From: Arnd Bergmann <arnd@arndb•de>
To: linuxppc-embedded@ozlabs•org
Cc: "Ralf Trübenbach" <Ralf.Truebenbach@men•de>
Subject: Re: PCI Bus Mapping for MPC8548 with multiple PCI interfaces
Date: Mon, 29 Sep 2008 14:35:10 +0200 [thread overview]
Message-ID: <200809291435.10693.arnd@arndb.de> (raw)
In-Reply-To: <D0B748CCD5DF144CA5C56A9D860A31340FE1C0@men-exch1.intra.men.de>
On Monday 29 September 2008, Ralf Tr=FCbenbach wrote:
> Every bus is mapped independently. And PciConfigRead/Write functions
> convert the bus no. so that upper layers (and user) see a bus mapping
> similar to A). =20
>=20
> Maybe someone knows how U-Boot or Linux would map the interfaces?
>=20
You should use your option B) in the firmware, i.e. set up every PCI
independently from the others, startig at bus 0.
You should not fake the bus mapping but rather show the pci domains
separately to user space.
Arnd <><
prev parent reply other threads:[~2008-09-29 12:35 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-09-29 9:35 PCI Bus Mapping for MPC8548 with multiple PCI interfaces Ralf Trübenbach
2008-09-29 12:35 ` Arnd Bergmann [this message]
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