sd card driver for raspi4, if you want to use it, change [dev-dependencies] in modules/axfs/Cargo.toml from axdriver = { path = "../axdriver", features = ["block", "ramdisk"] } to axdriver = { path = "../axdriver", features = ["block", "mmc"] } ans change [features] in modules/axruntime/Cargo.toml from "fs = ["alloc", "paging", "axdriver/virtio-blk", "dep:axfs"]" to "fs = ["alloc", "paging", "axdriver/mmc", "dep:axfs"]

bcm2835-sdhci

A sd card driver for raspi4 in Rust.