From: Guennadi Liakhovetski <lg@denx.de>
Date: Thu, 28 Aug 2008 10:25:11 +0000 (+0200)
Subject: i.MX31: document timer precision option
X-Git-Tag: v2008.10-rc2~10^2~11
X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=eb16135df20535b0d19969f50fb5bd17f95e9c25;p=u-boot

i.MX31: document timer precision option

Signed-off-by: Guennadi Liakhovetski <lg@denx.de>
---

diff --git a/README.imx31 b/README.imx31
new file mode 100644
index 0000000000..f545f01ba8
--- /dev/null
+++ b/README.imx31
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+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.