From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Sat, 27 Jun 2009 11:19:25 +0200 (CEST) Received: from h5.dl5rb.org.uk ([81.2.74.5]:32909 "EHLO h5.dl5rb.org.uk" rhost-flags-OK-OK-OK-OK) by ftp.linux-mips.org with ESMTP id S1492309AbZF0JTR (ORCPT ); Sat, 27 Jun 2009 11:19:17 +0200 Received: from h5.dl5rb.org.uk (localhost.localdomain [127.0.0.1]) by h5.dl5rb.org.uk (8.14.3/8.14.3) with ESMTP id n5R9Eh9i015035; Sat, 27 Jun 2009 10:14:44 +0100 Received: (from ralf@localhost) by h5.dl5rb.org.uk (8.14.3/8.14.3/Submit) id n5R9EhaR015033; Sat, 27 Jun 2009 10:14:43 +0100 Date: Sat, 27 Jun 2009 10:14:43 +0100 From: Ralf Baechle To: Aurelien Jarno Cc: Kaz Kylheku , linux-mips@linux-mips.org Subject: Re: Broadcom Swarm support Message-ID: <20090627091443.GC3235@linux-mips.org> References: <20090624063453.GA16846@volta.aurel32.net> <20090626232432.GB3235@linux-mips.org> <20090627051026.GB18476@hall.aurel32.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20090627051026.GB18476@hall.aurel32.net> User-Agent: Mutt/1.5.18 (2008-05-17) Return-Path: X-Envelope-To: <"|/home/ecartis/ecartis -s linux-mips"> (uid 0) X-Orcpt: rfc822;linux-mips@linux-mips.org Original-Recipient: rfc822;linux-mips@linux-mips.org X-archive-position: 23515 X-ecartis-version: Ecartis v1.0.0 Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org X-original-sender: ralf@linux-mips.org Precedence: bulk X-list: linux-mips 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