From 19b1cc2529d2d09a7bf7a6b8ac5f50ac8419469a Mon Sep 17 00:00:00 2001 From: Sebastien Bourdeauducq Date: Mon, 2 Apr 2012 19:22:17 +0200 Subject: [PATCH] Remove uses of pads, new constraints system --- constraints.py | 129 +++++++++++++++++---------------- milkymist/m1crg/__init__.py | 3 +- milkymist/norflash/__init__.py | 2 +- milkymist/s6ddrphy/__init__.py | 21 ++---- milkymist/uart/__init__.py | 2 +- top.py | 7 +- 6 files changed, 81 insertions(+), 83 deletions(-) diff --git a/constraints.py b/constraints.py index 075a955e..1214a60b 100644 --- a/constraints.py +++ b/constraints.py @@ -1,64 +1,69 @@ -def get(ns, crg0, norflash0, uart0, ddrphy0): - constraints = [] - def add(signal, pin, vec=-1, iostandard="LVCMOS33", extra=""): - constraints.append((ns.get_name(signal), vec, pin, iostandard, extra)) - def add_vec(signal, pins, iostandard="LVCMOS33", extra=""): - assert(signal.bv.width == len(pins)) - i = 0 - for p in pins: - add(signal, p, i, iostandard, extra) - i += 1 - - add(crg0.clkin, "AB11", extra="TNM_NET = \"GRPclk50\"") - add(crg0.ac97_rst_n, "D6") - add(crg0.videoin_rst_n, "W17") - add(crg0.flash_rst_n, "P22", extra="SLEW = FAST | DRIVE = 8") - add(crg0.trigger_reset, "AA4") - - add_vec(norflash0.adr, ["L22", "L20", "K22", "K21", "J19", "H20", "F22", - "F21", "K17", "J17", "E22", "E20", "H18", "H19", "F20", - "G19", "C22", "C20", "D22", "D21", "F19", "F18", "D20", "D19"], - extra="SLEW = FAST | DRIVE = 8") - add_vec(norflash0.d, ["AA20", "U14", "U13", "AA6", "AB6", "W4", "Y4", "Y7", - "AA2", "AB2", "V15", "AA18", "AB18", "Y13", "AA12", "AB12"], - extra="SLEW = FAST | DRIVE = 8 | PULLDOWN") - add(norflash0.oe_n, "M22", extra="SLEW = FAST | DRIVE = 8") - add(norflash0.we_n, "N20", extra="SLEW = FAST | DRIVE = 8") - add(norflash0.ce_n, "M21", extra="SLEW = FAST | DRIVE = 8") - - add(uart0.tx, "L17", extra="SLEW = SLOW") - add(uart0.rx, "K18", extra="PULLUP") - - ddrsettings = "IOSTANDARD = SSTL2_I" - add(ddrphy0.sd_clk_out_p, "M3", extra=ddrsettings) - add(ddrphy0.sd_clk_out_n, "L4", extra=ddrsettings) - add_vec(ddrphy0.sd_a, ["B1", "B2", "H8", "J7", "E4", "D5", "K7", "F5", - "G6", "C1", "C3", "D1", "D2"], extra=ddrsettings) - add_vec(ddrphy0.sd_ba, ["A2", "E6"], extra=ddrsettings) - add(ddrphy0.sd_cs_n, "F7", extra=ddrsettings) - add(ddrphy0.sd_cke, "G7", extra=ddrsettings) - add(ddrphy0.sd_ras_n, "E5", extra=ddrsettings) - add(ddrphy0.sd_cas_n, "C4", extra=ddrsettings) - add(ddrphy0.sd_we_n, "D3", extra=ddrsettings) - add_vec(ddrphy0.sd_dq, ["Y2", "W3", "W1", "P8", "P7", "P6", "P5", "T4", "T3", - "U4", "V3", "N6", "N7", "M7", "M8", "R4", "P4", "M6", "L6", "P3", "N4", - "M5", "V2", "V1", "U3", "U1", "T2", "T1", "R3", "R1", "P2", "P1"], - extra=ddrsettings) - add_vec(ddrphy0.sd_dm, ["E1", "E3", "F3", "G4"], extra=ddrsettings) - add_vec(ddrphy0.sd_dqs, ["F1", "F2", "H5", "H6"], extra=ddrsettings) - - r = "" - for c in constraints: - r += "NET \"" + c[0] - if c[1] >= 0: - r += "(" + str(c[1]) + ")" - r += "\" LOC = " + c[2] - r += " | IOSTANDARD = " + c[3] - if