Such a big plan. I just did a small project with (Real-time patch for linux kernel) + (processor affinity) + (super loop) on A20. Since A20 has two A7, a real time process can occupy a processor and leave the other for other tasks. With out a working main line kernel, it seems like you have a lot of work to do to customize the kernel.
On Tue, Sep 30, 2014 at 4:46 AM, javqui <wavetofind...@gmail.com> wrote: > Hi, > I'm working on a couple of projects requiring the classic Micro controller > features (low power, deterministic real time processing) and the classic > UX, flexibility and functionality of Linux /android. > > Most SoCs today provide many high level external hardware interfaces (like > Camera, USB, HDMI, etc) but some projects require additional drivers and > interfaces to handle different external hardware. Usually we solve the > interconnectivity with extra MCUs, FPGAs or other specialized chip > interfaces available. > > Sometimes, we design product boards with two solutions: a Cortex A SoC > like Allwinner/rockchip/Omap series and a small MCU Cortex M like the STM32 > series, but with a powerful A80, it could change forever. > > I will receive my first Optimus board soon, and I want to customize the > kernel to create a classic Linux running on the powerful 4x A15+ GPU and > Nucleus (or Free RTOS) on one or two of the A7 of the Allwinner A80 Soc. (I > made similar kernel works with MTK SoCs in the past, but never try to run > two operating systems in the same chip at the same time) > > Both projects require continuous operation and deterministic real time > response on the low power processor(s) (RTOS on A7). > User interaction (Linux on the A15 + GPU side ) is only eventual, so > termal issues by running almost all processors at the same time > occasionally, should not be a problem. > > If anyone anticipate a significant barrier to build a kernel of this type, > please share it here, I will really appreciate. I will share the results > and evaluation test here > > Additionally I will really appreciate if someone could help me to get the > A80 user manual, (please contact me by email). Both projects require access > to low level A80 features for special hardware interfaces and the user > manual is a must for both projects and future product projects related with > the A80. I want to switch almost all my projects to Allwinner A80. > > Javqui > > -- > You received this message because you are subscribed to the Google Groups > "linux-sunxi" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to linux-sunxi+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to linux-sunxi+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
