From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Zang Roy-r61911 <tie-fei.zang@freescale.com>
Cc: linuxppc-dev list <linuxppc-dev@ozlabs.org>,
Yang Xin-Xin-r48390 <Xin-Xin.Yang@freescale.com>,
Paul Mackerras <paulus@samba.org>,
Alexandre.Bounine@tundra.com
Subject: RE: [PATCH/2.6.17-rc4 1/10] Powerpc: Add general support for mpc7 448h pc2 (Taiga) platform
Date: Fri, 02 Jun 2006 17:32:44 +1000 [thread overview]
Message-ID: <1149233565.16202.62.camel@localhost.localdomain> (raw)
In-Reply-To: <9FCDBA58F226D911B202000BDBAD4673066CF5BE@zch01exm40.ap.freescale.net>
> If I really need to use bat0 or bat1( I see that the general mmu use bat2 and bat3,
> where should I set up them?
>
> For tsi108 pci configuration access, I need to map 16Mbyte
> physical address. If I do not use an extra bat, I can not get the correct
> virtual address use ioremap.
What do you mean ? An ioremap will work, it will give you any virtual
address, you just have to store that in a global instead of hard coding
it. Hard coded virtual addresses are bad. Especially for things like PCI
config space that really isn't performance sensitive.
Ben.
next prev parent reply other threads:[~2006-06-02 7:32 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-06-02 7:29 [PATCH/2.6.17-rc4 1/10] Powerpc: Add general support for mpc7 448h pc2 (Taiga) platform Zang Roy-r61911
2006-06-02 7:32 ` Benjamin Herrenschmidt [this message]
-- strict thread matches above, loose matches on Subject: below --
2006-06-02 8:33 Liu Dave-r63238
2006-06-02 8:20 Zang Roy-r61911
2006-06-02 14:50 ` Kumar Gala
2006-06-03 0:36 ` Benjamin Herrenschmidt
2006-06-02 8:05 Zang Roy-r61911
2006-06-02 8:19 ` Benjamin Herrenschmidt
2006-06-02 7:40 Zang Roy-r61911
2006-06-02 7:38 Liu Dave-r63238
2006-06-02 8:17 ` Benjamin Herrenschmidt
2006-05-26 6:49 Zang Roy-r61911
2006-05-26 7:34 ` Benjamin Herrenschmidt
2006-05-24 7:23 Zang Roy-r61911
2006-05-19 1:45 Zang Roy-r61911
2006-05-18 10:49 Zang Roy-r61911
2006-05-18 10:21 Zang Roy-r61911
2006-05-18 10:35 ` Benjamin Herrenschmidt
2006-05-18 10:39 ` Paul Mackerras
2006-05-18 14:06 ` Kumar Gala
2006-05-18 16:35 ` Kumar Gala
2006-05-18 8:05 Zang Roy-r61911
2006-05-18 16:36 ` Kumar Gala
2006-05-18 7:12 Zang Roy-r61911
2006-05-18 7:22 ` Benjamin Herrenschmidt
2006-05-18 16:41 ` Kumar Gala
2006-05-18 22:04 ` Benjamin Herrenschmidt
2006-05-18 20:49 ` Andy Fleming
2006-05-26 6:05 ` Benjamin Herrenschmidt
2006-05-18 6:57 Zang Roy-r61911
2006-05-18 7:19 ` Benjamin Herrenschmidt
2006-05-18 16:43 ` Kumar Gala
2006-05-18 6:46 Zang Roy-r61911
2006-05-18 6:59 ` Benjamin Herrenschmidt
2006-05-18 4:12 Zang Roy-r61911
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