mirror of
https://github.com/marqs85/ossc.git
synced 2025-04-06 21:37:18 +00:00
fix PLL reference clock switchover logic
This commit is contained in:
marqs
parent
3771d5cb14
commit
9feb96888b
2
ossc.qsf
2
ossc.qsf
@ -218,7 +218,7 @@ set_global_assignment -name ENABLE_SIGNALTAP OFF
|
||||
set_global_assignment -name USE_SIGNALTAP_FILE output_files/ossc_la.stp
|
||||
|
||||
set_global_assignment -name FITTER_EFFORT "AUTO FIT"
|
||||
set_global_assignment -name SEED 2
|
||||
set_global_assignment -name SEED 4
|
||||
|
||||
|
||||
|
||||
|
||||
@ -10,6 +10,7 @@
|
||||
<pin name="scanclk" direction="input" scope="external" source="clock" />
|
||||
<pin name="scanclkena" direction="input" scope="external" />
|
||||
<pin name="scandata" direction="input" scope="external" />
|
||||
<pin name="activeclock" direction="output" scope="external" />
|
||||
<pin name="c0" direction="output" scope="external" source="clock" />
|
||||
<pin name="c1" direction="output" scope="external" source="clock" />
|
||||
<pin name="locked" direction="output" scope="external" />
|
||||
|
||||
48
rtl/pll_2x.v
48
rtl/pll_2x.v
@ -45,6 +45,7 @@ module pll_2x (
|
||||
scanclk,
|
||||
scanclkena,
|
||||
scandata,
|
||||
activeclock,
|
||||
c0,
|
||||
c1,
|
||||
locked,
|
||||
@ -59,6 +60,7 @@ module pll_2x (
|
||||
input scanclk;
|
||||
input scanclkena;
|
||||
input scandata;
|
||||
output activeclock;
|
||||
output c0;
|
||||
output c1;
|
||||
output locked;
|
||||
@ -76,34 +78,36 @@ module pll_2x (
|
||||
// synopsys translate_on
|
||||
`endif
|
||||
|
||||
wire [4:0] sub_wire0;
|
||||
wire sub_wire3;
|
||||
wire sub_wire0;
|
||||
wire [4:0] sub_wire1;
|
||||
wire sub_wire4;
|
||||
wire sub_wire5;
|
||||
wire sub_wire8 = inclk1;
|
||||
wire [1:1] sub_wire2 = sub_wire0[1:1];
|
||||
wire [0:0] sub_wire1 = sub_wire0[0:0];
|
||||
wire c0 = sub_wire1;
|
||||
wire c1 = sub_wire2;
|
||||
wire locked = sub_wire3;
|
||||
wire scandataout = sub_wire4;
|
||||
wire scandone = sub_wire5;
|
||||
wire sub_wire6 = inclk0;
|
||||
wire [1:0] sub_wire7 = {sub_wire8, sub_wire6};
|
||||
wire sub_wire6;
|
||||
wire sub_wire9 = inclk1;
|
||||
wire activeclock = sub_wire0;
|
||||
wire [1:1] sub_wire3 = sub_wire1[1:1];
|
||||
wire [0:0] sub_wire2 = sub_wire1[0:0];
|
||||
wire c0 = sub_wire2;
|
||||
wire c1 = sub_wire3;
|
||||
wire locked = sub_wire4;
|
||||
wire scandataout = sub_wire5;
|
||||
wire scandone = sub_wire6;
|
||||
wire sub_wire7 = inclk0;
|
||||
wire [1:0] sub_wire8 = {sub_wire9, sub_wire7};
|
||||
|
||||
altpll altpll_component (
|
||||
.areset (areset),
|
||||
.clkswitch (clkswitch),
|
||||
.configupdate (configupdate),
|
||||
.inclk (sub_wire7),
|
||||
.inclk (sub_wire8),
|
||||
.scanclk (scanclk),
|
||||
.scanclkena (scanclkena),
|
||||
.scandata (scandata),
|
||||
.clk (sub_wire0),
|
||||
.locked (sub_wire3),
|
||||
.scandataout (sub_wire4),
|
||||
.scandone (sub_wire5),
|
||||
.activeclock (),
|
||||
.activeclock (sub_wire0),
|
||||
.clk (sub_wire1),
|
||||
