DWMSHC(4) | Device Drivers Manual | DWMSHC(4)

# NAME

`dwmshc` — Synopsys DesignWare Mobile Storage Host Controller

# SYNOPSIS

`dwmshc* at fdt?`
`sdmmc* at dwmshc?`

# DESCRIPTION

The `dwmshc` driver provides support for the Synopsys DesignWare Mobile Storage Host Controller core. This core is used on the Rockchip RK3566 and RK3568 SoCs as the eMMC controller.

The Synopsys DesignWare Mobile Storage Host Controller core implements the SD Host Controller Standard Simplified Specification, but requires non-standard support for high clock rates.

The sdmmc(4) subsystem performs SD/MMC transactions to communicate with the MMC/SD/SDIO devices connected to the controller.

# SEE ALSO

intro(4), sdhc(4), sdmmc(4)

# HISTORY

The `dwmshc` driver first appeared in OpenBSD 7.4.

April 19, 2023 | Debian