2139190_en-US

Yes

iMX8MPlus + 88W8987 + PDn pin

I am trying to reboot the 8987 module in android 10 using the PDn pin on the iMX8MPlus

# unload modules

$ rmmod -f moal

$ rmmod -f mlan

[ 987.206583] wlan: Unloading MWLAN driver

[ 987.211780] wlan: Driver unloaded

#unbind MMC controller

$ echo "30b50000.mmc" > /sys/bus/platform/drivers/sdhci-esdhc-imx/unbind

[ 988.124586] mmc1: card 0001 removed

# set PDn to LOW

$ echo "30b50000.mmc" > /sys/bus/platform/drivers/sdhci-esdhc-imx/bind

[ 998.119429] mmc1: SDHCI controller on 30b50000.mmc [30b50000.mmc] using ADMA

# set PDn to HIGH

[ 1010.224255] mmc1: new ultra high speed SDR104 SDIO card at address 0001

# Load modules

$ insmod /vendor/lib/modules/mlan.ko

$ insmod /vendor/lib/modules/moal.ko mod_para=wifi_mod_para.conf

[ 1027.098443] wlan: Loading MWLAN driver

[ 1027.103256] wlan: Register to Bus Driver...

[ 1027.120295] vendor=0x02DF device=0x9149 class=0 function=1

[ 1027.126578] Attach moal handle ops, card interface type: 0x105

[ 1027.133282] SD8987: init module param from usr cfg

[ 1027.138829] card_type: SD8987, config block: 0

[ 1027.143989] cfg80211_wext=0xf

[ 1027.147669] sta_name=wlan

[ 1027.151001] uap_name=wlan

[ 1027.154341] wfd_name=p2p

[ 1027.157589] max_vir_bss=1

[ 1027.160926] cal_data_cfg=none

[ 1027.164611] ps_mode = 2

[ 1027.167844] auto_ds = 2

[ 1027.171028] host_mlme=enable

[ 1027.174629] fw_name=sdiouart8987_combo_v0.bin

[ 1027.179833] SDIO: max_segs=128 max_seg_size=65472

[ 1027.185353] rx_work=1 cpu_num=4

[ 1027.189296] Attach mlan adapter operations.card_type is 0x105.

[ 1027.204869] wlan: Enable TX SG mode

[ 1027.209100] wlan: Enable RX SG mode

[ 1027.216328] Request firmware: sdiouart8987_combo_v0.bin

[ 1028.066187] Wlan: FW download over, firmwarelen=603832 downloaded 603832

[ 1030.080214] Fail to poll firmware status: firmwarestat=0xf005

[ 1030.086693] FW failed to be active in time!

[ 1030.091600] wlan_dnld_fw fail ret=0xffffffff

[ 1030.096656] WLAN: Fail download FW with nowwait: 0

[ 1030.102459] SDIO Func0 (0x0-0x9): 43 03 02 02 03 00 00 02 03 00

[ 1030.109401] SDIO Func1 (0x10-0x17): 00 00 00 00 00 00 00 00

[ 1030.116157] SDIO Func1: (0x8) 00 (0x58) 00 (0x5c) 0d (0x5d) 00 (0x60) 01 (0x61) 00 (0x62) 00 (0x64) 10 (0x65) 01 (0x66) 00 (0x68) 00 (0x69) 00 (0x6a) 00

[ 1030.130949] SDIO Func1 (0xe8-0xf2): 05 f0 00 00 00 00 00 00 24 14 70

[ 1030.241168] SDIO Func1 (0xe8-0xf2): 05 f0 00 00 00 00 00 00 24 14 70

[ 1030.248445] woal_request_fw failed

[ 1030.252557] Firmware Init Failed

[ 1030.260510] Free module params

[ 1030.264292] woal_add_card failed

[ 1030.268383] wlan_sdio: probe of mmc1:0001:1 failed with error -1

[ 1030.275567] wlan: Register to Bus Driver Done

[ 1030.280673] wlan: Driver loaded successfully

# cat /sys/kernel/debug/mmc1/ios

clock: 208000000 Hz

vdd: 21 (3.3 ~ 3.4 V)

bus mode: 2 (push-pull)

chip select: 0 (don't care)

power mode: 2 (on)

bus width: 2 (4 bits)

timing spec: 6 (sd uhs SDR104)

signal voltage: 1 (1.80 V)

driver type: 0 (driver type B)

wifi 8987 + imx8m plus

&usdhc2 {

assigned-clocks = <&clk IMX8MP_CLK_USDHC2>;

assigned-clock-rates = <400000000>;

pinctrl-names = "default", "state_100mhz", "state_200mhz";

pinctrl-0 = <&pinctrl_usdhc2>;

pinctrl-1 = <&pinctrl_usdhc2_100mhz>;

pinctrl-2 = <&pinctrl_usdhc2_200mhz>;

bus-width = <4>;

pm-ignore-notify;

keep-power-in-suspend;

fsl,sdio-async-interrupt-enabled;

status = "okay";

};

Re: iMX8MPlus + 88W8987 + PDn pin

Hello,

The following hardware conditions will cause the error code in your log, please take a look in each point.

1. SDIO communication is abnormal

2. The 32.768K clock of the Wi-Fi chip is not used

3. The power supply current of the Wi-Fi chip is not enough (when downloading FW, the peak current requirement is relatively large, and the total power supply current of 3.3V must be greater than 1.5A).

Best regards.