The purpose of this document is to explain some of the procedures and thought processes behind reducing the amountof RAM used by the Linux kernel in order achieve a RAM footprint small enough to fit within the internal SRAM of anRZ/A1 device.
Since the Linux kernel and open source community is constantly changing, please keep in mind that this documentedwas written in February of 2015, and the kernel references were to the Linux-3.14 code base.
This whitepaper also assumes you have a baseline understanding of the Linux kernel and how to build it.