Commit 6176aa7b authored by Andrey Filippov's avatar Andrey Filippov

fixed DCI and ODT for all tested modes

parent 01028931
......@@ -56,77 +56,77 @@
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......@@ -41,14 +41,19 @@ module ddrc_control #(
parameter WBUF_DELAY_REL_MASK = 'h3ff, // address mask to set extra delay
parameter PAGES_REL = 'h023, // address to set buffer pages {port1_page[1:0],port1_int_page[1:0],port0_page[1:0],port0_int_page[1:0]}
parameter PAGES_REL_MASK = 'h3ff, // address mask to set DQM and DQS patterns
parameter CMDA_EN_REL = 'h024, // address to enable('h823)/disable('h822) command/address outputs
parameter CMDA_EN_REL = 'h024, // address to enable('h825)/disable('h824) command/address outputs
parameter CMDA_EN_REL_MASK = 'h3fe, // address mask for command/address outputs
parameter SDRST_ACT_REL = 'h026, // address to activate('h825)/deactivate('h8242) active-low reset signal to DDR3 memory
parameter SDRST_ACT_REL = 'h026, // address to activate('h827)/deactivate('h826) active-low reset signal to DDR3 memory
parameter SDRST_ACT_REL_MASK = 'h3fe, // address mask for reset DDR3
parameter CKE_EN_REL = 'h028, // address to enable('h827)/disable('h826) CKE signal to memory
parameter CKE_EN_REL = 'h028, // address to enable('h829)/disable('h828) CKE signal to memory
parameter CKE_EN_REL_MASK = 'h3fe, // address mask for command/address outputs
parameter EXTRA_REL = 'h02a, // address to set extra parameters (currently just inv_clk_div)
parameter DCI_RST_REL = 'h02a, // address to activate('h82b)/deactivate('h82a) Zynq DCI calibrate circuitry
parameter DCI_RST_REL_MASK = 'h3fe, // address mask for DCI calibrate circuitry
parameter DLY_RST_REL = 'h02c, // address to activate('h82d)/deactivate('h82c) delay calibration circuitry
parameter DLY_RST_REL_MASK = 'h3fe, // address mask for delay calibration circuitry
parameter EXTRA_REL = 'h02e, // address to set extra parameters (currently just inv_clk_div)
parameter EXTRA_REL_MASK = 'h3ff // address mask for extra parameters
)(
input clk,
input mclk,
......@@ -73,6 +78,8 @@ module ddrc_control #(
// control: additional signals
output cmda_en, // tri-state all command and address lines to DDR chip
output ddr_rst, // generate DDR3 memory reset signal
output dci_rst, // active high - reset DCI circuitry
output dly_rst, // active high - delay calibration circuitry
output ddr_cke, // control DDR3 memory CKE signal
output inv_clk_div, // invert clk_div to ISERDES
......@@ -118,6 +125,13 @@ module ddrc_control #(
localparam SDRST_ACT_ADDR = CONTROL_ADDR | SDRST_ACT_REL; // address to activate('h825)/deactivate('h8242) active-low reset signal to DDR3 memory
localparam SDRST_ACT_ADDR_MASK =CONTROL_ADDR_MASK | SDRST_ACT_REL_MASK; // address mask for reset DDR3
localparam DCI_RST_ADDR = CONTROL_ADDR | DCI_RST_REL; // address to activate/deactivate Zynq DCI calibrate circuitry
localparam DCI_RST_ADDR_MASK = CONTROL_ADDR_MASK | DCI_RST_REL_MASK; // address mask for DCI calibrate circuitry
localparam DLY_RST_ADDR = CONTROL_ADDR | DLY_RST_REL; // address to activate/deactivate delay calibration circuitry
localparam DLY_RST_ADDR_MASK = CONTROL_ADDR_MASK | DLY_RST_REL_MASK; // address mask for delay calibration circuitry
localparam CKE_EN_ADDR = CONTROL_ADDR | CKE_EN_REL; // address to enable('h827)/disable('h826) CKE signal to memory
localparam CKE_EN_ADDR_MASK = CONTROL_ADDR_MASK | CKE_EN_REL_MASK; // address mask for CKE
......@@ -147,6 +161,8 @@ module ddrc_control #(
reg [ 1:0] port1_int_page_r; // port 1 PHY-side buffer read page (to be controlled by arbiter later, set to 2'b0)
reg cmda_en_r; // enable (tri-state off) all command and address lines to DDR chip
reg ddr_rst_r; // generate DDR3 memory reset
reg dci_rst_r; // active high - reset DCI circuitry
reg dly_rst_r; // active high - reset delay calibration circuitry
reg ddr_cke_r; // enable CKE to memory
reg inv_clk_div_r; // invert clk_div to ISERDES
......@@ -179,7 +195,10 @@ module ddrc_control #(
assign port1_page = port1_page_r[1:0];
assign port1_int_page = port1_int_page_r[1:0];
assign cmda_en = cmda_en_r;
assign ddr_rst= ddr_rst_r;
assign ddr_rst = ddr_rst_r;
assign dci_rst = dci_rst_r;
assign dly_rst = dly_rst_r;
assign ddr_cke= ddr_cke_r;
assign inv_clk_div = inv_clk_div_r;
......@@ -235,6 +254,16 @@ module ddrc_control #(
else if (fifo_re && (((waddr_fifo_out ^ SDRST_ACT_ADDR) & SDRST_ACT_ADDR_MASK)==0))
ddr_rst_r <= waddr_fifo_out[0];
if (rst) dci_rst_r <= 1'b0; // reset DCI circuitry off (it is ORed with rst later)
else if (fifo_re && (((waddr_fifo_out ^ DCI_RST_ADDR) & DCI_RST_ADDR_MASK)==0))
dci_rst_r <= waddr_fifo_out[0];
if (rst) dly_rst_r <= 1'b0; // reset DCI circuitry off (it is ORed with rst later)
else if (fifo_re && (((waddr_fifo_out ^ DLY_RST_ADDR) & DLY_RST_ADDR_MASK)==0))
dly_rst_r <= waddr_fifo_out[0];
if (rst) ddr_cke_r <= 1'b0;
else if (fifo_re && (((waddr_fifo_out ^ CKE_EN_ADDR) & CKE_EN_ADDR_MASK)==0))
ddr_cke_r <= waddr_fifo_out[0];
......
