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litex-boards/litex_boards/partner/platforms/hadbadge.py

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add the Hackaday Supercon ECP5 badge Add the Hackaday Supercon 2019 badge which has an ECP5 FPGA: https://hackaday.io/project/167255-2019-hackaday-superconference-badge These changes are from Michael Welling's fork: https://github.com/mwelling/linux-on-litex-vexriscv During Supercon, we trying two approaches: - use the built-in 16MB QSPI SRAM - use add-on cartiridge with 32MB SDRAM by Jacob Creedon We were not able to get the QSPI SRAM working so I've removed those changes, and I have just added the changes that are needed to boot Linux with the 32MB SDRAM. Thanks to Jacob Creedon, Greg Davill and Tim Ansell who helped debug. KiCad design files for the SDRAM cartridge are available at: https://github.com/jcreedon/dram-cart/ The SDRAM cartridge PCB is shared at: https://oshpark.com/shared_projects/IQSl2lid More information in this blog post: https://blog.oshpark.com/2019/12/20/ The Hackaday Supercon badge PCB design is here: https://github.com/Spritetm/hadbadge2019_pcb
2020-01-05 18:46:13 -05:00
from litex.build.generic_platform import *
from litex.build.lattice import LatticePlatform
# IOs ----------------------------------------------------------------------------------------------
_io = [
("clk8", 0, Pins("U18"), IOStandard("LVCMOS33")),
("programn", 0, Pins("R1"), IOStandard("LVCMOS33")),
("serial", 0,
Subsignal("rx", Pins("U2"), IOStandard("LVCMOS33"), Misc("PULLMODE=UP")),
Subsignal("tx", Pins("U1"), IOStandard("LVCMOS33")),
),
("led", 0, Pins("E3 D3 C3 C4 C2 B1 B20 B19 A18 K20 K19"), IOStandard("LVCMOS33")), # Anodes
("led", 1, Pins("P19 L18 K18"), IOStandard("LVCMOS33")), # Cathodes via FET
("usb", 0,
Subsignal("d_p", Pins("F3")),
Subsignal("d_n", Pins("G3")),
Subsignal("pullup", Pins("E4")),
Subsignal("vbusdet", Pins("F4")),
IOStandard("LVCMOS33")
),
("keypad", 0,
Subsignal("left", Pins("G2"), Misc("PULLMODE=UP")),
Subsignal("right", Pins("F2"), Misc("PULLMODE=UP")),
Subsignal("up", Pins("F1"), Misc("PULLMODE=UP")),
Subsignal("down", Pins("C1"), Misc("PULLMODE=UP")),
Subsignal("start", Pins("E1"), Misc("PULLMODE=UP")),
Subsignal("select", Pins("D2"), Misc("PULLMODE=UP")),
Subsignal("a", Pins("D1"), Misc("PULLMODE=UP")),
Subsignal("b", Pins("E2"), Misc("PULLMODE=UP")),
),
("hdmi_out", 0,
Subsignal("clk_p", Pins("P20"), Inverted(), IOStandard("TMDS_33")),
Subsignal("clk_n", Pins("R20"), Inverted(), IOStandard("TMDS_33")),
Subsignal("data0_p", Pins("N19"), IOStandard("TMDS_33")),
Subsignal("data0_n", Pins("N20"), IOStandard("TMDS_33")),
Subsignal("data1_p", Pins("L20"), IOStandard("TMDS_33")),
Subsignal("data1_n", Pins("M20"), IOStandard("TMDS_33")),
Subsignal("data2_p", Pins("L16"), IOStandard("TMDS_33")),
Subsignal("data2_n", Pins("L17"), IOStandard("TMDS_33")),
