From bd25da88057e9a4435e49a04df1c9e89ff0dfdf2 Mon Sep 17 00:00:00 2001 From: Sebastian Huber Date: Tue, 25 Sep 2018 10:13:19 +0200 Subject: user: Add i.MX 7D MMC/SDCard driver Close #3525. --- user/bsps/bsps-arm.rst | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'user/bsps/bsps-arm.rst') diff --git a/user/bsps/bsps-arm.rst b/user/bsps/bsps-arm.rst index 70a6162..f261db1 100644 --- a/user/bsps/bsps-arm.rst +++ b/user/bsps/bsps-arm.rst @@ -130,6 +130,14 @@ system controls: A value of zero for the time or count disables the interrupt coalescing in the corresponding direction. +MMC/SDCard Driver +----------------- + +The MMC/SDCard driver (uSDHC module) is provided by the `libbsd`. It is +initialized according to the device tree. Pin re-configuration according to +the serial clock frequency is not supported. Data transfers are extremely +slow. This is probably due to the missing DMA support. + Caveats ------- -- cgit v1.2.3