Raspberry Pi Zero 3 W and Pi 4 Model A on the Way?

Two new Raspberry Pi boards have quietly turned up in Raspberry Pi’s Linux kernel tree, and neither of them is quite what I’d have guessed. Device tree files for a Raspberry Pi Zero 3 W and a Raspberry Pi 4 Model A have landed (Phoronix spotted it first), and whilst there’s no official announcement just yet, device tree files tend to give away a surprising amount if you can decipher them and I gave it my best shot. Raspberry Pi Zero 3 W: A Pi 4 Shrunk Down? The Raspberry Pi Zero 2 W launched almost exactly five years ago (tomorrow, in fact), so a successor has been a loooooong time coming. If you want a refresher on where things stood back then, my Raspberry Pi Zero 2 W vs Zero W benchmarks piece covers the jump from the original pretty well. The headline from the Zero 3 W device tree is the SoC. It’s the Broadcom BCM2711, the same quad-core Cortex-A72 chip that powers the Raspberry Pi 4, replacing the Zero 2 W’s quad-core 1GHz Cortex-A53 RP3A0. If you want an idea of the sort of gap…