bluetooth command failed

[mohamed-ali_fod]

Hello,

I am running kernel 5.4 on imx6quad with bluez5.55, randomly when I power on the bluetooth I got the following issue:

~# btmgmt power on
[  774.712124] Bluetooth: hci0: command 0x0c25 tx timeout
[  776.792123] Bluetooth: hci0: command 0x0c38 tx timeout
[  778.872121] Bluetooth: hci0: command 0x0c39 tx timeout
[  780.952125] Bluetooth: hci0: command 0x0c05 tx timeout
[  783.032127] Bluetooth: hci0: command 0x0c16 tx timeout
[  783.192091] mmc0: Timeout waiting for hardware interrupt.
[  783.197497] mmc0: sdhci: ============ SDHCI REGISTER DUMP ===========
[  783.203942] mmc0: sdhci: Sys addr:  0x646d1580 | Version:  0x00000002
[  783.210386] mmc0: sdhci: Blk size:  0x00000040 | Blk cnt:  0x00000001
[  783.216829] mmc0: sdhci: Argument:  0xa2000040 | Trn mode: 0x00000003
[  783.223271] mmc0: sdhci: Present:   0x01f8858e | Host ctl: 0x00000013
[  783.229716] mmc0: sdhci: Power:     0x00000002 | Blk gap:  0x00000080
[  783.236157] mmc0: sdhci: Wake-up:   0x00000008 | Clock:    0x0000001f
[  783.242600] mmc0: sdhci: Timeout:   0x0000008f | Int stat: 0x00000000
[  783.249041] mmc0: sdhci: Int enab:  0x117f110b | Sig enab: 0x117f110b
[  783.255482] mmc0: sdhci: ACmd stat: 0x00000000 | Slot int: 0x00000003
[  783.261923] mmc0: sdhci: Caps:      0x07eb0000 | Caps_1:   0x0000a007
[  783.268364] mmc0: sdhci: Cmd:       0x0000353a | Max curr: 0x00ffffff
[  783.274805] mmc0: sdhci: Resp[0]:   0x00002000 | Resp[1]:  0x00000000
[  783.281245] mmc0: sdhci: Resp[2]:   0x00000000 | Resp[3]:  0x00000000
[  783.287685] mmc0: sdhci: Host ctl2: 0x00000088
[  783.292131] mmc0: sdhci: ADMA Err:  0x00000007 | ADMA Ptr: 0x6c058200
[  783.298572] mmc0: sdhci-esdhc-imx: ========= ESDHC IMX DEBUG STATUS DUMP =========
[  783.306143] mmc0: sdhci-esdhc-imx: cmd debug status:  0x2100
[  783.311804] mmc0: sdhci-esdhc-imx: data debug status:  0x2220
[  783.317550] mmc0: sdhci-esdhc-imx: trans debug status:  0x2328
[  783.323384] mmc0: sdhci-esdhc-imx: dma debug status:  0x2402
[  783.329045] mmc0: sdhci-esdhc-imx: adma debug status:  0x25b4
[  783.334790] mmc0: sdhci-esdhc-imx: fifo debug status:  0x2684
[  783.340538] mmc0: sdhci-esdhc-imx: async fifo debug status:  0x2750
[  783.346805] mmc0: sdhci: ============================================
[  783.353457] BT: host_to_card, write iomem (1) failed: -110

Set Powered for hci0 failed with status 0x03 (Failed)

root@pcm-imx6quad:~# [  785.112123] Bluetooth: hci0: command tx timeout

Any idea please?

Best regards,

Mohamed Ali

[jimmychan]

Please download the corresponding BSP version documentation.

https://www.nxp.com/design/software/embedded-software/i-mx-software/embedded-linux-for-i-mx-applicat...

e.g. In the L5.4.70_2.3.0 documentation, i.MX Reference Manual.pdf.

Please read the chapter 4.12.4 Bluetooth Stack for the details.