1 files changed, 29 insertions, 0 deletions

diff --git a/recipes-bsp/imx-test/imx-test/clocks.sh b/recipes-bsp/imx-test/imx-test/clocks.sh
new file mode 100755
index 0000000..2121bef
--- /dev/null
+++ b/recipes-bsp/imx-test/imx-test/clocks.sh
@@ -0,0 +1,29 @@
+#!/bin/bash
+
+# This script is taken directly from the section 5.10 of the Freescale Application Note
+# AN4509 and it simple prints the CPU clocks in a nice format
+
+saved_path=$PWD
+if ! mount|grep -sq '/sys/kernel/debug'; then
+  mount -t debugfs none /sys/kernel/debug
+fi
+
+printf "%-24s %-20s %3s %9s\n" "clock" "parent" "use" "flags" "rate"
+
+for foo in $(find /sys/kernel/debug/clock -type d); do
+  if [ "$foo" = '/sys/kernel/debug/clock' ]; then
+    continue
+  fi
+  cd $foo
+  ec="$(cat usecount)"
+  rate="$(cat rate)"
+  flag="$(cat flags)"
+  clk="$(basename $foo)"
+  cd ..
+  parent="$(basename $PWD)"
+  if [ "$parent" = 'clock' ]; then
+    parent=" ---"
+  fi
+  printf "%-24s %-24s %2d %2d %10d\n" "$clk" "$parent" "$ec" "$flag" "$rate"
+  cd $saved_path
+done