.locked (sub_wire4),
|
||||
.scandataout (sub_wire5),
|
||||
.scandone (sub_wire6),
|
||||
.clkbad (),
|
||||
.clkena ({6{1'b1}}),
|
||||
.clkloss (),
|
||||
@ -147,7 +151,7 @@ module pll_2x (
|
||||
altpll_component.lpm_type = "altpll",
|
||||
altpll_component.operation_mode = "NORMAL",
|
||||
altpll_component.pll_type = "AUTO",
|
||||
altpll_component.port_activeclock = "PORT_UNUSED",
|
||||
altpll_component.port_activeclock = "PORT_USED",
|
||||
altpll_component.port_areset = "PORT_USED",
|
||||
altpll_component.port_clkbad0 = "PORT_UNUSED",
|
||||
altpll_component.port_clkbad1 = "PORT_UNUSED",
|
||||
@ -205,7 +209,7 @@ endmodule
|
||||
// ============================================================
|
||||
// CNX file retrieval info
|
||||
// ============================================================
|
||||
// Retrieval info: PRIVATE: ACTIVECLK_CHECK STRING "0"
|
||||
// Retrieval info: PRIVATE: ACTIVECLK_CHECK STRING "1"
|
||||
// Retrieval info: PRIVATE: BANDWIDTH STRING "1.000"
|
||||
// Retrieval info: PRIVATE: BANDWIDTH_FEATURE_ENABLED STRING "1"
|
||||
// Retrieval info: PRIVATE: BANDWIDTH_FREQ_UNIT STRING "MHz"
|
||||
@ -316,7 +320,7 @@ endmodule
|
||||
// Retrieval info: CONSTANT: LPM_TYPE STRING "altpll"
|
||||
// Retrieval info: CONSTANT: OPERATION_MODE STRING "NORMAL"
|
||||
// Retrieval info: CONSTANT: PLL_TYPE STRING "AUTO"
|
||||
// Retrieval info: CONSTANT: PORT_ACTIVECLOCK STRING "PORT_UNUSED"
|
||||
// Retrieval info: CONSTANT: PORT_ACTIVECLOCK STRING "PORT_USED"
|
||||
// Retrieval info: CONSTANT: PORT_ARESET STRING "PORT_USED"
|
||||
// Retrieval info: CONSTANT: PORT_CLKBAD0 STRING "PORT_UNUSED"
|
||||
// Retrieval info: CONSTANT: PORT_CLKBAD1 STRING "PORT_UNUSED"
|
||||
@ -363,6 +367,7 @@ endmodule
|
||||
// Retrieval info: CONSTANT: WIDTH_CLOCK NUMERIC "5"
|
||||
// Retrieval info: CONSTANT: scan_chain_mif_file STRING "pll_2x.hex"
|
||||
// Retrieval info: USED_PORT: @clk 0 0 5 0 OUTPUT_CLK_EXT VCC "@clk[4..0]"
|
||||
// Retrieval info: USED_PORT: activeclock 0 0 0 0 OUTPUT GND "activeclock"
|
||||
// Retrieval info: USED_PORT: areset 0 0 0 0 INPUT GND "areset"
|
||||
// Retrieval info: USED_PORT: c0 0 0 0 0 OUTPUT_CLK_EXT VCC "c0"
|
||||
// Retrieval info: USED_PORT: c1 0 0 0 0 OUTPUT_CLK_EXT VCC "c1"
|
||||
@ -384,6 +389,7 @@ endmodule
|
||||
// Retrieval info: CONNECT: @scanclk 0 0 0 0 scanclk 0 0 0 0
|
||||
// Retrieval info: CONNECT: @scanclkena 0 0 0 0 scanclkena 0 0 0 0
|
||||
// Retrieval info: CONNECT: @scandata 0 0 0 0 scandata 0 0 0 0
|
||||
// Retrieval info: CONNECT: activeclock 0 0 0 0 @activeclock 0 0 0 0
|
||||
// Retrieval info: CONNECT: c0 0 0 0 0 @clk 0 0 1 0
|
||||
// Retrieval info: CONNECT: c1 0 0 0 0 @clk 0 0 1 1
|
||||
// Retrieval info: CONNECT: locked 0 0 0 0 @locked 0 0 0 0
|
||||
|
||||
174
rtl/pll_config_default_data.mif
Normal file
174
rtl/pll_config_default_data.mif
Normal file
@ -0,0 +1,174 @@
|
||||
-- Copyright (C) 2017 Intel Corporation. All rights reserved.
