M.2 PCIE port does not detect USB for ls1043Ardb reference platform

[gfine1]

I am attempting to get a WiFi (Laird SIPT-60-2230C-PU) card working for Bluetooth. The card is attached via a MPCIe m.2 adapter that claims to support USB.

I have no problem with the WI-fi side but the Bluetooth side is not seen.  According to the vendor the BT side  is supposed to show up as /dev/ttyUSB0 or /dev/ttymxc3

I have activated USB serial in the kernel configuration, and yet I do not see the device. The Wifi card's vendor says it may be in the device tree.  I am using the default  dtsi in a Yocto build.

root@ls1043ardb:~# lsusb -v
Bus 005 Device 001: ID 1d6b:0002
Bus 003 Device 001: ID 1d6b:0002
Bus 001 Device 001: ID 1d6b:0002
Bus 006 Device 001: ID 1d6b:0003
Bus 004 Device 001: ID 1d6b:0003
Bus 002 Device 001: ID 1d6b:0003

root@ls1043ardb:~# lspci -v
0000:00:00.0 PCI bridge: Freescale Semiconductor Inc Device 8080 (rev 11) (prog-
if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0, IRQ 73
Bus: primary=00, secondary=01, subordinate=ff, sec-latency=0
I/O behind bridge: None
Memory behind bridge: None
Prefetchable memory behind bridge: 0000000040000000-00000000401fffff [si
ze=2M]
Expansion ROM at 4840200000 [disabled] [size=2K]
Capabilities: [40] Power Management version 3
Capabilities: [50] MSI: Enable- Count=1/16 Maskable- 64bit+
Capabilities: [70] Express Root Port (Slot-), MSI 00
Capabilities: [100] Advanced Error Reporting
Capabilities: [148] Secondary PCI Express <?>
Kernel driver in use: pcieport

0000:01:00.0 Ethernet controller: Marvell Technology Group Ltd. Device 2b42 (rev
11)
Flags: bus master, fast devsel, latency 0, IRQ 84
Memory at 4840000000 (64-bit, prefetchable) [size=1M]
Memory at 4840100000 (64-bit, prefetchable) [size=1M]
Capabilities: [40] Power Management version 3
Capabilities: [50] MSI: Enable+ Count=1/32 Maskable+ 64bit+
Capabilities: [70] Express Endpoint, MSI 00
Capabilities: [b0] MSI-X: Enable- Count=32 Masked-
Capabilities: [100] Advanced Error Reporting
Capabilities: [148] Device Serial Number 00-00-00-00-00-00-00-00
Capabilities: [158] Power Budgeting <?>
Capabilities: [168] Latency Tolerance Reporting
Capabilities: [170] L1 PM Substates
Kernel driver in use: lrdmwl_pcie
Kernel modules: lrdmwl_pcie

0001:00:00.0 PCI bridge: Freescale Semiconductor Inc Device 8080 (rev 11) (prog-
if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0, IRQ 74
Bus: primary=00, secondary=01, subordinate=ff, sec-latency=0
I/O behind bridge: None
Memory behind bridge: 40000000-400fffff [size=1M]
Prefetchable memory behind bridge: None
Expansion ROM at 5040100000 [disabled] [size=2K]
Capabilities: [40] Power Management version 3
Capabilities: [50] MSI: Enable- Count=1/16 Maskable- 64bit+
Capabilities: [70] Express Root Port (Slot-), MSI 00
Capabilities: [100] Advanced Error Reporting
Capabilities: [148] Secondary PCI Express <?>
Kernel driver in use: pcieport

0001:01:00.0 Non-Volatile memory controller: Micron Technology Inc Device 6001 (
rev 03) (prog-if 02 [NVM Express])
Subsystem: Micron Technology Inc Device 0100
Flags: bus master, fast devsel, latency 0, IRQ 74, NUMA node 0
Memory at 5040000000 (64-bit, non-prefetchable) [size=16K]
Capabilities: [40] Power Management version 3
Capabilities: [50] MSI: Enable- Count=1/8 Maskable+ 64bit+
Capabilities: [70] Express Endpoint, MSI 00
Capabilities: [b0] MSI-X: Enable+ Count=16 Masked-
Capabilities: [100] Advanced Error Reporting
Capabilities: [158] Secondary PCI Express <?>
Capabilities: [178] Latency Tolerance Reporting
Capabilities: [180] L1 PM Substates
Kernel driver in use: nvme

Any help would be appreciated.

