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-rw-r--r--usrp2/top/N2x0/u2plus_core.v21
-rw-r--r--usrp2/top/USRP2/u2_core.v23
2 files changed, 27 insertions, 17 deletions
diff --git a/usrp2/top/N2x0/u2plus_core.v b/usrp2/top/N2x0/u2plus_core.v
index 2c547a245..861b3833f 100644
--- a/usrp2/top/N2x0/u2plus_core.v
+++ b/usrp2/top/N2x0/u2plus_core.v
@@ -163,6 +163,7 @@ module u2plus_core
localparam SR_TX_CTRL = 144; // 6
localparam SR_TX_DSP = 160; // 5
+ localparam SR_GPIO = 184; // 5
localparam SR_UDP_SM = 192; // 64
// FIFO Sizes, 9 = 512 lines, 10 = 1024, 11 = 2048
@@ -227,7 +228,7 @@ module u2plus_core
.s1_addr(8'b0100_0000),.s1_mask(8'b1111_0000), // Packet Router (16-20K)
.s2_addr(8'b0101_0000),.s2_mask(8'b1111_1100), // SPI
.s3_addr(8'b0101_0100),.s3_mask(8'b1111_1100), // I2C
- .s4_addr(8'b0101_1000),.s4_mask(8'b1111_1100), // GPIO
+ .s4_addr(8'b0101_1000),.s4_mask(8'b1111_1100), // Unused
.s5_addr(8'b0101_1100),.s5_mask(8'b1111_1100), // Readback
.s6_addr(8'b0110_0000),.s6_mask(8'b1111_0000), // Ethernet MAC
.s7_addr(8'b0111_0000),.s7_mask(8'b1111_0000), // Settings Bus (only uses 1K)
@@ -277,6 +278,7 @@ module u2plus_core
.sf_dat_i(sf_dat_i),.sf_ack_i(sf_ack),.sf_err_i(0),.sf_rty_i(0));
// Unused Slaves 9, b, c
+ assign s4_ack = 0;
assign s9_ack = 0; assign sb_ack = 0; assign sc_ack = 0;
// ////////////////////////////////////////////////////////////////////////////////////////
@@ -419,18 +421,21 @@ module u2plus_core
assign s3_dat_i[31:8] = 24'd0;
// /////////////////////////////////////////////////////////////////////////
- // GPIOs -- Slave #4
+ // GPIOs
- nsgpio nsgpio(.clk_i(wb_clk),.rst_i(wb_rst),
- .cyc_i(s4_cyc),.stb_i(s4_stb),.adr_i(s4_adr[4:0]),.we_i(s4_we),
- .dat_i(s4_dat_o),.dat_o(s4_dat_i),.ack_o(s4_ack),
- .rx(run_rx0_d1 | run_rx1_d1), .tx(run_tx), .gpio({io_tx,io_rx}) );
+ wire [31:0] gpio_readback;
+
+ gpio_atr #(.BASE(SR_GPIO), .WIDTH(32))
+ gpio_atr(.clk(dsp_clk),.reset(dsp_rst),
+ .set_stb(set_stb_dsp),.set_addr(set_addr_dsp),.set_data(set_data_dsp),
+ .rx(run_rx0_d1 | run_rx1_d1), .tx(run_tx),
+ .gpio({io_tx,io_rx}), .gpio_readback(gpio_readback) );
// /////////////////////////////////////////////////////////////////////////
// Buffer Pool Status -- Slave #5
//compatibility number -> increment when the fpga has been sufficiently altered
- localparam compat_num = {16'd7, 16'd3}; //major, minor
+ localparam compat_num = {16'd8, 16'd0}; //major, minor
wb_readback_mux buff_pool_status
(.wb_clk_i(wb_clk), .wb_rst_i(wb_rst), .wb_stb_i(s5_stb),
@@ -438,7 +443,7 @@ module u2plus_core
.word00(32'b0),.word01(32'b0),.word02(32'b0),.word03(32'b0),
.word04(32'b0),.word05(32'b0),.word06(32'b0),.word07(32'b0),
- .word08(status),.word09(32'b0),.word10(vita_time[63:32]),
+ .word08(status),.word09(gpio_readback),.word10(vita_time[63:32]),
.word11(vita_time[31:0]),.word12(compat_num),.word13(irq),
