From: Pawel Moll <pawel.moll@arm.com>
To: David Vrabel <david.vrabel@citrix.com>
Cc: "devicetree-discuss@lists.ozlabs.org"
<devicetree-discuss@lists.ozlabs.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH v6 6/9] ARM: vexpress: Motherboard RS1 memory map support
Date: Thu, 19 Jan 2012 17:31:33 +0000 [thread overview]
Message-ID: <1326994293.13748.9.camel@hornet.cambridge.arm.com> (raw)
In-Reply-To: <4F184900.8050901@citrix.com>
On Thu, 2012-01-19 at 16:46 +0000, David Vrabel wrote:
> > It does for me:
> >
> > # zcat /proc/config.gz | grep EARLY_PRINTK
> > CONFIG_EARLY_PRINTK=y
> > # cat /proc/device-tree/motherboard/arm,v2m-memory-map && echo
> > rs1
> > #
>
> earlyprintk needs to be on the kernel command line to enable it.
> Without this option it will work fine.
# cat /proc/cmdline
console=ttyAMA0,38400 earlyprintk rootwait root=/dev/mmcblk0p2 mmci.fmax=12000000 debug
I'll investigate the matter to the bottom, though. Your kernel config
would be helpful, thanks!
> It's also a problem when running as a guest under a hypervisor as there
> won't be any stage 2 translation table entries for non-existent peripherals.
>
> I think there needs to be someway of finding out from the DTB which UART
> to use.
Yess... The DT+earlyprintk problem was discussed several times already,
without any happy resolution so far...
Paweł
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next prev parent reply other threads:[~2012-01-19 17:31 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-15 14:02 [PATCH v6 0/9] Versatile Express DT support Pawel Moll
2011-12-15 14:02 ` [PATCH v6 1/9] ARM: versatile: Add missing ENDPROC to headsmp.S Pawel Moll
2011-12-15 14:02 ` [PATCH v6 2/9] ARM: vexpress: Get rid of MMIO_P2V Pawel Moll
2011-12-15 14:02 ` [PATCH v6 3/9] ARM: versatile: Map local timers using Device Tree when possible Pawel Moll
[not found] ` <1323957761-13553-4-git-send-email-pawel.moll-5wv7dgnIgG8@public.gmane.org>
2011-12-15 14:53 ` Rob Herring
2011-12-15 15:25 ` Pawel Moll
2011-12-15 17:25 ` Pawel Moll
2011-12-15 14:02 ` [PATCH v6 4/9] ARM: vexpress: Use FDT data in platform SMP calls Pawel Moll
2011-12-15 14:02 ` [PATCH v6 5/9] ARM: vexpress: Add Device Tree support Pawel Moll
2012-01-10 11:13 ` Jon Medhurst (Tixy)
2011-12-15 14:02 ` [PATCH v6 6/9] ARM: vexpress: Motherboard RS1 memory map support Pawel Moll
2012-01-04 16:35 ` David Vrabel
2012-01-19 13:21 ` Pawel Moll
[not found] ` <1326979266.32197.60.camel-okZbbLrgpR/YkXV2EHHjLW3o5bpOHsLO@public.gmane.org>
2012-01-19 16:46 ` David Vrabel
2012-01-19 17:31 ` Pawel Moll [this message]
2012-01-27 14:02 ` Pawel Moll
[not found] ` <1327672960.24701.55.camel-okZbbLrgpR/YkXV2EHHjLW3o5bpOHsLO@public.gmane.org>
2012-01-30 17:32 ` Dave Martin
2012-01-30 17:26 ` Dave Martin
2011-12-15 14:02 ` [PATCH v6 7/9] ARM: vexpress: Add Device Tree for V2P-CA5s core tile Pawel Moll
2011-12-15 14:02 ` [PATCH v6 8/9] ARM: vexpress: Add Device Tree for V2P-CA9 " Pawel Moll
2011-12-15 14:02 ` [PATCH v6 9/9] ARM: vexpress: Add Device Tree for V2P-CA15 core tile (TC1 variant) Pawel Moll
2012-01-10 14:21 ` David Vrabel
2012-01-19 13:27 ` Pawel Moll
[not found] ` <1326979652.32197.66.camel-okZbbLrgpR/YkXV2EHHjLW3o5bpOHsLO@public.gmane.org>
2012-01-19 13:34 ` Rob Herring
2012-01-19 13:43 ` Pawel Moll
[not found] ` <1326980594.32197.67.camel-okZbbLrgpR/YkXV2EHHjLW3o5bpOHsLO@public.gmane.org>
2012-01-19 14:01 ` Rob Herring
2012-01-19 14:51 ` Pawel Moll
[not found] ` <1326984672.32197.68.camel-okZbbLrgpR/YkXV2EHHjLW3o5bpOHsLO@public.gmane.org>
2012-01-19 17:00 ` David Vrabel
[not found] ` <4F184C48.2050505-Sxgqhf6Nn4DQT0dZR+AlfA@public.gmane.org>
2012-01-19 17:11 ` Russell King - ARM Linux
2012-01-19 17:27 ` Pawel Moll
[not found] ` <1326994035.13748.7.camel-okZbbLrgpR/YkXV2EHHjLW3o5bpOHsLO@public.gmane.org>
2012-01-19 17:50 ` Russell King - ARM Linux
[not found] ` <20120119175053.GE10404-l+eeeJia6m9vn6HldHNs0ANdhmdF6hFW@public.gmane.org>
2012-01-19 17:59 ` Grant Likely
2012-01-19 18:09 ` Nicolas Pitre
[not found] ` <alpine.LFD.2.02.1201191305180.19587-QuJgVwGFrdf/9pzu0YdTqQ@public.gmane.org>
2012-01-19 22:07 ` Grant Likely
2012-01-25 17:43 ` Pawel Moll
[not found] ` <1327513396.2355.28.camel-okZbbLrgpR/YkXV2EHHjLW3o5bpOHsLO@public.gmane.org>
2012-01-30 17:42 ` Dave Martin
[not found] ` <20120130174212.GH2248-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2012-01-30 21:31 ` Grant Likely
[not found] ` <20120130213115.GA22611-e0URQFbLeQY2iJbIjFUEsiwD8/FfD2ys@public.gmane.org>
2012-01-31 11:50 ` Dave Martin
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