iMX6 SDIO WiFi can't detected

[yixuan_guo]

Hi all

we have a problem when using SDIO WIFI(Marvell 88W8897) on a IMX6q board (refer to sabresd) with Android 4.4.2_1.0.0.

The problem we are having is that the OS does not seem to detect when WIFI Module is inserted. I would expect at least a line or two in dmesg, but there is nothing.

I find this link:Re: iMX6 WiFi on SDIO but the problem remains.

If insert a  SD card,  will be able to detected.

Please give me some advice, Thanks!

[igorpadykov]

Hi yasin

for detection one needs to install 88W8897 driver and update firmware, like

described on below links

How to setup Marvell 88w8686 SDIO wifi - IGEP Community Wiki

Linux Kernel Driver DataBase: CONFIG_MWIFIEX_SDIO: Marvell WiFi-Ex Driver for SD8787/SD8797

How to enable Wi-fi AR6103 in Sabre-AI

Best regards

igor

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[yixuan_guo]

Hi igorpadykov

When WIFI Module is inserted,I Can't found "mmc1: new SDIO card at address 0001"

[karltsou]

Hi

Please check your esdhc platform_data (board init) that use with wifi module (if it always there never remove)

static const struct esdhc_platform_data mx6_evk_sd3_data __initconst = {
	.always_present  = 1,
	.cd_gpio = -1,
	.wp_gpio = -1,
	.support_8bit  = 0,
	.keep_power_at_suspend = 1,
	.delay_line = 0,
	.support_18v = 0,
	.platform_pad_change = plt_sd_pad_change,
	.cd_type = ESDHC_CD_CONTROLLER,
	.keep_clock = 1,
	};

[igorpadykov]

you should insert it before powering board.