......@@ -83,13 +83,17 @@ module ddrc_test01 #(
parameter WBUF_DELAY_REL_MASK = 'h3ff, // address mask to set extra delay
parameter PAGES_REL = 'h023, // address to set buffer pages {port1_page[1:0],port1_int_page[1:0],port0_page[1:0],port0_int_page[1:0]}
parameter PAGES_REL_MASK = 'h3ff, // address mask to set DQM and DQS patterns
parameter CMDA_EN_REL = 'h024, // address to enable('h823)/disable('h822) command/address outputs
parameter CMDA_EN_REL = 'h024, // address to enable('h825)/disable('h824) command/address outputs
parameter CMDA_EN_REL_MASK = 'h3fe, // address mask for command/address outputs
parameter SDRST_ACT_REL = 'h026, // address to activate('h825)/deactivate('h8242) active-low reset signal to DDR3 memory
parameter SDRST_ACT_REL = 'h026, // address to activate('h827)/deactivate('h826) active-low reset signal to DDR3 memory
parameter SDRST_ACT_REL_MASK = 'h3fe, // address mask for reset DDR3
parameter CKE_EN_REL = 'h028, // address to enable('h827)/disable('h826) CKE signal to memory
parameter CKE_EN_REL = 'h028, // address to enable('h829)/disable('h828) CKE signal to memory
parameter CKE_EN_REL_MASK = 'h3fe, // address mask for command/address outputs
parameter EXTRA_REL = 'h02a, // address to set extra parameters (currently just inv_clk_div)
parameter DCI_RST_REL = 'h02a, // address to activate('h82b)/deactivate('h82a) Zynq DCI calibrate circuitry
parameter DCI_RST_REL_MASK = 'h3fe, // address mask for DCI calibrate circuitry
parameter DLY_RST_REL = 'h02a, // address to activate('h82d)/deactivate('h82c) delay calibration circuitry
parameter DLY_RST_REL_MASK = 'h3fe, // address mask for delay calibration circuitry
parameter EXTRA_REL = 'h02e, // address to set extra parameters (currently just inv_clk_div)
parameter EXTRA_REL_MASK = 'h3ff // address mask for extra parameters
)(
// DDR3 interface
......@@ -225,6 +229,11 @@ module ddrc_test01 #(
// additional control signals
wire cmda_en; // enable DDR3 memory control and addreee outputs
wire ddr_rst; // generate DDR3 memory reset (active hight)
wire dci_rst; // active high - reset DCI circuitry
wire dly_rst; // active high - reset delay calibration circuitry
wire ddr_cke; // control of the DDR3 memory CKE signal
wire inv_clk_div; // input
......@@ -384,6 +393,10 @@ BUFG bufg_axi_aclk_i (.O(axi_aclk),.I(fclk[0]));
.SDRST_ACT_REL_MASK(SDRST_ACT_REL_MASK),
.CKE_EN_REL (CKE_EN_REL),
.CKE_EN_REL_MASK (CKE_EN_REL_MASK),
.DCI_RST_REL (DCI_RST_REL),
.DCI_RST_REL_MASK (DCI_RST_REL_MASK),
.DLY_RST_REL (DLY_RST_REL),
.DLY_RST_REL_MASK (DLY_RST_REL_MASK),
.EXTRA_REL (EXTRA_REL),
.EXTRA_REL_MASK (EXTRA_REL_MASK)
) ddrc_control_i (
......@@ -405,6 +418,8 @@ BUFG bufg_axi_aclk_i (.O(axi_aclk),.I(fclk[0]));
.dly_set (set), // output
.cmda_en (cmda_en), // output
.ddr_rst (ddr_rst), // output
.dci_rst (dci_rst), // output
.dly_rst (dly_rst), // output
.ddr_cke (ddr_cke), // output
.inv_clk_div (inv_clk_div), // output
.dqs_pattern (dqs_pattern[7:0]), // output[7:0]
......@@ -532,6 +547,8 @@ BUFG bufg_axi_aclk_i (.O(axi_aclk),.I(fclk[0]));
.port1_data (axiwr_bram_wdata[31:0]), // input[31:0]
.cmda_en (cmda_en), // input
.ddr_rst (ddr_rst), // input
.dci_rst (dci_rst), // input
.dly_rst (dly_rst), // input
.ddr_cke (ddr_cke), // input
.inv_clk_div (inv_clk_div), // input
.dqs_pattern (dqs_pattern), // input[7:0]
......
[*]
[*] GTKWave Analyzer v3.3.49 (w)1999-2013 BSI
[*] Sun Jun 1 23:19:02 2014
[*] Mon Jun 2 06:48:00 2014
[*]
[dumpfile] "/data/vdt/vdt-projects/eddr3/simulation/ddrc_test01_testbench-20140601171040635.lxt"
[dumpfile_mtime] "Sun Jun 1 23:14:06 2014"
[dumpfile_size] 76198101
[dumpfile] "/data/vdt/vdt-projects/eddr3/simulation/ddrc_test01_testbench-20140602003755521.lxt"
[dumpfile_mtime] "Mon Jun 2 06:40:41 2014"
[dumpfile_size] 76024228
[savefile] "/data/vdt/vdt-projects/eddr3/ddrc_test01_testbench.sav"
[timestart] 116772900
[timestart] 102360000
[size] 1920 1180
[pos] 0 108
*-16.459938 116901250 114486875 114489375 114571875 114574375 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
*-22.533184 131161875 114486875 114489375 114571875 114574375 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
[treeopen] ddrc_test01_testbench.
