Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...

[linux-2.6-omap-h63xx.git] / Documentation / cpu-freq / user-guide.txt

diff --git a/Documentation/cpu-freq/user-guide.txt b/Documentation/cpu-freq/user-guide.txt
index af3b925ece08945e6ca5ed37147022cfb45c0989..e3443ddcfb890028cc8f1a9576a029c35d200154 100644 (file)
--- a/Documentation/cpu-freq/user-guide.txt
+++ b/Documentation/cpu-freq/user-guide.txt
@@ -23,6 +23,7 @@ Contents:
 1.3 sparc64
 1.4 ppc
 1.5 SuperH
+1.6 Blackfin
 
 2. "Policy" / "Governor"?
 2.1 Policy
@@ -92,10 +93,19 @@ Several "PowerBook" and "iBook2" notebooks are supported.
 1.5 SuperH
 ----------
 
-The following SuperH processors are supported by cpufreq:
+All SuperH processors supporting rate rounding through the clock
+framework are supported by cpufreq.
 
-SH-3
-SH-4
+1.6 Blackfin
+------------
+
+The following Blackfin processors are supported by cpufreq:
+
+BF522, BF523, BF524, BF525, BF526, BF527, Rev 0.1 or higher
+BF531, BF532, BF533, Rev 0.3 or higher
+BF534, BF536, BF537, Rev 0.2 or higher
+BF561, Rev 0.3 or higher
+BF542, BF544, BF547, BF548, BF549, Rev 0.1 or higher
 
 
 2. "Policy" / "Governor" ?
@@ -154,6 +164,11 @@ scaling_governor,          and by "echoing" the name of another
                                that some governors won't load - they only
                                work on some specific architectures or
                                processors.
+
+cpuinfo_cur_freq :             Current speed of the CPU, in KHz.
+
+scaling_available_frequencies : List of available frequencies, in KHz.
+
 scaling_min_freq and
 scaling_max_freq               show the current "policy limits" (in
                                kHz). By echoing new values into these
@@ -162,6 +177,15 @@ scaling_max_freq           show the current "policy limits" (in
                                first set scaling_max_freq, then
                                scaling_min_freq.
 
+affected_cpus :                        List of CPUs that require software coordination
+                               of frequency.
+
+related_cpus :                 List of CPUs that need some sort of frequency
+                               coordination, whether software or hardware.
+
+scaling_driver :               Hardware driver for cpufreq.
+
+scaling_cur_freq :             Current frequency of the CPU, in KHz.
 
 If you have selected the "userspace" governor which allows you to
 set the CPU operating frequency to a specific value, you can read out