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axi_dmac: fix synthesis warnings 

Separated the 2D transfer registers to a separate generate block
main
Laszlo Nagy 2018-03-06 07:54:46 +00:00 committed by István Csomortáni
parent c0184bce59
commit 5cba46165a
1 changed files with 42 additions and 15 deletions
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51
library/axi_dmac/axi_dmac.v
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@ -271,9 +271,9 @@ reg up_axis_xlast = 1'b1;
reg [DMA_AXI_ADDR_WIDTH-1:BYTES_PER_BEAT_WIDTH_DEST] up_dma_dest_address = 'h00;
reg [DMA_AXI_ADDR_WIDTH-1:BYTES_PER_BEAT_WIDTH_SRC] up_dma_src_address = 'h00;
reg [DMA_LENGTH_WIDTH-1:0] up_dma_x_length = 'h00;
reg [DMA_LENGTH_WIDTH-1:0] up_dma_y_length = 'h00;
reg [DMA_LENGTH_WIDTH-1:0] up_dma_src_stride = 'h00;
reg [DMA_LENGTH_WIDTH-1:0] up_dma_dest_stride = 'h00;
wire [DMA_LENGTH_WIDTH-1:0] up_dma_y_length_s;
wire [DMA_LENGTH_WIDTH-1:0] up_dma_src_stride_s;
wire [DMA_LENGTH_WIDTH-1:0] up_dma_dest_stride_s;
reg up_dma_cyclic = CYCLIC ? 1'b1 : 1'b0;
wire up_dma_sync_transfer_start = SYNC_TRANSFER_START ? 1'b1 : 1'b0;
@ -370,10 +370,7 @@ begin
up_pause <= 'h00;
up_dma_src_address <= 'h00;
up_dma_dest_address <= 'h00;
up_dma_y_length <= 'h00;
up_dma_x_length <= 'h00;
up_dma_dest_stride <= 'h00;
up_dma_src_stride <= 'h00;
up_irq_mask <= 2'b11;
up_dma_req_valid <= 1'b0;
up_scratch <= 'h00;
@ -404,6 +401,26 @@ begin
9'h104: up_dma_dest_address <= up_wdata[DMA_AXI_ADDR_WIDTH-1:BYTES_PER_BEAT_WIDTH_DEST];
9'h105: up_dma_src_address <= up_wdata[DMA_AXI_ADDR_WIDTH-1:BYTES_PER_BEAT_WIDTH_SRC];
9'h106: up_dma_x_length <= up_wdata[DMA_LENGTH_WIDTH-1:0];
endcase
end
end
end
generate
if (DMA_2D_TRANSFER == 1) begin
reg [DMA_LENGTH_WIDTH-1:0] up_dma_y_length = 'h00;
reg [DMA_LENGTH_WIDTH-1:0] up_dma_src_stride = 'h00;
reg [DMA_LENGTH_WIDTH-1:0] up_dma_dest_stride = 'h00;
always @(posedge s_axi_aclk)
begin
if (s_axi_aresetn == 1'b0) begin
up_dma_y_length <= 'h00;
up_dma_dest_stride <= 'h00;
up_dma_src_stride <= 'h00;
end else begin
if (up_wreq) begin
case (up_waddr)
9'h107: up_dma_y_length <= up_wdata[DMA_LENGTH_WIDTH-1:0];
9'h108: up_dma_dest_stride <= up_wdata[DMA_LENGTH_WIDTH-1:0];
9'h109: up_dma_src_stride <= up_wdata[DMA_LENGTH_WIDTH-1:0];
@ -411,6 +428,16 @@ begin
end
end
end
assign up_dma_y_length_s = up_dma_y_length;
assign up_dma_dest_stride_s = up_dma_dest_stride;
assign up_dma_src_stride_s = up_dma_src_stride;
end else begin
assign up_dma_y_length_s = 'h0;
assign up_dma_dest_stride_s = 'h0;
assign up_dma_src_stride_s = 'h0;
end
endgenerate
assign dbg_ids0 = {
{DBG_ID_PADDING{1'b0}}, dest_data_id,
@ -453,9 +480,9 @@ begin
9'h104: up_rdata <= HAS_DEST_ADDR ? {up_dma_dest_address,{BYTES_PER_BEAT_WIDTH_DEST{1'b0}}} : 'h00;
9'h105: up_rdata <= HAS_SRC_ADDR ? {up_dma_src_address,{BYTES_PER_BEAT_WIDTH_SRC{1'b0}}} : 'h00;
9'h106: up_rdata <= up_dma_x_length;
9'h107: up_rdata <= DMA_2D_TRANSFER ? up_dma_y_length : 'h00;
9'h108: up_rdata <= DMA_2D_TRANSFER ? up_dma_dest_stride : 'h00;
9'h109: up_rdata <= DMA_2D_TRANSFER ? up_dma_src_stride : 'h00;
9'h107: up_rdata <= DMA_2D_TRANSFER ? up_dma_y_length_s : 'h00;
9'h108: up_rdata <= DMA_2D_TRANSFER ? up_dma_dest_stride_s : 'h00;
9'h109: up_rdata <= DMA_2D_TRANSFER ? up_dma_src_stride_s : 'h00;
9'h10a: up_rdata <= up_transfer_done_bitmap;
9'h10b: up_rdata <= up_transfer_id_eot;
9'h10c: up_rdata <= 'h00; // Status
@ -518,9 +545,9 @@ dmac_2d_transfer #(
.req_dest_address(up_dma_dest_address),
.req_src_address(up_dma_src_address),
.req_x_length(up_dma_x_length),
.req_y_length(up_dma_y_length),
.req_dest_stride(up_dma_dest_stride),
.req_src_stride(up_dma_src_stride),
.req_y_length(up_dma_y_length_s),
.req_dest_stride(up_dma_dest_stride_s),
.req_src_stride(up_dma_src_stride_s),
.req_sync_transfer_start(up_dma_sync_transfer_start),
.out_req_valid(dma_req_valid),