HelenOS sources
RPI_MEMORY_SKIP 144 kernel/arch/arm32/src/mach/raspberrypi/raspberrypi.c *start = mbase + RPI_MEMORY_SKIP;
RPI_MEMORY_SKIP 145 kernel/arch/arm32/src/mach/raspberrypi/raspberrypi.c *size = msize - RPI_MEMORY_SKIP;
RPI_MEMORY_SKIP 148 kernel/arch/arm32/src/mach/raspberrypi/raspberrypi.c *start = RPI_DEFAULT_MEMORY_START + RPI_MEMORY_SKIP;
RPI_MEMORY_SKIP 149 kernel/arch/arm32/src/mach/raspberrypi/raspberrypi.c *size = RPI_DEFAULT_MEMORY_SIZE - RPI_MEMORY_SKIP;
HelenOS homepage, sources at GitHub