diff options
Diffstat (limited to 'recipes-bsp/imx-test/imx-test/clocks.sh')
-rwxr-xr-x | recipes-bsp/imx-test/imx-test/clocks.sh | 29 |
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 00000000..2121bef6 --- /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 |