First published at: https://forums.sifive.com/t/dont-fear-the-bricking-unbricking-unmatched-via-jtag/5449 Despite, as i think, this is quite obvious, some people miss the point. So let me show you how to unbrick the HiFive Unmatched board, that’s […]
Using gpio-generic and irq_chip_generic subsystems for gpio driver
Intoduction This article is a logical continuation of the previous one and it is recommended to stady after reading the previous material. The current note is necessary for understanding the […]
QEMU ivshmem Introducing interrupt capable virtual gpio concept
Introduction It’s hard to underestimate the role of GPIO’s, especially in ARM embedded systems. Apart of being a very popular material for starters, GPIO’s provide a way for controlling the […]