From mboxrd@z Thu Jan 1 00:00:00 1970 From: Shinya Kuribayashi Date: Thu, 18 Sep 2008 18:52:39 +0900 Subject: [U-Boot] [PATCH] i.MX31: document timer precision option In-Reply-To: References: Message-ID: <48D224E7.5020809@necel.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Hi Guennadi, Guennadi Liakhovetski wrote: > Signed-off-by: Guennadi Liakhovetski > --- > > diff -u /dev/null doc/README.imx31 > --- /dev/null 2008-08-28 10:21:05.503011301 +0200 > +++ doc/README.imx31 2008-08-28 12:15:21.000000000 +0200 > @@ -0,0 +1,13 @@ > +i.MX31 specific Configuration Options: > +-------------------------------------- > + > +- Timer precision: > + CONFIG_MX31_TIMER_HIGH_PRECISION > + > + Enable higher precision timer. The low-precision timer > + (default) provides approximately 4% error, whereas the > + high-precision timer is about 0.4% accurate. The extra > + accuracy is achieved at the cost of higher computational > + overhead, which, in places where time is measured, should > + not be critical, so, it should be safe to enable this > + option. I'm not familiar with the maintainance policy of README and doc/*, but is there any reasone this README.imx31 is sitting on the top of tree? Should be marged into $(TOPDIR)/README, or moved to doc/ directory? Noticed a few minutes ago, so just let you know... -- Shinya Kuribayashi NEC Electronics