diff options
| -rwxr-xr-x | load_nandsim.sh | 50 |
1 files changed, 25 insertions, 25 deletions
diff --git a/load_nandsim.sh b/load_nandsim.sh index 18f788e..de1ac74 100755 --- a/load_nandsim.sh +++ b/load_nandsim.sh @@ -12,7 +12,7 @@ if grep -q "NAND simulator" /proc/mtd; then exit 1 fi -if (( $# < 1 )); then +if [ "$#" -lt "1" ]; then echo "Load NAND simulator to simulate flash of a specified size." echo "" echo "Usage: ./load_nandsim.sh <size in MiB> <eraseblock size in KiB>" @@ -54,23 +54,23 @@ if (( $# < 1 )); then exit 1 fi -SZ=$1 -EBSZ=$2 -PGSZ=$3 -if [[ $# == '1' ]]; then - EBSZ=16 - PGSZ=512 -elif [[ $# == '2' ]]; then - PGSZ=512 +SZ="$1" +EBSZ="$2" +PGSZ="$3" +if [ "$#" = "1" ]; then + EBSZ="16" + PGSZ="512" +elif [ "$#" = "2" ]; then + PGSZ="512" fi -if (( $PGSZ == 512 && $EBSZ != 16 )); then +if [ "$PGSZ" -eq 512 ] && [ "$EBSZ" -ne "16" ]; then echo "Error: only 16KiB eraseblocks are possible in case of 512 bytes page" exit 1 fi -if (( $PGSZ == 512 )); then - case $SZ in +if [ "$PGSZ" -eq "512" ]; then + case "$SZ" in 16) modprobe nandsim first_id_byte=0x20 second_id_byte=0x33 ;; 32) modprobe nandsim first_id_byte=0x20 second_id_byte=0x35 ;; 64) modprobe nandsim first_id_byte=0x20 second_id_byte=0x36 ;; @@ -79,22 +79,22 @@ if (( $PGSZ == 512 )); then *) echo "Flash size ${SZ}MiB is not supported, try 16, 32, 64 or 256" exit 1 ;; esac -elif (( $PGSZ == 2048 )); then - case $EBSZ in - 64) FOURTH=0x05 ;; - 128) FOURTH=0x15 ;; - 256) FOURTH=0x25 ;; - 512) FOURTH=0x35 ;; +elif [ "$PGSZ" -eq "2048" ]; then + case "$EBSZ" in + 64) FOURTH="0x05" ;; + 128) FOURTH="0x15" ;; + 256) FOURTH="0x25" ;; + 512) FOURTH="0x35" ;; *) echo "Eraseblock ${EBSZ}KiB is not supported" exit 1 esac - case $SZ in - 64) modprobe nandsim first_id_byte=0x20 second_id_byte=0xa2 third_id_byte=0x00 fourth_id_byte=$FOURTH ;; - 128) modprobe nandsim first_id_byte=0xec second_id_byte=0xa1 third_id_byte=0x00 fourth_id_byte=$FOURTH ;; - 256) modprobe nandsim first_id_byte=0x20 second_id_byte=0xaa third_id_byte=0x00 fourth_id_byte=$FOURTH ;; - 512) modprobe nandsim first_id_byte=0x20 second_id_byte=0xac third_id_byte=0x00 fourth_id_byte=$FOURTH ;; - 1024) modprobe nandsim first_id_byte=0xec second_id_byte=0xd3 third_id_byte=0x51 fourth_id_byte=$FOURTH ;; + case "$SZ" in + 64) modprobe nandsim first_id_byte=0x20 second_id_byte=0xa2 third_id_byte=0x00 fourth_id_byte="$FOURTH" ;; + 128) modprobe nandsim first_id_byte=0xec second_id_byte=0xa1 third_id_byte=0x00 fourth_id_byte="$FOURTH" ;; + 256) modprobe nandsim first_id_byte=0x20 second_id_byte=0xaa third_id_byte=0x00 fourth_id_byte="$FOURTH" ;; + 512) modprobe nandsim first_id_byte=0x20 second_id_byte=0xac third_id_byte=0x00 fourth_id_byte="$FOURTH" ;; + 1024) modprobe nandsim first_id_byte=0xec second_id_byte=0xd3 third_id_byte=0x51 fourth_id_byte="$FOURTH" ;; *) echo "Unable to emulate ${SZ}MiB flash with ${EBSZ}KiB eraseblock" exit 1 esac @@ -103,7 +103,7 @@ else exit 1 fi -if (( $? != 0 )); then +if [ "$?" != "0" ]; then echo "Error: cannot load nandsim" exit 1 fi |