From: Ralf Baechle <ralf@linux-mips.org>
To: Aurelien Jarno <aurelien@aurel32.net>
Cc: Kaz Kylheku <KKylheku@zeugmasystems.com>, linux-mips@linux-mips.org
Subject: Re: Broadcom Swarm support
Date: Sat, 27 Jun 2009 10:14:43 +0100 [thread overview]
Message-ID: <20090627091443.GC3235@linux-mips.org> (raw)
In-Reply-To: <20090627051026.GB18476@hall.aurel32.net>
On Sat, Jun 27, 2009 at 07:10:26AM +0200, Aurelien Jarno wrote:
> Yes, booting on the IDE controller.
Chances are it's a bug in the PIO IDE driver or it's interaction with
update_mmu_cache(). If I'm right you should not see the issue if you
boot of another block device with DMA like a PCI PATA/SATA card.
Which generally is a sane thing to do - the onboard controller is a
quick hack to demonstrate the capabilities of the BCM1250's GPIO features;
in practical terms it totally sucks but I SATA card solves that. If
you do that, get a 64-bit card. 32-bit DMA PCI cards have other issues
in Sibyte systems.
Ralf
next prev parent reply other threads:[~2009-06-27 9:19 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-06-24 6:34 Broadcom Swarm support Aurelien Jarno
2009-06-24 22:18 ` Kaz Kylheku
2009-06-24 22:18 ` Kaz Kylheku
2009-06-25 1:48 ` icache flushing (Re: Broadcom Swarm support) Atsushi Nemoto
2009-06-26 21:19 ` Broadcom Swarm support Aurelien Jarno
2009-06-26 23:24 ` Ralf Baechle
2009-06-27 5:10 ` Aurelien Jarno
2009-06-27 9:14 ` Ralf Baechle [this message]
2009-06-27 13:59 ` Atsushi Nemoto
2009-06-27 15:48 ` Ralf Baechle
2009-06-27 16:09 ` Atsushi Nemoto
2009-06-27 16:11 ` Atsushi Nemoto
2009-06-29 19:08 ` Ralf Baechle
2009-06-30 14:00 ` Atsushi Nemoto
2009-07-06 13:56 ` Atsushi Nemoto
2009-06-27 15:49 ` Ralf Baechle
2009-06-30 17:10 ` Kaz Kylheku
2009-06-30 17:10 ` Kaz Kylheku
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