[U-Boot] [PATCH] README: document the requirements for CONFIG_SYS_HZ
Stephen Warren
swarren at wwwdotorg.org
Fri Mar 22 04:41:32 CET 2013
CONFIG_SYS_HZ must be 1000, and get_timer() must therefore return mS.
Document this.
Signed-off-by: Stephen Warren <swarren at wwwdotorg.org>
---
README | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/README b/README
index 7f2506a..1871ada 100644
--- a/README
+++ b/README
@@ -495,6 +495,12 @@ The following options need to be configured:
exists, unlike the similar options in the Linux kernel. Do not
set these options unless they apply!
+- CPU timer options:
+ CONFIG_SYS_HZ
+
+ The frequency of the timer returned by get_timer(). This value
+ MUST be 1000.
+
- Linux Kernel Interface:
CONFIG_CLOCKS_IN_MHZ
--
1.7.10.4
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