[treeopen] ddrc_test01_testbench.ddrc_test01_i.
[treeopen] ddrc_test01_testbench.ddrc_test01_i.axibram_read_i.
[treeopen] ddrc_test01_testbench.ddrc_test01_i.axibram_write_i.
[treeopen] ddrc_test01_testbench.ddrc_test01_i.ddrc_control_i.
[treeopen] ddrc_test01_testbench.ddrc_test01_i.ddrc_sequencer_i.
[treeopen] ddrc_test01_testbench.ddrc_test01_i.ddrc_sequencer_i.phy_cmd_i.
[treeopen] ddrc_test01_testbench.ddrc_test01_i.ddrc_sequencer_i.phy_cmd_i.phy_top_i.
[treeopen] ddrc_test01_testbench.ddrc_test01_i.ddrc_sequencer_i.phy_cmd_i.phy_top_i.byte_lane0_i.dq_block[0].
[treeopen] ddrc_test01_testbench.ddrc_test01_i.ddrc_sequencer_i.phy_cmd_i.phy_top_i.byte_lane0_i.dq_block[0].dq_i.
......@@ -36,9 +37,9 @@
[treeopen] ddrc_test01_testbench.simul_axi_master_rdaddr_i.
[treeopen] ddrc_test01_testbench.simul_axi_master_wraddr_i.
[sst_width] 334
[signals_width] 407
[signals_width] 403
[sst_expanded] 1
[sst_vpaned_height] 820
[sst_vpaned_height] 755
@28
ddrc_test01_testbench.RST[0]
ddrc_test01_testbench.CLK[0]
......@@ -1306,8 +1307,12 @@ ddrc_test01_testbench.ddrc_test01_i.ddrc_sequencer_i.set[0]
-ddrc_sequencer
@800200
-ddr_sequencer_i_selected
@c00200
-tristate_control
@28
ddrc_test01_testbench.ddrc_test01_i.ddrc_sequencer_i.SDODT[0]
ddrc_test01_testbench.ddrc_test01_i.ddrc_sequencer_i.phy_cmd_i.phy_top_i.byte_lane0_i.dci_disable_dqs[0]
ddrc_test01_testbench.ddrc_test01_i.ddrc_sequencer_i.phy_cmd_i.phy_top_i.byte_lane0_i.dci_disable_dq[0]
ddrc_test01_testbench.ddrc_test01_i.ddrc_sequencer_i.phy_cmd_i.phy_dci_in[0]
@22
ddrc_test01_testbench.ddrc_test01_i.ddrc_control_i.dqs_tri_pattern_r[15:0]
@28
......@@ -1332,7 +1337,7 @@ ddrc_test01_testbench.ddrc_test01_i.ddrc_sequencer_i.phy_cmd_i.phy_dq_tri_in[0]
ddrc_test01_testbench.ddrc_test01_i.ddrc_sequencer_i.phy_cmd_i.phy_dq_tri[7:0]
@28
ddrc_test01_testbench.ddrc_test01_i.ddrc_sequencer_i.phy_cmd_i.phy_top_i.byte_lane0_i.dq_block[0].dq_i.iobufs_dqs_i.T[0]
@1401200
@1000200
-tristate_control
@28
ddrc_test01_testbench.ddrc_test01_i.ddrc_sequencer_i.phy_cmd_i.phy_top_i.sdclk[0]
......@@ -1391,7 +1396,7 @@ ddrc_test01_testbench.ddrc_test01_i.ddrc_sequencer_i.cmd0_clk[0]
ddrc_test01_testbench.ddrc_test01_i.ddrc_sequencer_i.cmd0_data[31:0]
@28
ddrc_test01_testbench.ddrc_test01_i.ddrc_sequencer_i.cmd0_we[0]
@23
@22
ddrc_test01_testbench.ddrc_test01_i.ddrc_sequencer_i.cmd_addr[9:0]
@800028
ddrc_test01_testbench.ddrc_test01_i.ddrc_sequencer_i.cmd_busy[2:0]
......@@ -1822,7 +1827,7 @@ ddrc_test01_testbench.ddrc_test01_i.axibram_write_i.wdata_i.we[0]
ddrc_test01_testbench.ddrc_test01_i.axibram_write_i.wdata_i.wem[0]
@1401200
-wdata_i
@800200
@c00200
-axibram_read_i
@28
ddrc_test01_testbench.ddrc_test01_i.axibram_read_i.aclk[0]
......@@ -1922,7 +1927,7 @@ ddrc_test01_testbench.SIMUL_AXI_FULL[0]
ddrc_test01_testbench.rstb[0]
@200
-
@1000200
@1401200
-axibram_read_i
@c00200
-ddrc_status
......
