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targets/kc705: dual-CPU design

This commit is contained in:
Sebastien Bourdeauducq 2015-04-02 16:53:57 +08:00
parent 5bd8d414cf
commit 5fd7f68f48
1 changed files with 41 additions and 11 deletions
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52
soc/targets/artiq_kc705.py
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@ -4,9 +4,10 @@ from migen.bank import wbgen
from mibuild.generic_platform import *
from misoclib.cpu.peripherals import gpio
from misoclib.soc import mem_decoder
from targets.kc705 import BaseSoC
from artiq.gateware import rtio, ad9858
from artiq.gateware import amp, rtio, ad9858
_tester_io = [
@ -67,15 +68,14 @@ class _RTIOCRG(Module, AutoCSR):
o_O=self.cd_rtio.clk)
class ARTIQSoC(BaseSoC):
class _ARTIQSoCPeripherals(BaseSoC):
csr_map = {
"rtio": None, # mapped on Wishbone instead
"rtiocrg": 13
}
csr_map.update(BaseSoC.csr_map)
def __init__(self, platform, cpu_type="or1k", with_test_gen=False,
**kwargs):
def __init__(self, platform, cpu_type="or1k", **kwargs):
BaseSoC.__init__(self, platform,
cpu_type=cpu_type, **kwargs)
platform.add_extension(_tester_io)
@ -100,14 +100,44 @@ class ARTIQSoC(BaseSoC):
clk_freq=125000000,
ififo_depth=512)
rtio_csrs = self.rtio.get_csrs()
self.submodules.rtiowb = wbgen.Bank(rtio_csrs)
self.add_wb_slave(lambda a: a[26:29] == 2, self.rtiowb.bus)
self.add_csr_region("rtio", 0xa0000000, 32, rtio_csrs)
dds_pads = platform.request("dds")
self.submodules.dds = ad9858.AD9858(dds_pads)
self.add_wb_slave(lambda a: a[26:29] == 3, self.dds.bus)
self.comb += dds_pads.fud_n.eq(~fud)
default_subtarget = ARTIQSoC
class ARTIQSoCBasic(_ARTIQSoCPeripherals):
def __init__(self, *args, **kwargs):
_ARTIQSoCPeripherals.__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 ARTIQSoC(_ARTIQSoCPeripherals):
csr_map = {
"kernel_cpu": 14
}
csr_map.update(_ARTIQSoCPeripherals.csr_map)
def __init__(self, platform, *args, **kwargs):
_ARTIQSoCPeripherals.__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 = ARTIQSoCBasic