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fpga: zynq: Use helper function zynq_validate_bitstream

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Use helper function zynq_validate_bitstream so that the
code can be reused easily for different cases of dma transfer.

Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
This commit is contained in:
Siva Durga Prasad Paladugu
2014-03-13 11:57:34 +05:30
committed by Michal Simek
parent a0735a34f8
commit 3108185985
1 changed files with 25 additions and 7 deletions
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32
drivers/fpga/zynqpl.c
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@@ -320,20 +320,20 @@ static u32 *zynq_align_dma_buffer(u32 *buf, u32 len, u32 swap)
return buf; return buf;
} }
static int zynq_load(xilinx_desc *desc, const void *buf, size_t bsize) static int zynq_validate_bitstream(xilinx_desc *desc, const void *buf,
size_t bsize, u32 blocksize, u32 *swap,
u32 *partialbit)
{ {
unsigned long ts; /* Timestamp */
u32 partialbit = 0;
u32 isr_status, swap, diff;
u32 *buf_start; u32 *buf_start;
u32 diff;
/* Detect if we are going working with partial or full bitstream */ /* Detect if we are going working with partial or full bitstream */
if (bsize != desc->size) { if (bsize != desc->size) {
printf("%s: Working with partial bitstream\n", __func__); printf("%s: Working with partial bitstream\n", __func__);
partialbit = 1; *partialbit = 1;
} }
buf_start = check_data((u8 *)buf, blocksize, swap);
buf_start = check_data((u8 *)buf, bsize, &swap);
if (!buf_start) if (!buf_start)
return FPGA_FAIL; return FPGA_FAIL;
@@ -351,7 +351,25 @@ static int zynq_load(xilinx_desc *desc, const void *buf, size_t bsize)
return FPGA_FAIL; return FPGA_FAIL;
} }
if (zynq_dma_xfer_init(partialbit)) if (zynq_dma_xfer_init(*partialbit))
return FPGA_FAIL;
return 0;
}
static int zynq_load(xilinx_desc *desc, const void *buf, size_t bsize)
{
unsigned long ts; /* Timestamp */
u32 partialbit = 0;
u32 isr_status, swap;
/*
* send bsize inplace of blocksize as it was not a bitstream
* in chunks
*/
if (zynq_validate_bitstream(desc, buf, bsize, bsize, &swap,
&partialbit))
return FPGA_FAIL; return FPGA_FAIL;
buf = zynq_align_dma_buffer((u32 *)buf, bsize, swap); buf = zynq_align_dma_buffer((u32 *)buf, bsize, swap);