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| author | Adrian Hunter <adrian.hunter@intel.com> | 2014-11-04 13:42:46 +0300 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2014-11-10 14:40:53 +0300 |
| commit | e57a5f61eae7e145aeeda18ccb22576822f534bf (patch) | |
| tree | 3ac10196b0713885f85d8fae054f3e867c19c77c /Kconfig | |
| parent | 0545230f1764bc639e14eea3fe944d9d16e91a92 (diff) | |
| download | linux-e57a5f61eae7e145aeeda18ccb22576822f534bf.tar.xz | |
mmc: sdhci: Add 64-bit ADMA support
Add 64-bit ADMA support including:
- add 64-bit ADMA descriptor
- add SDHCI_USE_64_BIT_DMA flag
- set upper 32-bits of DMA addresses
- ability to select 64-bit ADMA
- ability to use 64-bit ADMA sizes and alignment
- display "ADMA 64-bit" when host is added
It is assumed that a 64-bit capable device has set a 64-bit DMA mask
and *must* do 64-bit DMA. A driver has the opportunity to change
that during the first call to ->enable_dma(). Similarly
SDHCI_QUIRK2_BROKEN_64_BIT_DMA must be left to the drivers to
implement.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'Kconfig')
0 files changed, 0 insertions, 0 deletions