Commits

Tony Lin committed c6d3e104076
ENGR00137979-1 add performance monitor driver add performance monitor driver. sample: cd /sys/devices/platform/mxs-perfmon.0/ 'echo 1 > MIDn-xxx' to enable monitor this channel n: channel number; xxx: name of channel (PXP, LCD...) you can enable the multiple channels you want to monitor respectively using this command. use following command to check the channel is enabled 'cat MIDn-xxx' 1: enable; 0: disable 'echo read > Monitor' to monitor all read activities 'echo start > Monitor' to start monitoring 'echo fetch > Monitor' to get a snapshot of monitor statistics. 'cat xxx_Count' to show the statistics. xxx: name of statistics, (Data, Transfer, Latency...) 'echo clear > Monitor' to clear snapshot of monitor statistics. 'echo stop > Monitor' to stop monitoring Signed-off-by: Tony Lin <tony.lin@freescale.com>