forked from M-Labs/artiq
1
0
Fork 0
artiq/soc/targets/artiq_pipistrello.py

166 lines
6.1 KiB
Python
Raw Normal View History

2015-02-26 00:48:17 +08:00
from migen.fhdl.std import *
from migen.bank.description import *
from migen.bank import wbgen
2015-04-02 17:19:00 +08:00
from misoclib.com import gpio
2015-04-05 06:58:56 +08:00
from misoclib.soc import mem_decoder
2015-02-26 00:48:17 +08:00
from targets.pipistrello import BaseSoC
from artiq.gateware import amp, rtio, ad9858, nist_qc1
2015-04-14 19:44:45 +08:00
from artiq.gateware.rtio.phy import ttl_simple
2015-02-26 00:48:17 +08:00
class _RTIOCRG(Module, AutoCSR):
2015-02-26 00:48:17 +08:00
def __init__(self, platform):
2015-04-02 18:22:18 +08:00
self._clock_sel = CSRStorage()
2015-02-26 00:48:17 +08:00
self.clock_domains.cd_rtio = ClockDomain()
# 75MHz -> 125MHz
2015-02-26 00:48:17 +08:00
rtio_internal_clk = Signal()
self.specials += Instance("DCM_CLKGEN",
p_CLKFXDV_DIVIDE=2,
p_CLKFX_DIVIDE=3,
2015-02-26 00:48:17 +08:00
p_CLKFX_MD_MAX=1.6,
p_CLKFX_MULTIPLY=5,
p_CLKIN_PERIOD=1e3/75,
2015-02-26 00:48:17 +08:00
p_SPREAD_SPECTRUM="NONE",
p_STARTUP_WAIT="FALSE",
i_CLKIN=ClockSignal(),
o_CLKFX=rtio_internal_clk,
i_FREEZEDCM=0,
i_RST=ResetSignal())
2015-04-12 05:32:43 +08:00
self.rtio_external_clk = platform.request("dds_clock")
platform.add_period_constraint(self.rtio_external_clk, 8.0)
2015-02-26 00:48:17 +08:00
self.specials += Instance("BUFGMUX",
i_I0=rtio_internal_clk,
2015-04-12 05:32:43 +08:00
i_I1=self.rtio_external_clk,
2015-04-02 18:22:18 +08:00
i_S=self._clock_sel.storage,
2015-02-26 00:48:17 +08:00
o_O=self.cd_rtio.clk)
class _Peripherals(BaseSoC):
2015-02-26 00:48:17 +08:00
csr_map = {
"rtio": None, # mapped on Wishbone instead
"rtiocrg": 13
}
csr_map.update(BaseSoC.csr_map)
mem_map = {
2015-04-12 05:32:43 +08:00
"rtio": 0x20000000, # (shadow @0xa0000000)
"dds": 0x50000000, # (shadow @0xd0000000)
}
2015-04-14 19:34:14 +08:00
mem_map.update(BaseSoC.mem_map)
2015-02-26 00:48:17 +08:00
def __init__(self, platform, cpu_type="or1k", **kwargs):
BaseSoC.__init__(self, platform, cpu_type=cpu_type, **kwargs)
2015-04-12 05:49:36 +08:00
platform.toolchain.ise_commands += """
trce -v 12 -fastpaths -o {build_name}.twr {build_name}.ncd {build_name}.pcf
"""
platform.add_extension(nist_qc1.papilio_adapter_io)
2015-02-26 00:48:17 +08:00
self.submodules.leds = gpio.GPIOOut(Cat(
platform.request("user_led", 0),
platform.request("user_led", 1),
))
self.comb += [
platform.request("ttl_l_tx_en").eq(1),
platform.request("ttl_h_tx_en").eq(1)
]
2015-04-14 19:44:45 +08:00
# RTIO channels
rtio_channels = []
for i in range(2):
phy = ttl_simple.Inout(platform.request("pmt", i))
self.submodules += phy
rtio_channels.append(rtio.Channel(phy.rtlink, ififo_depth=512))
phy = ttl_simple.Inout(platform.request("xtrig", 0))
self.submodules += phy
rtio_channels.append(rtio.Channel(phy.rtlink))
for i in range(16):
phy = ttl_simple.Output(platform.request("ttl", i))
self.submodules += phy
rtio_channels.append(rtio.Channel(phy.rtlink))