|
||||
-- Your use of Intel Corporation's design tools, logic functions
|
||||
-- and other software and tools, and its AMPP partner logic
|
||||
-- functions, and any output files from any of the foregoing
|
||||
-- (including device programming or simulation files), and any
|
||||
-- associated documentation or information are expressly subject
|
||||
-- to the terms and conditions of the Intel Program License
|
||||
-- Subscription Agreement, the Intel Quartus Prime License Agreement,
|
||||
-- the Intel FPGA IP License Agreement, or other applicable license
|
||||
-- agreement, including, without limitation, that your use is for
|
||||
-- the sole purpose of programming logic devices manufactured by
|
||||
-- Intel and sold by Intel or its authorized distributors. Please
|
||||
-- refer to the applicable agreement for further details.
|
||||
|
||||
-- MIF file representing initial state of PLL Scan Chain
|
||||
-- Device Family: Cyclone IV E
|
||||
-- Device Part: -
|
||||
-- Device Speed Grade: 8
|
||||
-- PLL Scan Chain: Fast PLL (144 bits)
|
||||
-- File Name: /home/markus/Code/ossc/rtl/pll_config_default_data.mif
|
||||
-- Generated: Wed Oct 9 22:20:06 2019
|
||||
|
||||
WIDTH=1;
|
||||
DEPTH=144;
|
||||
|
||||
ADDRESS_RADIX=UNS;
|
||||
DATA_RADIX=UNS;
|
||||
|
||||
CONTENT BEGIN
|
||||
0 : 0; -- Reserved Bits = 0 (1 bit(s))
|
||||
1 : 0; -- Reserved Bits = 0 (1 bit(s))
|
||||
2 : 0; -- Loop Filter Capacitance = 0 (2 bit(s)) (Setting 0)
|
||||
3 : 0;
|
||||
4 : 1; -- Loop Filter Resistance = 27 (5 bit(s)) (Setting 27)
|
||||
5 : 1;
|
||||
6 : 0;
|
||||
7 : 1;
|
||||
8 : 1;
|
||||
9 : 0; -- VCO Post Scale = 0 (1 bit(s)) (VCO post-scale divider counter value = 2)
|
||||
10 : 0; -- Reserved Bits = 0 (5 bit(s))
|
||||
11 : 0;
|
||||
12 : 0;
|
||||
13 : 0;
|
||||
14 : 0;
|
||||
15 : 0; -- Charge Pump Current = 1 (3 bit(s)) (Setting 1)
|
||||
16 : 0;
|
||||
17 : 1;
|
||||
18 : 1; -- N counter: Bypass = 1 (1 bit(s))
|
||||
19 : 0; -- N counter: High Count = 0 (8 bit(s))
|
||||
20 : 0;
|
||||
21 : 0;
|
||||
22 : 0;
|
||||
23 : 0;
|
||||
24 : 0;
|
||||
25 : 0;
|
||||
26 : 0;
|
||||
27 : 0; -- N counter: Odd Division = 0 (1 bit(s))
|
||||
28 : 0; -- N counter: Low Count = 0 (8 bit(s))
|
||||
29 : 0;
|
||||
30 : 0;
|
||||
31 : 0;
|
||||
32 : 0;
|
||||
33 : 0;
|
||||
34 : 0;
|
||||
35 : 0;
|
||||
36 : 0; -- M counter: Bypass = 0 (1 bit(s))
|
||||
37 : 0; -- M counter: High Count = 8 (8 bit(s))
|
||||
38 : 0;
|
||||
39 : 0;
|
||||
40 : 0;
|
||||
41 : 1;
|
||||
42 : 0;
|
||||
43 : 0;
|
||||
44 : 0;
|
||||
45 : 0; -- M counter: Odd Division = 0 (1 bit(s))
|
||||
