IHC3308GW with WWAN MC7354 card

ars102

Hello,
I tried to test WWAN mPCIe card MC7354 in IHC3308GW.

Running full Ubuntu image, it can recognize the card, but no serial AT tty device, I tried to rebuild kernel with firefly-rk3308b_docker_defconfig but with that new kernel the MC7354 is not recognized anymore (lsusb command).

So could you please help:
- Which kernel config is using in bundle Ubuntu image ?
- How to change kernel config options to enable MC7354 card ?

Thank you.

Javier

The current usb driver does not support MC7354, please contact the production MC7354 to provide usb driver.

ars102

Could you please show the kernel config using in FW IHC3308GW-Ubuntu18-NoUi-20220106.img ?

- If I do flashing whole FW IHC3308GW-Ubuntu18-NoUi-20220106.img, MC7354 is recognized well

# lsusb
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 004: ID 0bda:8152 Realtek Semiconductor Corp.
Bus 002 Device 003: ID 0bda:8179 Realtek Semiconductor Corp. RTL8188EUS 802.11n Wireless Network Adapter
Bus 002 Device 005: ID 1199:68c0 Sierra Wireless, Inc.
Bus 002 Device 002: ID 1a40:0101 Terminus Technology Inc. Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub


# mmcli -m 0
  --------------------------
  General  |      dbus path: /org/freedesktop/ModemManager1/Modem/0
           |      device id: db4c6e76f01bd0ec296bfae5a2cad5977522adee
  --------------------------
  Hardware |   manufacturer: Sierra Wireless, Incorporated
           |          model: MC7354
           |       revision: SWI9X15C_05.05.58.00 r27038 carmd-fwbuild1 2015/03/04 21:30:23
           |   h/w revision: 1.0
           |      supported: gsm-umts, lte
           |                 cdma-evdo, lte
           |                 lte
           |                 cdma-evdo, gsm-umts, lte
           |        current: gsm-umts, lte
           |   equipment id: 353968091258849
  --------------------------
  System   |         device: /sys/devices/platform/ff440000.usb/usb2/2-1/2-1.2
           |        drivers: qmi_wwan
           |         plugin: Sierra
           |   primary port: cdc-wdm0
           |          ports: cdc-wdm0 (qmi), wwan0 (net)
  --------------------------
  Status   |           lock: sim-pin2
           | unlock retries: sim-pin (3), sim-pin2 (3), sim-puk (10), sim-puk2 (10)
           |          state: registered
           |    power state: on
           |    access tech: gsm
           | signal quality: 12% (recent)
  --------------------------
  Modes    |      supported: allowed: 2g; preferred: none
           |                 allowed: 3g; preferred: none
           |                 allowed: 2g, 3g; preferred: 3g
           |                 allowed: 2g, 3g; preferred: 2g
           |                 allowed: 2g, 4g; preferred: 4g
           |                 allowed: 2g, 4g; preferred: 2g
           |                 allowed: 3g, 4g; preferred: 3g
           |                 allowed: 3g, 4g; preferred: 4g
           |                 allowed: 2g, 3g, 4g; preferred: 4g
           |                 allowed: 2g, 3g, 4g; preferred: 3g
           |                 allowed: 2g, 3g, 4g; preferred: 2g
           |        current: allowed: 2g, 4g; preferred: 4g
  --------------------------
  Bands    |      supported: egsm, dcs, pcs, g850, utran-1, utran-4, utran-5, utran-8,
           |                 utran-2, eutran-2, eutran-4, eutran-5, eutran-13, eutran-17,
           |                 eutran-25, cdma-bc0, cdma-bc1, cdma-bc10
           |        current: egsm, dcs, pcs, g850, utran-1, utran-4, utran-5, utran-8,
           |                 utran-2, eutran-2, eutran-4, eutran-5, eutran-13, eutran-17,
           |                 eutran-25, cdma-bc0, cdma-bc1, cdma-bc10
  --------------------------
  IP       |      supported: ipv4, ipv6, ipv4v6
  --------------------------
  3GPP     |           imei: 353968091258849
           |    operator id: 45202
           |   registration: home
  --------------------------
  SIM      |      dbus path: /org/freedesktop/ModemManager1/SIM/0

- If I rebuild kernel using firefly-rk3308b_docker_defconfig then lsusb does not show MC7354 card anymore.

cd rk3308-linux/kernel
make ARCH=arm64 firefly-rk3308b_docker_defconfig
make ARCH=arm64 rk3308b-roc-cc-plus-amic_emmc.img


Flash zboot.img to board
  
# lsusb
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 004: ID 0bda:8152 Realtek Semiconductor Corp.
Bus 002 Device 003: ID 0bda:8179 Realtek Semiconductor Corp. RTL8188EUS 802.11n Wireless Network Adapter
Bus 002 Device 002: ID 1a40:0101 Terminus Technology Inc. Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
#

Javier

show kernel config: zcat /proc/config.gz