wlcore: ERROR ELP wakeup timeout! with WL18xx

samantula bhaskarrao

Intellectual 785 points

Other Parts Discussed in Thread: WL1835, WL1271

Hai all,

I am using WL1835 Module, and integrating with TI-AM335x customized board.

I Compiled the driver with Linux 3.12.30.

When i load the drivers and make interface up once in my board. the firmware is loading.

I am getting Wlan0 interface also, but unable to communicate with Wlan0.

I downloaded firmware from https://github.com/TI-OpenLink/firmwares/tree/master/ti-connectivity .

if i am doing "ifconfig wlan0 down" or "iw wlan0 scan", I am getting the error wlcore: ERROR ELP wakeup timeout!

Here is the output log

*****************************************************************************

root@am335x-evm:~# modprobe wlcore
[ 20.899821] cfg80211: Calling CRDA to update world regulatory domain

root@am335x-evm:~# modprobe wlcore_sdio

root@am335x-evm:~# modprobe wl18xx

root@am335x-evm:~#

[ 30.130664] wlcore: wl18xx HW: 183x or 180x, PG 2.2 (ROM 0x11)
[ 30.170199] wlcore: loaded
[ 30.173206] wlcore: driver version: v3.12.30-phy3-1-g8ab5ace-dirty
[ 30.179954] wlcore: compilation time: Wed Aug 5 17:38:10 2015

root@am335x-evm:~# ifconfig wlan0 up
[ 36.672224] wlcore: PHY firmware version: Rev 8.2.0.0.195
[ 36.783978] wlcore: firmware booted (Rev 8.8.0.0.13)
[ 36.804434] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready

