After some recent changes to dw_dmac, the driver got broken for the AVR32 platform for two reasons:
The accessors to i/o memory had become little-endian. The maximum transfer width on the memory side was increased from 32 to 64 bits. These patches repair the driver by: 1. making the endianness configurable through Kconfig, for AVR32 it will become big-endian 2. making the maximum memory transfer width configurable It can be set in the code within arch For non-avr32 (ARM) platforms, nothing has to be changed. Thanks to Viresh and Arnd for reviewing Hein Tibosch (2): dw_dmac: make driver endianness configurable dw_dmac: max_mem_width limits value for SRC/DST_TR_WID register drivers/dma/Kconfig | 8 ++++++++ drivers/dma/dw_dmac.c | 8 ++++++++ drivers/dma/dw_dmac_regs.h | 23 +++++++++++++++++++++++ include/linux/dw_dmac.h | 3 +++ 4 files changed, 42 insertions(+), 0 deletions(-) -- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
