aboutsummaryrefslogtreecommitdiffstats
path: root/icefuzz/make_pll.py
blob: 704b3c0585849fd8c512bb38aaff40f0ba8a0da5 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
#!/usr/bin/env python3

from fuzzconfig import *
import numpy as np
import os

from numpy.random import randint, choice, permutation

def randbin(n):
    return  "".join([choice(["0", "1"]) for i in range(n)])

for p in gpins:
    if p in pins: pins.remove(p)

device_class = os.getenv("ICEDEVICE")

working_dir = "work_%s_pll" % (device_class, )

os.system("rm -rf " + working_dir)
os.mkdir(working_dir)

for idx in range(num):
    pin_names = list()
    vlog_body = list()
    pll_inst = list()

    pll_type = choice(["SB_PLL40_CORE", "SB_PLL40_2F_CORE", "SB_PLL40_PAD", "SB_PLL40_2_PAD", "SB_PLL40_2F_PAD"])

    pll_inst.append("%s uut (" % pll_type)

    if pll_type.endswith("_PAD"):
        pin_names.append("packagepin")
        vlog_body.append("input packagepin;")
        pll_inst.append("  .PACKAGEPIN(packagepin),")
    else:
        pin_names.append("referenceclk")
        vlog_body.append("input referenceclk;")
        pll_inst.append("  .REFERENCECLK(referenceclk),")

    for pin in ["a", "b"]:
        pin_names.append(pin)
        vlog_body.append("input %s;" % pin)

    for pin in ["w", "x", "y", "z"]:
        pin_names.append(pin)
        vlog_body.append("output %s%s;" % ("reg " if pin in ["y", "z"] else "", pin))

    for pin in ["EXTFEEDBACK", "BYPASS", "RESETB", "LOCK", "LATCHINPUTVALUE", "SDI", "SDO", "SCLK"]:
        pin_names.append(pin.lower())
        vlog_body.append("%sput %s;" % ("out" if pin in ["LOCK", "SDO"] else "in", pin.lower()))
        pll_inst.append("  .%s(%s)," % (pin, pin.lower()))

    if pll_type.find("_2_") < 0 and pll_type.find("_2F_") < 0:
        for pin in ["PLLOUTCORE", "PLLOUTGLOBAL"]:
            vlog_body.append("wire %s;" % pin.lower())
            pll_inst.append("  .%s(%s)," % (pin, pin.lower()))
        vlog_body.append("assign w = plloutcore ^ a;")
        vlog_body.append("assign x = plloutcore ^ b;")
        vlog_body.append("always @(posedge plloutglobal) y <= a;")
        vlog_body.append("always @(posedge plloutglobal) z <= b;")
    else:
        for pin in ["PLLOUTCOREA", "PLLOUTCOREB", "PLLOUTGLOBALA", "PLLOUTGLOBALB"]:
            vlog_body.append("wire %s;" % pin.lower())
            pll_inst.append("  .%s(%s)," % (pin, pin.lower()))
        vlog_body.append("assign w = plloutcorea ^ a;")
        vlog_body.append("assign x = plloutcoreb ^ b;")
        vlog_body.append("always @(posedge plloutglobala) y <= a;")
        vlog_body.append("always @(posedge plloutglobalb) z <= b;")

    for i in range(8):
        pin_names.append("dynamicdelay_%d" % i)
        vlog_body.append("input dynamicdelay_%d;" % i)
    pll_inst.append("  .DYNAMICDELAY({%s})" % ", ".join(["dynamicdelay_%d" % i for i in range(7, -1, -1)]))
    pll_inst.append(");")

    divq = randbin(3)
    if divq == "000": divq = "001"
    if divq == "111": divq = "110"
    pll_inst.append("defparam uut.DIVR = 4'b%s;" % randbin(4))
    pll_inst.append("defparam uut.DIVF = 7'b%s;" % randbin(7))
    pll_inst.append("defparam uut.DIVQ = 3'b%s;" % divq)
    pll_inst.append("defparam uut.FILTER_RANGE = 3'b%s;" %  randbin(3))
    pll_inst.append("defparam uut.FEEDBACK_PATH = \"%s\";" % choice(["DELAY", "SIMPLE", "PHASE_AND_DELAY", "EXTERNAL"]))

    if choice([True, False]):
        pll_inst.append("defparam uut.DELAY_ADJUSTMENT_MODE_FEEDBACK = \"FIXED\";")
        pll_inst.append("defparam uut.FDA_FEEDBACK = 4'b%s;" %  randbin(4))
    else:
        pll_inst.append("defparam uut.DELAY_ADJUSTMENT_MODE_FEEDBACK = \"DYNAMIC\";")
        pll_inst.append("defparam uut.FDA_FEEDBACK = 4'b1111;")

    if choice([True, False]):
        pll_inst.append("defparam uut.DELAY_ADJUSTMENT_MODE_RELATIVE = \"FIXED\";")
        pll_inst.append("defparam uut.FDA_RELATIVE = 4'b%s;" %  randbin(4))
    else:
        pll_inst.append("defparam uut.DELAY_ADJUSTMENT_MODE_RELATIVE = \"DYNAMIC\";")
        pll_inst.append("defparam uut.FDA_RELATIVE = 4'b1111;")

    pll_inst.append("defparam uut.SHIFTREG_DIV_MODE = 1'b%s;" %  randbin(1))

    if pll_type.find("_2_") < 0 and pll_type.find("_2F_") < 0:
        pll_inst.append("defparam uut.PLLOUT_SELECT = \"%s\";" % choice(["GENCLK", "GENCLK_HALF", "SHIFTREG_90deg", "SHIFTREG_0deg"]))
    elif pll_type.find("_2F_") < 0:
        pll_inst.append("defparam uut.PLLOUT_SELECT_PORTB = \"%s\";" % choice(["GENCLK", "GENCLK_HALF", "SHIFTREG_90deg", "SHIFTREG_0deg"]))
    else:
        pll_inst.append("defparam uut.PLLOUT_SELECT_PORTA = \"%s\";" % choice(["GENCLK", "GENCLK_HALF", "SHIFTREG_90deg", "SHIFTREG_0deg"]))
        pll_inst.append("defparam uut.PLLOUT_SELECT_PORTB = \"%s\";" % choice(["GENCLK", "GENCLK_HALF", "SHIFTREG_90deg", "SHIFTREG_0deg"]))

    if pll_type.find("_2_") < 0 and pll_type.find("_2F_") < 0:
        pll_inst.append("defparam uut.ENABLE_ICEGATE = 1'b0;")
    else:
        pll_inst.append("defparam uut.ENABLE_ICEGATE_PORTA = 1'b0;")
        pll_inst.append("defparam uut.ENABLE_ICEGATE_PORTB = 1'b0;")

    pll_inst.append("defparam uut.TEST_MODE = 1'b0;")

    with open(working_dir + "/pll_%02d.v" % idx, "w") as f:
        print("module top(%s);" % ", ".join(pin_names), file=f)
        print("\n".join(vlog_body), file=f)
        print("\n".join(pll_inst), file=f)
        print("endmodule", file=f)

    with open(working_dir + "/pll_%02d.pcf" % idx, "w") as f:
        for pll_pin, package_pin in zip(pin_names, list(permutation(pins))[0:len(pin_names)]):
            if pll_pin == "packagepin": package_pin = "49"
            print("set_io %s %s" % (pll_pin, package_pin), file=f)


output_makefile(working_dir, "pll")