Messages in this thread | | | From | Alim Akhtar <> | Subject | [PATCH V2 0/1] dmaengine/amba-pl08x: Add support for s3c64xx DMAC | Date | Wed, 28 Sep 2011 11:20:06 +0530 |
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This patch modifies the amba-pl08x driver for s3c64xx. The DMA controller of S3C64XX is a variant of PrimeCell pl080 DMAC. S3C64xx contents extra register to hold the TransferSize.
Below diagram explains the s3c64xx LLI structure and offsets. ----------------------------------------------------------------- | Offset | Contents | ----------------------------------------------------------------- | Next LLI Address | Source Address for Next xfer | ----------------------------------------------------------------- | Next LLI Address+0x04 | Destination Address for Next xfer | ----------------------------------------------------------------- | Next LLI Address+0x08 | Next LLI address for Next xfer | ----------------------------------------------------------------- | Next LLI Address+0x0c | DMACCxControl0 data for Next xfer | ----------------------------------------------------------------- | Next LLI Address+0x10 | DMACCxControl1 xfer size for Next xfer| -----------------------------------------------------------------
Changes since v1: - Rebased with "samsung_dma" branch of http://git.infradead.org/users/vkoul/slave-dma.git
- Addressed review comments from linus.walleij http://www.spinics.net/lists/arm-kernel/msg135411.html
Alim Akhtar (1): dmaengine/amba-pl08x: Add support for s3c64xx DMAC
drivers/dma/amba-pl08x.c | 135 ++++++++++++++++++++++++++++++++++++++-------- 1 files changed, 112 insertions(+), 23 deletions(-)
-- 1.7.2.3
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