-02-21 3:03 ` set_io_port_base()? Jason Gunthorpe
2002-02-21 5:35 ` set_io_port_base()? Jun Sun
2002-02-21 3:30 ` Ralf Baechle [this message]
2002-02-21 16:34 ` pthread support in mipsel-linux Wayne Gowcher
2002-02-21 17:55 ` H . J . Lu
2002-02-21 18:12 ` Wayne Gowcher
2002-02-21 18:25 ` H . J . Lu
2002-02-21 18:45 ` Wayne Gowcher
2002-02-22 8:52 ` Florian Lohoff
2002-02-22 13:38 ` Maciej W. Rozycki
2002-02-22 13:45 ` Hiroyuki Machida
2002-02-22 14:28 ` Maciej W. Rozycki
2002-02-22 16:53 ` H . J . Lu
2002-02-22 16:57 ` H . J . Lu
2002-02-22 17:06 ` Maciej W. Rozycki
2002-02-22 17:14 ` H . J . Lu
2002-04-19 17:06 ` Equivalent of ioperm / iopl in linux mips ? Wayne Gowcher
2002-04-20 9:03 ` Geert Uytterhoeven
2002-04-22 11:35 ` Maciej W. Rozycki
2002-04-22 14:55 ` Geert Uytterhoeven
2002-04-22 15:30 ` Maciej W. Rozycki
2002-04-22 15:33 ` Geert Uytterhoeven
2002-04-22 17:44 ` Ralf Baechle
2002-04-22 18:01 ` Maciej W. Rozycki
2002-02-21 2:08 ` set_io_port_base()? Matthew Dharm
2002-02-21 2:16 ` set_io_port_base()? Ralf Baechle
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