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.
2) Implement spi-sd adapter in a way like the 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.
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Thanks,
Nikita
B8 00 4C CD 21