root@am335x-evm:~# cat /proc/interrupts | grep wl
175: 0 GPIO 31 wl18xx

root@am335x-evm:~# ifconfig wlan0 down
[ 62.379413] wlcore: ERROR ELP wakeup timeout!
[ 62.384100] ------------[ cut here ]------------
[ 62.389190] WARNING: CPU: 0 PID: 6 at drivers/net/wireless/ti/wlcore/main.c:802 wl12xx_queue_recovery_work+0x68/0x74 [wlcore]()
[ 62.401489] Modules linked in: wl18xx wlcore_sdio wlcore mac80211 cfg80211 ipv6
[ 62.409439] CPU: 0 PID: 6 Comm: kworker/u2:0 Not tainted 3.12.30-00001-g8ab5ace-dirty #5
[ 62.418209] Workqueue: phy0 ieee80211_reconfig_filter [mac80211]
[ 62.424663] Backtrace:
[ 62.427322] [<c00184f8>] (dump_backtrace+0x0/0x10c) from [<c0018694>] (show_stack+0x18/0x1c)
[ 62.436335] r6:bf0e996c r5:00000009 r4:00000000 r3:00000000
[ 62.442476] [<c001867c>] (show_stack+0x0/0x1c) from [<c05fafb4>] (dump_stack+0x80/0x9c)
[ 62.451062] [<c05faf34>] (dump_stack+0x0/0x9c) from [<c004af34>] (warn_slowpath_common+0x70/0x94)
[ 62.460531] r4:00000000 r3:00000000
[ 62.464392] [<c004aec4>] (warn_slowpath_common+0x0/0x94) from [<c004af7c>] (warn_slowpath_null+0x24/0x2c)
[ 62.474597] r8:cdee0d00 r7:ffffa233 r6:c08720c0 r5:cdee0d30 r4:cdee0ce0
[ 62.481931] [<c004af58>] (warn_slowpath_null+0x0/0x2c) from [<bf0e996c>] (wl12xx_queue_recovery_work+0x68/0x74 [wlcore])
[ 62.493699] [<bf0e9904>] (wl12xx_queue_recovery_work+0x0/0x74 [wlcore]) from [<bf0f4380>] (wl1271_ps_elp_wakeup+0x1e0/0x204 [wlcore])
[ 62.506490] r4:cdee0ce0 r3:00000000
[ 62.510517] [<bf0f41a0>] (wl1271_ps_elp_wakeup+0x0/0x204 [wlcore]) from [<bf0e55b0>] (wl1271_op_configure_filter+0x58/0x12c [wlcore])
[ 62.523439] [<bf0e5558>] (wl1271_op_configure_filter+0x0/0x12c [wlcore]) from [<bf092230>] (ieee80211_configure_filter+0x154/0x1b4 [mac80211])
[ 62.537192] [<bf0920dc>] (ieee80211_configure_filter+0x0/0x1b4 [mac80211]) from [<bf0922a4>] (ieee80211_reconfig_filter+0x14/0x18 [mac80211])
[ 62.550720] r8:00000000 r7:cd87e400 r6:cd81f000 r5:cdee045c r4:cd8719c0
[ 62.558014] [<bf092290>] (ieee80211_reconfig_filter+0x0/0x18 [mac80211]) from [<c0060be8>] (process_one_work+0x11c/0x37c)
[ 62.569729] [<c0060acc>] (process_one_work+0x0/0x37c) from [<c0060fc0>] (worker_thread+0x13c/0x3c0)
[ 62.579554] [<c0060e84>] (worker_thread+0x0/0x3c0) from [<c006775c>] (kthread+0xac/0xb8)
[ 62.588196] [<c00676b0>] (kthread+0x0/0xb8) from [<c0014958>] (ret_from_fork+0x14/0x3c)
[ 62.596757] r7:00000000 r6:00000000 r5:c00676b0 r4:cd881d20
[ 62.602877] ---[ end trace 77d2d02c3584e32f ]---
[ 62.609032] wlcore: down
[ 62.612119] wlcore: Hardware recovery in progress. FW ver: Rev 8.8.0.0.13
[ 62.619463] ------------[ cut here ]------------
[ 62.624518] WARNING: CPU: 0 PID: 12 at drivers/net/wireless/ti/wlcore/io.h:65 wlcore_set_partition+0xa0/0x444 [wlcore]()
[ 62.636126] Modules linked in: wl18xx wlcore_sdio wlcore mac80211 cfg80211 ipv6
[ 62.644070] CPU: 0 PID: 12 Comm: kworker/u2:1 Tainted: G W 3.12.30-00001-g8ab5ace-dirty #5
[ 62.653900] Workqueue: phy0 wl1271_recovery_work [wlcore]
[ 62.659706] Backtrace:
[ 62.662360] [<c00184f8>] (dump_backtrace+0x0/0x10c) from [<c0018694>] (show_stack+0x18/0x1c)
[ 62.671381] r6:bf0f03d4 r5:00000009 r4:00000000 r3:00000000
[ 62.677479] [<c001867c>] (show_stack+0x0/0x1c) from [<c05fafb4>] (dump_stack+0x80/0x9c)
[ 62.686071] [<c05faf34>] (dump_stack+0x0/0x9c) from [<c004af34>] (warn_slowpath_common+0x70/0x94)
[ 62.695549] r4:00000000 r3:00000000
[ 62.699459] [<c004aec4>] (warn_slowpath_common+0x0/0x94) from [<c004af7c>] (warn_slowpath_null+0x24/0x2c)
[ 62.709701] r8:00000000 r7:00000000 r6:bf106664 r5:bf128aa0 r4:cdee0ce0
[ 62.716993] [<c004af58>] (warn_slowpath_null+0x0/0x2c) from [<bf0f03d4>] (wlcore_set_partition+0xa0/0x444 [wlcore])
[ 62.728275] [<bf0f0334>] (wlcore_set_partition+0x0/0x444 [wlcore]) from [<bf0e9dfc>] (wl1271_recovery_work+0x70/0x51c [wlcore])
[ 62.740525] r7:cd87e400 r6:cdee0d18 r5:cdee0ce0 r4:cdee0f90
[ 62.746689] [<bf0e9d8c>] (wl1271_recovery_work+0x0/0x51c [wlcore]) from [<c0060be8>] (process_one_work+0x11c/0x37c)
[ 62.757859] [<c0060acc>] (process_one_work+0x0/0x37c) from [<c0060fc0>] (worker_thread+0x13c/0x3c0)
[ 62.767555] [<c0060e84>] (worker_thread+0x0/0x3c0) from [<c006775c>] (kthread+0xac/0xb8)
[ 62.776237] [<c00676b0>] (kthread+0x0/0xb8) from [<c0014958>] (ret_from_fork+0x14/0x3c)
[ 62.784792] r7:00000000 r6:00000000 r5:c00676b0 r4:cd893e60
[ 62.790917] ---[ end trace 77d2d02c3584e330 ]---
[ 62.798120] ieee80211 phy0: Hardware restart was requested
root@am335x-evm:~#

******************************************************************************************

My WLAN_EN pin toggling while doing "ifconfig wlan0 up" and "ifconfig wlan0 down",

and I tested the WLAN_IRQ pin also working with sysfs entries, It is also toggling if i am giving 0 and 1 values.

I have changed the WL1271_WAKEUP_TIMEOUT value to 2500, Same issue,

Please any one tell me, What could be the issue ?