Cheers,

Glen

[yipingwang]

For kernel_config, please configure CONFIG_USB_SERIAL,  you are planning to connect a USB-to-UART adapter to our board.

Please set above CONFIG to y and refer to here for details, and maybe extra driver is also needed, which depend on the brand/type of your adapter, such as below list (quoted from drivers/usb/serial/Makefile):

8 obj-$(CONFIG_USB_SERIAL)                        += usbserial.o

  9

10 usbserial-y := usb-serial.o generic.o bus.o

11

12 usbserial-$(CONFIG_USB_SERIAL_CONSOLE)  += console.o

13

14 obj-$(CONFIG_USB_SERIAL_AIRCABLE)               += aircable.o

15 obj-$(CONFIG_USB_SERIAL_ARK3116)                += ark3116.o

16 obj-$(CONFIG_USB_SERIAL_BELKIN)                 += belkin_sa.o

17 obj-$(CONFIG_USB_SERIAL_CH341)                  += ch341.o

18 obj-$(CONFIG_USB_SERIAL_CP210X)                 += cp210x.o

19 obj-$(CONFIG_USB_SERIAL_CYBERJACK)              += cyberjack.o

20 obj-$(CONFIG_USB_SERIAL_CYPRESS_M8)             += cypress_m8.o

21 obj-$(CONFIG_USB_SERIAL_DEBUG)                  += usb_debug.o

22 obj-$(CONFIG_USB_SERIAL_DIGI_ACCELEPORT)        += digi_acceleport.o

23 obj-$(CONFIG_USB_SERIAL_EDGEPORT)               += io_edgeport.o

24 obj-$(CONFIG_USB_SERIAL_EDGEPORT_TI)            += io_ti.o

25 obj-$(CONFIG_USB_SERIAL_EMPEG)                  += empeg.o

26 obj-$(CONFIG_USB_SERIAL_F81232)                 += f81232.o

27 obj-$(CONFIG_USB_SERIAL_F8153X)                 += f81534.o

28 obj-$(CONFIG_USB_SERIAL_FTDI_SIO)               += ftdi_sio.o

29 obj-$(CONFIG_USB_SERIAL_GARMIN)                 += garmin_gps.o

30 obj-$(CONFIG_USB_SERIAL_IPAQ)                   += ipaq.o

31 obj-$(CONFIG_USB_SERIAL_IPW)                    += ipw.o

32 obj-$(CONFIG_USB_SERIAL_IR)                     += ir-usb.o

33 obj-$(CONFIG_USB_SERIAL_IUU)                    += iuu_phoenix.o

34 obj-$(CONFIG_USB_SERIAL_KEYSPAN)                += keyspan.o

35 obj-$(CONFIG_USB_SERIAL_KEYSPAN_PDA)            += keyspan_pda.o

36 obj-$(CONFIG_USB_SERIAL_KLSI)                   += kl5kusb105.o

37 obj-$(CONFIG_USB_SERIAL_KOBIL_SCT)              += kobil_sct.o

38 obj-$(CONFIG_USB_SERIAL_MCT_U232)               += mct_u232.o

39 obj-$(CONFIG_USB_SERIAL_METRO)                  += metro-usb.o

40 obj-$(CONFIG_USB_SERIAL_MOS7720)                += mos7720.o

41 obj-$(CONFIG_USB_SERIAL_MOS7840)                += mos7840.o

42 obj-$(CONFIG_USB_SERIAL_MXUPORT)                += mxuport.o

43 obj-$(CONFIG_USB_SERIAL_NAVMAN)                 += navman.o

44 obj-$(CONFIG_USB_SERIAL_OMNINET)                += omninet.o

45 obj-$(CONFIG_USB_SERIAL_OPTICON)                += opticon.o

Please provide your Linux Kernel booting up log if further assistance is needed.

[gfine1]

I have all those turned on. My setup is a ls1043ardb reference platform.  We added a MPCIe adapter that claims to have USB pinned out. Mounted on the adapter is a Laird SIPT-60 Wi-Fi card.  I expect to see either a /dev/ttyUSB0 or /dev/ttymxc3 in /dev.

I am using the fsl-ls1043a-rdb-sdk.dtb device tree file without modifications. Is there something I need to add?

Boot log is attached.

Cheers, Glen

[yipingwang]

Have you enabled "CONFIG_USB_SERIAL_CONSOLE=y"?