Cross-Compile for RCE (ARM/Zynq)

This guide covers building the rce_stream and rce_memmap drivers for ARM/Zynq targets using the Xilinx toolchain.

Note

This guide applies to the RCE (ARM/Zynq) drivers. For PCIe/x86 native build, see Build and Load the Driver.

Prerequisites

Xilinx ARM cross-compiler (e.g., arm-xilinx-linux-gnueabi-)
Xilinx Linux kernel source (linux-xlnx branch matching your BSP version)
make, git

Build at SLAC (Shortcut)

At SLAC, the Xilinx kernel and toolchain are pre-installed. Use the top-level make target:

make rce

This builds rce_stream, rce_memmap, and rce_hp drivers against the kernel at /sdf/group/faders/tools/xilinx/rce_linux_kernel/.

Build Outside SLAC

ARM/Zynq Target

make -C rce_stream/driver KDIR=/path/to/xilinx/linux-xlnx-v2016.4
make -C rce_memmap/driver KDIR=/path/to/xilinx/linux-xlnx-v2016.4

x86 Buildroot Target

make \
  ARCH=x86_64 \
  CROSS_COMPILE=/path/to/buildroot/host/linux-x86_64/x86_64/usr/bin/x86_64-buildroot-linux-gnu- \
  KERNELDIR=/path/to/buildroot/output/build/linux-4.14.139

Substitute the actual paths to your Xilinx toolchain and kernel source. The SLAC paths shown in the Makefile are site-specific.

Output Location

After a successful build, the compiled modules are placed in:

install/<kernel_version>.arm/rce_stream.ko
install/<kernel_version>.arm/rce_memmap.ko

The <kernel_version> string is determined from the Xilinx kernel source directory.