c[4]: - r += " | " + c[4] - r += ";\n" - - r += """ +class Constraints: + def __init__(self, crg0, norflash0, uart0, ddrphy0): + self.constraints = [] + def add(signal, pin, vec=-1, iostandard="LVCMOS33", extra=""): + self.constraints.append((signal, vec, pin, iostandard, extra)) + def add_vec(signal, pins, iostandard="LVCMOS33", extra=""): + assert(signal.bv.width == len(pins)) + i = 0 + for p in pins: + add(signal, p, i, iostandard, extra) + i += 1 + + add(crg0.clkin, "AB11", extra="TNM_NET = \"GRPclk50\"") + add(crg0.ac97_rst_n, "D6") + add(crg0.videoin_rst_n, "W17") + add(crg0.flash_rst_n, "P22", extra="SLEW = FAST | DRIVE = 8") + add(crg0.trigger_reset, "AA4") + + add_vec(norflash0.adr, ["L22", "L20", "K22", "K21", "J19", "H20", "F22", + "F21", "K17", "J17", "E22", "E20", "H18", "H19", "F20", + "G19", "C22", "C20", "D22", "D21", "F19", "F18", "D20", "D19"], + extra="SLEW = FAST | DRIVE = 8") + add_vec(norflash0.d, ["AA20", "U14", "U13", "AA6", "AB6", "W4", "Y4", "Y7", + "AA2", "AB2", "V15", "AA18", "AB18", "Y13", "AA12", "AB12"], + extra="SLEW = FAST | DRIVE = 8 | PULLDOWN") + add(norflash0.oe_n, "M22", extra="SLEW = FAST | DRIVE = 8") + add(norflash0.we_n, "N20", extra="SLEW = FAST | DRIVE = 8") + add(norflash0.ce_n, "M21", extra="SLEW = FAST | DRIVE = 8") + + add(uart0.tx, "L17", extra="SLEW = SLOW") + add(uart0.rx, "K18", extra="PULLUP") + + ddrsettings = "IOSTANDARD = SSTL2_I" + add(ddrphy0.sd_clk_out_p, "M3", extra=ddrsettings) + add(ddrphy0.sd_clk_out_n, "L4", extra=ddrsettings) + add_vec(ddrphy0.sd_a, ["B1", "B2", "H8", "J7", "E4", "D5", "K7", "F5", + "G6", "C1", "C3", "D1", "D2"], extra=ddrsettings) + add_vec(ddrphy0.sd_ba, ["A2", "E6"], extra=ddrsettings) + add(ddrphy0.sd_cs_n, "F7", extra=ddrsettings) + add(ddrphy0.sd_cke, "G7", extra=ddrsettings) + add(ddrphy0.sd_ras_n, "E5", extra=ddrsettings) + add(ddrphy0.sd_cas_n, "C4", extra=ddrsettings) + add(ddrphy0.sd_we_n, "D3", extra=ddrsettings) + add_vec(ddrphy0.sd_dq, ["Y2", "W3", "W1", "P8", "P7", "P6", "P5", "T4", "T3", + "U4", "V3", "N6", "N7", "M7", "M8", "R4", "P4", "M6", "L6", "P3", "N4", + "M5", "V2", "V1", "U3", "U1", "T2", "T1", "R3", "R1", "P2", "P1"], + extra=ddrsettings) + add_vec(ddrphy0.sd_dm, ["E1", "E3", "F3", "G4"], extra=ddrsettings) + add_vec(ddrphy0.sd_dqs, ["F1", "F2", "H5", "H6"], extra=ddrsettings) + + def get_ios(self): + return set([c[0] for c in self.constraints]) + + def get_ucf(self, ns): + r = "" + for c in self.constraints: + r += "NET \"" + ns.get_name(c[0]) + if c[1] >= 0: + r += "(" + str(c[1]) + ")" + r += "\" LOC = " + c[2] + r += " | IOSTANDARD = " + c[3] + if c[4]: + r += " | " + c[4] + r += ";\n" + + r += """ TIMESPEC "TSclk50" = PERIOD "GRPclk50" 20 ns HIGH 50%; INST "m1crg/wr_bufpll" LOC = "BUFPLL_X0Y2"; INST "m1crg/rd_bufpll" LOC = "BUFPLL_X0Y3"; @@ -66,4 +71,4 @@ INST "m1crg/rd_bufpll" LOC = "BUFPLL_X0Y3"; PIN "m1crg/bufg_x1.O" CLOCK_DEDICATED_ROUTE = FALSE; """ - return r + return r diff --git a/milkymist/m1crg/__init__.py b/milkymist/m1crg/__init__.py