u-boot.git/drivers/dma, branch v2011.09-rc2

fsl_dma: fix support for 83xx DMA engine

2011-07-07T00:09:27+00:00

Commit 359ec4931944adb885882deb9b781e4095eabc94 broke support for the
Freescale DMA engine on the 83xx parts. This is due to using registers
which do not exist on 83xx. Remove the attribute register accesses from
the 83xx build.

Signed-off-by: Ira W. Snyder 
Cc: York Sun 
Cc: Peter Tyser 
Cc: Kumar Gala 
Signed-off-by: Kim Phillips

Switch from archive libraries to partial linking

2010-11-17T20:02:18+00:00

Before this commit, weak symbols were not overridden by non-weak symbols
found in archive libraries when linking with recent versions of
binutils.  As stated in the System V ABI, "the link editor does not
extract archive members to resolve undefined weak symbols".

This commit changes all Makefiles to use partial linking (ld -r) instead
of creating library archives, which forces all symbols to participate in
linking, allowing non-weak symbols to override weak symbols as intended.
This approach is also used by Linux, from which the gmake function
cmd_link_o_target (defined in config.mk and used in all Makefiles) is
inspired.

The name of each former library archive is preserved except for
extensions which change from ".a" to ".o".  This commit updates
references accordingly where needed, in particular in some linker
scripts.

This commit reveals board configurations that exclude some features but
include source files that depend these disabled features in the build,
resulting in undefined symbols.  Known such cases include:
- disabling CMD_NET but not CMD_NFS;
- enabling CONFIG_OF_LIBFDT but not CONFIG_QE.

Signed-off-by: Sebastien Carlier

powerpc/8xxx: Fix dma for 36bit addressing

2010-08-31T16:23:15+00:00

Use more bits to support 36-bit addressing

Signed-off-by: York Sun 
Signed-off-by: Kumar Gala

ColdFire: Fix compile warning messages

2009-08-26T08:44:31+00:00

Change %08lX to %08X in board.c. Remove unused variable
'oscillator' in mcf5227x/cpu_init.c and 'scm2' in
mcf532x/cpu_init.c. Provide argument type cast in
drivers/dma/MCD_dmaApi.c.

Signed-off-by: TsiChung Liew

83xx: Add support for fsl_dma driver

2009-07-02T16:15:57+00:00

Signed-off-by: Peter Tyser 
Reviewed-by: Ira W. Snyder 
Tested-by: Ira W. Snyder 
Acked-by: Kim Phillips 
Signed-off-by: Kumar Gala

fsl_dma: Make DMA transactions snoopable

2009-07-02T04:12:05+00:00

Make DMA transactions snoopable so that CPUs can keep caches up-to-date.
This allows dma transactions to be used for operations such as memory
copies without any additional cache control operations.

Signed-off-by: Peter Tyser 
Signed-off-by: Kumar Gala

fsl_dma: Break out common memory initialization function

2009-07-02T04:12:01+00:00

Signed-off-by: Peter Tyser 
Signed-off-by: Kumar Gala

8xxx: Rename dma_xfer() to dmacpy()

2009-07-02T04:07:47+00:00

Also update dmacpy()'s argument order to match memcpy's and use
phys_addr_t/phy_size_t for address/size arguments

Signed-off-by: Peter Tyser 
Signed-off-by: Kumar Gala

fsl_dma: Fix Channel Start bug in dma_check()

2009-07-02T04:07:45+00:00

The Channel Start (CS) bit in the Mode Register (MR) should actually be
cleared as the comment in the code suggests.  Previously, CS was being
set, not cleared.

Assuming normal operation of the DMA engine, this change shouldn't have
any real affect.

Signed-off-by: Peter Tyser 
Signed-off-by: Kumar Gala

fsl_dma: Add support for arbitrarily large transfers

2009-07-02T04:07:43+00:00

Support DMA transfers larger than the DMA controller's limit of
(2 ^ 26 - 1) bytes

Signed-off-by: Peter Tyser 
Signed-off-by: Kumar Gala