The ARM ecosystem is vast and pervasive today, with Samsung’s latest Exynos 2600 chip also utilizing ARMv9.3 CPU cores. Even so, Samsung has apparently taken its first tentative steps towards an open-source RISC-V architecture via a dedicated SSD controller chip.
Samsung is temporarily exploring open source RISC-V architecture via a custom SSD controller chip, moving away from ARM IP
According to South Korea-based ETNews, Samsung’s upcoming SSD lineup, called the BM9K1 and designed entirely in-house, will utilize a controller chip based on the open-source RISC-V architecture.
For those who may not be aware, the controller chip is the brains of an SSD, managing data transfer between the host PC and NAND flash memory, as well as additional tasks such as error correction, garbage collection, and wear equalization, where data is distributed evenly across the NAND cells.
Of course, until now, Samsung used the ARM instruction set in its SSD controller chips, incurring huge licensing costs in the process. What’s more, with Western Digital SSDs already using RISC-V-based SweRV cores in their controller chips for several years, it was only a matter of time until Samsung made the switch, especially since the transition made too much economic sense.
It’s worth noting that, over the years, Samsung has repeatedly tried to incorporate RISC-V architecture into its broad product portfolio. However, none of these efforts made it beyond the demo stage. As such, the BM9K1 SSD represents Samsung’s first practical step towards an open source instruction set, and provides tantalizing possibilities for the future. For example, future Exynos chips will probably utilize RISC-V CPU cores rather than cores based on ARM intellectual property.
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