From ebdbaaad3250778dd6570fc17db22e2851b3ce2b Mon Sep 17 00:00:00 2001 From: Sebastien Bourdeauducq Date: Fri, 22 Dec 2017 17:51:42 +0800 Subject: [PATCH] drtio: remove KC705/GTX support --- .../gateware/drtio/transceiver/gtx_7series.py | 265 ------------------ .../drtio/transceiver/gtx_7series_init.py | 226 --------------- artiq/gateware/targets/kc705_drtio_master.py | 116 -------- .../gateware/targets/kc705_drtio_satellite.py | 114 -------- 4 files changed, 721 deletions(-) delete mode 100644 artiq/gateware/drtio/transceiver/gtx_7series.py delete mode 100644 artiq/gateware/drtio/transceiver/gtx_7series_init.py delete mode 100755 artiq/gateware/targets/kc705_drtio_master.py delete mode 100755 artiq/gateware/targets/kc705_drtio_satellite.py diff --git a/artiq/gateware/drtio/transceiver/gtx_7series.py b/artiq/gateware/drtio/transceiver/gtx_7series.py deleted file mode 100644 index 7b6cfaecf..000000000 --- a/artiq/gateware/drtio/transceiver/gtx_7series.py +++ /dev/null @@ -1,265 +0,0 @@ -from migen import * -from migen.genlib.resetsync import AsyncResetSynchronizer - -from misoc.cores.code_8b10b import Encoder, Decoder -from misoc.interconnect.csr import * - -from artiq.gateware.drtio.core import TransceiverInterface, ChannelInterface -from artiq.gateware.drtio.transceiver.gtx_7series_init import * - - -class GTX_20X(Module, TransceiverInterface): - # Only one channel is supported. - # - # The transceiver clock on clock_pads must be at the RTIO clock - # frequency when clock_div2=False, and 2x that frequency when - # clock_div2=True. - def __init__(self, clock_pads, tx_pads, rx_pads, sys_clk_freq, - clock_div2=False): - encoder = ClockDomainsRenamer("rtio")( - Encoder(2, True)) - self.submodules += encoder - decoders = [ClockDomainsRenamer("rtio_rx0")( - (Decoder(True))) for _ in range(2)] - self.submodules += decoders - - TransceiverInterface.__init__(self, [ChannelInterface(encoder, decoders)]) - - # transceiver direct clock outputs - # useful to specify clock constraints in a way palatable to Vivado - self.txoutclk = Signal() - self.rxoutclk = Signal() - - # # # - - refclk = Signal() - if clock_div2: - self.specials += Instance("IBUFDS_GTE2", - i_CEB=0, - i_I=clock_pads.p, - i_IB=clock_pads.n, - o_ODIV2=refclk - ) - else: - self.specials += Instance("IBUFDS_GTE2", - i_CEB=0, - i_I=clock_pads.p, - i_IB=clock_pads.n, - o_O=refclk - ) - - cplllock = Signal() - # TX generates RTIO clock, init must be in system domain - tx_init = GTXInit(sys_clk_freq, False) - # RX receives restart commands from RTIO domain - rx_init = ClockDomainsRenamer("rtio")( - GTXInit(self.rtio_clk_freq, True)) - self.submodules += tx_init, rx_init - self.comb += tx_init.cplllock.eq(cplllock), \ - rx_init.cplllock.eq(cplllock) - - txdata = Signal(20) - rxdata = Signal(20) - self.specials += \ - Instance("GTXE2_CHANNEL", - # PMA Attributes - p_PMA_RSV=0x00018480, - p_PMA_RSV2=0x2050, - p_PMA_RSV3=0, - p_PMA_RSV4=0, - p_RX_BIAS_CFG=0b100, - p_RX_CM_TRIM=0b010, - p_RX_OS_CFG=0b10000000, - p_RX_CLK25_DIV=5, - p_TX_CLK25_DIV=5, - - # Power-Down Attributes - p_PD_TRANS_TIME_FROM_P2=0x3c, - p_PD_TRANS_TIME_NONE_P2=0x3c, - p_PD_TRANS_TIME_TO_P2=0x64, - - # CPLL - p_CPLL_CFG=0xBC07DC, - p_CPLL_FBDIV=4, - p_CPLL_FBDIV_45=5, - p_CPLL_REFCLK_DIV=1, - p_RXOUT_DIV=2, - p_TXOUT_DIV=2, - o_CPLLLOCK=cplllock, - i_CPLLLOCKEN=1, - i_CPLLREFCLKSEL=0b001, - i_TSTIN=2**20-1, - i_GTREFCLK0=refclk, - - # TX clock - p_TXBUF_EN="FALSE", - p_TX_XCLK_SEL="TXUSR", - o_TXOUTCLK=self.txoutclk, - i_TXSYSCLKSEL=0b00, - i_TXOUTCLKSEL=0b11, - - # TX Startup/Reset - i_GTTXRESET=tx_init.gtXxreset, - o_TXRESETDONE=tx_init.Xxresetdone, - i_TXDLYSRESET=tx_init.Xxdlysreset, - o_TXDLYSRESETDONE=tx_init.Xxdlysresetdone, - o_TXPHALIGNDONE=tx_init.Xxphaligndone, - i_TXUSERRDY=tx_init.Xxuserrdy, - - # TX data - p_TX_DATA_WIDTH=20, - p_TX_INT_DATAWIDTH=0, - i_TXCHARDISPMODE=Cat(txdata[9], txdata[19]), - i_TXCHARDISPVAL=Cat(txdata[8], txdata[18]), - i_TXDATA=Cat(txdata[:8], txdata[10:18]), - i_TXUSRCLK=ClockSignal("rtio"), - i_TXUSRCLK2=ClockSignal("rtio"), - - # TX electrical - i_TXBUFDIFFCTRL=0b100, - i_TXDIFFCTRL=0b1000, - - # RX Startup/Reset - i_GTRXRESET=rx_init.gtXxreset, - o_RXRESETDONE=rx_init.Xxresetdone, - i_RXDLYSRESET=rx_init.Xxdlysreset, - o_RXDLYSRESETDONE=rx_init.Xxdlysresetdone, - o_RXPHALIGNDONE=rx_init.Xxphaligndone, - i_RXUSERRDY=rx_init.Xxuserrdy, - - # RX AFE - p_RX_DFE_XYD_CFG=0, - i_RXDFEXYDEN=1, - i_RXDFEXYDHOLD=0, - i_RXDFEXYDOVRDEN=0, - i_RXLPMEN=0, - - # RX clock - p_RXBUF_EN="FALSE", - p_RX_XCLK_SEL="RXUSR", - i_RXDDIEN=1, - i_RXSYSCLKSEL=0b00, - i_RXOUTCLKSEL=0b010, - o_RXOUTCLK=self.rxoutclk, - i_RXUSRCLK=ClockSignal("rtio_rx0"), - i_RXUSRCLK2=ClockSignal("rtio_rx0"), - p_RXCDR_CFG=0x03000023FF10100020, - - # RX Clock Correction Attributes - p_CLK_CORRECT_USE="FALSE", - p_CLK_COR_SEQ_1_1=0b0100000000, - p_CLK_COR_SEQ_2_1=0b0100000000, - p_CLK_COR_SEQ_1_ENABLE=0b1111, - p_CLK_COR_SEQ_2_ENABLE=0b1111, - - # RX data - p_RX_DATA_WIDTH=20, - p_RX_INT_DATAWIDTH=0, - o_RXDISPERR=Cat(rxdata[9], rxdata[19]), - o_RXCHARISK=Cat(rxdata[8], rxdata[18]), - o_RXDATA=Cat(rxdata[:8], rxdata[10:18]), - - # Pads - i_GTXRXP=rx_pads.p, - i_GTXRXN=rx_pads.n, - o_GTXTXP=tx_pads.p, - o_GTXTXN=tx_pads.n, - ) - - tx_reset_deglitched = Signal() - tx_reset_deglitched.attr.add("no_retiming") - self.sync += tx_reset_deglitched.eq(~tx_init.done) - self.specials += [ - Instance("BUFG", i_I=self.txoutclk, o_O=self.cd_rtio.clk), - AsyncResetSynchronizer(self.cd_rtio, tx_reset_deglitched) - ] - rx_reset_deglitched = Signal() - rx_reset_deglitched.attr.add("no_retiming") - self.sync.rtio += rx_reset_deglitched.eq(~rx_init.done) - self.specials += [ - Instance("BUFG", i_I=self.rxoutclk, o_O=self.cd_rtio_rx0.clk), - AsyncResetSynchronizer(self.cd_rtio_rx0, rx_reset_deglitched) - ] - - chan = self.channels[0] - self.comb += [ - txdata.eq(Cat(chan.encoder.output[0], chan.encoder.output[1])), - chan.decoders[0].input.eq(rxdata[:10]), - chan.decoders[1].input.eq(rxdata[10:]) - ] - - clock_aligner = ClockDomainsRenamer({"rtio_rx": "rtio_rx0"})( - BruteforceClockAligner(0b0101111100, self.rtio_clk_freq)) - self.submodules += clock_aligner - self.comb += [ - clock_aligner.rxdata.eq(rxdata), - rx_init.restart.eq(clock_aligner.restart), - chan.rx_ready.eq(clock_aligner.ready) - ] - - -class GTX_1000BASE_BX10(GTX_20X): - rtio_clk_freq = 62.5e6 - - -class RXSynchronizer(Module, AutoCSR): - """Delays the data received in the rtio_rx domain by a configurable amount - so that it meets s/h in the rtio domain, and recapture it in the