......@@ -42,7 +42,7 @@ module ddrc_test01_testbench #(
parameter CLKFBOUT_MULT_REF = 9, // Fvco=Fclkin*CLKFBOUT_MULT_F/DIVCLK_DIVIDE, Fout=Fvco/CLKOUT#_DIVIDE
parameter CLKFBOUT_DIV_REF = 3, // To get 300MHz for the reference clock
`endif
parameter DIVCLK_DIVIDE= 1, // | 3
parameter DIVCLK_DIVIDE= 1, //
parameter CLKFBOUT_PHASE = 0.000,
parameter SDCLK_PHASE = 0.000,
parameter CLK_PHASE = 0.000,
......@@ -83,14 +83,18 @@ module ddrc_test01_testbench #(
parameter WBUF_DELAY_REL_MASK = 'h3ff, // address mask to set extra delay
parameter PAGES_REL = 'h023, // address to set buffer pages {port1_page[1:0],port1_int_page[1:0],port0_page[1:0],port0_int_page[1:0]}
parameter PAGES_REL_MASK = 'h3ff, // address mask to set DQM and DQS patterns
parameter CMDA_EN_REL = 'h024, // address to enable('h823)/disable('h822) command/address outputs
parameter CMDA_EN_REL = 'h024, // address to enable('h825)/disable('h824) command/address outputs
parameter CMDA_EN_REL_MASK = 'h3fe, // address mask for command/address outputs
parameter SDRST_ACT_REL = 'h026, // address to activate('h825)/deactivate('h8242) active-low reset signal to DDR3 memory
parameter SDRST_ACT_REL = 'h026, // address to activate('h827)/deactivate('h826) active-low reset signal to DDR3 memory
parameter SDRST_ACT_REL_MASK = 'h3fe, // address mask for reset DDR3
parameter CKE_EN_REL = 'h028, // address to enable('h827)/disable('h826) CKE signal to memory
parameter CKE_EN_REL = 'h028, // address to enable('h829)/disable('h828) CKE signal to memory
parameter CKE_EN_REL_MASK = 'h3fe, // address mask for command/address outputs
parameter EXTRA_REL = 'h02a, // address to set extra parameters (currently just inv_clk_div)
parameter EXTRA_REL_MASK = 'h3ff, // address mask for extra parameters
parameter DCI_RST_REL = 'h02a, // address to activate('h82b)/deactivate('h82a) Zynq DCI calibrate circuitry
parameter DCI_RST_REL_MASK = 'h3fe, // address mask for DCI calibrate circuitry
parameter DLY_RST_REL = 'h02a, // address to activate('h82d)/deactivate('h82c) delay calibration circuitry
parameter DLY_RST_REL_MASK = 'h3fe, // address mask for delay calibration circuitry
parameter EXTRA_REL = 'h02e, // address to set extra parameters (currently just inv_clk_div)
parameter EXTRA_REL_MASK = 'h3ff, // address mask for extra parameters
// simulation-specific parameters
parameter integer AXI_RDADDR_LATENCY=2,
......@@ -127,9 +131,15 @@ module ddrc_test01_testbench #(
localparam BASEADDR_PAGES = BASEADDR_CTRL | (PAGES_REL<<2); // 'h023, address to set buffer pages {port1_page[1:0],port1_int_page[1:0],port0_page[1:0],port0_int_page[1:0]}
localparam BASEADDR_CMDA_EN = BASEADDR_CTRL | (CMDA_EN_REL<<2); // 'h024, address to enable('h825)/disable('h824) command/address outputs
localparam BASEADDR_SDRST_ACT = BASEADDR_CTRL | (SDRST_ACT_REL<<2); // 'h026 address to activate('h827)/deactivate('h826) active-low reset signal to DDR3 memory
localparam BASEADDR_CKE_EN = BASEADDR_CTRL | (CKE_EN_REL<<2); // 'h028
localparam BASEADDR_CKE_EN = BASEADDR_CTRL | (CKE_EN_REL<<2); // 'h028
// SuppressWarnings VEditor
localparam BASEADDR_DCI_RST = BASEADDR_CTRL | (DCI_RST_REL<<2); // 'h02a (+1 - enable)
// SuppressWarnings VEditor
localparam BASEADDR_DLY_RST = BASEADDR_CTRL | (DLY_RST_REL<<2); // 'h02c (+1 - enable)
// SuppressWarnings VEditor
localparam BASEADDR_EXTRA = BASEADDR_CTRL | (EXTRA_REL<<2); // 'h02a, address to set extra parameters (currently just inv_clk_div)
localparam BASEADDR_EXTRA = BASEADDR_CTRL | (EXTRA_REL<<2); // 'h02e, address to set extra parameters (currently just inv_clk_div)
localparam BASEADDRESS_LANE0_ODELAY = BASEADDR_DLY_LD;
localparam BASEADDRESS_LANE0_IDELAY = BASEADDR_DLY_LD+('h10<<2);
......@@ -583,9 +593,12 @@ assign bresp= ddrc_test01_i.ps7_i.MAXIGP0BRESP;
.SDRST_ACT_REL_MASK (SDRST_ACT_REL_MASK),
.CKE_EN_REL (CKE_EN_REL),
.CKE_EN_REL_MASK (CKE_EN_REL_MASK),
.DCI_RST_REL (DCI_RST_REL),
.DCI_RST_REL_MASK (DCI_RST_REL_MASK),
.DLY_RST_REL (DLY_RST_REL),
.DLY_RST_REL_MASK (DLY_RST_REL_MASK),
.EXTRA_REL (EXTRA_REL),
.EXTRA_REL_MASK (EXTRA_REL_MASK)
) ddrc_test01_i (
.SDRST (SDRST), // DDR3 reset (active low)
.SDCLK (SDCLK), // output
......@@ -1070,7 +1083,7 @@ simul_axi_read simul_axi_read_i(
@(posedge CLK)
axi_write_single(cmd_addr, data);
cmd_addr <= cmd_addr + 4;
data <= encode_seq_skip(5,0); // tMOD
data <= encode_seq_skip(5,0,0,0); // tMOD
@(posedge CLK)
axi_write_single(cmd_addr, data);
cmd_addr <= cmd_addr + 4;
......@@ -1201,7 +1214,7 @@ simul_axi_read simul_axi_read_i(
axi_write_single(cmd_addr, data);
cmd_addr <= cmd_addr + 4;
data <= encode_seq_skip(2,0); // tWR = 15ns (6 cycles for 2.5ns) from end of write (not write command)
data <= encode_seq_skip(2,0,1,0); // keep dci enabled
@(posedge CLK)
axi_write_single(cmd_addr, data);
cmd_addr <= cmd_addr + 4;
......@@ -1218,19 +1231,37 @@ simul_axi_read simul_axi_read_i(
1'b0, // phy_dq_en_in;
1'b0, // phy_dqs_en_in;
1'b0, // phy_dqs_toggle_en;
1'b0, // phy_dci_en_in; // DCI disable, both DQ and DQS lines (internal logic and timing sequencer for 0->1 and 1->0)
1'b1, // phy_dci_en_in; // DCI disable, both DQ and DQS lines (internal logic and timing sequencer for 0->1 and 1->0)
1'b0, // phy_buf_wr; // connect to external buffer
1'b0, // phy_buf_rd; // connect to external buffer
1'b0); // add NOP after the current command, keep other data
@(posedge CLK)
axi_write_single(cmd_addr, data);
cmd_addr <= cmd_addr + 4;
data <= encode_seq_skip(5,0); // tMOD
data <= encode_seq_skip(5,0,1,0 ); // tMOD (keep DCI enabled)
@(posedge CLK)
axi_write_single(cmd_addr, data);
cmd_addr <= cmd_addr + 4;
// Turn off DCI
data <= encode_seq_word(
15'h0, // [14:0] phy_addr_in;
mr3_norm[17:15], // [ 2:0] phy_bank_in; //TODO: debug!
