On Sat, Jan 26, 2019 at 09:40:36AM +0530, Manivannan Sadhasivam wrote: > Hello, > > This patchset adds initial support for Bitmain BM1880 SoC and Sophon > Edge board. BM1880 SoC consists of a Dual Core ARM Cortex A53 Application > processor subsystem, a single core RISC-V subsystem and a Tensor > Processor subsystem. Hi Manivannan Interesting combination of CPUs. > This patchset adds support for only ARM Cortex A53 Application > processor subsystem with UART, which enables the board to boot into > initramfs with 2 CPUs. Looking forward, what sharing do you expect at the device tree level? Looking at https://sophon-file.bitmain.com.cn/sophon-prod/drive/18/11/06/19/BM1880%20product%20brief%20V0.04_Chinese%20versionV0.06.pdf it appears all the devices can be shared between the CPUs. So do you plan to have a shared .dtsi file somewhere? Is ARCH_BITMAIN going to be both ARM64 and RISC-V? Thanks Andrew