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[ARM] pxa: introduce plat-pxa for PXA common code and add DMA support

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1. introduce folder of 'arch/arm/plat-pxa' for common code across different
   PXA processor families

2. initially moved DMA code into plat-pxa

3. common code in <mach/dma.h> moved into <plat/dma.h>, new processors
   should implement its own <mach/dma.h>, provide the following required
   definitions and '#include <plat/dma.h>' in the end:

   - DMAC_REGS_VIRT for mapped virtual address of the DMA registers'
     physical I/O memory

Signed-off-by: Eric Miao <eric.miao@marvell.com>
This commit is contained in:
Eric Miao 2009-01-20 12:06:01 +08:00
commit bd5ce43323
9 changed files with 246 additions and 227 deletions
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