46 : 0; -- M counter: Low Count = 8 (8 bit(s))
|
||||
47 : 0;
|
||||
48 : 0;
|
||||
49 : 0;
|
||||
50 : 1;
|
||||
51 : 0;
|
||||
52 : 0;
|
||||
53 : 0;
|
||||
54 : 0; -- clk0 counter: Bypass = 0 (1 bit(s))
|
||||
55 : 0; -- clk0 counter: High Count = 8 (8 bit(s))
|
||||
56 : 0;
|
||||
57 : 0;
|
||||
58 : 0;
|
||||
59 : 1;
|
||||
60 : 0;
|
||||
61 : 0;
|
||||
62 : 0;
|
||||
63 : 0; -- clk0 counter: Odd Division = 0 (1 bit(s))
|
||||
64 : 0; -- clk0 counter: Low Count = 8 (8 bit(s))
|
||||
65 : 0;
|
||||
66 : 0;
|
||||
67 : 0;
|
||||
68 : 1;
|
||||
69 : 0;
|
||||
70 : 0;
|
||||
71 : 0;
|
||||
72 : 0; -- clk1 counter: Bypass = 0 (1 bit(s))
|
||||
73 : 0; -- clk1 counter: High Count = 8 (8 bit(s))
|
||||
74 : 0;
|
||||
75 : 0;
|
||||
76 : 0;
|
||||
77 : 1;
|
||||
78 : 0;
|
||||
79 : 0;
|
||||
80 : 0;
|
||||
81 : 0; -- clk1 counter: Odd Division = 0 (1 bit(s))
|
||||
82 : 0; -- clk1 counter: Low Count = 8 (8 bit(s))
|
||||
83 : 0;
|
||||
84 : 0;
|
||||
85 : 0;
|
||||
86 : 1;
|
||||
87 : 0;
|
||||
88 : 0;
|
||||
89 : 0;
|
||||
90 : 1; -- clk2 counter: Bypass = 1 (1 bit(s))
|
||||
91 : 0; -- clk2 counter: High Count = 0 (8 bit(s))
|
||||
92 : 0;
|
||||
93 : 0;
|
||||
94 : 0;
|
||||
95 : 0;
|
||||
96 : 0;
|
||||
97 : 0;
|
||||
98 : 0;
|
||||
99 : 0; -- clk2 counter: Odd Division = 0 (1 bit(s))
|
||||
100 : 0; -- clk2 counter: Low Count = 0 (8 bit(s))
|
||||
101 : 0;
|
||||
102 : 0;
|
||||
103 : 0;
|
||||
104 : 0;
|
||||
105 : 0;
|
||||
106 : 0;
|
||||
107 : 0;
|
||||
108 : 1; -- clk3 counter: Bypass = 1 (1 bit(s))
|
||||
109 : 0; -- clk3 counter: High Count = 0 (8 bit(s))
|
||||
110 : 0;
|
||||
111 : 0;
|
||||
112 : 0;
|
||||
113 : 0;
|
||||
114 : 0;
|
||||
115 : 0;
|
||||
116 : 0;
|
||||
117 : 0; -- clk3 counter: Odd Division = 0 (1 bit(s))
|
||||
118 : 0; -- clk3 counter: Low Count = 0 (8 bit(s))
|
||||
119 : 0;
|
||||
120 : 0;
|
||||
121 : 0;
|
||||
122 : 0;
|
||||
123 : 0;
|
||||
124 : 0;
|
||||
125 : 0;
|
||||
126 : 1; -- clk4 counter: Bypass = 1 (1 bit(s))
|
||||
127 : 0; -- clk4 counter: High Count = 0 (8 bit(s))
|
||||
128 : 0;
|
||||
129 : 0;
|
||||
130 : 0;
|
||||
131 : 0;
|
||||
132 : 0;
|
||||
133 : 0;
|
||||
134 : 0;
|
||||
135 : 0; -- clk4 counter: Odd Division = 0 (1 bit(s))
|
||||
136 : 0; -- clk4 counter: Low Count = 0 (8 bit(s))
|
||||
137 : 0;
|
||||
138 : 0;
|
||||
139 : 0;
|
||||
140 : 0;
|
||||
141 : 0;
|
||||
142 : 0;
|
||||
143 : 0;
|
||||
END;
|
||||
@ -121,11 +121,13 @@ module scanconverter (
|
||||
output pll_scandone
|
||||
);
|
||||
|
||||
//clock-related signals
|
||||
//clock-related signals and registers
|
||||
wire pclk_act;
|
||||
wire pclk_1x, pclk_2x, pclk_3x, pclk_4x, pclk_5x;
