/HDMI2USB-litex-firmware

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from litex.build.generic_platform import *
from litex.build.xilinx import XilinxPlatform
_io = [
("clk100", 0, Pins("V10"), IOStandard("LVCMOS33")),
("clk12", 0, Pins("D9"), IOStandard("LVCMOS33")),
("serial", 0,
Subsignal("tx", Pins("B8"), IOStandard("LVCMOS33"),
Misc("SLEW=FAST")),
Subsignal("rx", Pins("A8"), IOStandard("LVCMOS33"),
Misc("SLEW=FAST"))),
("spiflash", 0,
Subsignal("cs_n", Pins("V3")),
Subsignal("clk", Pins("R15")),
Subsignal("mosi", Pins("T13")),
Subsignal("miso", Pins("R13"), Misc("PULLUP")),
IOStandard("LVCMOS33"), Misc("SLEW=FAST")),
("ddram_clock", 0,
Subsignal("p", Pins("G3")),
Subsignal("n", Pins("G1")),
IOStandard("MOBILE_DDR")),
("ddram", 0,
Subsignal("a", Pins("J7 J6 H5 L7 F3 H4 H3 H6 D2 D1 F4 D3 G6")),
Subsignal("ba", Pins("F2 F1")),
Subsignal("cke", Pins("H7")),
Subsignal("ras_n", Pins("L5")),
Subsignal("cas_n", Pins("K5")),
Subsignal("we_n", Pins("E3")),
Subsignal(
"dq", Pins("L2 L1 K2 K1 H2 H1 J3 J1 M3 M1 N2 N1 T2 T1 U2 U1")
