N900 modem support in 3.18-rc1

Pali Rohár pali.rohar at gmail.com
Wed Nov 5 13:06:04 PST 2014

Maybe you need to enable modem?

This is n900 init sequence from script: nokia-n900-configs.sh

    # set up the GPIO's for N900 modem:
    echo 70 >/sys/class/gpio/export
    echo low >/sys/class/gpio/gpio70/direction
    echo 0 >/sys/class/gpio/gpio70/value
    echo 73 >/sys/class/gpio/export
    echo high >/sys/class/gpio/gpio73/direction
    echo 0 >/sys/class/gpio/gpio73/value
    echo 74 >/sys/class/gpio/export
    echo low >/sys/class/gpio/gpio74/direction
    echo 75 >/sys/class/gpio/export
    echo low >/sys/class/gpio/gpio75/direction
    echo 157 >/sys/class/gpio/export
    echo low >/sys/class/gpio/gpio157/direction
    echo 0 >/sys/class/gpio/gpio157/value
    # create symlinks for ofono N900 plugin
    mkdir -p /dev/cmt
    ln -nsf /sys/class/gpio/gpio70 /dev/cmt/cmt_apeslpx
    ln -nsf /sys/class/gpio/gpio74 /dev/cmt/cmt_en
    ln -nsf /sys/class/gpio/gpio73 /dev/cmt/cmt_rst_rq
    ln -nsf /sys/class/gpio/gpio75 /dev/cmt/cmt_rst
    ln -nsf /sys/class/gpio/gpio157 /dev/cmt/cmt_bsi

Pali Rohár
pali.rohar at gmail.com
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