WL1271 SDIO driver performance and setting - WiLink 6.x

Environment :

Host : DevKit8000 ( clone of beagleboard)
Kernel : 2.6.29-omap1
WiFi modile : Muruta WL1271 module (WLAN & BT & FM)
SDIO Freq. : 7.5Mhz 1bit ( cable issue) not optimize yet.

driver : WiLink 6.x

Modification : none
root@beagleboard:/modules/objs# uname -a
Linux devkit8000 2.6.29-omap1 #68 Wed Aug 26 09:22:21 CST 2009 armv7l unknown

Performance :
root@devkit8000:/wl1271# ping 192.168.168.254
PING 192.168.168.254 (192.168.168.254): 56 data bytes
64 bytes from 192.168.168.254: seq=0 ttl=64 time=83.008 ms
64 bytes from 192.168.168.254: seq=1 ttl=64 time=106.567 ms
64 bytes from 192.168.168.254: seq=2 ttl=64 time=78.522 ms
64 bytes from 192.168.168.254: seq=3 ttl=64 time=102.111 ms
64 bytes from 192.168.168.254: seq=4 ttl=64 time=75.043 ms
64 bytes from 192.168.168.254: seq=5 ttl=64 time=98.297 ms
64 bytes from 192.168.168.254: seq=6 ttl=64 time=70.679 ms
64 bytes from 192.168.168.254: seq=7 ttl=64 time=94.360 ms
64 bytes from 192.168.168.254: seq=8 ttl=64 time=67.261 ms
64 bytes from 192.168.168.254: seq=9 ttl=64 time=90.973 ms
64 bytes from 192.168.168.254: seq=10 ttl=64 time=63.080 ms
Power consumption : below 10mA.
claud@claud-desktop:~$ iperf -c 192.168.168.83 -i 1
------------------------------------------------------------
Client connecting to 192.168.168.83, TCP port 5001
TCP window size: 16.0 KByte (default)
------------------------------------------------------------
[ 3] local 192.168.168.25 port 46919 connected with 192.168.168.83 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0- 1.0 sec 424 KBytes 3.47 Mbits/sec
[ 3] 1.0- 2.0 sec 616 KBytes 5.05 Mbits/sec
[ 3] 2.0- 3.0 sec 640 KBytes 5.24 Mbits/sec
[ 3] 3.0- 4.0 sec 632 KBytes 5.18 Mbits/sec
[ 3] 4.0- 5.0 sec 624 KBytes 5.11 Mbits/sec
[ 3] 5.0- 6.0 sec 584 KBytes 4.78 Mbits/sec
[ 3] 6.0- 7.0 sec 704 KBytes 5.77 Mbits/sec
[ 3] 7.0- 8.0 sec 600 KBytes 4.92 Mbits/sec
[ 3] 8.0- 9.0 sec 592 KBytes 4.85 Mbits/sec
[ 3] 9.0-10.0 sec 648 KBytes 5.31 Mbits/sec
[ 3] 0.0-10.1 sec 5.93 MBytes 4.93 Mbits/sec


ftp performance : ~600KB/s

Power consumption : 100~110mA.