3'b000, // [ 2:0] phy_rcw_in; // {ras,cas,we}, positive
1'b0, // phy_odt_in; // may be optimized?
1'b0, // phy_cke_inv; // may be optimized?
1'b0, // phy_sel_in == 1;
1'b0, // phy_dq_en_in;
1'b0, // phy_dqs_en_in;
1'b0, // phy_dqs_toggle_en;
1'b0, // phy_dci_en_in;
1'b0, // phy_buf_wr; // connect to external buffer
1'b0, // phy_buf_rd; // connect to external buffer
1'b0); // add NOP after the current command, keep other data
@(posedge CLK)
axi_write_single(cmd_addr, data);
cmd_addr <= cmd_addr + 4;
data <= encode_seq_skip(0,1); // end of sequence
data <= encode_seq_skip(0,1,0,0); // end of sequence (no dci, no odt)
@(posedge CLK)
axi_write_single(cmd_addr, data);
cmd_addr <= cmd_addr + 4;
......@@ -1268,7 +1299,7 @@ simul_axi_read simul_axi_read_i(
axi_write_single(cmd_addr, data);
cmd_addr <= cmd_addr + 4;
// see if pause is needed . See when buffer read should be started - maybe before WR command
data <= encode_seq_skip(1,0); // tRCD
data <= encode_seq_skip(1,0,0,0);
@(posedge CLK)
axi_write_single(cmd_addr, data);
cmd_addr <= cmd_addr + 4;
......@@ -1398,12 +1429,13 @@ simul_axi_read simul_axi_read_i(
@(posedge CLK)
axi_write_single(cmd_addr, data);
cmd_addr <= cmd_addr + 4;
data <= encode_seq_skip(2,0); // tWR = 15ns (6 cycles for 2.5ns) from end of write (not write command)
// tRTP = 4*tCK is already satisfied, no skip here
/*
data <= encode_seq_skip(1,0,1,0); // keep DCI // What delay is needed tRTP (4 tCK or 7.5ns)
@(posedge CLK)
axi_write_single(cmd_addr, data);
cmd_addr <= cmd_addr + 4;
*/
// precharge
data <= {
ra[14:0],
......@@ -1415,7 +1447,7 @@ simul_axi_read simul_axi_read_i(
1'b0, // phy_dq_en_in, //phy_dq_tri_in, // tristate DQ lines (internal timing sequencer for 0->1 and 1->0)
1'b0, // phy_dqs_en_in, // tristate DQS lines (internal timing sequencer for 0->1 and 1->0)
1'b0, // phy_dqs_toggle_en;
1'b0, // phy_dci_en_in, //phy_dci_in, // DCI disable, both DQ and DQS lines (internal logic and timing sequencer for 0->1 and 1->0)
1'b1, // phy_dci_en_in, // keep DCI enabled
1'b0, // phy_buf_wr, // connect to external buffer (but only if not paused)
1'b0, // phy_buf_rd, // connect to external buffer (but only if not paused)
1'b0, // add NOP after the current command, keep other data
......@@ -1425,12 +1457,12 @@ simul_axi_read simul_axi_read_i(
axi_write_single(cmd_addr, data);
cmd_addr <= cmd_addr + 4;
data <= encode_seq_skip(2,0); //
data <= encode_seq_skip(2,0,1,0); // keep DCI
@(posedge CLK)
axi_write_single(cmd_addr, data);
cmd_addr <= cmd_addr + 4;
data <= encode_seq_skip(0,1); // end of sequence
data <= encode_seq_skip(0,1,0,0); // end of sequence . TODO: verify DCI is disabled here - yes, OK
@(posedge CLK)
axi_write_single(cmd_addr, data);
cmd_addr <= cmd_addr + 4;
......@@ -1468,7 +1500,7 @@ simul_axi_read simul_axi_read_i(
axi_write_single(cmd_addr, data);
cmd_addr <= cmd_addr + 4;
// see if pause is needed . See when buffer read should be started - maybe before WR command
data <= encode_seq_skip(1,0); // tRCD
data <= encode_seq_skip(1,0,0,0); // tRCD
@(posedge CLK)
axi_write_single(cmd_addr, data);
cmd_addr <= cmd_addr + 4;
......@@ -1478,8 +1510,8 @@ simul_axi_read simul_axi_read_i(
{5'b0,ca[9:0]},
ba[2:0], //phy_bank_in[2:0],
3'b011, // phy_rcw_in[2:0], // {ras,cas,we}
1'b0, // phy_odt_in, // may be optimized?
