From: lee.jones@linaro.org (Lee Jones)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/2] Boottime: A tool for automatic measurement of kernel/bootloader boot time
Date: Tue, 20 Nov 2012 16:16:38 +0000 [thread overview]
Message-ID: <20121120161638.GD28265@gmail.com> (raw)
In-Reply-To: <20121115112543.GC21682@gmail.com>
> > > +/* for automatic boot timing testcases */
> > > +#define ATAG_BOOTTIME 0x41000403
> > Where can I refer this ATAG usage? can you point out the reference URL
> > or patches?
>
> I assumed this would be in Mainline u-boot, but apparently not.
> On closer inspection of the internal ST-Ericsson u-boot, this
> functionality appears to be provided by patches which currently
> exist as delta. So in essence, the bootloader you use will have
> to be patched in a similar way for you to retrieve information
> surrounding bootloader boot times.
>
> And there was me thinking it was magic. ;)
Okay, so I'm going through the motions of upstreaming this magic
now. Please see the link below for reference:
http://marc.info/?l=u-boot&m=135342273317337&w=2
--
Lee Jones
Linaro ST-Ericsson Landing Team Lead
Linaro.org ? Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
next prev parent reply other threads:[~2012-11-20 16:16 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-15 10:04 [PATCH 0/2] Boottime: measure bootloader and kernel bootup time Lee Jones
2012-11-15 10:04 ` [PATCH 1/2] Boottime: A tool for automatic measurement of kernel/bootloader boot time Lee Jones
2012-11-15 10:16 ` Kyungmin Park
2012-11-15 11:25 ` Lee Jones
2012-11-15 12:25 ` Arnd Bergmann
2012-11-15 17:31 ` Linus Walleij
2012-11-20 16:16 ` Lee Jones [this message]
2012-11-29 20:35 ` Simon Glass
2012-11-30 8:21 ` Lee Jones
2012-11-15 13:52 ` Andrew Murray
2012-11-15 14:37 ` Lee Jones
2012-11-15 10:04 ` [PATCH 2/2] clocksource: clksrc-dbx500-prcmu: Add boottime support Lee Jones
2012-11-15 10:15 ` [PATCH 0/2] Boottime: measure bootloader and kernel bootup time Jean-Christophe PLAGNIOL-VILLARD
2012-11-15 10:35 ` Lee Jones
2012-11-15 10:57 ` Jean-Christophe PLAGNIOL-VILLARD
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