linux/drivers/mmc
Nicolas Pitre c783837bc6 pxamci: support arbitrary block size
The PXA has two transmit FIFOes, each32 byte deep.  when one FIFO is
full and the other one has been transmitted, they are automatically
swapped and DMA is triggered for another 32 byte burst.  However, when
there is less than 32 bytes left to send, the FIFO swap has to be done
manually. This is required for some SDIO transfers which are not
required to be multiples of 32 bytes.

A DMA completion interrupt is set for each descriptor which length isn't
a multiple of 32 in order to force the FIFO swap.  While at it, the DMA
interrupt handler has been made a bit more resilient against errors.

Signed-off-by: Nicolas Pitre <nico@marvell.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-10-10 20:13:29 +02:00
..
card MMC/SD card driver learns SPI 2007-09-23 21:39:47 +02:00
core sdio: make the IRQ thread more resilient in the presence of bad states 2007-10-06 17:51:45 +02:00
host pxamci: support arbitrary block size 2007-10-10 20:13:29 +02:00
Kconfig [S390] Kconfig: menus with depends on HAS_IOMEM. 2007-05-10 15:46:07 +02:00
Makefile mmc: Move core functions to subdir 2007-05-01 13:04:18 +02:00