[PATCH v2 0/2] dw_dmac: repair driver for use with AVR32 (AP7000)
From: Hein Tibosch
Date: Thu Aug 30 2012 - 14:34:13 EST
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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