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author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2018-09-25 10:13:19 +0200 |
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committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2018-09-25 10:13:19 +0200 |
commit | bd25da88057e9a4435e49a04df1c9e89ff0dfdf2 (patch) | |
tree | daa1c733079c0f12ffd99ff5ed4c6dbfe382264a | |
parent | cec2f2c9cf4b71850087af7f9a83e951a3f2c773 (diff) |
user: Add i.MX 7D MMC/SDCard driver
Close #3525.
-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 ------- |