),
Subsignal("dqs", Pins("L4 P2")),
Subsignal("dm", Pins("K3 K4")),
IOStandard("MOBILE_DDR")),
# Small DIP switches
# DP1 (user_sw:0) -> DP8 (user_sw:7)
("user_sw", 0, Pins("F17"), IOStandard("LVCMOS33"), Misc("PULLUP")),
("user_sw", 1, Pins("F18"), IOStandard("LVCMOS33"), Misc("PULLUP")),
("user_sw", 2, Pins("E16"), IOStandard("LVCMOS33"), Misc("PULLUP")),
("user_sw", 3, Pins("E18"), IOStandard("LVCMOS33"), Misc("PULLUP")),
("user_sw", 4, Pins("D18"), IOStandard("LVCMOS33"), Misc("PULLUP")),
("user_sw", 5, Pins("D17"), IOStandard("LVCMOS33"), Misc("PULLUP")),
("user_sw", 6, Pins("C18"), IOStandard("LVCMOS33"), Misc("PULLUP")),
("user_sw", 7, Pins("C17"), IOStandard("LVCMOS33"), Misc("PULLUP")),
# Despite being marked as "sw" these are actually buttons which need
# debouncing.
# sw1 (user_btn:0) through sw6 (user_btn:5)
("user_btn", 0, Pins("M18"), IOStandard("LVCMOS33"), Misc("PULLUP")),
("user_btn", 1, Pins("L18"), IOStandard("LVCMOS33"), Misc("PULLUP")),
("user_btn", 2, Pins("M16"), IOStandard("LVCMOS33"), Misc("PULLUP")),
("user_btn", 3, Pins("L17"), IOStandard("LVCMOS33"), Misc("PULLUP")),
("user_btn", 4, Pins("K17"), IOStandard("LVCMOS33"), Misc("PULLUP")),
# Use SW6 as the reset button for now.
("user_btn", 5, Pins("K18"), IOStandard("LVCMOS33"), Misc("PULLUP")),
# LEDs 1 through 8
("user_led", 0, Pins("P15"), IOStandard("LVCMOS33"), Drive(8)),
("user_led", 1, Pins("P16"), IOStandard("LVCMOS33"), Drive(8)),
("user_led", 2, Pins("N15"), IOStandard("LVCMOS33"), Drive(8)),
("user_led", 3, Pins("N16"), IOStandard("LVCMOS33"), Drive(8)),
("user_led", 4, Pins("U17"), IOStandard("LVCMOS33"), Drive(8)),
("user_led", 5, Pins("U18"), IOStandard("LVCMOS33"), Drive(8)),
("user_led", 6, Pins("T17"), IOStandard("LVCMOS33"), Drive(8)),
("user_led", 7, Pins("T18"), IOStandard("LVCMOS33"), Drive(8)),
("mmc", 0,
Subsignal("dat", Pins("K14 G18 J13 L13"), IOStandard("LVCMOS33"),
Misc("SLEW=FAST")),
Subsignal("cmd", Pins("G16"), IOStandard("LVCMOS33"),
Misc("SLEW=FAST")),
Subsignal("clk", Pins("L12"), IOStandard("LVCMOS33"),
Misc("SLEW=FAST"))),
("sevenseg", 0,
Subsignal("segment7", Pins("A3"), IOStandard("LVCMOS33")), # A
Subsignal("segment6", Pins("B4"), IOStandard("LVCMOS33")), # B
Subsignal("segment5", Pins("A4"), IOStandard("LVCMOS33")), # C
Subsignal("segment4", Pins("C4"), IOStandard("LVCMOS33")), # D
Subsignal("segment3", Pins("C5"), IOStandard("LVCMOS33")), # E
Subsignal("segment2", Pins("D6"), IOStandard("LVCMOS33")), # F
Subsignal("segment1", Pins("C6"), IOStandard("LVCMOS33")), # G
Subsignal("segment0", Pins("A5"), IOStandard("LVCMOS33")), # Dot
Subsignal("enable0", Pins("B2"), IOStandard("LVCMOS33")), # EN0
Subsignal("enable1", Pins("A2"), IOStandard("LVCMOS33")), # EN1
Subsignal("enable2", Pins("B3"), IOStandard("LVCMOS33"))), # EN2
("audio", 0,
Subsignal("channel1", Pins("B16"), IOStandard("LVCMOS33"),
Misc("SLEW=FAST")),
Subsignal("channel2", Pins("A16"), IOStandard("LVCMOS33"),
Misc("SLEW=FAST"))),
("vga_out", 0,
Subsignal("hsync_n", Pins("B12"), IOStandard("LVCMOS33"),
Misc("SLEW=FAST")),
Subsignal("vsync_n", Pins("A12"), IOStandard("LVCMOS33"),
Misc("SLEW=FAST")),
Subsignal("r", Pins("A9 B9 C9"), IOStandard("LVCMOS33"),
Misc("SLEW=FAST")),
Subsignal("g", Pins("C10 A10 C11"), IOStandard("LVCMOS33"),
Misc("SLEW=FAST")),
Subsignal("b", Pins("B11 A11"), IOStandard("LVCMOS33"),
Misc("SLEW=FAST")))
]
_connectors = [
("P6", "T3 R3 V5 U5 V4 T4 V7 U7"),
("P7", "V11 U11 V13 U13 T10 R10 T11 R11"),
("P8", "L16 L15 K16 K15 J18 J16 H18 H17")
]
class Platform(XilinxPlatform):
name = "mimasv2"
default_clk_name = "clk100"
default_clk_period = 10
# The MimasV2 has a XC6SLX9 which bitstream takes up ~2.6Mbit (1484472 bytes)
# 0x80000 offset (4Mbit) gives plenty of space
gateware_size = 0x80000
# M25P16 - component U1
# 16Mb - 75 MHz clock frequency
# FIXME: Create a "spi flash module" object in the same way we have SDRAM
# module objects.
# /* name, erase_cmd, chip_erase_cmd, device_id, pagesize, sectorsize, size_in_bytes */
# FLASH_ID("st m25p16", 0xd8, 0xc7, 0x00152020, 0x100, 0x10000, 0x200000),
spiflash_model = "m25p16"
spiflash_read_dummy_bits = 8
spiflash_clock_div = 4
spiflash_total_size = int((16/8)*1024*1024) # 16Mbit
spiflash_page_size = 256
spiflash_sector_size = 0x10000
def __init__(self):
XilinxPlatform.__init__(self, "xc6slx9-csg324-2", _io, _connectors)
def create_programmer(self):
raise NotImplementedError