def __init__(self,
sys_clk_freq=int(100e6),
integrated_rom_size=0x8000,
uart_name="usb_fifo",
**kwargs):
platform = mimas_a7.Platform()
# SoCSDRAM ---------------------------------------------------------------------------------
SoCSDRAM.__init__(self,
platform,
clk_freq=sys_clk_freq,
integrated_rom_size=integrated_rom_size,
integrated_sram_size=0x8000,
uart_name=uart_name,
**kwargs)
# CRG --------------------------------------------------------------------------------------
self.submodules.crg = _CRG(platform, sys_clk_freq)
# DDR3 SDRAM -------------------------------------------------------------------------------
if not self.integrated_main_ram_size:
self.submodules.ddrphy = s7ddrphy.A7DDRPHY(
platform.request("ddram"),
memtype="DDR3",
nphases=4,
sys_clk_freq=sys_clk_freq)
self.add_csr("ddrphy")
sdram_module = MT41J128M16(sys_clk_freq, "1:4")
self.register_sdram(self.ddrphy,
geom_settings=sdram_module.geom_settings,
timing_settings=sdram_module.timing_settings)
def __init__(self, sys_clk_freq=int(100e6), with_ethernet=False, **kwargs):
platform = mimas_a7.Platform()
# SoCCore ----------------------------------------------------------------------------------
SoCCore.__init__(self, platform, clk_freq=sys_clk_freq, **kwargs)
# CRG --------------------------------------------------------------------------------------
self.submodules.crg = _CRG(platform, sys_clk_freq)
# DDR3 SDRAM -------------------------------------------------------------------------------
if not self.integrated_main_ram_size:
self.submodules.ddrphy = s7ddrphy.A7DDRPHY(platform.request("ddram"),
memtype = "DDR3",
nphases = 4,
sys_clk_freq = sys_clk_freq)
self.add_csr("ddrphy")
self.add_sdram("sdram",
phy = self.ddrphy,
module = MT41J128M16(sys_clk_freq, "1:4"),
origin = self.mem_map["main_ram"],
size = kwargs.get("max_sdram_size", 0x40000000),
l2_cache_size = kwargs.get("l2_size", 8192),
l2_cache_min_data_width = kwargs.get("min_l2_data_width", 128),
l2_cache_reverse = True
)
# Ethernet ---------------------------------------------------------------------------------
if with_ethernet:
self.submodules.ethphy = LiteEthPHYRGMII(
clock_pads = self.platform.request("eth_clocks"),
pads = self.platform.request("eth"))
self.add_csr("ethphy")
self.add_ethernet(phy=self.ethphy)
def __init__(self,
sys_clk_freq=int(100e6),
with_led_chaser=True,
with_ethernet=False,
**kwargs):
platform = mimas_a7.Platform()
# SoCCore ----------------------------------------------------------------------------------
SoCCore.__init__(self,
platform,
sys_clk_freq,
ident="LiteX SoC on Mimas A7",
**kwargs)
# CRG --------------------------------------------------------------------------------------
self.submodules.crg = _CRG(platform, sys_clk_freq)
# DDR3 SDRAM -------------------------------------------------------------------------------
if not self.integrated_main_ram_size:
self.submodules.ddrphy = s7ddrphy.A7DDRPHY(
platform.request("ddram"),
memtype="DDR3",
nphases=4,
sys_clk_freq=sys_clk_freq)
self.add_sdram("sdram",
phy=self.ddrphy,
module=MT41J128M16(sys_clk_freq, "1:4"),
l2_cache_size=kwargs.get("l2_size", 8192))
# Ethernet ---------------------------------------------------------------------------------
if with_ethernet:
self.submodules.ethphy = LiteEthPHYRGMII(
clock_pads=self.platform.request("eth_clocks"),
pads=self.platform.request("eth"))
self.add_ethernet(phy=self.ethphy)
# Leds -------------------------------------------------------------------------------------
if with_led_chaser:
self.submodules.leds = LedChaser(
pads=platform.request_all("user_led"),
sys_clk_freq=sys_clk_freq)