1'b0, // phy_cke_inv, // may be optimized?
1'b1, // phy_odt_in,
1'b0, // phy_cke_inv,
1'b1, // phy_sel_in, // first/second half-cycle, other will be nop (cke+odt applicable to both)
1'b0, // phy_dq_en_in, //phy_dq_tri_in, // tristate DQ lines (internal timing sequencer for 0->1 and 1->0)
1'b0, // phy_dqs_en_in, // tristate DQS lines (internal timing sequencer for 0->1 and 1->0)
......@@ -1498,8 +1530,8 @@ simul_axi_read simul_axi_read_i(
15'b0, // skip 0
ba[2:0], //phy_bank_in[2:0],
3'b000, // phy_rcw_in[2:0], // {ras,cas,we}
1'b0, // phy_odt_in, // may be optimized?
1'b0, // phy_cke_inv, // may be optimized?
1'b1, // phy_odt_in,
1'b0, // phy_cke_inv,
1'b0, // phy_sel_in, // first/second half-cycle, other will be nop (cke+odt applicable to both)
1'b1, // phy_dq_en_in, //phy_dq_tri_in, // tristate DQ lines (internal timing sequencer for 0->1 and 1->0)
1'b1, // phy_dqs_en_in, // tristate DQS lines (internal timing sequencer for 0->1 and 1->0)
......@@ -1521,8 +1553,8 @@ simul_axi_read simul_axi_read_i(
{5'b0,ca[9:0]} + (i<<3),
ba[2:0], //phy_bank_in[2:0],
3'b011, // phy_rcw_in[2:0], // {ras,cas,we}
1'b0, // phy_odt_in, // may be optimized?
1'b0, // phy_cke_inv, // may be optimized?
1'b1, // phy_odt_in,
1'b0, // phy_cke_inv,
1'b1, // phy_sel_in, // first/second half-cycle, other will be nop (cke+odt applicable to both)
1'b1, // phy_dq_en_in, //phy_dq_tri_in, // tristate DQ lines (internal timing sequencer for 0->1 and 1->0)
1'b1, // phy_dqs_en_in, // tristate DQS lines (internal timing sequencer for 0->1 and 1->0)
......@@ -1544,7 +1576,7 @@ simul_axi_read simul_axi_read_i(
15'b0, // skip 0
ba[2:0], //phy_bank_in[2:0],
3'b000, // phy_rcw_in[2:0], // {ras,cas,we}
1'b0, // phy_odt_in, // may be optimized?
1'b1, // phy_odt_in, // may be optimized?
1'b0, // phy_cke_inv, // may be optimized?
1'b0, // phy_sel_in, // first/second half-cycle, other will be nop (cke+odt applicable to both)
1'b1, // phy_dq_en_in, //phy_dq_tri_in, // tristate DQ lines (internal timing sequencer for 0->1 and 1->0)
......@@ -1564,8 +1596,8 @@ simul_axi_read simul_axi_read_i(
15'b0, // skip 0
ba[2:0], //phy_bank_in[2:0],
3'b000, // phy_rcw_in[2:0], // {ras,cas,we}
1'b0, // phy_odt_in, // may be optimized?
1'b0, // phy_cke_inv, // may be optimized?
1'b1, // phy_odt_in,
1'b0, // phy_cke_inv,
1'b0, // phy_sel_in, // first/second half-cycle, other will be nop (cke+odt applicable to both)
1'b1, // phy_dq_en_in, //phy_dq_tri_in, // tristate DQ lines (internal timing sequencer for 0->1 and 1->0)
1'b1, // phy_dqs_en_in, // tristate DQS lines (internal timing sequencer for 0->1 and 1->0)
......@@ -1585,8 +1617,8 @@ simul_axi_read simul_axi_read_i(
15'b0, // skip 0
ba[2:0], //phy_bank_in[2:0],
3'b000, // phy_rcw_in[2:0], // {ras,cas,we}
1'b0, // phy_odt_in, // may be optimized?
1'b0, // phy_cke_inv, // may be optimized?
1'b1, // phy_odt_in,
1'b0, // phy_cke_inv,
1'b0, // phy_sel_in, // first/second half-cycle, other will be nop (cke+odt applicable to both)
1'b1, // phy_dq_en_in, //phy_dq_tri_in, // tristate DQ lines (internal timing sequencer for 0->1 and 1->0)
1'b1, // phy_dqs_en_in, // tristate DQS lines (internal timing sequencer for 0->1 and 1->0)
......@@ -1600,13 +1632,13 @@ simul_axi_read simul_axi_read_i(
@(posedge CLK)
axi_write_single(cmd_addr, data);
cmd_addr <= cmd_addr + 4;
data <= encode_seq_skip(2,0); // tWR = 15ns (6 cycles for 2.5ns) from end of write (not write command)
// ODT off, it has latency
data <= encode_seq_skip(2,0,0,0); // tWR = 15ns (6 cycles for 2.5ns) from end of write (not write command)
@(posedge CLK)
axi_write_single(cmd_addr, data);
cmd_addr <= cmd_addr + 4;
// precharge
// precharge, ODT off
data <= {
ra[14:0],
ba[2:0], //phy_bank_in[2:0],
......@@ -1627,12 +1659,12 @@ simul_axi_read simul_axi_read_i(
axi_write_single(cmd_addr, data);
cmd_addr <= cmd_addr + 4;
data <= encode_seq_skip(2,0); //
data <= encode_seq_skip(2,0,0,0); //
@(posedge CLK)
axi_write_single(cmd_addr, data);
cmd_addr <= cmd_addr + 4;
data <= encode_seq_skip(0,1); // end of sequence
data <= encode_seq_skip(0,1,0,0); // end of sequence
@(posedge CLK)
axi_write_single(cmd_addr, data);
cmd_addr <= cmd_addr + 4;
......@@ -1687,7 +1719,7 @@ simul_axi_read simul_axi_read_i(
@(posedge CLK)
axi_write_single(cmd_addr, data);
cmd_addr <= cmd_addr + 4;
data <= encode_seq_skip(13,0); // tWLDQSEN=25tCK
data <= encode_seq_skip(13,0,0,0); // tWLDQSEN=25tCK
@(posedge CLK)
axi_write_single(cmd_addr, data);
cmd_addr <= cmd_addr + 4;
......@@ -1697,8 +1729,8 @@ simul_axi_read simul_axi_read_i(
dqs_low_rpt, // 16 tCK
3'b0, //phy_bank_in[2:0],
3'b0, // phy_rcw_in[2:0], // {ras,cas,we}
1'b0, // phy_odt_in, // may be optimized?
