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Commit 6176aa7b authored by Andrey Filippov's avatar Andrey Filippov
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fixed DCI and ODT for all tested modes

parent 01028931
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Showing with 209 additions and 112 deletions
.project
View file @ 6176aa7b
......@@ -56,77 +56,77 @@
<link>
<name>vivado_logs/VivadoBitstream.log</name>
<type>1</type>
<location>/data/vdt/vdt-projects/eddr3/vivado_logs/VivadoBitstream-20140531223145240.log</location>
<location>/data/vdt/vdt-projects/eddr3/vivado_logs/VivadoBitstream-20140602122428009.log</location>
</link>
<link>
<name>vivado_logs/VivadoOpt.log</name>
<type>1</type>
<location>/data/vdt/vdt-projects/eddr3/vivado_logs/VivadoOpt-20140531223145240.log</location>
<location>/data/vdt/vdt-projects/eddr3/vivado_logs/VivadoOpt-20140602122428009.log</location>
</link>
<link>
<name>vivado_logs/VivadoOptPhys.log</name>
<type>1</type>
<location>/data/vdt/vdt-projects/eddr3/vivado_logs/VivadoOptPhys-20140531223145240.log</location>
<location>/data/vdt/vdt-projects/eddr3/vivado_logs/VivadoOptPhys-20140602122428009.log</location>
</link>
<link>
<name>vivado_logs/VivadoOptPower.log</name>
<type>1</type>
<location>/data/vdt/vdt-projects/eddr3/vivado_logs/VivadoOptPower-20140531223145240.log</location>
<location>/data/vdt/vdt-projects/eddr3/vivado_logs/VivadoOptPower-20140602122428009.log</location>
</link>
<link>
<name>vivado_logs/VivadoPlace.log</name>
<type>1</type>
<location>/data/vdt/vdt-projects/eddr3/vivado_logs/VivadoPlace-20140531223145240.log</location>
<location>/data/vdt/vdt-projects/eddr3/vivado_logs/VivadoPlace-20140602122428009.log</location>
</link>
<link>
<name>vivado_logs/VivadoRoute.log</name>
<type>1</type>
<location>/data/vdt/vdt-projects/eddr3/vivado_logs/VivadoRoute-20140531223145240.log</location>
<location>/data/vdt/vdt-projects/eddr3/vivado_logs/VivadoRoute-20140602122428009.log</location>
</link>
<link>
<name>vivado_logs/VivadoSynthesis.log</name>
<type>1</type>
<location>/data/vdt/vdt-projects/eddr3/vivado_logs/VivadoSynthesis-20140531222614445.log</location>
<location>/data/vdt/vdt-projects/eddr3/vivado_logs/VivadoSynthesis-20140602115135083.log</location>
</link>
<link>
<name>vivado_logs/VivadoTimimgSummaryReportImplemented.log</name>
<type>1</type>
<location>/data/vdt/vdt-projects/eddr3/vivado_logs/VivadoTimimgSummaryReportImplemented-20140531223145240.log</location>
<location>/data/vdt/vdt-projects/eddr3/vivado_logs/VivadoTimimgSummaryReportImplemented-20140602122428009.log</location>
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<name>vivado_logs/VivadoTimimgSummaryReportSynthesis.log</name>
<type>1</type>
<location>/data/vdt/vdt-projects/eddr3/vivado_logs/VivadoTimimgSummaryReportSynthesis-20140531222614445.log</location>
<location>/data/vdt/vdt-projects/eddr3/vivado_logs/VivadoTimimgSummaryReportSynthesis-20140602115135083.log</location>
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<name>vivado_logs/VivadoTimingReportImplemented.log</name>
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<location>/data/vdt/vdt-projects/eddr3/vivado_logs/VivadoTimingReportImplemented-20140531223145240.log</location>
<location>/data/vdt/vdt-projects/eddr3/vivado_logs/VivadoTimingReportImplemented-20140602122428009.log</location>
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<name>vivado_logs/VivadoTimingReportSynthesis.log</name>
<type>1</type>
<location>/data/vdt/vdt-projects/eddr3/vivado_logs/VivadoTimingReportSynthesis-20140531222614445.log</location>
<location>/data/vdt/vdt-projects/eddr3/vivado_logs/VivadoTimingReportSynthesis-20140602115135083.log</location>
</link>
<link>
<name>vivado_state/eddr3-opt-phys.dcp</name>
<type>1</type>
<location>/data/vdt/vdt-projects/eddr3/vivado_state/eddr3-opt-phys-20140531223145240.dcp</location>
<location>/data/vdt/vdt-projects/eddr3/vivado_state/eddr3-opt-phys-20140602122428009.dcp</location>
</link>
<link>
<name>vivado_state/eddr3-place.dcp</name>
<type>1</type>
<location>/data/vdt/vdt-projects/eddr3/vivado_state/eddr3-place-20140531223145240.dcp</location>
<location>/data/vdt/vdt-projects/eddr3/vivado_state/eddr3-place-20140602122428009.dcp</location>
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<link>
<name>vivado_state/eddr3-route.dcp</name>
<type>1</type>
<location>/data/vdt/vdt-projects/eddr3/vivado_state/eddr3-route-20140531223145240.dcp</location>
<location>/data/vdt/vdt-projects/eddr3/vivado_state/eddr3-route-20140602122428009.dcp</location>
</link>
<link>
<name>vivado_state/eddr3-synth.dcp</name>
<type>1</type>
<location>/data/vdt/vdt-projects/eddr3/vivado_state/eddr3-synth-20140531222614445.dcp</location>
<location>/data/vdt/vdt-projects/eddr3/vivado_state/eddr3-synth-20140602115135083.dcp</location>
</link>
</linkedResources>
</projectDescription>
ddrc_control.v
View file @ 6176aa7b
......@@ -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];
......
