Add Synopsys DesignWare SD Host Controller driver

README.md

@@ -9,7 +9,7 @@ This repository contains drivers for RK35xx-based platforms, with a focus on RK3
 |USB 2.0 & 1.1|usbehci (Inbox)|🔴 Not working|Windows bugchecks if enabled. USBOHCI driver for USB 1.1 is missing in ARM64 builds.|
 |PCIe 3.0 & 2.1|pci (Inbox)|🔴 Not working|MSI & ITS silicon bugs, bad ACPI descriptors|
 |SATA|mshdc (Inbox)|🔴 Not working|If enabled, drive enumerates with no IDs and hangs.|
-|eMMC||🔴 Not working||
+|eMMC|[dwcsdhc](https://github.com/worproject/Rockchip-Windows-Drivers/tree/master/drivers/sd/dwcsdhc)|🟢 Working||
 |SD/SDIO||🔴 Not working||
 |CPU frequency scaling||🔴 Not working|Clocks limited at values set by UEFI.|
 |HDMI output|MSBDD (Inbox)|🟢 Working|Single display with mode limited at 1080p 60 Hz, provided by UEFI GOP.|

build/RockchipDrivers.sln

@@ -3,8 +3,21 @@ Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 17
 VisualStudioVersion = 17.4.33205.214
 MinimumVisualStudioVersion = 10.0.40219.1
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "dwcsdhc", "..\drivers\sd\dwcsdhc\dwcsdhc.vcxproj", "{10452736-7C4F-4206-94F9-AD634213C9C4}"
 EndProject
 Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|ARM64 = Debug|ARM64
+		Release|ARM64 = Release|ARM64
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{10452736-7C4F-4206-94F9-AD634213C9C4}.Debug|ARM64.ActiveCfg = Debug|ARM64
+		{10452736-7C4F-4206-94F9-AD634213C9C4}.Debug|ARM64.Build.0 = Debug|ARM64
+		{10452736-7C4F-4206-94F9-AD634213C9C4}.Debug|ARM64.Deploy.0 = Debug|ARM64
+		{10452736-7C4F-4206-94F9-AD634213C9C4}.Release|ARM64.ActiveCfg = Release|ARM64
+		{10452736-7C4F-4206-94F9-AD634213C9C4}.Release|ARM64.Build.0 = Release|ARM64
+		{10452736-7C4F-4206-94F9-AD634213C9C4}.Release|ARM64.Deploy.0 = Release|ARM64
+	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
 	EndGlobalSection

drivers/sd/dwcsdhc/README.md

@@ -0,0 +1,20 @@
+# Synopsys DesignWare SD/eMMC Host Controller Driver
+This is a driver for the DesignWare Core SD/eMMC Host Controller found in RK35xx SoCs.
+
+It is a miniport that works in conjunction with sdport.sys, which implements the actual SD/SDIO/eMMC protocols and WDM interfaces.
+
+## Hardware details
+The controller itself is SDHCI-compliant, with some peculiarities and a few more on Rockchip's implementation:
+- HS400 has a custom setting.
+- the clock divider is not functional, requiring clock rate changes via CRU instead.
+- the PHY Delay Lines (DLL) need to be configured depending on bus speed mode, especially for HS200/HS400(ES).
+
+## Supported features
+- ADMA2 transfers
+- up to HS SDR52 speed mode (52 MB/s)
+
+## To-do
+* HS400 Enhanced Strobe (the other modes are not planned)
+
+## Credits
+The driver is based on Microsoft's [sdhc sample](https://github.com/microsoft/Windows-driver-samples/tree/main/sd/miniport/sdhc) with a few fixes from [bcm2836sdhc](https://github.com/raspberrypi/windows-drivers/tree/master/drivers/sd/bcm2836/bcm2836sdhc) in regard to request completion and interrupts handling.