diff options
| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2018-09-25 10:13:19 +0200 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2018-09-25 10:13:19 +0200 |
| commit | bd25da88057e9a4435e49a04df1c9e89ff0dfdf2 (patch) | |
| tree | daa1c733079c0f12ffd99ff5ed4c6dbfe382264a /user/bsps/bsps-arm.rst | |
| parent | Remove CONFIGURE_HAS_OWN_CONFIGURATION_TABLE (diff) | |
| download | rtems-docs-bd25da88057e9a4435e49a04df1c9e89ff0dfdf2.tar.bz2 | |
user: Add i.MX 7D MMC/SDCard driver
Close #3525.
Diffstat (limited to 'user/bsps/bsps-arm.rst')
| -rw-r--r-- | user/bsps/bsps-arm.rst | 8 |
1 files changed, 8 insertions, 0 deletions
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 ------- |