diff options
author | Jan Glauber <jglauber@cavium.com> | 2017-03-30 17:31:24 +0200 |
---|---|---|
committer | Ulf Hansson <ulf.hansson@linaro.org> | 2017-04-24 21:42:09 +0200 |
commit | ba3869ff32e4a671b0f9baa73900f9e2bfeb0414 (patch) | |
tree | 7e0ff1b8aca3adae07e09c5b24d4017dd32d663c /net | |
parent | dt-bindings: mmc: Add Cavium SOCs MMC bindings (diff) | |
download | linux-ba3869ff32e4a671b0f9baa73900f9e2bfeb0414.tar.xz linux-ba3869ff32e4a671b0f9baa73900f9e2bfeb0414.zip |
mmc: cavium: Add core MMC driver for Cavium SOCs
This core driver will be used by a MIPS platform driver
or by an ARM64 PCI driver. The core driver implements the
mmc_host_ops and slot probe & remove functions.
Callbacks are provided to allow platform specific interrupt
enable and bus locking.
The host controller supports:
- up to 4 slots that can contain sd-cards or eMMC chips
- 1, 4 and 8 bit bus width
- SDR and DDR
- transfers up to 52 Mhz (might be less when multiple slots are used)
- DMA read/write
- multi-block read/write (but not stream mode)
Voltage is limited to 3.3v and shared for all slots (vmmc and vmmcq).
A global lock for all MMC devices is required because the host
controller is shared.
Signed-off-by: Jan Glauber <jglauber@cavium.com>
Signed-off-by: David Daney <david.daney@cavium.com>
Signed-off-by: Steven J. Hill <steven.hill@cavium.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'net')
0 files changed, 0 insertions, 0 deletions