lkconfig: add MMC CRC setting and superuser check

lk.ramdisk/sbin/lk-post-boot.sh

@@ -43,6 +43,12 @@ SFILE="/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq"
 CFILE="/data/data/leankernel/gpu_governor"
 SFILE="/sys/devices/fdb00000.qcom,kgsl-3d0/devfreq/fdb00000.qcom,kgsl-3d0/governor"
 [ -f $CFILE ] && echo `cat $CFILE` > $SFILE
+#
+# MMC CRC
+#
+CFILE="/data/data/leankernel/use_spi_crc"
+SFILE="/sys/module/mmc_core/parameters/use_spi_crc"
+[ -f $CFILE ] && echo `cat $CFILE` > $SFILE
 
 # daemonsu support - probably not needed
 if [ -f "/system/xbin/daemonsu" ]; then

lk.ramdisk/sbin/lkconfig

@@ -1,5 +1,8 @@
 #!/system/bin/sh
 
+detectsu=`ls /data/data`
+[ -z "$detectsu" ] && echo "Must be superuser!" && exit
+
 while true; do
 
 echo
@@ -11,7 +14,9 @@ echo "2) panel color"
 echo "3) set screen_off_maxfreq"
 echo "4) set cpu max frequency"
 echo "5) gpu governor"
-echo "6) restart mpdecision (to fix stuck cores)"
+echo "6) MMC CRC"
+echo
+echo "9) restart mpdecision (to fix stuck cores)"
 echo
 echo -n "please enter a number (or press enter to exit): "
 
@@ -32,6 +37,8 @@ case $option in
 	cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq
 	echo -n "5) gpu governor: "
 	cat /sys/devices/fdb00000.qcom,kgsl-3d0/devfreq/fdb00000.qcom,kgsl-3d0/governor
+	echo -n "6) MMC CRC: "
+	cat /sys/module/mmc_core/parameters/use_spi_crc
 	echo
 	;;
 1) 
@@ -88,6 +95,13 @@ case $option in
 	echo "Done! (also will persist at boot)"
 	;;
 6)
+	echo -n "Enter Y to enable, N to disable MMC CRC: "
+	read value
+	echo $value > /data/data/leankernel/use_spi_crc
+	echo $value > /sys/module/mmc_core/parameters/use_spi_crc
+	echo "Done! (also will persist at boot)"
+	;;
+9)
 	stop mpdecision
 	sleep 2
 	start mpdecision