1'b0, // phy_cke_inv, // may be optimized?
1'b1, // phy_odt_in,
1'b0, // phy_cke_inv,
1'b0, // phy_sel_in, // first/second half-cycle, other will be nop (cke+odt applicable to both)
1'b0, // phy_dq_en_in, //phy_dq_tri_in, // tristate DQ lines (internal timing sequencer for 0->1 and 1->0)
1'b1, // phy_dqs_en_in, // tristate DQS lines (internal timing sequencer for 0->1 and 1->0)
......@@ -1712,10 +1744,6 @@ simul_axi_read simul_axi_read_i(
@(posedge CLK)
axi_write_single(cmd_addr, data);
cmd_addr <= cmd_addr + 4;
// data <= encode_seq_skip(2,0); // Adjust skip
// @(posedge CLK)
// axi_write_single(cmd_addr, data);
// cmd_addr <= cmd_addr + 4;
// Toggle DQS as needed for write leveling, write to buffer
data <= { // encode_seq_skip(nrep,0); // Adjust skip
......@@ -1723,13 +1751,13 @@ simul_axi_read simul_axi_read_i(
nrep_minus_1[CMD_PAUSE_BITS-1:0],
3'b0, //phy_bank_in[2:0],
3'b0, // phy_rcw_in[2:0], // {ras,cas,we}
1'b0, // phy_odt_in, // may be optimized?
1'b1, // phy_odt_in, // may be optimized?
1'b0, // phy_cke_inv, // may be optimized?
1'b0, // phy_sel_in, // first/second half-cycle, other will be nop (cke+odt applicable to both)
1'b0, // phy_dq_en_in, //phy_dq_tri_in, // tristate DQ lines (internal timing sequencer for 0->1 and 1->0)
1'b1, // phy_dqs_en_in, // tristate DQS lines (internal timing sequencer for 0->1 and 1->0)
1'b1, // phy_dqs_toggle_en;
1'b0, // phy_dci_en_in, //phy_dci_in, // DCI disable, both DQ and DQS lines (internal logic and timing sequencer for 0->1 and 1->0)
1'b1, // phy_dci_en_in, //phy_dci_in, // DCI disable, both DQ and DQS lines (internal logic and timing sequencer for 0->1 and 1->0)
1'b1, // phy_buf_wr, // connect to external buffer (but only if not paused)
1'b0, // phy_buf_rd, // connect to external buffer (but only if not paused)
1'b0, // add NOP after the current command, keep other data
......@@ -1743,13 +1771,13 @@ simul_axi_read simul_axi_read_i(
15'h4, // 4 cycles
3'b0, //phy_bank_in[2:0],
3'b0, // phy_rcw_in[2:0], // {ras,cas,we}
1'b0, // phy_odt_in, // may be optimized?
1'b1, // phy_odt_in, // may be optimized?
1'b0, // phy_cke_inv, // may be optimized?
1'b0, // phy_sel_in, // first/second half-cycle, other will be nop (cke+odt applicable to both)
1'b0, // phy_dq_en_in, //phy_dq_tri_in, // tristate DQ lines (internal timing sequencer for 0->1 and 1->0)
1'b1, // phy_dqs_en_in, // tristate DQS lines (internal timing sequencer for 0->1 and 1->0)
1'b1, // phy_dqs_toggle_en;
1'b0, // phy_dci_en_in, //phy_dci_in, // DCI disable, both DQ and DQS lines (internal logic and timing sequencer for 0->1 and 1->0)
1'b1, // phy_dci_en_in, //phy_dci_in, // DCI disable, both DQ and DQS lines (internal logic and timing sequencer for 0->1 and 1->0)
1'b0, // phy_buf_wr, // no write
1'b0, // phy_buf_rd, // connect to external buffer (but only if not paused)
1'b0, // add NOP after the current command, keep other data
......@@ -1760,14 +1788,14 @@ simul_axi_read simul_axi_read_i(
cmd_addr <= cmd_addr + 4;
data <= encode_seq_skip(2,0); // Adjust skip
data <= encode_seq_skip(2,0,1,1); // Keep DCI and ODT active
@(posedge CLK)
axi_write_single(cmd_addr, data);
cmd_addr <= cmd_addr + 4;
// exit write leveling mode
// exit write leveling mode, ODT off, DCI off
data <= encode_seq_word(
mr1_norm[14:0], // [14:0] phy_addr_in;
mr1_norm[17:15], // [ 2:0] phy_bank_in; //TODO: debug!