Regards,

~ Bhaskar

over 10 years ago

0 Joseph Gigi over 10 years ago

TI__Guru* 85400 points

Hi Bhaskar,

This could be because of wrong WLAN_IRQ mapping. Can you check this in your board/dts file?

Regards,
Gigi Joseph.

0 samantula bhaskarrao over 10 years ago in reply to Joseph Gigi

Intellectual 785 points

Hello Gigi Joseph,

I have checked the GPIO0_31 with Sysfs entries before configuring WLAN_IRQ. It is working good.

My configuration for WLAN_IRQ in my DTS file is :

*****************************************************************************

wlan_pins: pinmux_wlan_pins {

pinctrl-single,pins = <

0x74 (PIN_INPUT | MUX_MODE7) /* gpmc_wpn.gpio0_31 WLAN_IRQ */

0x88 (PIN_OUTPUT | MUX_MODE7) /* gpmc_csn3.gpio2_0 WLAN_EN */

};

*************************

wlcore {

compatible = "wlcore";

gpio = <31>; /* Bank0, pin31 */

* TODO: use edge irqs for suspend/resume.

* in newer kerenls, we seem to miss interrupts when

* working with edge irqs, so revert back to level irqs.

/* platform-quirks = <1>; */

/* if a 12xx card is there, configure the clock to

WL12XX_REFCLOCK_38_XTAL */

board-ref-clock = <4>;

};

*************************

	#address-cells = <1>;
	#size-cells = <0>;
	wlcore: wlcore@0 {
	compatible = "ti,wlcore";
	reg = <2>;
	interrupt-parent = <&gpio0>;
	interrupts = <31 IRQ_TYPE_NONE>;

**********************************************************************

could you please tell me where i am doing wrong with IRQ pin mapping ?

Regards,

Bhaskar

0 Joseph Gigi over 10 years ago in reply to samantula bhaskarrao

TI__Guru* 85400 points

Hi Bhaskar,

Is the GPIO0_31 mapping to WLAN_IRQ in your board?
Can you share the output of "cat /proc/interrupts" after a turn on?

Regards,
Gigi Joseph.

0 samantula bhaskarrao over 10 years ago in reply to Joseph Gigi

Intellectual 785 points

Dear Gigi Joseph,

Here is the output log :

root@am335x-evm:~# cat /proc/interrupts | grep wl
175: 0 GPIO 31 wl18xx

Regards,
Bhasakar

0 Joseph Gigi over 10 years ago in reply to samantula bhaskarrao

TI__Guru* 85400 points

Hi Bhaskar,

I don't see any interrupt being triggered. I would expect to see something like the below:

//Before wlan turn on
root@am335x-evm:~# cat /proc/interrupts | grep wl18xx
257: 0 481ae000.gpio 17 wl18xx

//Turn on wlan
root@am335x-evm:~# ifconfig wlan0 up
[ 68.666229] wlcore: PHY firmware version: Rev 8.2.0.0.232
[ 68.775170] wlcore: firmware booted (Rev 8.9.0.0.48)

//After wlan turn on
root@am335x-evm:~# cat /proc/interrupts | grep wl18xx
257: 1 481ae000.gpio 17 wl18xx

Regards,
Gigi Joseph.

0 samantula bhaskarrao over 10 years ago in reply to Joseph Gigi

Intellectual 785 points

hello Gigi Joseph,

I agree with you, the IRQ should increase while doing operation on wlan0.
But it is not increasing.

What could be the reason ? and where i am doing wrong ?

Regards,
Bhaskar

0 Joseph Gigi over 10 years ago in reply to samantula bhaskarrao

TI__Guru* 85400 points

Hi Bhaskar,

Can you verify using a scope that the WLAN_IRQ is not toggling?

Regards,
Gigi Joseph.

0 samantula bhaskarrao over 10 years ago in reply to Joseph Gigi

Intellectual 785 points

Dear Gigi Joseph,

We found that, some hardware issue is with my module. Thank you for the support.

And can you provide the " Register level reference document for WL18xx ".

Regards,
Bhaskar

0 Joseph Gigi over 10 years ago in reply to samantula bhaskarrao

TI__Guru* 85400 points

Hi Bhaskar,

The register information for wl18xx can be found in the Linux Open source driver. Please see: "drivers\net\wireless\ti\wl18xx\reg.h"

Regards,
Gigi Joseph.

0 veera anjaneyulu over 9 years ago in reply to samantula bhaskarrao

Expert 1920 points

Hi joseph ,

we are also facing same issue,but we are using latest sdk-3.xx and kernel 4.4.12 .ti module jorjin wg7833 module. may i know what is the hardware issue?

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wlcore: ERROR ELP wakeup timeout! with WL18xx