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| author | Nicolas Ferre <nicolas.ferre@atmel.com> | 2009-12-14 18:01:31 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-15 08:53:35 -0800 |
| commit | 74791a2dc8dc2af3feeaf3242d642ff58d33bd30 (patch) | |
| tree | 2062b23a6bd0063f4999e73bb0fb9bd22839ffb7 /drivers/mmc/host/bfin_sdh.c | |
| parent | 2635d1ba711560d521f6218c585a3e0401f566e1 (diff) | |
| download | op-kernel-dev-74791a2dc8dc2af3feeaf3242d642ff58d33bd30.zip op-kernel-dev-74791a2dc8dc2af3feeaf3242d642ff58d33bd30.tar.gz | |
mmc: atmel-mci: new MCI2 module support in atmel-mci driver
This new revision of the IP adds some improvements to the MCI already
present in several Atmel SOC.
Some new registers are added and a particular way of handling DMA
interaction lead to a new sequence in function call which is backward
compatible: On MCI2, we must set the DMAEN bit to enable the DMA
handshaking interface. This must happen before the data transfer command
is sent.
A new function is able to differentiate MCI2 code and is based on
knowledge of processor id (cpu_is_xxx()).
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/mmc/host/bfin_sdh.c')
0 files changed, 0 insertions, 0 deletions
