CONFIG_SYS_HZ must be 1000, and get_timer() must therefore return ms. Document this.

README text provided by Tom Rini.

Signed-off-by: Stephen Warren swarren@wwwdotorg.org --- v2: Reworded the README text. --- README | 7 +++++++ 1 file changed, 7 insertions(+)

diff --git a/README b/README index 7f2506a..efb8cc6 100644 --- a/README +++ b/README @@ -495,6 +495,13 @@ 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(). + get_timer() must operate in milliseconds and this CONFIG + option must be set to 1000. + - Linux Kernel Interface: CONFIG_CLOCKS_IN_MHZ