rtio - domain. This has fixed latency. - - Since Xilinx doesn't provide decent on-chip delay lines, we implement the - delay with MMCM that provides a clock and a finely configurable phase, used - to resample the data. - - The phase has to be determined either empirically or by making sense of the - Xilinx scriptures (when existent) and should be constant for a given design - placement. - """ - def __init__(self, rtio_clk_freq, initial_phase=0.0): - self.phase_shift = CSR() - self.phase_shift_done = CSRStatus() - - self.clock_domains.cd_rtio_delayed = ClockDomain() - - mmcm_output = Signal() - mmcm_fb = Signal() - mmcm_locked = Signal() - # maximize VCO frequency to maximize phase shift resolution - mmcm_mult = 1200e6//rtio_clk_freq - self.specials += [ - Instance("MMCME2_ADV", - p_CLKIN1_PERIOD=1e9/rtio_clk_freq, - i_CLKIN1=ClockSignal("rtio_rx"), - i_RST=ResetSignal("rtio_rx"), - i_CLKINSEL=1, # yes, 1=CLKIN1 0=CLKIN2 - - p_CLKFBOUT_MULT_F=mmcm_mult, - p_CLKOUT0_DIVIDE_F=mmcm_mult, - p_CLKOUT0_PHASE=initial_phase, - p_DIVCLK_DIVIDE=1, - - # According to Xilinx, there is no guarantee of input/output - # phase relationship when using internal feedback. We assume - # here that the input/ouput skew is constant to save BUFGs. - o_CLKFBOUT=mmcm_fb, - i_CLKFBIN=mmcm_fb, - - p_CLKOUT0_USE_FINE_PS="TRUE", - o_CLKOUT0=mmcm_output, - o_LOCKED=mmcm_locked, - - i_PSCLK=ClockSignal(), - i_PSEN=self.phase_shift.re, - i_PSINCDEC=self.phase_shift.r, - o_PSDONE=self.phase_shift_done.status, - ), - Instance("BUFR", i_I=mmcm_output, o_O=self.cd_rtio_delayed.clk), - AsyncResetSynchronizer(self.cd_rtio_delayed, ~mmcm_locked) - ] - - def resync(self, signal): - delayed = Signal.like(signal, related=signal) - synchronized = Signal.like(signal, related=signal) - self.sync.rtio_delayed += delayed.eq(signal) - self.sync.rtio += synchronized.eq(delayed) - return synchronized diff --git a/artiq/gateware/drtio/transceiver/gtx_7series_init.py b/artiq/gateware/drtio/transceiver/gtx_7series_init.py deleted file mode 100644 index 2b7ae39bc..000000000 --- a/artiq/gateware/drtio/transceiver/gtx_7series_init.py +++ /dev/null @@ -1,226 +0,0 @@ -from math import ceil -from functools import reduce -from operator import add - -from migen import * -from migen.genlib.cdc import MultiReg, PulseSynchronizer -from migen.genlib.misc import WaitTimer -from migen.genlib.fsm import FSM - - -class GTXInit(Module): - # Based on LiteSATA by Enjoy-Digital - def __init__(self, sys_clk_freq, rx): - self.done = Signal() - self.restart = Signal() - - # GTX signals - self.cplllock = Signal() - self.gtXxreset = Signal() - self.Xxresetdone = Signal() - self.Xxdlysreset = Signal() - self.Xxdlysresetdone = Signal() - self.Xxphaligndone = Signal() - self.Xxuserrdy = Signal() - - # # # - - # Double-latch transceiver asynch outputs - cplllock = Signal() - Xxresetdone = Signal() - Xxdlysresetdone = Signal() - Xxphaligndone = Signal() - self.specials += [ - MultiReg(self.cplllock, cplllock), - MultiReg(self.Xxresetdone, Xxresetdone), - MultiReg(self.Xxdlysresetdone, Xxdlysresetdone), - MultiReg(self.Xxphaligndone, Xxphaligndone), - ] - - # Deglitch FSM outputs driving transceiver asynch inputs - gtXxreset = Signal() - Xxdlysreset = Signal() - Xxuserrdy = Signal() - self.sync += [ - self.gtXxreset.eq(gtXxreset), - self.Xxdlysreset.eq(Xxdlysreset), - self.Xxuserrdy.eq(Xxuserrdy) - ] - - # After configuration, transceiver resets have to stay low for - # at least 500ns (see AR43482) - startup_cycles = ceil(500*sys_clk_freq/1000000000) - startup_timer = WaitTimer(startup_cycles) - self.submodules += startup_timer - - startup_fsm = FSM(reset_state="INITIAL") - self.submodules += startup_fsm - - if rx: - cdr_stable_timer = WaitTimer(1024) - self.submodules += cdr_stable_timer - - Xxphaligndone_r = Signal(reset=1) - Xxphaligndone_rising = Signal() - self.sync += Xxphaligndone_r.eq(Xxphaligndone) - self.comb += Xxphaligndone_rising.eq(Xxphaligndone & ~Xxphaligndone_r) - - startup_fsm.act("INITIAL", - startup_timer.wait.eq(1), - If(startup_timer.done, NextState("RESET_GTX")) - ) - startup_fsm.act("RESET_GTX", - gtXxreset.eq(1), - NextState("WAIT_CPLL") - ) - startup_fsm.act("WAIT_CPLL", - gtXxreset.eq(1), - If(cplllock, NextState("RELEASE_RESET")) - ) - # Release GTX reset and wait for GTX resetdone - # (from UG476, GTX is reset on falling edge - # of gttxreset) - if rx: - startup_fsm.act("RELEASE_RESET", - Xxuserrdy.eq(1), - cdr_stable_timer.wait.eq(1), - If(Xxresetdone & cdr_stable_timer.done, NextState("ALIGN")) - ) - else: - startup_fsm.act("RELEASE_RESET", - Xxuserrdy.eq(1), - If(Xxresetdone, NextState("ALIGN")) - ) - # Start delay alignment (pulse) - startup_fsm.act("ALIGN", - Xxuserrdy.eq(1), - Xxdlysreset.eq(1), - NextState("WAIT_ALIGN") - ) - # Wait for delay alignment - startup_fsm.act("WAIT_ALIGN", - Xxuserrdy.eq(1), - If(Xxdlysresetdone, NextState("WAIT_FIRST_ALIGN_DONE")) - ) - # Wait 2 rising edges of rxphaligndone - # (from UG476 in buffer bypass config) - startup_fsm.act("WAIT_FIRST_ALIGN_DONE", - Xxuserrdy.eq(1), - If(Xxphaligndone_rising, NextState("WAIT_SECOND_ALIGN_DONE")) - ) - startup_fsm.act("WAIT_SECOND_ALIGN_DONE", - Xxuserrdy.eq(1), - If(Xxphaligndone_rising, NextState("READY")) - ) - startup_fsm.act("READY", - Xxuserrdy.eq(1), - self.done.eq(1), - If(self.restart, NextState("RESET_GTX")) - ) - - -# Changes the phase of the transceiver RX clock to align the comma to -# the LSBs of RXDATA, fixing the latency. -# -# This is implemented by repeatedly resetting the transceiver until it -# gives out the correct phase. Each reset gives a random phase. -# -# If Xilinx had designed the GTX transceiver correctly, RXSLIDE_MODE=PMA -# would achieve this faster and in a cleaner way. But: -# * the phase jumps are of 2 UI at every second RXSLIDE pulse, instead -# of 1 UI at every pulse. It is unclear what the latency becomes. -# * RXSLIDE_MODE=PMA cannot be used with the RX buffer bypassed. -# Those design flaws make RXSLIDE_MODE=PMA yet another broken and useless -# transceiver "feature". -# -# Warning: Xilinx transceivers are LSB first, and comma needs to be flipped -# compared to the usual 8b10b binary representation. -class BruteforceClockAligner(Module): - def __init__(self, comma, rtio_clk_freq, check_period=6e-3): - self.rxdata = Signal(20) - self.restart = Signal() - - self.ready = Signal() - - check_max_val = ceil(check_period*rtio_clk_freq) - check_counter = Signal(max=check_max_val+1) - check = Signal() - reset_check_counter = Signal() - self.sync.rtio += [ - check.eq(0), - If(reset_check_counter, - check_counter.eq(check_max_val) - ).Else( - If(check_counter == 0, - check.eq(1), - check_counter.eq(check_max_val) - ).Else( - check_counter.eq(check_counter-1) - ) - ) - ] - - checks_reset = PulseSynchronizer("rtio", "rtio_rx") - self.submodules += checks_reset - - comma_n = ~comma & 0b1111111111 - comma_seen_rxclk = Signal() - comma_seen = Signal() - comma_seen_rxclk.attr.add("no_retiming") - self.specials += MultiReg(comma_seen_rxclk, comma_seen) - self.sync.rtio_rx += \ - If(checks_reset.o, - comma_seen_rxclk.eq(0) - ).Elif((self.rxdata[:10] == comma) | (self.rxdata[:10] == comma_n), - comma_seen_rxclk.eq(1) - ) - - error_seen_rxclk = Signal() - error_seen = Signal() - error_seen_rxclk.attr.add("no_retiming") - self.specials += MultiReg(error_seen_rxclk, error_seen) - rx1cnt = Signal(max=11) - self.sync.rtio_rx += [ - rx1cnt.eq(reduce(add, [self.rxdata[i] for i in range(10)])), - If(checks_reset.o, - error_seen_rxclk.eq(0) - ).Elif((rx1cnt != 4) & (rx1cnt != 5) & (rx1cnt != 6), - error_seen_rxclk.eq(1) - ) - ] - - fsm = ClockDomainsRenamer("rtio")(FSM(reset_state="WAIT_COMMA")) - self.submodules += fsm - - fsm.act("WAIT_COMMA", - If(check, - # Errors are still OK at this stage, as the transceiver - # has just been reset and may output garbage data. - If(comma_seen, - NextState("WAIT_NOERROR") - ).Else( - self.restart.eq(1) - ), - checks_reset.i.eq(1) - ) - ) - fsm.act("WAIT_NOERROR", - If(check, - If(comma_seen & ~error_seen, - NextState("READY") - ).Else( - self.restart.eq(1), - NextState("WAIT_COMMA") - ), - checks_reset.i.eq(1) - ) - ) - fsm.act("READY", - reset_check_counter.eq(1), - self.ready.eq(1), - If(error_seen, - checks_reset.i.eq(1), - self.restart.eq(1), - NextState("WAIT_COMMA") - ) - ) diff --git a/artiq/gateware/targets/kc705_drtio_master.py b/artiq/gateware/targets/kc705_drtio_master.py deleted file mode 100755 index c1bf28fb4..000000000 --- a/artiq/gateware/targets/kc705_drtio_master.py +++ /dev/null @@ -1,116 +0,0 @@ -#!/usr/bin/env python3 - -import argparse - -from migen import * -from migen.build.generic_platform import * - -from misoc.cores import spi as spi_csr -from misoc.targets.kc705 import MiniSoC, soc_kc705_args, soc_kc705_argdict -from misoc.integration.builder import builder_args, builder_argdict - -from artiq.gateware.amp import AMPSoC, build_artiq_soc -from artiq.gateware import rtio -from artiq.gateware.rtio.phy import ttl_simple -from artiq.gateware.drtio.transceiver import gtx_7series -from artiq.gateware.drtio import DRTIOMaster -from artiq import __version__ as artiq_version - - -class Master(MiniSoC, AMPSoC): - mem_map = { - "cri_con": 0x10000000, - "rtio": 0x20000000, - "rtio_dma": 0x30000000, - "drtio_aux": 0x50000000, - "mailbox": 0x70000000 - } - mem_map.update(MiniSoC.mem_map) - - def __init__(self, **kwargs): - MiniSoC.__init__(self, - cpu_type="or1k", - sdram_controller_type="minicon", - l2_size=128*1024, - ident=artiq_version, - ethmac_nrxslots=4, - ethmac_ntxslots=4, - **kwargs) - AMPSoC.