from migen.fhdl.std import * from migen.bank.description import * from migen.bank import wbgen from mibuild.generic_platform import * from misoclib.com import gpio from misoclib.soc import mem_decoder from targets.kc705 import MiniSoC from artiq.gateware import amp, rtio, ad9858, nist_qc1 class _RTIOCRG(Module, AutoCSR): def __init__(self, platform, rtio_internal_clk): self._clock_sel = CSRStorage() self.clock_domains.cd_rtio = ClockDomain() rtio_external_clk = Signal() user_sma_clock = platform.request("user_sma_clock") platform.add_period_constraint(user_sma_clock.p, 8.0) self.specials += Instance("IBUFDS", i_I=user_sma_clock.p, i_IB=user_sma_clock.n, o_O=rtio_external_clk) self.specials += Instance("BUFGMUX", i_I0=rtio_internal_clk, i_I1=rtio_external_clk, i_S=self._clock_sel.storage, o_O=self.cd_rtio.clk) class _Peripherals(MiniSoC): csr_map = { "rtio": None, # mapped on Wishbone instead "rtiocrg": 13 } csr_map.update(MiniSoC.csr_map) def __init__(self, platform, cpu_type="or1k", **kwargs): MiniSoC.__init__(self, platform, cpu_type=cpu_type, **kwargs) platform.add_extension(nist_qc1.fmc_adapter_io) self.submodules.leds = gpio.GPIOOut(Cat( platform.request("user_led", 0), platform.request("user_led", 1))) fud = Signal() self.comb += [ platform.request("ttl_l_tx_en").eq(1), platform.request("ttl_h_tx_en").eq(1) ] rtio_ins = [platform.request("pmt") for i in range(2)] rtio_outs = [platform.request("ttl", i) for i in range(16)] rtio_outs.append(platform.request("user_led", 2)) self.add_constant("RTIO_FUD_CHANNEL", len(rtio_ins) + len(rtio_outs)) rtio_outs.append(fud) self.submodules.rtiocrg = _RTIOCRG(platform, self.crg.pll_sys) self.submodules.rtiophy = rtio.phy.SimplePHY( rtio_ins + rtio_outs, output_only_pads=set(rtio_outs)) self.submodules.rtio = rtio.RTIO(self.rtiophy, clk_freq=125000000, ififo_depth=512) dds_pads = platform.request("dds") self.submodules.dds = ad9858.AD9858(dds_pads) self.comb += dds_pads.fud_n.eq(~fud) class UP(_Peripherals): def __init__(self, *args, **kwargs): _Peripherals.__init__(self, *args, **kwargs) rtio_csrs = self.rtio.get_csrs() self.submodules.rtiowb = wbgen.Bank(rtio_csrs) self.add_wb_slave(mem_decoder(0xa0000000), self.rtiowb.bus) self.add_csr_region("rtio", 0xa0000000, 32, rtio_csrs) self.add_wb_slave(mem_decoder(0xb0000000), self.dds.bus) class AMP(_Peripherals): csr_map = { "kernel_cpu": 14 } csr_map.update(_Peripherals.csr_map) def __init__(self, platform, *args, **kwargs): _Peripherals.__init__(self, platform, *args, **kwargs) self.submodules.kernel_cpu = amp.KernelCPU( platform, self.sdram.crossbar.get_master()) self.submodules.mailbox = amp.Mailbox() self.add_wb_slave(mem_decoder(0xd0000000), self.mailbox.i1) self.kernel_cpu.add_wb_slave(mem_decoder(0xd0000000), self.mailbox.i2) rtio_csrs = self.rtio.get_csrs() self.submodules.rtiowb = wbgen.Bank(rtio_csrs) self.kernel_cpu.add_wb_slave(mem_decoder(0xa0000000), self.rtiowb.bus) self.add_csr_region("rtio", 0xa0000000, 32, rtio_csrs) self.kernel_cpu.add_wb_slave(mem_decoder(0xb0000000), self.dds.bus) default_subtarget = UP