index 83d7e28b..a355f2ed 100644 --- a/milkymist/m1crg/__init__.py +++ b/milkymist/m1crg/__init__.py @@ -41,5 +41,4 @@ class M1CRG: ) def get_fragment(self): - return Fragment(instances=[self._inst], - pads={self.clkin, self.ac97_rst_n, self.videoin_rst_n, self.flash_rst_n}) + return Fragment(instances=[self._inst]) diff --git a/milkymist/norflash/__init__.py b/milkymist/norflash/__init__.py index 47d9e3f8..02b75ad1 100644 --- a/milkymist/norflash/__init__.py +++ b/milkymist/norflash/__init__.py @@ -28,4 +28,4 @@ class NorFlash: (2*self.rd_timing + 1, [ self.bus.ack.eq(0)]) ]) - return Fragment(comb, sync, pads={self.adr, self.d, self.oe_n, self.we_n, self.ce_n}) + return Fragment(comb, sync) diff --git a/milkymist/s6ddrphy/__init__.py b/milkymist/s6ddrphy/__init__.py index ea658717..8a495c9d 100644 --- a/milkymist/s6ddrphy/__init__.py +++ b/milkymist/s6ddrphy/__init__.py @@ -7,19 +7,13 @@ class S6DDRPHY: outs = [] inouts = [] - for name in [ - "clk2x_270", - "clk4x_wr", - "clk4x_wr_strb", - "clk4x_rd", - "clk4x_rd_strb" - ]: - s = Signal(name=name) - setattr(self, name, s) - ins.append((name, s)) - - self._sd_pins = [] for name, width, l in [ + ("clk2x_270", 1, ins), + ("clk4x_wr", 1, ins), + ("clk4x_wr_strb", 1, ins), + ("clk4x_rd", 1, ins), + ("clk4x_rd_strb", 1, ins), + ("sd_clk_out_p", 1, outs), ("sd_clk_out_n", 1, outs), ("sd_a", a, outs), @@ -37,7 +31,6 @@ class S6DDRPHY: s = Signal(BV(width), name=name) setattr(self, name, s) l.append((name, s)) - self._sd_pins.append(s) self.dfi = dfi.Interface(a, ba, d, 2) ins += self.dfi.get_standard_names(True, False) @@ -55,4 +48,4 @@ class S6DDRPHY: clkport="sys_clk") def get_fragment(self): - return Fragment(instances=[self._inst], pads=set(self._sd_pins)) + return Fragment(instances=[self._inst]) diff --git a/milkymist/uart/__init__.py b/milkymist/uart/__init__.py index 3d052619..e59a2b79 100644 --- a/milkymist/uart/__init__.py +++ b/milkymist/uart/__init__.py @@ -107,4 +107,4 @@ class UART: return self.bank.get_fragment() \ + self.events.get_fragment() \ - + Fragment(comb, sync, pads={self.tx, self.rx}) + + Fragment(comb, sync) diff --git a/top.py b/top.py index 528cf5ce..2c23b0c5 100644 --- a/top.py +++ b/top.py @@ -6,7 +6,7 @@ from migen.fhdl import verilog, autofragment from migen.bus import wishbone, wishbone2asmi, csr, wishbone2csr, dfi from milkymist import m1crg, lm32, norflash, uart, sram, s6ddrphy, dfii, asmicon -import constraints +from constraints import Constraints MHz = 1000000 clk_freq = (83 + Fraction(1, 3))*MHz @@ -122,11 +122,12 @@ def get(): crg0 = m1crg.M1CRG(50*MHz, clk_freq) frag = autofragment.from_local() + interrupts + ddrphy_clocking(crg0, ddrphy0) + cst = Constraints(crg0, norflash0, uart0, ddrphy0) src_verilog, vns = verilog.convert(frag, - {crg0.trigger_reset}, + cst.get_ios(), name="soc", clk_signal=crg0.sys_clk, rst_signal=crg0.sys_rst, return_ns=True) - src_ucf = constraints.get(vns, crg0, norflash0, uart0, ddrphy0) + src_ucf = cst.get_ucf(vns) return (src_verilog, src_ucf) -- 2.30.2