ddrc_test01.v
View file @ 6176aa7b
......@@ -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]
......
ddrc_test01_testbench.sav
View file @ 6176aa7b
[*]
[*] 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
......
ddrc_test01_testbench.tf
View file @ 6176aa7b
This diff is collapsed.
phy/ddrc_sequencer.v
View file @ 6176aa7b
......@@ -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
input dly_rst, // active high - delay calibration circuitry
input ddr_cke, // DDR clock enable , XOR-ed with command bit
input inv_clk_div,
input [7:0] dqs_pattern, // 8'h55
......@@ -380,6 +382,8 @@ module ddrc_sequencer #(
.buf_rd (buf_rd), // output
.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]
......
phy/phy_cmd.v
View file @ 6176aa7b
......@@ -97,6 +97,8 @@ module phy_cmd#(
// input cmda_tri, // tristate command and address lines // not likely to be used
input cmda_en, // 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
input dly_rst, // active high - delay calibration circuitry
input ddr_cke, // DDR clock enable , XOR-ed with command bit
input inv_clk_div,
input [7:0] dqs_pattern, // 8'h55
......@@ -180,7 +182,7 @@ module phy_cmd#(
phy_addr_in,
phy_bank_in,
phy_rcw_pos, // {ras,cas,we}
phy_odt_in, // may be optimized?
phy_odt_in, //
phy_cke_dis, // disable cke (0 - enable), also controlled by a command bit ddr_cke (XOR-ed)
phy_sel_in, // fitst/second half-cycle, oter will be nop (cke+odt applicable to both)
phy_dq_en_in, //phy_dq_tri_in, // tristate DQ lines (internal timing sequencer for 0->1 and 1->0)
......@@ -248,7 +250,7 @@ module phy_cmd#(
assign phy_dqs_tri= (dqs_tri_prev==phy_dqs_tri_in)?{{8{phy_dqs_tri_in}}}:
(dqs_tri_prev?{dqs_tri_on_pattern,dqs_tri_on_pattern}:{dqs_tri_off_pattern,dqs_tri_off_pattern});
assign phy_dci_dis_dq = phy_dci_in; // DCI disable, both DQ and DQS lines (internal logic and timing sequencer for 0->1 and 1->0)
assign phy_dci_dis_dqs = phy_dci_in; // DCI disable, both DQ and DQS lines (internal logic and timing sequencer for 0->1 and 1->0)
assign phy_dci_dis_dqs = phy_dci_in || phy_odt_cur; // In write leveling mode phy_dci_in = 0, phy_odt_cur=1 - use DCI on DQ only, no DQS
assign locked = locked_r2;
assign ps_rdy = ps_rdy_r2;
......@@ -380,6 +382,8 @@ module phy_cmd#(
.rst_in (rst_in), // input
.ddr_rst (ddr_rst), // input
.dci_rst (dci_rst), // input
.dly_rst (dly_rst), // input
.in_a (phy_addr[2*ADDRESS_NUMBER-1:0]), // input[29:0]
.in_ba (phy_bank[5:0]), // input[5:0]
.in_we ({phy_rcw[3],phy_rcw[0]}), // input[1:0]
......
phy/phy_top.v
View file @ 6176aa7b
......@@ -77,6 +77,9 @@ module phy_top #(
output mclk, // same as clk_div, through separate BUFG and static phase adjust
input rst_in, // reset delays/serdes
input ddr_rst, // active high - generate NRST to memory
input dci_rst, // active high - reset DCI circuitry
input dly_rst, // active high - delay calibration circuitry
input [2*ADDRESS_NUMBER-1:0] in_a, // input address, 2 bits per signal (first, second) (29:0) for 4Gb device
input [5:0] in_ba, // input bank address, 2 bits per signal (first, second)
input [1:0] in_we, // input WE, 2 bits (first, second)
......@@ -108,7 +111,8 @@ module phy_top #(
output [PHASE_WIDTH-1:0] ps_out
);
reg rst=1'b0;
always @(posedge clk_div or posedge rst_in) begin
// always @(posedge clk_div or posedge rst_in) begin // got min hold violation
always @(negedge clk_div or posedge rst_in) begin
if (rst_in) rst <= 1'b1;
else rst <= 1'b0;
end
......@@ -118,8 +122,8 @@ module phy_top #(
wire ld_mmcm= (dly_addr[6:0] == 7'h60) && ld_delay ;
wire clkfb_ref, clk_ref_pre;
wire clk_ref; // 200MHz/300Mhz to calibrate I/O delays
wire locked_mmcm,locked_pll, dly_ready;
assign locked=locked_mmcm && locked_pll && dly_ready; // both PLL ready, I/O delay calibrated
wire locked_mmcm,locked_pll, dly_ready, dci_ready;
assign locked=locked_mmcm && locked_pll && dly_ready && dci_ready; // both PLL ready, I/O delay calibrated
/* memory reset */
obuf #(
......@@ -345,15 +349,19 @@ BUFG mclk_i (.O(mclk),.I(mclk_pre) );
.clkfbout(clkfb_ref), // output
.locked(locked_pll) // output
);
// Does it need to be re-calibrated periodically?
idelay_ctrl# (
// Does it need to be re-calibrated periodically - yes when temperature changes, same as dci_reset
idelay_ctrl# (
.IODELAY_GRP("IODELAY_MEMORY")
) idelay_ctrl_i (
) idelay_ctrl_i (
.refclk(clk_ref),
.rst(rst),
.rst(rst || dly_rst),
.rdy(dly_ready)
);
);
dci_reset dci_reset_i (
.reset(rst || dci_rst), // input
.ready(dci_ready) // output
);
endmodule
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