Resurrecting the SuperH Architecture (2015)

LWN.net is a subscriber-supported publication; we rely on subscribers to keep the entire operation going. Please help out by buying a subscription and keeping LWN on the net. By Nathan Willis June 10, 2015 LinuxCon Japan Processor architectures are far from trivial; untold millions of dollars and many thousands of hours have likely gone into the creation and refinement of the x86 and ARM architectures that dominate the CPUs in Linux boxes today. But that does not mean that x86 and ARM are the only architectures of value, as Jeff Dionne, Rob Landley, and Shumpei Kawasaki illustrated in their LinuxCon Japan session "Turtles all the way down: running Linux on open hardware." The team has been working on breathing new life into a somewhat older architecture that offers comparable performance to many common system-on-chip (SoC) designs - and which can be produced as open hardware.