From: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
To: Artyom Tarasenko <atar4qemu@gmail.com>,
Paolo Bonzini <pbonzini@redhat.com>
Cc: "Hervé Poussineau" <hpoussin@reactos.org>,
qemu-ppc@nongnu.org, "Alexander Graf" <agraf@suse.de>,
"Andreas Färber" <afaerber@suse.de>,
qemu-devel <qemu-devel@nongnu.org>
Subject: Re: [Qemu-devel] [PATCH 2/2] m48t59: add mem_base value to m48t59_init_isa()
Date: Mon, 19 Jan 2015 16:57:11 +0000 [thread overview]
Message-ID: <54BD3767.4080100@ilande.co.uk> (raw)
In-Reply-To: <CACXAS8CYA=HUuThp2fFLtWMOHGJQu_ZQzoVvvFs0KfvaXhhniA@mail.gmail.com>
On 19/01/15 16:17, Artyom Tarasenko wrote:
>> Is there an "EBus bridge" PCI device similar to the PCI-to-ISA bridge?
>
> As physical devices there are integrated SBus-to-EBus and PCI-to-EBus bridges.
>
> But actually I may have been wrong about NVRAM always sitting on the
> EBus: looking at the page 28 of "UltraSPARC™-IIi User's Manual"
> (805-0087.pdf), I see that NVRAM, Serial and other controllers reside
> in a "PC compatible SuperIO" chip which sits on a PCI bus.
There's definitely a PCI device for a PCI-EBus bridge that we discover
during enumeration and attach to that (for example the EBus properties
in OpenBIOS can be found in the attach callback for the bridge PCI
device in drivers/pci.c).
ATB,
Mark.
next prev parent reply other threads:[~2015-01-19 16:58 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-19 11:35 [Qemu-devel] [PATCH 0/2] m48t59: add year offset and MMIO ISA mapping Mark Cave-Ayland
2015-01-19 11:35 ` [Qemu-devel] [PATCH 1/2] m48t59: introduce new year_offset qdev property Mark Cave-Ayland
2015-01-19 12:06 ` Artyom Tarasenko
2015-01-19 12:20 ` Mark Cave-Ayland
2015-01-19 11:35 ` [Qemu-devel] [PATCH 2/2] m48t59: add mem_base value to m48t59_init_isa() Mark Cave-Ayland
2015-01-19 12:45 ` Paolo Bonzini
2015-01-19 12:57 ` Artyom Tarasenko
2015-01-19 12:59 ` Paolo Bonzini
2015-01-19 13:12 ` Artyom Tarasenko
2015-01-19 15:01 ` Andreas Färber
2015-01-19 15:22 ` Artyom Tarasenko
2015-01-19 15:31 ` Paolo Bonzini
2015-01-19 15:38 ` Andreas Färber
2015-01-19 16:01 ` Paolo Bonzini
2015-01-19 16:17 ` Artyom Tarasenko
2015-01-19 16:34 ` Paolo Bonzini
2015-01-19 18:17 ` Maciej W. Rozycki
2015-01-19 16:57 ` Mark Cave-Ayland [this message]
2015-01-19 16:55 ` Mark Cave-Ayland
2015-01-19 20:03 ` Andreas Färber
2015-01-20 9:54 ` Artyom Tarasenko
2015-01-19 16:42 ` Mark Cave-Ayland
2015-01-19 21:16 ` Hervé Poussineau
2015-01-19 15:04 ` Peter Maydell
2015-01-19 16:48 ` Mark Cave-Ayland
2015-01-19 16:50 ` Peter Maydell
2015-01-19 12:09 ` [Qemu-devel] [PATCH 0/2] m48t59: add year offset and MMIO ISA mapping Artyom Tarasenko
2015-01-19 21:59 ` Hervé Poussineau
2015-01-20 10:16 ` Artyom Tarasenko
2015-01-20 14:19 ` Mark Cave-Ayland
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