Subsignal("hpd_notif", Pins("R18"), IOStandard("LVCMOS33"), Inverted()), # Also called HDMI_HEAC_n
Subsignal("hdmi_heac_p", Pins("T19"), IOStandard("LVCMOS33"), Inverted()),
Misc("DRIVE=4"),
),
("lcd", 0,
Subsignal("db", Pins("J3 H1 K4 J1 K3 K2 L4 K1 L3 L2 M4 L1 M3 M1 N4 N2 N3 N1"), IOStandard("LVCMOS33")),
Subsignal("rd", Pins("P2"), IOStandard("LVCMOS33")),
Subsignal("wr", Pins("P4"), IOStandard("LVCMOS33")),
Subsignal("rs", Pins("P1"), IOStandard("LVCMOS33")),
Subsignal("cs", Pins("P3"), IOStandard("LVCMOS33")),
Subsignal("id", Pins("J4"), IOStandard("LVCMOS33")),
Subsignal("rst", Pins("H2"), IOStandard("LVCMOS33")),
Subsignal("fmark", Pins("G1"), IOStandard("LVCMOS33")),
Subsignal("blen", Pins("P5"), IOStandard("LVCMOS33")),
),
("spiflash", 0, # clock needs to be accessed through USRMCLK
Subsignal("cs_n", Pins("R2"), IOStandard("LVCMOS33")),
Subsignal("mosi", Pins("W2"), IOStandard("LVCMOS33")),
Subsignal("miso", Pins("V2"), IOStandard("LVCMOS33")),
Subsignal("wp", Pins("Y2"), IOStandard("LVCMOS33")),
Subsignal("hold", Pins("W1"), IOStandard("LVCMOS33")),
),
("spiflash4x", 0, # clock needs to be accessed through USRMCLK
Subsignal("cs_n", Pins("R2"), IOStandard("LVCMOS33")),
Subsignal("dq", Pins("W2 V2 Y2 W1"), IOStandard("LVCMOS33")),
),
("spiram4x", 0,
Subsignal("cs_n", Pins("D20"), IOStandard("LVCMOS33"), Misc("SLEWRATE=SLOW")),
Subsignal("clk", Pins("E20"), IOStandard("LVCMOS33"), Misc("SLEWRATE=SLOW")),
Subsignal("dq", Pins("E19 D19 C20 F19"), IOStandard("LVCMOS33"), Misc("PULLMODE=UP"), Misc("SLEWRATE=SLOW")),
),
("spiram4x", 1,
Subsignal("cs_n", Pins("F20"), IOStandard("LVCMOS33"), Misc("SLEWRATE=SLOW")),
Subsignal("clk", Pins("J19"), IOStandard("LVCMOS33"), Misc("SLEWRATE=SLOW")),
Subsignal("dq", Pins("J20 G19 G20 H20"), IOStandard("LVCMOS33"), Misc("PULLMODE=UP"), Misc("SLEWRATE=SLOW")),
),
("sao", 0,
Subsignal("sda", Pins("B3")),
Subsignal("scl", Pins("B2")),
Subsignal("gpio", Pins("A2 A3 B4")),
Subsignal("drm", Pins("A4")),
),
("sao", 1,
Subsignal("sda", Pins("A16")),
Subsignal("scl", Pins("B17")),
Subsignal("gpio", Pins("B18 A17 B16")),
Subsignal("drm", Pins("C17")),
),
("testpts", 0,
Subsignal("a1", Pins("A15")),
Subsignal("a2", Pins("C16")),
Subsignal("a3", Pins("A14")),
Subsignal("a4", Pins("D16")),
Subsignal("b1", Pins("B15")),
Subsignal("b2", Pins("C15")),
Subsignal("b3", Pins("A13")),
Subsignal("b4", Pins("B13")),
),
# rev a
# ("sdram_clock", 0, Pins("C11"), IOStandard("LVCMOS33")),
# ("sdram", 0,
# Subsignal("a", Pins("D10 C10 B10 A10 C14 E17 A12 B12 H17 G18 A9 A11 A7")),
# Subsignal("dq", Pins("C5 A5 B6 D6 B5 C6 A6 C7")),
# Subsignal("we_n", Pins("C8")),
# Subsignal("ras_n", Pins("A8")),
# Subsignal("cas_n", Pins("B8")),
# Subsignal("cs_n", Pins("D9")),
# Subsignal("cke", Pins("B11")),
# Subsignal("ba", Pins("C9 B9")),
# Subsignal("dm", Pins("D11")),
# IOStandard("LVCMOS33"), Misc("SLEWRATE=FAST")
# ),
# rev b
("sdram_clock", 0, Pins("D11"), IOStandard("LVCMOS33")),
("sdram", 0,
