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up_adc_common: Added clock enable control for the ADC cores

main
Adrian Costina 2017-04-07 14:25:28 +03:00 committed by Lars-Peter Clausen
parent 4e0d68fde8
commit 2296ef5882
1 changed files with 44 additions and 37 deletions
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9
library/common/up_adc_common.v
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@ -67,6 +67,7 @@ module up_adc_common #(
input [31:0] adc_clk_ratio,
output [31:0] adc_start_code,
output adc_sync,
output reg up_adc_ce,
// channel interface
@ -114,6 +115,7 @@ module up_adc_common #(
reg up_mmcm_preset = 'd1;
reg up_wack_int = 'd0;
reg [31:0] up_scratch = 'd0;
reg up_adc_ce_int = 'd0;
reg up_mmcm_resetn = 'd0;
reg up_resetn = 'd0;
reg up_adc_sync = 'd0;
@ -151,16 +153,19 @@ module up_adc_common #(
assign up_wreq_s = (up_waddr[13:8] == COMMON_ID) ? up_wreq : 1'b0;
assign up_rreq_s = (up_raddr[13:8] == COMMON_ID) ? up_rreq : 1'b0;
// processor write interface
assign up_wack = up_wack_int;
always @(negedge up_rstn or posedge up_clk) begin
if (up_rstn == 0) begin
up_adc_ce <= 1'd1;
up_core_preset <= 1'd1;
up_mmcm_preset <= 1'd1;
up_wack_int <= 'd0;
up_scratch <= 'd0;
up_adc_ce_int <= 'd0;
up_mmcm_resetn <= 'd0;
up_resetn <= 'd0;
up_adc_sync <= 'd0;
@ -170,11 +175,13 @@ module up_adc_common #(
end else begin
up_core_preset <= ~up_resetn;
up_mmcm_preset <= ~up_mmcm_resetn;
up_adc_ce <= ~up_adc_ce_int;
up_wack_int <= up_wreq_s;
if ((up_wreq_s == 1'b1) && (up_waddr[7:0] == 8'h02)) begin
up_scratch <= up_wdata;
end
if ((up_wreq_s == 1'b1) && (up_waddr[7:0] == 8'h10)) begin
up_adc_ce_int <= up_wdata[2];
up_mmcm_resetn <= up_wdata[1];
up_resetn <= up_wdata[0];
end
@ -340,7 +347,7 @@ module up_adc_common #(
8'h01: up_rdata_int <= ID;
8'h02: up_rdata_int <= up_scratch;
8'h03: up_rdata_int <= CONFIG;
8'h10: up_rdata_int <= {30'd0, up_mmcm_resetn, up_resetn};
8'h10: up_rdata_int <= {29'd0, up_adc_ce_int, up_mmcm_resetn, up_resetn};
8'h11: up_rdata_int <= {28'd0, up_adc_sync, up_adc_r1_mode, up_adc_ddr_edgesel, up_adc_pin_mode};
8'h15: up_rdata_int <= up_adc_clk_count_s;
8'h16: up_rdata_int <= adc_clk_ratio;