On Wed, Apr 9, 2014 at 11:21 AM, Luca Coelho <luca@xxxxxxxxx> wrote: > On Wed, 2014-04-09 at 11:14 +0200, Yegor Yefremov wrote: >> On Tue, Apr 8, 2014 at 10:29 PM, Luca Coelho <luca@xxxxxxxxx> wrote: >> > On Tue, 2014-04-08 at 17:28 +0200, Yegor Yefremov wrote: >> >> Any idea, what could be wrong? >> > >> > First of all, try a clean kernel. >> >> It is not simple to get a clean kernel. "Official" support for >> am335x-evmsk WLAN was added first in the upcoming 3.15 kernel. I've >> tried the merge window version (3.14.0-12041-g75ff24f-dirty) and get >> following issue: >> >> # calibrator wlan0 plt power_mode on >> wlcore: power up >> wlcore: ERROR timeout waiting for the hardware to complete initialization >> wlcore: ERROR timeout waiting for the hardware to complete initialization >> wlcore: ERROR timeout waiting for the hardware to complete initialization >> wlcore: ERROR firmware boot in PLT mode failed despite 3 retries >> command failed: Input/output error (-5) > > Okay, the main question here is, did you make any changes in the > wlcore/wl12xx code? As I said, the TX watchdog should *not* be > initialized in PLT mode. I made not changes to any file in drivers/net/wireless/ti/ > Maybe you could add some prints in the driver to see when the watchdog > timer is set up? Try to add a printk in every place where > wl12xx_rearm_tx_watchdog_locked() is called to see where it is being > armed. drivers/net/wireless/ti/wlcore/tx.c in wl1271_tx_allocate() # calibrator wlan0 plt power_mode on [ 93.107215] wlcore: power up [ 93.688714] wlcore: firmware booted in PLT mode PLT_ON (PLT 6.3.10.0.133) # [ 139.232802] YY: wl1271_tx_allocate [ 144.241849] wlcore: ERROR Tx stuck (in FW) for 5000 ms. Starting recovery [ 144.249064] ------------[ cut here ]------------ [ 144.254329] WARNING: CPU: 0 PID: 761 at drivers/net/wireless/ti/wlcore/main.c:800 wl12xx_queue_recovery_work+0x60/0x68() [ 144.265917] Modules linked in: [ 144.269294] CPU: 0 PID: 761 Comm: kworker/u2:2 Not tainted 3.14.0-rc4-12739-g17534e5-dirty #248 [ 144.278507] Workqueue: phy0 wl12xx_tx_watchdog_work [ 144.283836] [<c00151e0>] (unwind_backtrace) from [<c0011e38>] (show_stack+0x10/0x14) [ 144.292156] [<c0011e38>] (show_stack) from [<c05c5778>] (dump_stack+0x7c/0x94) [ 144.299909] [<c05c5778>] (dump_stack) from [<c0040274>] (warn_slowpath_common+0x6c/0x90) [ 144.308474] [<c0040274>] (warn_slowpath_common) from [<c0040334>] (warn_slowpath_null+0x1c/0x24) [ 144.317869] [<c0040334>] (warn_slowpath_null) from [<c038de34>] (wl12xx_queue_recovery_work+0x60/0x68) [ 144.327818] [<c038de34>] (wl12xx_queue_recovery_work) from [<c038df04>] (wl12xx_tx_watchdog_work+0xc8/0x1b8) [ 144.338383] [<c038df04>] (wl12xx_tx_watchdog_work) from [<c0058fac>] (process_one_work+0x1ac/0x4c4) [ 144.348059] [<c0058fac>] (process_one_work) from [<c0059e40>] (worker_thread+0x114/0x3b4) [ 144.356820] [<c0059e40>] (worker_thread) from [<c005f9fc>] (kthread+0xcc/0xe8) [ 144.364568] [<c005f9fc>] (kthread) from [<c000e388>] (ret_from_fork+0x14/0x2c) [ 144.372292] ---[ end trace c815a12d05c76600 ]--- Yegor -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
