From 5c69da5d6db245dedab479509c0eaa8c1c80027c Mon Sep 17 00:00:00 2001 From: Florent Kermarrec Date: Mon, 24 Aug 2020 21:56:11 +0200 Subject: [PATCH] bench: add initial kcu105 bench target. --- bench/kcu105.py | 254 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 254 insertions(+) create mode 100755 bench/kcu105.py diff --git a/bench/kcu105.py b/bench/kcu105.py new file mode 100755 index 0000000..75329dc --- /dev/null +++ b/bench/kcu105.py @@ -0,0 +1,254 @@ +#!/usr/bin/env python3 + +# +# This file is part of LiteDRAM. +# +# Copyright (c) 2020 Florent Kermarrec +# SPDX-License-Identifier: BSD-2-Clause + +import os +import argparse + +from migen import * + +from litex.boards.platforms import kcu105 + +from litex.soc.cores.clock import * +from litex.soc.integration.soc_core import * +from litex.soc.integration.soc_sdram import * +from litex.soc.integration.builder import * +from litex.soc.cores.led import LedChaser + +from litedram.modules import EDY4016A +from litedram.phy import usddrphy + +from liteeth.phy.ku_1000basex import KU_1000BASEX + +# CRG ---------------------------------------------------------------------------------------------- + +class _CRG(Module): + def __init__(self, platform, sys_clk_freq): + self.clock_domains.cd_sys = ClockDomain() + self.clock_domains.cd_sys4x = ClockDomain(reset_less=True) + self.clock_domains.cd_pll4x = ClockDomain(reset_less=True) + self.clock_domains.cd_clk200 = ClockDomain() + + # # # + + self.submodules.pll = pll = USMMCM(speedgrade=-2) + self.comb += pll.reset.eq(platform.request("cpu_reset")) + pll.register_clkin(platform.request("clk125"), 125e6) + pll.create_clkout(self.cd_pll4x, sys_clk_freq*4, buf=None, with_reset=False) + pll.create_clkout(self.cd_clk200, 200e6, with_reset=False) + pll.expose_drp() + + self.specials += [ + Instance("BUFGCE_DIV", name="main_bufgce_div", + p_BUFGCE_DIVIDE=4, + i_CE=1, i_I=self.cd_pll4x.clk, o_O=self.cd_sys.clk), + Instance("BUFGCE", name="main_bufgce", + i_CE=1, i_I=self.cd_pll4x.clk, o_O=self.cd_sys4x.clk), + AsyncResetSynchronizer(self.cd_clk200, ~pll.locked), + ] + + self.submodules.idelayctrl = USIDELAYCTRL(cd_ref=self.cd_clk200, cd_sys=self.cd_sys) + + sys_clk_counter = Signal(32) + self.sync += sys_clk_counter.eq(sys_clk_counter + 1) + self.sys_clk_counter = CSRStatus(32) + self.comb += self.sys_clk_counter.status.eq(sys_clk_counter) + +# Bench SoC ---------------------------------------------------------------------------------------- + +class BenchSoC(SoCCore): + def __init__(self, sys_clk_freq=int(125e6)): + platform = kcu105.Platform() + + # SoCCore ---------------------------------------------------------------------------------- + SoCCore.__init__(self, platform, sys_clk_freq, + integrated_rom_size = 0x8000, + integrated_rom_mode = "rw", + csr_data_width = 32, + uart_name = "crossover") + + # CRG -------------------------------------------------------------------------------------- + self.submodules.crg = _CRG(platform, sys_clk_freq) + + # DDR4 SDRAM ------------------------------------------------------------------------------- + self.submodules.ddrphy = usddrphy.USDDRPHY(platform.request("ddram"), + memtype = "DDR4", + sys_clk_freq = sys_clk_freq, + iodelay_clk_freq = 200e6, + cmd_latency = 1) + self.add_csr("ddrphy") + self.add_sdram("sdram", + phy = self.ddrphy, + module = EDY4016A(sys_clk_freq, "1:4"), + origin = self.mem_map["main_ram"], + size = 0x40000000, + ) + + # Ethebone --------------------------------------------------------------------------------- + self.submodules.ethphy = KU_1000BASEX(self.crg.cd_clk200.clk, + data_pads = self.platform.request("sfp", 0), + sys_clk_freq = self.clk_freq) + self.add_csr("ethphy") + self.comb += self.platform.request("sfp_tx_disable_n", 0).eq(1) + self.platform.add_platform_command("set_property SEVERITY {{Warning}} [get_drc_checks REQP-1753]") + self.add_etherbone(phy=self.ethphy) + + # Leds ------------------------------------------------------------------------------------- + self.submodules.leds = LedChaser( + pads = platform.request_all("user_led"), + sys_clk_freq = sys_clk_freq) + self.add_csr("leds") + +# Bench Test --------------------------------------------------------------------------------------- + +def bench_test(): + import time + from litex import RemoteClient + + wb = RemoteClient() + wb.open() + + # # # + + class SoCCtrl: + @staticmethod + def reboot(): + wb.regs.ctrl_reset.write(1) + + @staticmethod + def load_rom(filename): + from litex.soc.integration.common import get_mem_data + rom_data = get_mem_data(filename, "little") + for i, data in enumerate(rom_data): + wb.write(wb.mems.rom.base + 4*i) + + class ClkReg1: + def __init__(self, value=0): + self.unpack(value) + + def unpack(self, value): + self.low_time = (value >> 0) & (2**6 - 1) + self.high_time = (value >> 6) & (2**6 - 1) + self.reserved = (value >> 12) & (2**1 - 1) + self.phase_mux = (value >> 13) & (2**3 - 1) + + def pack(self): + value = (self.low_time << 0) + value |= (self.high_time << 6) + value |= (self.reserved << 12) + value |= (self.phase_mux << 13) + return value + + def __repr__(self): + s = "ClkReg1:\n" + s += " low_time: {:d}\n".format(self.low_time) + s += " high_time: {:d}\n".format(self.high_time) + s += " reserved: {:d}\n".format(self.reserved) + s += " phase_mux: {:d}".format(self.phase_mux) + return s + + class ClkReg2: + def __init__(self, value = 0): + self.unpack(value) + + def unpack(self, value): + self.delay_time = (value >> 0) & (2**6 - 1) + self.no_count = (value >> 6) & (2**1 - 1) + self.edge = (value >> 7) & (2**1 - 1) + self.mx = (value >> 8) & (2**2 - 1) + self.frac_wf_r = (value >> 10) & (2**1 - 1) + self.frac_en = (value >> 11) & (2**1 - 1) + self.frac = (value >> 12) & (2**3 - 1) + self.reserved = (value >> 15) & (2**1 - 1) + + def pack(self): + value = (self.delay_time << 0) + value |= (self.no_count << 6) + value |= (self.edge << 7) + value |= (self.mx << 8) + value |= (self.frac_wf_r << 10) + value |= (self.frac_en << 11) + value |= (self.frac << 12) + value |= (self.reserved << 15) + return value + + def __repr__(self): + s = "ClkReg2:\n" + s += " delay_time: {:d}\n".format(self.delay_time) + s += " no_count: {:d}\n".format(self.no_count) + s += " edge: {:d}\n".format(self.edge) + s += " mx: {:d}\n".format(self.mx) + s += " frac_wf_r: {:d}\n".format(self.frac_wf_r) + s += " frac_en: {:d}\n".format(self.frac_en) + s += " frac: {:d}\n".format(self.frac) + s += " reserved: {:d}".format(self.reserved) + return s + + class USPLL: + def reset(self): + wb.regs.crg_main_pll_drp_reset.write(1) + + def read(self, adr): + wb.regs.crg_main_pll_drp_adr.write(adr) + wb.regs.crg_main_pll_drp_read.write(1) + return wb.regs.crg_main_pll_drp_dat_r.read() + + def write(self, adr, value): + wb.regs.crg_main_pll_drp_adr.write(adr) + wb.regs.crg_main_pll_drp_dat_w.write(value) + wb.regs.crg_main_pll_drp_write.write(1) + + # # # + + ctrl = SoCCtrl() + ctrl.load_rom("build/kcu105/software/bios/bios.bin") + ctrl.reset() + + vco_freq = 1e9 + + uspll = USPLL() + + print("Dump Main PLL...") + clkout0_clkreg1 = ClkReg1(uspll.read(0x08)) + print(clkout0_clkreg1) + + # TODO: add dynamic freq test. + + print("Reset SoC and get BIOS log...") + ctrl.reset() + start = time.time() + while (time.time() - start) < 5: + if wb.regs.uart_xover_rxempty.read() == 0: + print("{:c}".format(wb.regs.uart_xover_rxtx.read()), end="") + + # # # + + wb.close() + +# Main --------------------------------------------------------------------------------------------- + +def main(): + parser = argparse.ArgumentParser(description="LiteDRAM Bench on KCU105") + parser.add_argument("--build", action="store_true", help="Build bitstream") + parser.add_argument("--load", action="store_true", help="Load bitstream") + parser.add_argument("--test", action="store_true", help="Run Test") + args = parser.parse_args() + + if args.build or args.load: + soc = BenchSoC() + builder = Builder(soc, csr_csv="csr.csv") + builder.build(run=args.build) + + if args.load: + prog = soc.platform.create_programmer() + prog.load_bitstream(os.path.join(builder.gateware_dir, soc.build_name + ".bit")) + + if args.test: + bench_test() + +if __name__ == "__main__": + main()