.word14(vita_time_pps[63:32]),.word15(vita_time_pps[31:0])
);
diff --git a/usrp2/top/USRP2/u2_core.v b/usrp2/top/USRP2/u2_core.v
index 18bc50ac3..b4e17aa67 100644
--- a/usrp2/top/USRP2/u2_core.v
+++ b/usrp2/top/USRP2/u2_core.v
@@ -168,6 +168,7 @@ module u2_core
localparam SR_TX_CTRL = 144; // 6
localparam SR_TX_DSP = 160; // 5
+ localparam SR_GPIO = 184; // 5
localparam SR_UDP_SM = 192; // 64
// FIFO Sizes, 9 = 512 lines, 10 = 1024, 11 = 2048
@@ -233,7 +234,7 @@ module u2_core
.s1_addr(8'b0100_0000),.s1_mask(8'b1111_0000), // Packet Router (16-20K)
.s2_addr(8'b0101_0000),.s2_mask(8'b1111_1100), // SPI
.s3_addr(8'b0101_0100),.s3_mask(8'b1111_1100), // I2C
- .s4_addr(8'b0101_1000),.s4_mask(8'b1111_1100), // GPIO
+ .s4_addr(8'b0101_1000),.s4_mask(8'b1111_1100), // Unused
.s5_addr(8'b0101_1100),.s5_mask(8'b1111_1100), // Readback
.s6_addr(8'b0110_0000),.s6_mask(8'b1111_0000), // Ethernet MAC
.s7_addr(8'b0111_0000),.s7_mask(8'b1111_0000), // Settings Bus (only uses 1K)
@@ -282,7 +283,8 @@ module u2_core
.sf_dat_o(sf_dat_o),.sf_adr_o(sf_adr),.sf_sel_o(sf_sel),.sf_we_o(sf_we),.sf_cyc_o(sf_cyc),.sf_stb_o(sf_stb),
.sf_dat_i(sf_dat_i),.sf_ack_i(sf_ack),.sf_err_i(0),.sf_rty_i(0));
- // Unused Slaves 9 and b-f
+ // Unused Slaves 4, 9 and b-f
+ assign s4_ack = 0;
assign s9_ack = 0; assign sb_ack = 0; assign sc_ack = 0;
assign sd_ack = 0; assign se_ack = 0; assign fc_ack = 0;
@@ -425,18 +427,21 @@ module u2_core
assign s3_dat_i[31:8] = 24'd0;
// /////////////////////////////////////////////////////////////////////////
- // GPIOs -- Slave #4
+ // GPIOs
- nsgpio nsgpio(.clk_i(wb_clk),.rst_i(wb_rst),
- .cyc_i(s4_cyc),.stb_i(s4_stb),.adr_i(s4_adr[4:0]),.we_i(s4_we),
- .dat_i(s4_dat_o),.dat_o(s4_dat_i),.ack_o(s4_ack),
- .rx(run_rx0_d1 | run_rx1_d1), .tx(run_tx), .gpio({io_tx,io_rx}) );
+ wire [31:0] gpio_readback;
+
+ gpio_atr #(.BASE(SR_GPIO), .WIDTH(32))
+ gpio_atr(.clk(dsp_clk),.reset(dsp_rst),
+ .set_stb(set_stb_dsp),.set_addr(set_addr_dsp),.set_data(set_data_dsp),
+ .rx(run_rx0_d1 | run_rx1_d1), .tx(run_tx),
+ .gpio({io_tx,io_rx}), .gpio_readback(gpio_readback) );
// /////////////////////////////////////////////////////////////////////////
// Buffer Pool Status -- Slave #5
//compatibility number -> increment when the fpga has been sufficiently altered
- localparam compat_num = {16'd7, 16'd3}; //major, minor
+ localparam compat_num = {16'd8, 16'd0}; //major, minor
wb_readback_mux buff_pool_status
(.wb_clk_i(wb_clk), .wb_rst_i(wb_rst), .wb_stb_i(s5_stb),
@@ -444,7 +449,7 @@ module u2_core
.word00(32'b0),.word01(32'b0),.word02(32'b0),.word03(32'b0),
.word04(32'b0),.word05(32'b0),.word06(32'b0),.word07(32'b0),
- .word08(status),.word09(32'b0),.word10(vita_time[63:32]),
+ .word08(status),.word09(gpio_readback),.word10(vita_time[63:32]),
.word11(vita_time[31:0]),.word12(compat_num),.word13(irq),
.word14(vita_time_pps[63:32]),.word15(vita_time_pps[31:0])
);