__init__(self) - - platform = self.platform - - self.comb += platform.request("sfp_tx_disable_n").eq(1) - tx_pads = platform.request("sfp_tx") - rx_pads = platform.request("sfp_rx") - - # 1000BASE_BX10 Ethernet compatible, 62.5MHz RTIO clock - self.submodules.transceiver = gtx_7series.GTX_1000BASE_BX10( - clock_pads=platform.request("sgmii_clock"), - tx_pads=tx_pads, - rx_pads=rx_pads, - sys_clk_freq=self.clk_freq, - clock_div2=True) - - self.submodules.drtio0 = ClockDomainsRenamer({"rtio_rx": "rtio_rx0"})( - DRTIOMaster(self.transceiver.channels[0])) - self.csr_devices.append("drtio0") - self.add_wb_slave(self.mem_map["drtio_aux"], 0x800, - self.drtio0.aux_controller.bus) - self.add_memory_region("drtio0_aux", self.mem_map["drtio_aux"] | self.shadow_base, 0x800) - self.config["HAS_DRTIO"] = None - self.add_csr_group("drtio", ["drtio0"]) - self.add_memory_group("drtio_aux", ["drtio0_aux"]) - - self.comb += [ - platform.request("user_sma_clock_p").eq(ClockSignal("rtio_rx0")), - platform.request("user_sma_clock_n").eq(ClockSignal("rtio")) - ] - - rtio_clk_period = 1e9/self.transceiver.rtio_clk_freq - platform.add_period_constraint(self.transceiver.txoutclk, rtio_clk_period) - platform.add_period_constraint(self.transceiver.rxoutclk, rtio_clk_period) - platform.add_false_path_constraints( - self.crg.cd_sys.clk, - self.transceiver.txoutclk, self.transceiver.rxoutclk) - - rtio_channels = [] - for i in range(8): - phy = ttl_simple.Output(platform.request("user_led", i)) - self.submodules += phy - rtio_channels.append(rtio.Channel.from_phy(phy)) - for sma in "user_sma_gpio_p", "user_sma_gpio_n": - phy = ttl_simple.InOut(platform.request(sma)) - self.submodules += phy - rtio_channels.append(rtio.Channel.from_phy(phy)) - - self.submodules.rtio_moninj = rtio.MonInj(rtio_channels) - self.csr_devices.append("rtio_moninj") - - self.submodules.rtio_core = rtio.Core(rtio_channels, 3) - self.csr_devices.append("rtio_core") - - self.submodules.rtio = rtio.KernelInitiator() - self.submodules.rtio_dma = ClockDomainsRenamer("sys_kernel")( - rtio.DMA(self.get_native_sdram_if())) - self.register_kernel_cpu_csrdevice("rtio") - self.register_kernel_cpu_csrdevice("rtio_dma") - self.submodules.cri_con = rtio.CRIInterconnectShared( - [self.rtio.cri, self.rtio_dma.cri], - [self.rtio_core.cri, self.drtio0.cri]) - self.register_kernel_cpu_csrdevice("cri_con") - - -def main(): - parser = argparse.ArgumentParser( - description="ARTIQ device binary builder / KC705 DRTIO master") - builder_args(parser) - soc_kc705_args(parser) - args = parser.parse_args() - - soc = Master(**soc_kc705_argdict(args)) - build_artiq_soc(soc, builder_argdict(args)) - - -if __name__ == "__main__": - main() diff --git a/artiq/gateware/targets/kc705_drtio_satellite.py b/artiq/gateware/targets/kc705_drtio_satellite.py deleted file mode 100755 index 0f318a0d3..000000000 --- a/artiq/gateware/targets/kc705_drtio_satellite.py +++ /dev/null @@ -1,114 +0,0 @@ -#!/usr/bin/env python3 - -import argparse -import os - -from migen import * -from migen.build.generic_platform import * -from misoc.cores import spi as spi_csr -from misoc.cores import gpio -from misoc.integration.builder import * -from misoc.targets.kc705 import BaseSoC, soc_kc705_args, soc_kc705_argdict - -from artiq.gateware import rtio -from artiq.gateware.rtio.phy import ttl_simple -from artiq.gateware.drtio.transceiver import gtx_7series -from artiq.gateware.drtio import DRTIOSatellite -from artiq import __version__ as artiq_version -from artiq import __artiq_dir__ as artiq_dir - - -class Satellite(BaseSoC): - mem_map = { - "drtio_aux": 0x50000000, - } - mem_map.update(BaseSoC.mem_map) - - def __init__(self, **kwargs): - BaseSoC.