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dmaengine: xilinx_dma: Fix 64-bit simple CDMA transfer

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In AXI CDMA simple mode also pass MSB bits of source and destination
address to xilinx_write function. This fixes simple CDMA operation
mode using 64-bit addressing.

Signed-off-by: Radhey Shyam Pandey <[email protected]>
Signed-off-by: Michal Simek <[email protected]>
Reviewed-by: Appana Durga Kedareswara Rao <[email protected]>
Signed-off-by: Vinod Koul <[email protected]>
This commit is contained in:
Radhey Shyam Pandey 2018-09-29 11:18:00 -06:00 • committed by Vinod Koul
commit 0e03aca265
1 changed files with 4 additions and 2 deletions
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6
drivers/dma/xilinx/xilinx_dma.c
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@ -1247,8 +1247,10 @@ static void xilinx_cdma_start_transfer(struct xilinx_dma_chan *chan)
hw = &segment->hw;
xilinx_write(chan, XILINX_CDMA_REG_SRCADDR, hw->src_addr);
xilinx_write(chan, XILINX_CDMA_REG_DSTADDR, hw->dest_addr);
xilinx_write(chan, XILINX_CDMA_REG_SRCADDR,
xilinx_prep_dma_addr_t(hw->src_addr));
xilinx_write(chan, XILINX_CDMA_REG_DSTADDR,
xilinx_prep_dma_addr_t(hw->dest_addr));
/* Start the transfer */
dma_ctrl_write(chan, XILINX_DMA_REG_BTT,