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We have to use consistent code to be able to do coherent dma
function. In consistent code is used cache inhibit page mapping.
Xilinx reported that there is bug in Microblaze for WB and
d-cache_always use option. Microblaze 7.30.a should be first version
where is this bug removed.
Signed-off-by: Michal Simek <monstr@monstr.eu>
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I found several problems for ll_temac driver and on system with WB.
This early fix should fix it. I will clean this patch before I will add
it to mainline
Signed-off-by: Michal Simek <monstr@monstr.eu>
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I found several problems for ll_temac driver and on system with WB.
This early fix should fix it. I will clean this patch before I will add
it to mainline
Signed-off-by: Michal Simek <monstr@monstr.eu>
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There is necessary to do some cache handling for dma operations.
Signed-off-by: Michal Simek <monstr@monstr.eu>
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Add DMA support for Microblaze. There are some part of this new feature:
1. Basic DMA support
2. Enable DMA debug option
3. Setup notifier
Ad 1. dma-mapping come from powerpc and x86 version and it is based on
generic dma-mapping-common.h
Ad 2. DMA support debug features which is used in generic file.
For more information please look at Documentation/DMA-API.txt
Ad 3. notifier is very important to setup dma_ops. Without this part
for example ll_temac driver failed because there are no setup dma operations.
Signed-off-by: Michal Simek <monstr@monstr.eu>
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