Messages in this thread | | | Date | Fri, 31 Aug 2012 01:14:26 +0800 | From | Hein Tibosch <> | Subject | [PATCH v2 0/2] dw_dmac: repair driver for use with AVR32 (AP7000) |
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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. This led to undefined behavior on the avr32 platform.
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 all for reviewing
Hein Tibosch (2):
drivers/dma/Kconfig | 11 +++++++++++ drivers/dma/dw_dmac.c | 10 +++++++--- drivers/dma/dw_dmac_regs.h | 14 ++++++++++++++ include/linux/dw_dmac.h | 3 +++ 4 files changed, 35 insertions(+), 3 deletions(-)
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