Subsignal("a", Pins("A8 D9 C9 B9 C14 E17 A12 B12 H17 G18 B8 A11 B11")),
Subsignal("dq", Pins("C5 B5 A5 C6 B10 C10 D10 A9")),
Subsignal("we_n", Pins("B6")),
Subsignal("ras_n", Pins("D6")),
Subsignal("cas_n", Pins("A6")),
Subsignal("cs_n", Pins("C7")),
Subsignal("cke", Pins("C11")),
Subsignal("ba", Pins("A7 C8")),
Subsignal("dm", Pins("A10")),
IOStandard("LVCMOS33"), Misc("SLEWRATE=FAST")
),
# Only used for simulation
("wishbone", 0,
Subsignal("adr", Pins(30)),
Subsignal("dat_r", Pins(32)),
Subsignal("dat_w", Pins(32)),
Subsignal("sel", Pins(4)),
Subsignal("cyc", Pins(1)),
Subsignal("stb", Pins(1)),
Subsignal("ack", Pins(1)),
Subsignal("we", Pins(1)),
Subsignal("cti", Pins(3)),
Subsignal("bte", Pins(2)),
Subsignal("err", Pins(1))
),
("reset", 0, Pins(1), IOStandard("LVCMOS33")),
]
_connectors = [
("pmod", "A15 C16 A14 D16 B15 C15 A13 B13"),
("genio", "C5 B5 A5 C6 B6 A6 D6 C7 A7 C8 B8 A8 D9 C9 B9 A9 D10 C10 B10 A10 D11 C11 B11 A11 G18 H17 B12 A12 E17 C14"),
]
_pmod_gpio = [
("pmod_gpio", 0,
Subsignal("p0", Pins("pmod:0")),
Subsignal("p1", Pins("pmod:1")),
Subsignal("p2", Pins("pmod:2")),
Subsignal("p3", Pins("pmod:3")),
Subsignal("p4", Pins("pmod:4")),
Subsignal("p5", Pins("pmod:5")),
Subsignal("p6", Pins("pmod:6")),
Subsignal("p7", Pins("pmod:7")),
IOStandard("LVCMOS33")
),
]
_genio_gpio = [
("genio_gpio", 0,
Subsignal("p0", Pins("genio:0")),
Subsignal("p1", Pins("genio:1")),
Subsignal("p2", Pins("genio:2")),
Subsignal("p3", Pins("genio:3")),
Subsignal("p4", Pins("genio:4")),
Subsignal("p5", Pins("genio:5")),
Subsignal("p6", Pins("genio:6")),
Subsignal("p7", Pins("genio:7")),
Subsignal("p8", Pins("genio:8")),
Subsignal("p9", Pins("genio:9")),
Subsignal("p10", Pins("genio:10")),
Subsignal("p11", Pins("genio:11")),
Subsignal("p12", Pins("genio:12")),
Subsignal("p13", Pins("genio:13")),
Subsignal("p14", Pins("genio:14")),
Subsignal("p15", Pins("genio:15")),
Subsignal("p16", Pins("genio:16")),
Subsignal("p17", Pins("genio:17")),
Subsignal("p18", Pins("genio:18")),
Subsignal("p19", Pins("genio:19")),
Subsignal("p20", Pins("genio:20")),
Subsignal("p21", Pins("genio:21")),
Subsignal("p22", Pins("genio:22")),
Subsignal("p23", Pins("genio:23")),
Subsignal("p24", Pins("genio:24")),
Subsignal("p25", Pins("genio:25")),
Subsignal("p26", Pins("genio:26")),
Subsignal("p27", Pins("genio:27")),
Subsignal("p28", Pins("genio:28")),
Subsignal("p29", Pins("genio:29")),
)
]
# Platform -----------------------------------------------------------------------------------------
class Platform(LatticePlatform):
default_clk_name = "clk8"
default_clk_period = 1e9/8e6
def __init__(self, device="LFE5U-45F", **kwargs):
LatticePlatform.__init__(self, device + "-CABGA381", io=_io, connectors=_connectors, toolchain="trellis", **kwargs)
def create_programmer(self):
raise ValueError("{} programmer is not supported"
.format(self.programmer))
def do_finalize(self, fragment):
LatticePlatform.do_finalize(self, fragment)