......@@ -1786,12 +1814,12 @@ simul_axi_read simul_axi_read_i(
axi_write_single(cmd_addr, data);
cmd_addr <= cmd_addr + 4;
data <= encode_seq_skip(5,0); // tMOD
data <= encode_seq_skip(5,0,0,0); // tMOD
@(posedge CLK)
axi_write_single(cmd_addr, data);
cmd_addr <= cmd_addr + 4;
// Ready for normal operation
data <= encode_seq_skip(10,1); // sequence done bit, skip length is ignored
data <= encode_seq_skip(10,1,0,0); // sequence done bit, skip length is ignored
@(posedge CLK)
axi_write_single(cmd_addr, data);
cmd_addr <= cmd_addr + 4;
......@@ -1857,7 +1885,7 @@ simul_axi_read simul_axi_read_i(
@(posedge CLK)
axi_write_single(cmd_addr, data);
cmd_addr <= cmd_addr + 4;
data <= encode_seq_skip(1,0); // 6 cycles between mrs commands
data <= encode_seq_skip(1,0,0,0); // 6 cycles between mrs commands
@(posedge CLK)
axi_write_single(cmd_addr, data);
cmd_addr <= cmd_addr + 4;
......@@ -1879,7 +1907,7 @@ simul_axi_read simul_axi_read_i(
axi_write_single(cmd_addr, data);
cmd_addr <= cmd_addr + 4;
// TODO: function - does not check arguments number
data <= encode_seq_skip(0,0); // 5 cycles between mrs commands (next command has phy_sel_in == 1)
data <= encode_seq_skip(0,0,0,0); // 5 cycles between mrs commands (next command has phy_sel_in == 1)
@(posedge CLK)
axi_write_single(cmd_addr, data);
cmd_addr <= cmd_addr + 4;
......@@ -1901,7 +1929,7 @@ simul_axi_read simul_axi_read_i(
@(posedge CLK)
axi_write_single(cmd_addr, data);
cmd_addr <= cmd_addr + 4;
data <= encode_seq_skip(2,0); // 7 cycles between mrs commands ( prev. command had phy_sel_in == 1)
data <= encode_seq_skip(2,0,0,0); // 7 cycles between mrs commands ( prev. command had phy_sel_in == 1)
@(posedge CLK)
axi_write_single(cmd_addr, data);
cmd_addr <= cmd_addr + 4;
......@@ -1924,7 +1952,7 @@ simul_axi_read simul_axi_read_i(
axi_write_single(cmd_addr, data);
cmd_addr <= cmd_addr + 4;
data <= encode_seq_skip(5,0); // tMOD = 12 CK or 15ns, (tMOD/2)-1
data <= encode_seq_skip(5,0,0,0); // tMOD = 12 CK or 15ns, (tMOD/2)-1
@(posedge CLK)
axi_write_single(cmd_addr, data);
cmd_addr <= cmd_addr + 4;
......@@ -1947,12 +1975,12 @@ simul_axi_read simul_axi_read_i(
axi_write_single(cmd_addr, data);
cmd_addr <= cmd_addr + 4;
data <= encode_seq_skip(256,0); // 512 clock cycles after ZQCL
data <= encode_seq_skip(256,0,0,0); // 512 clock cycles after ZQCL
@(posedge CLK)
axi_write_single(cmd_addr, data);
cmd_addr <= cmd_addr + 4;
// Ready for normal operation
data <= encode_seq_skip(10,1); // sequence done bit, skip length is ignored
data <= encode_seq_skip(10,1,0,0); // sequence done bit, skip length is ignored
@(posedge CLK)
axi_write_single(cmd_addr, data);
cmd_addr <= cmd_addr + 4;
......@@ -2023,6 +2051,8 @@ simul_axi_read simul_axi_read_i(
function [31:0] encode_seq_skip;
input [CMD_PAUSE_BITS-1:0] skip;
input done;
input dci_en;
input odt_en;
begin
encode_seq_skip={
{14-CMD_DONE_BIT{1'b0}},
......@@ -2030,13 +2060,13 @@ simul_axi_read simul_axi_read_i(
skip[CMD_PAUSE_BITS-1:0],
3'b0, //phy_bank_in[2:0],
3'b0, // phy_rcw_in[2:0], // {ras,cas,we}
1'b0, // phy_odt_in, // may be optimized?
odt_en, // phy_odt_in,
1'b0, // phy_cke_in, // may be optimized?
1'b0, // phy_sel_in, // first/second half-cycle, other will be nop (cke+odt applicable to both)
1'b0, // phy_dq_en_in, //phy_dq_tri_in, // tristate DQ lines (internal timing sequencer for 0->1 and 1->0)
1'b0, // phy_dqs_en_in, //phy_dqs_tri_in, // tristate DQS lines (internal timing sequencer for 0->1 and 1->0)
1'b0, //enable toggle DQS according to the pattern
1'b0, // phy_dci_en_in, //phy_dci_in, // DCI disable, both DQ and DQS lines (internal logic and timing sequencer for 0->1 and 1->0)
dci_en, // phy_dci_en_in, //phy_dci_in, // DCI disable, both DQ and DQS lines (internal logic and timing sequencer for 0->1 and 1->0)
1'b0, // phy_buf_wr, // connect to external buffer (but only if not paused)
1'b0, // phy_buf_rd, // connect to external buffer (but only if not paused)
1'b0, // add NOP after the current command, keep other data
......
......@@ -111,6 +111,8 @@ module ddrc_sequencer #(
// extras
input cmda_en, // enable (!tristate) command and address lines // not likely to be used
input ddr_rst, // generate reset to DDR3 memory (active high)
input dci_rst, // active high - reset DCI circuitry