|
||||
wire [1:0] pclk_mux_sel;
|
||||
wire pll_lock;
|
||||
wire pll_activeclock;
|
||||
reg pll_clkswitch;
|
||||
|
||||
//RGB signals®isters: 8 bits per component -> 16.7M colors
|
||||
wire [7:0] R_act, G_act, B_act;
|
||||
@ -492,13 +494,14 @@ endcase
|
||||
|
||||
pll_2x pll_pclk (
|
||||
.areset(pll_areset),
|
||||
.clkswitch(enable_sc),
|
||||
.clkswitch(pll_clkswitch),
|
||||
.configupdate(pll_configupdate),
|
||||
.inclk0(clk27), // set videogen clock to primary (power-on default) since both reference clocks must be running during switchover
|
||||
.inclk1(PCLK_in), // is the secondary input clock fully compensated?
|
||||
.scanclk(pll_scanclk),
|
||||
.scanclkena(pll_scanclkena),
|
||||
.scandata(pll_scandata),
|
||||
.activeclock(pll_activeclock),
|
||||
.c0(pclk_2x), // pclk_3x in secondary config
|
||||
.c1(pclk_5x), // pclk_4x in secondary config
|
||||
.locked(pll_lock),
|
||||
@ -807,6 +810,12 @@ begin
|
||||
end
|
||||
end
|
||||
|
||||
// Control PLL reference clock switchover
|
||||
always @(posedge clk27)
|
||||
begin
|
||||
pll_clkswitch <= (pll_activeclock != enable_sc);
|
||||
end
|
||||
|
||||
//Forward status flag to CPU
|
||||
assign vsync_flag = ~VSYNC_in_cc_LL;
|
||||
|
||||
|
||||
@ -97,6 +97,7 @@ alt_u32 read_it2(alt_u32 regaddr);
|
||||
// 8. Compare your MIF/HEX to the captured scan chain and update it accordingly
|
||||
// 9. Dump the updated scan chain data to an array like below (last 16 bits are 0)
|
||||
// 10. PLL can be then reconfigured with custom pll_reconfig as shown in program_mode()
|
||||
const alt_u32 pll_config_default_data[] = {0x0d806000, 0x00402010, 0x08040220, 0x00004022, 0x00000000};
|
||||
const alt_u32 pll_config_2x_5x_data[] = {0x0dc06000, 0x00783c11, 0x070180e0, 0x0000180e, 0x00000000};
|
||||
const alt_u32 pll_config_3x_4x_data[] = {0x0d806000, 0x00301804, 0x02014060, 0x00001406, 0x00000000};
|
||||
|
||||
@ -745,6 +746,11 @@ int init_hw()
|
||||
sys_ctrl = AV_RESET_N|LCD_BL|SD_SPI_SS_N|LCD_CS_N|REMOTE_EVENT;
|
||||
IOWR_ALTERA_AVALON_PIO_DATA(PIO_0_BASE, sys_ctrl);
|
||||
|
||||
// Reload initial PLL config (needed after jtagm_reset_req if config has changed).
|
||||
// Note that test pattern gets restored only if pclk was active before jtagm_reset_req assertion.
|
||||
memcpy((void*)pll_reconfig->pll_config_data.data, pll_config_default_data, sizeof(pll_config_default_data));
|
||||
pll_reconfig->pll_config_status.update = 1;
|
||||
|
||||
//wait >500ms for SD card interface to be stable
|
||||
//over 200ms and LCD may be buggy?
|
||||
usleep(200000);
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user