import os from litesata.common import * from migen.bank import csrgen from migen.bus import wishbone, csr from migen.bus import wishbone2csr from migen.genlib.cdc import * from migen.genlib.resetsync import AsyncResetSynchronizer from migen.bank.description import * from misoclib import identifier from miscope import MiLa, Term, UART2Wishbone from litesata.common import * from litesata.phy import LiteSATAPHY from litesata import LiteSATA class _CRG(Module): def __init__(self, platform): self.cd_sys = ClockDomain() self.reset = Signal() clk200 = platform.request("clk200") clk200_se = Signal() self.specials += Instance("IBUFDS", i_I=clk200.p, i_IB=clk200.n, o_O=clk200_se) pll_locked = Signal() pll_fb = Signal() pll_sys = Signal() self.specials += [ Instance("PLLE2_BASE", p_STARTUP_WAIT="FALSE", o_LOCKED=pll_locked, # VCO @ 1GHz p_REF_JITTER1=0.01, p_CLKIN1_PERIOD=5.0, p_CLKFBOUT_MULT=5, p_DIVCLK_DIVIDE=1, i_CLKIN1=clk200_se, i_CLKFBIN=pll_fb, o_CLKFBOUT=pll_fb, # 166MHz p_CLKOUT0_DIVIDE=6, p_CLKOUT0_PHASE=0.0, o_CLKOUT0=pll_sys, p_CLKOUT1_DIVIDE=2, p_CLKOUT1_PHASE=0.0, #o_CLKOUT1=, p_CLKOUT2_DIVIDE=2, p_CLKOUT2_PHASE=0.0, #o_CLKOUT2=, p_CLKOUT3_DIVIDE=2, p_CLKOUT3_PHASE=0.0, #o_CLKOUT3=, p_CLKOUT4_DIVIDE=2, p_CLKOUT4_PHASE=0.0, #o_CLKOUT4= ), Instance("BUFG", i_I=pll_sys, o_O=self.cd_sys.clk), AsyncResetSynchronizer(self.cd_sys, ~pll_locked | platform.request("cpu_reset") | self.reset), ] class GenSoC(Module): csr_base = 0x00000000 csr_data_width = 32 csr_map = { "uart2wb": 0, "identifier": 2, } interrupt_map = {} cpu_type = None def __init__(self, platform, clk_freq): # UART <--> Wishbone bridge self.uart2wb = UART2Wishbone(platform.request("serial"), clk_freq, baud=921600) # CSR bridge 0x00000000 (shadow @0x00000000) self.wishbone2csr = wishbone2csr.WB2CSR(bus_csr=csr.Interface(self.csr_data_width)) self._wb_masters = [self.uart2wb.wishbone] self._wb_slaves = [(lambda a: a[23:25] == 0, self.wishbone2csr.wishbone)] self.cpu_csr_regions = [] # list of (name, origin, busword, csr_list/Memory) # CSR self.identifier = identifier.Identifier(0, int(clk_freq), 0) def add_cpu_memory_region(self, name, origin, length): self.cpu_memory_regions.append((name, origin, length)) def add_cpu_csr_region(self, name, origin, busword, obj): self.cpu_csr_regions.append((name, origin, busword, obj)) def do_finalize(self): # Wishbone self.wishbonecon = wishbone.InterconnectShared(self._wb_masters, self._wb_slaves, register=True) # CSR self.csrbankarray = csrgen.BankArray(self, lambda name, memory: self.csr_map[name if memory is None else name + "_" + memory.name_override], data_width=self.csr_data_width) self.csrcon = csr.Interconnect(self.wishbone2csr.csr, self.csrbankarray.get_buses()) for name, csrs, mapaddr, rmap in self.csrbankarray.banks: self.add_cpu_csr_region(name, 0xe0000000+0x800*mapaddr, flen(rmap.bus.dat_w), csrs) for name, memory, mapaddr, mmap in self.csrbankarray.srams: self.add_cpu_csr_region(name, 0xe0000000+0x800*mapaddr, flen(rmap.bus.dat_w), memory) class BISTLeds(Module): def __init__(self, platform, sata_phy): # 1Hz blinking leds (sata_rx and sata_tx clocks) sata_rx_led = platform.request("user_led", 0) sata_tx_led = platform.request("user_led", 1) sata_rx_cnt = Signal(32) sata_tx_cnt = Signal(32) sata_freq = int(frequencies[sata_phy.revision]*1000*1000) self.sync.sata_rx += \ If(sata_rx_cnt == 0, sata_rx_led.eq(~sata_rx_led), sata_rx_cnt.eq(sata_freq//2) ).Else( sata_rx_cnt.eq(sata_rx_cnt-1) ) self.sync.sata_tx += \ If(sata_tx_cnt == 0, sata_tx_led.eq(~sata_tx_led), sata_tx_cnt.eq(sata_freq//2) ).Else( sata_tx_cnt.eq(sata_tx_cnt-1) ) # ready leds (crg and ctrl) self.comb += platform.request("user_led", 2).eq(sata_phy.crg.ready) self.comb += platform.request("user_led", 3).eq(sata_phy.ctrl.ready) class BISTSoC(GenSoC, AutoCSR): default_platform = "kc705" csr_map = { "sata": 10, } csr_map.update(GenSoC.csr_map) def __init__(self, platform, export_mila=False): clk_freq = 166*1000000 GenSoC.__init__(self, platform, clk_freq) self.crg = _CRG(platform) # SATA PHY/Core/Frontend self.sata_phy = LiteSATAPHY(platform.device, platform.request("sata"), "SATA2", clk_freq) self.comb += self.crg.reset.eq(self.sata_phy.ctrl.need_reset) # XXX FIXME self.sata = LiteSATA(self.sata_phy, with_crossbar=True, with_bist=True, with_bist_csr=True) # Status Leds self.leds = BISTLeds(platform, self.sata_phy) class BISTSoCDevel(BISTSoC, AutoCSR): csr_map = { "mila": 11 } csr_map.update(BISTSoC.csr_map) def __init__(self, platform, export_mila=False): BISTSoC.__init__(self, platform, export_mila) self.sata_core_link_rx_fsm_state = Signal(4) self.sata_core_link_tx_fsm_state = Signal(4) self.sata_core_transport_rx_fsm_state = Signal(4) self.sata_core_transport_tx_fsm_state = Signal(4) self.sata_core_command_rx_fsm_state = Signal(4) self.sata_core_command_tx_fsm_state = Signal(4) debug = ( self.sata_phy.ctrl.ready, self.sata_phy.source.stb, self.sata_phy.source.data, self.sata_phy.source.charisk, self.sata_phy.sink.stb, self.sata_phy.sink.data, self.sata_phy.sink.charisk, self.sata.core.command.sink.stb, self.sata.core.command.sink.sop, self.sata.core.command.sink.eop, self.sata.core.command.sink.ack, self.sata.core.command.sink.write, self.sata.core.command.sink.read, self.sata.core.command.sink.identify, self.sata.core.command.source.stb, self.sata.core.command.source.sop, self.sata.core.command.source.eop, self.sata.core.command.source.ack, self.sata.core.command.source.write, self.sata.core.command.source.read, self.sata.core.command.source.identify, self.sata.core.command.source.failed, self.sata.core.command.source.data, self.sata_core_link_rx_fsm_state, self.sata_core_link_tx_fsm_state, self.sata_core_transport_rx_fsm_state, self.sata_core_transport_tx_fsm_state, self.sata_core_command_rx_fsm_state, self.sata_core_command_tx_fsm_state, ) self.mila = MiLa(depth=2048, dat=Cat(*debug)) self.mila.add_port(Term) if export_mila: mila_filename = os.path.join("test", "mila.csv") self.mila.export(self, debug, mila_filename) def do_finalize(self): BISTSoC.do_finalize(self) self.comb += [ self.sata_core_link_rx_fsm_state.eq(self.sata.core.link.rx.fsm.state), self.sata_core_link_tx_fsm_state.eq(self.sata.core.link.tx.fsm.state), self.sata_core_transport_rx_fsm_state.eq(self.sata.core.transport.rx.fsm.state), self.sata_core_transport_tx_fsm_state.eq(self.sata.core.transport.tx.fsm.state), self.sata_core_command_rx_fsm_state.eq(self.sata.core.command.rx.fsm.state), self.sata_core_command_tx_fsm_state.eq(self.sata.core.command.tx.fsm.state) ] default_subtarget = BISTSoC