Wifi wl18xx is not running


#1

Hello,

I am working on a project that uses the WP7607 module with the WL18xx ti chip. I defined GPIO_40 and GPIO_41 in order to activate and deaactivate the wifi and BLE. For the MSM_WIFI_IRQ_GPIO I defined GPIO_38 (SWIMCU_GPIO_TO_SYS(2)) to manage the irq signal. Since I am not using the GPIOexpander neither an i2c hub, I tried to activate the wifi with the following script :
#!/bin/sh

export PATH=$PATH:/usr/bin:/bin:/usr/sbin:/sbin

ti_wifi_start() {
# Add mdev rule for crda
grep crda /etc/mdev.conf > /dev/null
if [ ? -ne 0 ]; then echo "\$COUNTRY=.. root:root 0660 */sbin/crda" >> /etc/mdev.conf fi lsmod | grep wlcore >/dev/null if [ ? -ne 0 ]; then
# Set IOT0_RESET = 1 (WP GPIO2)
[ -d /sys/class/gpio/gpio41 ] || echo 41 >/sys/class/gpio/export
echo out >/sys/class/gpio/gpio41/direction
echo 1 >/sys/class/gpio/gpio41/value
modprobe wlcore || exit 127
modprobe wlcore_sdio || exit 127
modprobe wl18xx || exit 127
fi
sleep 5
ifconfig -a | grep wlan0 >/dev/null
if [ ? -ne 0 ] ; then echo "Failed to start TI wifi"; exit 127 fi ifconfig wlan0 up >/dev/null if [ ? -ne 0 ] ; then
echo “Failed to start TI wifi”; exit 127
fi
}

ti_wifi_stop() {
ifconfig | grep wlan0 >/dev/null
if [ ? -eq 0 ]; then ifconfig wlan0 down fi lsmod | grep wlcore >/dev/null if [ ? -eq 0 ]; then
rmmod wl18xx || exit 127
rmmod wlcore_sdio || exit 127
rmmod wlcore || exit 127

   # Reset IOT0_GPIO4 = 0 (WP GPIO8)
   echo 0 >/sys/class/gpio/gpio41/value
fi

}

case “$1” in
start)
ti_wifi_start
;;
stop)
ti_wifi_stop
;;
restart)
ti_wifi_stop
ti_wifi_start
;;
*)
exit 1
;;
esac
exit 0

However, after running this script, the modules: wl18xx, wlcore_sdio, wlcore mac 80211 and cfg80211 were loaded however the wlan0 interface is not created. Hereaftre are the log when running the scripts :
Jan 6 00:53:47 swi-mdm9x28 user.debug kernel: [ 3225.258026] gpio_sync_ri: RI owner is Modem
Jan 6 00:53:47 swi-mdm9x28 user.debug kernel: [ 3225.258053] gpio_map_name_to_num: find GPIO 204
Jan 6 00:53:47 swi-mdm9x28 user.debug kernel: [ 3225.258063] export_store: Export GPIO: 204
Jan 6 00:53:47 swi-mdm9x28 user.err kernel: [ 3225.258438] i2c-msm-v2 78b8000.i2c: NACK: slave not responding, ensure its powered: msgs(n:1 cur:0 tx) bc(rx:0 tx:18) mode:FIFO slv_addr:0x3a MSTR_STS:0x001363c8 OPER:0x00000090
Jan 6 00:53:47 swi-mdm9x28 user.debug kernel: [ 3225.279907] gpio_sync_ri: RI owner is Modem
Jan 6 00:53:47 swi-mdm9x28 user.debug kernel: [ 3225.279928] gpiod_export: sierra–find GPIO,chipdev = -833663984,chipngpio = 5,chipbase = 200
Jan 6 00:53:47 swi-mdm9x28 user.info kernel: [ 3225.352165] cfg80211: Calling CRDA to update world regulatory domain
Jan 6 00:53:47 swi-mdm9x28 user.info kernel: [ 3225.352316] cfg80211: World regulatory domain updated:
Jan 6 00:53:47 swi-mdm9x28 user.info kernel: [ 3225.352329] cfg80211: DFS Master region: unset
Jan 6 00:53:47 swi-mdm9x28 user.info kernel: [ 3225.352339] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
Jan 6 00:53:47 swi-mdm9x28 user.info kernel: [ 3225.352351] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
Jan 6 00:53:47 swi-mdm9x28 user.info kernel: [ 3225.352362] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
Jan 6 00:53:47 swi-mdm9x28 user.info kernel: [ 3225.352373] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (N/A, 2000 mBm), (N/A)
Jan 6 00:53:47 swi-mdm9x28 user.info kernel: [ 3225.352383] cfg80211: (5170000 KHz - 5250000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A)
Jan 6 00:53:47 swi-mdm9x28 user.info kernel: [ 3225.352394] cfg80211: (5250000 KHz - 5330000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A)
Jan 6 00:53:47 swi-mdm9x28 user.info kernel: [ 3225.352405] cfg80211: (5490000 KHz - 5710000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A)
Jan 6 00:53:47 swi-mdm9x28 user.info kernel: [ 3225.352415] cfg80211: (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A)
Jan 6 00:53:47 swi-mdm9x28 user.info kernel: [ 3225.352426] cfg80211: (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 0 mBm), (N/A)
Jan 6 00:56:00 swi-mdm9x28 user.info Legato: INFO | modemDaemon[687]/modemDaemon T=main | le_mrc.c SignalStrengthIndHandlerFunc() 654 | Signal Strength Ind Handler called with RAT.2 and ss.-105
Jan 6 00:58:39 swi-mdm9x28 user.info Legato: INFO | modemDaemon[687]/modemDaemon T=main | le_mrc.c SignalStrengthIndHandlerFunc() 654 | Signal Strength Ind Handler called with RAT.2 and ss.-104
Comparing this log to that that I obtained from the mangoh board it is clear that it misses the next lines related the the mmc interface :
Jan 6 00:39:06 swi-mdm9x28 user.warn kernel: [ 115.472161] sdhci_msm 7864900.sdhci: card claims to support voltages below defined range
Jan 6 00:39:06 swi-mdm9x28 user.warn kernel: [ 115.524852] mmc0: queuing unknown CIS tuple 0x91 (3 bytes)
Jan 6 00:39:06 swi-mdm9x28 user.info kernel: [ 115.527371] mmc0: new high speed SDIO card at address 0001
Jan 6 00:39:07 swi-mdm9x28 user.info kernel: [ 116.075196] wlcore: wl18xx HW: 183x or 180x, PG 2.2 (ROM 0x11)
Jan 6 00:39:07 swi-mdm9x28 user.info kernel: [ 116.157324] wlcore: loaded
Jan 6 00:39:12 swi-mdm9x28 user.info kernel: [ 120.994600] wlcore: PHY firmware version: Rev 8.2.0.0.212
Jan 6 00:39:12 swi-mdm9x28 user.info kernel: [ 121.056066] wlcore: firmware booted (Rev 8.9.0.0.17)
Jan 6 00:39:12 swi-mdm9x28 user.info

Can you help me with this issue please.

Best regards,


#2

The previous behavior was in fact related to a hardware issue. Now, it works very well.