Add SD card support - Githubissues

worproject / Rockchip-Windows-Drivers

Windows on Arm drivers for RK35xx platforms.

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Add SD card support #46

Closed mariobalanica closed 3 months ago

mariobalanica commented 3 months ago

This is an sdport-based miniport driver for the two MSHC instances on RK3588: one for SD card slot, the other for SDIO Wi-Fi.

Features:

Speed modes: Default, HS, SDR50, SDR104
Internal 32-bit scatter/gather DMA support
Card detection
Crashdump support

To-do:

Test eMMC support
SDIO (e.g. CMD53)
Support SD version 1 cards (they don't respond to CMD8 by design, which makes sdport assume it's not an SD card at all)

Known issues:

Plugging/unplugging the card quickly can lead to a bugcheck. This happens due to race conditions in sdport w.r.t. card removal and request completion. It ends up dereferencing a NULL pointer, which was supposed to be the outstanding request.