IHC3308GW with WWAN MC7354 card

Chip Platform Rockchip
1

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.

2

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

3

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
#

4

show kernel config: zcat /proc/config.gz

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