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| author | Stephen Warren <swarren@wwwdotorg.org> | 2013-03-27 17:06:41 +0000 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2013-04-02 16:23:34 -0400 |
| commit | 795659dc1ce275fcc39d6501affa0c03fd663038 (patch) | |
| tree | 63d9c4c16a314239d8d6ab359854d37bc867da93 /README | |
| parent | b343bbb528249391335cf35ca10c8822310cd815 (diff) | |
| download | u-boot-imx-795659dc1ce275fcc39d6501affa0c03fd663038.zip u-boot-imx-795659dc1ce275fcc39d6501affa0c03fd663038.tar.gz u-boot-imx-795659dc1ce275fcc39d6501affa0c03fd663038.tar.bz2 | |
README: document the requirements for CONFIG_SYS_HZ
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>
Diffstat (limited to 'README')
| -rw-r--r-- | README | 7 |
1 files changed, 7 insertions, 0 deletions
@@ -496,6 +496,13 @@ 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 |