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Pi2 Model B v1.2 kernel issues

pi2bv1.1

The new Pi2 B v1.2 uses a new chip that functions differently from Pi2 B v1.1. I wish we were told this before ordering more Pi's. We are using custom kernel in our current products with Pi2 B v1.1 and cannot just upgrade to the latest kernel/firmware. Can you point me to documentation on how to change the kernel 3.18.14 to use the Pi2 B v1.2 hardware? If that is not possible, where can I buy Pi2 B v1.1?

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  • Hi ,

     

    Yes it looks like the Raspberry Pi 2 Model B has changed its SoC (processor) from the v1.1 to the v1.2, it is now running the same 64bit Quad Core processor as the Raspberry Pi 3, however it is downclocked to 900mhz processor. This means that your custom kernel isn't going to work.

     

    Your choice will be to either find Raspberry Pi 2 v1.1 devices, or to recompile your linux kernel, and you will find the sources on git, so you may be able to 'diff' between your customisations for the kernel and the sources from the Pi Foundation. This may be made a bit easier for you now that Linux Kernel 4.8 has arrived with support for the new BCM SoC chip.

     

    The Pi Foundation only recently (this week) got Raspbian booting on the Pi 2 v1.2, so if you've already tried to do this, it would be a good idea to try again.

  • in reply to cstanton

    Has anybody successfully configured a HotSpot/SoftAP running on a Pi2B v1.2.

    It looks like there are driver errors for the RT5370

     

    This is becoming a serious issue trying to get this to work :-(

  • in reply to Former Member

    the kernel outputs the following errors before disconnecting the clients

     

     

    Dec  9 17:41:34 raspberrypi kernel: [  593.401956] ieee80211 phy0: rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed -71

    Dec  9 17:41:34 raspberrypi kernel: [  593.402335] ieee80211 phy0: rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed -71

    ...

    Dec  9 17:41:36 raspberrypi kernel: [  595.508947] ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset

    Dec  9 17:41:38 raspberrypi kernel: [  597.228951] ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset

    ...

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  • in reply to Former Member

    the kernel outputs the following errors before disconnecting the clients

     

     

    Dec  9 17:41:34 raspberrypi kernel: [  593.401956] ieee80211 phy0: rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed -71

    Dec  9 17:41:34 raspberrypi kernel: [  593.402335] ieee80211 phy0: rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed -71

    ...

    Dec  9 17:41:36 raspberrypi kernel: [  595.508947] ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset

    Dec  9 17:41:38 raspberrypi kernel: [  597.228951] ieee80211 phy0: rt2x00usb_watchdog_tx_dma: Warning - TX queue 2 DMA timed out, invoke forced forced reset

    ...

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