i.MX6Q SABRE can't load AP6335 wifi driver on Android 5.1

[chenli_2016]

Hi All

our custom product is refer to i.MX6Q SABRE and the modifications are the wifi module, ddr, emmc, ours is AMPAK's AP6335 ,2GB ddr, 32GB emmc.

we are porting this module to Android 5.1 which use 3.14.52 kernel.

According to the  the wifi user  guide :

Power control and SDIO card detection

Fill WL_REG_ON GPIO pin number and implement card detection function to dhd_gpio.c as

following:

void bcm_wlan_power_on(int flag)

{

if (flag == 1) {

printk("======== PULL WL_REG_ON HIGH! ========\n");

gpio_set_value(WIFI_WL_REG_ON, 1);

mdelay(100);

printk("======== Card detection to detect SDIO card ========\n");

wifi_card_detect();

} else {

printk("======== PULL WL_REG_ON HIGH! (flag = %d) ========\n", flag);

gpio_set_value(WIFI_WL_REG_ON, 1);

}

}

when i use insmod command to load ther driver , I got the following information :

insmod system/lib/modules/cfg80211.ko

cfg80211: Calling CRDA to update world regulatory domain

insmod system/lib/modules/bcmdhd.ko                                            <

dhd_module_init: in

======== bcm_wlan_set_plat_data ========

GPIO(WL_HOST_WAKE) = GPIO_4_25

host_oob_irq: 281

host_oob_irq_flags=4

dhd_wifi_platform_load: Enter

Power-up adapter 'DHD generic adapter'

wifi_platform_set_power = 1

======== PULL WL_REG_ON HIGH! ========

======== Card detection to detect SDIO card ========

wifi_platform_bus_enumerate device present 1

failed to power up DHD generic adapter, 3 retry left

wifi_platform_set_power = 0

======== PULL WL_REG_ON LOW! ========

wifi_platform_bus_enumerate device present 0

wifi_platform_set_power = 1

======== PULL WL_REG_ON HIGH! ========

======== Card detection to detect SDIO card ========

wifi_platform_bus_enumerate device present 1

failed to power up DHD generic adapter, 2 retry left

wifi_platform_set_power = 0

======== PULL WL_REG_ON LOW! ========

wifi_platform_bus_enumerate device present 0

wifi_platform_set_power = 1

======== PULL WL_REG_ON HIGH! ========

... ...

======== PULL WL_REG_ON LOW! ========

wifi_platform_bus_enumerate device present 0

failed to power up DHD generic adapter, max retry reached**

unregister wifi platform drivers

wifi_platform_bus_enumerate device present 0

dhd_module_init: Failed to load the driver, try cnt 0

dhd_module_init: Failed to load driver max retry reached**

dhd_module_init: Exit err=-19

I wonder if the WiFi driver I used is too old to run properly on 3.14.52 kernel , I will attach it below ,about this driver ,the file I modified is dhd_gpio.c.

Best regards!

li chen.

Original Attachment has been moved to: ap6335_driver.tar.gz

[igorpadykov · Accepted solution]

Hi li

please check link below with similar issue

Connecting QWKS-SCMIMX6 board to a Murata 1DX EVK

also one can try to request updated driver from vendor support:

http://wireless.murata.com/eng/products/rf-modules-1/wi-fi-bluetooth-for-freescale-i-mx.html

Best regards

igor

-----------------------------------------------------------------------------------------------------------------------

Note: If this post answers your question, please click the Correct Answer button. Thank you!

-----------------------------------------------------------------------------------------------------------------------

[chenli_2016]

Hi igor

This problem have been solved.

The main reason behind this issue was the CD signal.our pcb doesn't dedicated CD(card detect) pin, I pick a gpio which input low by default as CD pin in dts file, after this ,that card detect function  worked .

Thanks igor~

Thank you again for you time on this issue.

Best regards

li chen

[kak-dela007]

Hello!
Tell me please, how did you solve the problem? Is there a driver for the AP6335 module in android (Nibiru)? I do not know how to program, are there ready-made distributions to unzip them or add them to a folder on the device to make it work?

P.S .: before that there was an AP6212 module in my device, but I replaced it, because I hoped that I would get WiFi 5G. But now my device does not see the WiFi / BT network at all

[madhuwesly]

Hi li chen,

I am working with the same AMPAK module AP6335 with imx6q. I couldn't get the design guide for the AP6335 module. Could you provide me the reference guide or schematics for interfacing AP6335 with imxq SoC ? 

Thanks in advance

Best regards

madhu