I am trying to understand whether it is feasable to interface PI with camera sensor OV2640. This sensor has an outpu digital video port providing 8/10 bit synchronous with Pixel clock running @ 30MHz. Reading data at such speed cannot be done in user space.
I am wondering whether the SMI (secondary memory interface) can provideo such feature. But I cannot find hardware specification (has been removed) anyhwere.
RPI3 come with a kernel driver for SMI. I tested it, enabling it in boot/config.txt and the /dev/smi device is created an is working.
But I need hardware specifications in order to understand whether it can work in synchronous mode, or if I can adapt signal with a small fpga to read data directly into RPI.
Can anyone point me to the SMI hardware specification or to similar projects?