__init__(self, - cpu_type="or1k", - sdram_controller_type="minicon", - l2_size=128*1024, - ident=artiq_version, - **kwargs) - - platform = self.platform - - rtio_channels = [] - for i in range(8): - phy = ttl_simple.Output(platform.request("user_led", i)) - self.submodules += phy - rtio_channels.append(rtio.Channel.from_phy(phy)) - for sma in "user_sma_gpio_p", "user_sma_gpio_n": - phy = ttl_simple.InOut(platform.request(sma)) - self.submodules += phy - rtio_channels.append(rtio.Channel.from_phy(phy)) - - self.submodules.rtio_moninj = rtio.MonInj(rtio_channels) - self.csr_devices.append("rtio_moninj") - - self.comb += platform.request("sfp_tx_disable_n").eq(1) - - # 1000BASE_BX10 Ethernet compatible, 62.5MHz RTIO clock - self.submodules.transceiver = gtx_7series.GTX_1000BASE_BX10( - clock_pads=platform.request("si5324_clkout"), - tx_pads=platform.request("sfp_tx"), - rx_pads=platform.request("sfp_rx"), - sys_clk_freq=self.clk_freq) - rx0 = ClockDomainsRenamer({"rtio_rx": "rtio_rx0"}) - self.submodules.rx_synchronizer0 = rx0(gtx_7series.RXSynchronizer( - self.transceiver.rtio_clk_freq, initial_phase=180.0)) - self.submodules.drtio0 = rx0(DRTIOSatellite( - self.transceiver.channels[0], rtio_channels, self.rx_synchronizer0)) - self.csr_devices.append("rx_synchronizer0") - self.csr_devices.append("drtio0") - self.add_wb_slave(self.mem_map["drtio_aux"], 0x800, - self.drtio0.aux_controller.bus) - self.add_memory_region("drtio0_aux", self.mem_map["drtio_aux"] | self.shadow_base, 0x800) - self.config["HAS_DRTIO"] = None - self.add_csr_group("drtio", ["drtio0"]) - self.add_memory_group("drtio_aux", ["drtio0_aux"]) - - self.config["RTIO_FREQUENCY"] = str(self.transceiver.rtio_clk_freq/1e6) - si5324_clkin = platform.request("si5324_clkin") - self.specials += \ - Instance("OBUFDS", - i_I=ClockSignal("rtio_rx0"), - o_O=si5324_clkin.p, o_OB=si5324_clkin.n - ) - self.submodules.si5324_rst_n = gpio.GPIOOut(platform.request("si5324").rst_n) - self.csr_devices.append("si5324_rst_n") - i2c = self.platform.request("i2c") - self.submodules.i2c = gpio.GPIOTristate([i2c.scl, i2c.sda]) - self.csr_devices.append("i2c") - self.config["I2C_BUS_COUNT"] = 1 - self.config["HAS_SI5324"] = None - - self.comb += [ - platform.request("user_sma_clock_p").eq(ClockSignal("rtio_rx0")), - platform.request("user_sma_clock_n").eq(ClockSignal("rtio")) - ] - - rtio_clk_period = 1e9/self.transceiver.rtio_clk_freq - platform.add_period_constraint(self.transceiver.txoutclk, rtio_clk_period) - platform.add_period_constraint(self.transceiver.rxoutclk, rtio_clk_period) - platform.add_false_path_constraints( - platform.lookup_request("clk200"), - self.transceiver.txoutclk, self.transceiver.rxoutclk) - - -def main(): - parser = argparse.ArgumentParser( - description="ARTIQ device binary builder / KC705 DRTIO satellite") - builder_args(parser) - soc_kc705_args(parser) - args = parser.parse_args() - - soc = Satellite(**soc_kc705_argdict(args)) - builder = Builder(soc, **builder_argdict(args)) - builder.add_software_package("satman", os.path.join(artiq_dir, "firmware", "satman")) - builder.build() - - -if __name__ == "__main__": - main()