README.md: update README

Update the README and fix some information.

README.md

@@ -11,14 +11,11 @@ git submodule init
 git submodule update
 ```
 
-### Copy PFE firmware
-Please make sure that you copy the PFE firmware with the right version meta-netmodule-bsp/recipes-kernel/pfe/pfe_<version> to meta-netmodule-bsp/recipes-kernel/pfe/pfe/. You need to copy the class and util firmware files. This is necessary because the firmware is currently only available under NDA.
-
 ## Selecting hardware target
 The hardware target can be selected by sourcing the machine_select script:
 ```
 source machine_select
-9  # Selecting ProCV2.2
+9  # Selecting VCU3
 ```
 
 ## Building an image
@@ -54,79 +51,3 @@ It can be build with the following commands:
 source env.image-ostree
 bitbake netmodule-linux-image-dev
 ```
-
-## Usage
-
-### 1000BaseT1
-
-The PFE driver comes up automatically. However, it does by default rely on autoneg. This doesn't seem to work with the Göpel Media Converter EasyCON. Therefore, a reset is required. Currently pfe0 shares the reset signal with eth0. That's why the following works:
-```
-brginup.sh enable-pfe
-ifconfig eth0 down
-ifconfig eth0 up
-```
-Now the 1000BaseT1 PHY works in default mode.
-
-### Modem
-The modem is disabled by default. However, it is possible to enable it with the following command:
-```
-bringup.sh enable-modem
-```
-
-To use adb you have to do the following:
-```
-echo 0x2c7c >> ~/.android/adb_usb.ini
-adb shell
-```
-
-### Wifi
-Enable the Wifi module (make sure you enable the modem first):
-```
-bringup.sh enable-wifi
-```
-
-### ADCs
-Read out the SPI ADCs:
-```
-bringup.sh read-adc
-```
-
-### IMU
-To enable the IMU you can call enable-imu.sh:
-```
-bringup.sh enable-imu.sh
-```
-
-To communicate with the imu you can use test-imu.sh:
-```
-# Read/Write
-bringup.sh read-write-imu /dev/spidev1.0 1 2020
-# Read
-bringup.sh read-write-imu /dev/spidev1.0 1
-```
-
-### Secure Element
-To enable the secure elelment call enable-secure-element:
-```
-bringup.sh enable-secure-element
-```
-There is no helper for the secure element available yet. You can use spidev_test to communicate with it:
-```
-spidev_test --help
-```
-
-### V2X
-Enable the V2X and load a firmware (make sure you enable the modem first):
-```
-bringup.sh enable-v2x <path to fw>
-```
-
-### GPIOS
-Set gpio:
-```
-bringup.sh set-gpio <gpio> <value>
-```
-Get gpio:
-```
-bringup.sh get-gpio <gpio>
-```