From mboxrd@z Thu Jan 1 00:00:00 1970 From: jmkrzyszt@gmail.com (Janusz Krzysztofik) Date: Fri, 11 Nov 2011 00:33:08 +0100 Subject: [PATCH] ARM: OMAP: Fix map_io for Amstrad E3 In-Reply-To: References: <20111110000421.GU31337@atomide.com> Message-ID: <201111110033.09159.jmkrzyszt@gmail.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Thursday 10 of November 2011 at 01:28:58, Aaro Koskinen wrote: > Hi, > > On 10.11.2011, at 2.04, Tony Lindgren wrote: > > * Aaro Koskinen [111109 15:25]: > >> On 10.11.2011, at 1.39, Russell King - ARM Linux wrote: > >>> On Wed, Nov 09, 2011 at 03:25:25PM -0800, Tony Lindgren wrote: > >>>> Commit 7b88e62f5d219a86d81bdf4388012c97dc42e8f8 (ARM: OMAP1: Use > >>>> generic > >>>> map_io, init_early and init_irq) changed omap1 to use generic > >>>> map_io. > >>>> > >>>> Looks like I missed one board though. Fix this by adding a custom > >>>> map_io for Amstrad E3. > >>>> > >>>> Reported-by: Aaro Koskinen > >>>> Signed-off-by: Tony Lindgren > >>>> > >>>> --- > >>>> Untested, does this help? > >>>> --- a/arch/arm/mach-omap1/board-ams-delta.c > >>>> +++ b/arch/arm/mach-omap1/board-ams-delta.c > >>>> @@ -302,8 +302,6 @@ static void __init ams_delta_init(void) > >>>> omap_cfg_reg(J19_1610_CAM_D6); > >>>> omap_cfg_reg(J18_1610_CAM_D7); > >>>> > >>>> - iotable_init(ams_delta_io_desc, ARRAY_SIZE(ams_delta_io_desc)); > >>>> - > >>> > >>> This is definitely wrong. Using iotable_init() after map_io has > >>> returned > >>> has (and remains) a serious bug - doing so may _appear_ to work > >>> but as it > >>> doesn't obtain its memory from the standard kernel memory > >>> allocators, it > >>> will lead to duplicate usage of that memory. > >> > >> Also, the patch did not help. It still hangs like before. > > > > Hmm that patch is needed for sure but sounds like there's also > > something else wrong.. Can you try to git bisect it? > > Ok, I'll try bisecting tomorrow. Hi Aaro, Please let me know if you think I could help, or I'll wait for your findings, to avoid duplicating efforts. Thanks, Janusz