phy = ttl_simple.Output(platform.request("ext_led", 0))
self.submodules += phy
rtio_channels.append(rtio.Channel(phy.rtlink))
for i in range(2, 5):
phy = ttl_simple.Output(platform.request("user_led", i))
self.submodules += phy
rtio_channels.append(rtio.Channel(phy.rtlink))
fud = Signal()
self.add_constant("RTIO_FUD_CHANNEL", len(rtio_channels))
phy = ttl_simple.Output(fud)
self.submodules += phy
rtio_channels.append(rtio.Channel(phy.rtlink))
# RTIO core
self.submodules.rtiocrg = _RTIOCRG(platform)
2015-04-14 19:44:45 +08:00
self.submodules.rtio = rtio.RTIO(rtio_channels,
clk_freq=125000000)
2015-04-12 05:32:43 +08:00
platform.add_platform_command("""
NET "{rtio_ext_clk}" TNM_NET = "GRPrtio_ext_clk";
NET "{sys_clk}" TNM_NET = "GRPsys_clk";
TIMESPEC "TSfix_ise1" = FROM "GRPrtio_ext_clk" TO "GRPsys_clk" TIG;
TIMESPEC "TSfix_ise2" = FROM "GRPsys_clk" TO "GRPrtio_ext_clk" TIG;
""", rtio_ext_clk=self.rtiocrg.rtio_external_clk, sys_clk=self.crg.cd_sys.clk)
2015-02-26 00:48:17 +08:00
2015-04-05 07:00:41 +08:00
dds_pads = platform.request("dds")
self.submodules.dds = ad9858.AD9858(dds_pads)
self.comb += dds_pads.fud_n.eq(~fud)
class UP(_Peripherals):
2015-04-05 07:00:41 +08:00
def __init__(self, platform, **kwargs):
_Peripherals.__init__(self, platform, **kwargs)
2015-04-05 07:00:41 +08:00
2015-02-26 00:48:17 +08:00
rtio_csrs = self.rtio.get_csrs()
self.submodules.rtiowb = wbgen.Bank(rtio_csrs)
self.add_wb_slave(mem_decoder(self.mem_map["rtio"]), self.rtiowb.bus)
2015-04-12 05:32:43 +08:00
self.add_csr_region("rtio", self.mem_map["rtio"] + 0x80000000, 32,
rtio_csrs)
2015-02-26 00:48:17 +08:00
self.add_wb_slave(mem_decoder(self.mem_map["dds"]), self.dds.bus)
self.add_memory_region("dds", self.mem_map["dds"] + 0x80000000, 64*4)
2015-02-26 00:48:17 +08:00
2015-04-12 05:32:43 +08:00
class AMP(_Peripherals):
2015-04-05 07:01:08 +08:00
csr_map = {
"kernel_cpu": 14
}
csr_map.update(_Peripherals.csr_map)
mem_map = {
2015-04-12 05:32:43 +08:00
"mailbox": 0x70000000 # (shadow @0xf0000000)
}
mem_map.update(_Peripherals.mem_map)
2015-04-05 07:01:08 +08:00
def __init__(self, platform, *args, **kwargs):
_Peripherals.__init__(self, platform, **kwargs)
2015-04-05 07:01:08 +08:00
self.submodules.kernel_cpu = amp.KernelCPU(
platform, self.sdram.crossbar.get_master())
self.submodules.mailbox = amp.Mailbox()
2015-04-12 05:32:43 +08:00
self.add_wb_slave(mem_decoder(self.mem_map["mailbox"]),
self.mailbox.i1)
self.kernel_cpu.add_wb_slave(mem_decoder(self.mem_map["mailbox"]),
self.mailbox.i2)
2015-04-05 07:01:08 +08:00
rtio_csrs = self.rtio.get_csrs()
self.submodules.rtiowb = wbgen.Bank(rtio_csrs)
2015-04-12 05:32:43 +08:00
self.kernel_cpu.add_wb_slave(mem_decoder(self.mem_map["rtio"]),
self.rtiowb.bus)
self.add_csr_region("rtio", self.mem_map["rtio"] + 0x80000000, 32,
rtio_csrs)
2015-04-05 07:01:08 +08:00
2015-04-12 05:32:43 +08:00
self.kernel_cpu.add_wb_slave(mem_decoder(self.mem_map["dds"]),
self.dds.bus)
self.add_memory_region("dds", self.mem_map["dds"] + 0x80000000, 64*4)
2015-04-05 07:01:08 +08:00
default_subtarget = UP