Hi Nikita, On Sun, Feb 9, 2020 at 10:56 PM Nikita Ermakov <a...@altlinux.org> wrote: > > Hello! > > I am trying to make an SD card working on the sifive_u (hw/riscv/sifive_u.c) > SoC machine. > As far as I understand there is no way to connect an SD card to the SoC with > cmdline for now. So, I started to dig in to the QEMU internals and especially > sifive_u SoC implementation to try to understand how I could connect SD card > to this SoC. > > From what I understood I need to: > 1) Implement SiFive U SPI controller.
This one is definitely needed. > 2) Implement spi-sd adapter in a way like the hw/sd/ssi-sd.c I believe we can just use hw/sd/ssi-sd.c. > > Probably I should merge 1) and 2) into one hw/riscv/sifive_u_spi.c source > file. > > Could somebody correct me please if I am wrong at some point? > I am newbie in the QEMU internals :) > > The purpose is why I want to implement this is to boot up the Linux kernel on > '-machine sifive_u' and load rootfs from SD. Regards, Bin
