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Merge pull request #190 from kazkojima/colorlight_i5-video 

colorlight_i5: Integrate Video Terminal and Video Framebuffer with ne…
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enjoy-digital 2021-03-25 10:28:52 +01:00 committed by GitHub
parent 47bdf5f759 cb4e00c3f2
commit 219067ed3a
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2 changed files with 50 additions and 17 deletions
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12
litex_boards/platforms/colorlight_i5.py
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@ -95,6 +95,18 @@ _io_v7_0 = [ # Documented by @smunaut
Subsignal("tx_data", Pins("U20 T19 T20 R20")),
IOStandard("LVCMOS33")
),
# GPDI
("gpdi", 0,
Subsignal("clk_p", Pins("J19"), IOStandard("LVCMOS33D"), Misc("DRIVE=4")),
#Subsignal("clk_n", Pins("K19"), IOStandard("LVCMOS33D"), Misc("DRIVE=4")),
Subsignal("data0_p", Pins("G19"), IOStandard("LVCMOS33D"), Misc("DRIVE=4")),
#Subsignal("data0_n", Pins("H20"), IOStandard("LVCMOS33D"), Misc("DRIVE=4")),
Subsignal("data1_p", Pins("E20"), IOStandard("LVCMOS33D"), Misc("DRIVE=4")),
#Subsignal("data1_n", Pins("F19"), IOStandard("LVCMOS33D"), Misc("DRIVE=4")),
Subsignal("data2_p", Pins("C20"), IOStandard("LVCMOS33D"), Misc("DRIVE=4")),
#Subsignal("data2_n", Pins("D19"), IOStandard("LVCMOS33D"), Misc("DRIVE=4")),
),
]
# From https://github.com/wuxx/Colorlight-FPGA-Projects/blob/master/schematic/i5_v6.0-extboard.pdf and

55
litex_boards/targets/colorlight_i5.py
View File

@ -11,21 +11,18 @@ import argparse
import sys
from migen import *
from migen.genlib.resetsync import AsyncResetSynchronizer
from litex.build.io import DDROutput
from litex_boards.platforms import colorlight_i5
from litex.build.tools import write_to_file
from litex.build.lattice.trellis import trellis_args, trellis_argdict
from litex.soc.cores.clock import *
from litex.soc.cores.spi_flash import SpiFlash
from litex.soc.cores.spi import SPIMaster
from litex.soc.integration.soc_core import *
from litex.soc.integration.builder import *
from litex.soc.cores.video import VideoECP5HDMIPHY
from litex.soc.cores.led import LedChaser
from litex.soc.interconnect.csr import *
@ -49,7 +46,7 @@ class _PRBSSource(Module, AutoCSR):
# CRG ----------------------------------------------------------------------------------------------
class _CRG(Module):
def __init__(self, platform, sys_clk_freq, use_internal_osc=False, with_usb_pll=False, sdram_rate="1:1"):
def __init__(self, platform, sys_clk_freq, use_internal_osc=False, with_usb_pll=False, with_video_pll=False, sdram_rate="1:1"):
self.rst = Signal()
self.clock_domains.cd_sys = ClockDomain()
if sdram_rate == "1:2":
@ -95,6 +92,16 @@ class _CRG(Module):
usb_pll.create_clkout(self.cd_usb_12, 12e6, margin=0)
usb_pll.create_clkout(self.cd_usb_48, 48e6, margin=0)
# Video PLL
if with_video_pll:
self.submodules.video_pll = video_pll = ECP5PLL()
self.comb += video_pll.reset.eq(~rst_n | self.rst)
video_pll.register_clkin(clk, clk_freq)
self.clock_domains.cd_hdmi = ClockDomain()
self.clock_domains.cd_hdmi5x = ClockDomain()
video_pll.create_clkout(self.cd_hdmi, 40e6, margin=0)
video_pll.create_clkout(self.cd_hdmi5x, 200e6, margin=0)
# SDRAM clock
sdram_clk = ClockSignal("sys2x_ps" if sdram_rate == "1:2" else "sys_ps")
self.specials += DDROutput(1, 0, platform.request("sdram_clock"), sdram_clk)
@ -103,7 +110,7 @@ class _CRG(Module):
class BaseSoC(SoCCore):
mem_map = {**SoCCore.mem_map, **{"spiflash": 0xd0000000}}
def __init__(self, board="i5", revision="7.0", sys_clk_freq=60e6, with_ethernet=False, with_etherbone=False, local_ip="", remote_ip="", eth_phy=0, use_internal_osc=False, sdram_rate="1:1", with_prbs=False, **kwargs):
def __init__(self, board="i5", revision="7.0", sys_clk_freq=60e6, with_ethernet=False, with_etherbone=False, local_ip="", remote_ip="", eth_phy=0, use_internal_osc=False, sdram_rate="1:1", with_video_terminal=False, with_video_framebuffer=False, with_prbs=False, **kwargs):
board = board.lower()
assert board in ["i5"]
if board == "i5":
@ -117,7 +124,8 @@ class BaseSoC(SoCCore):
# CRG --------------------------------------------------------------------------------------
with_usb_pll = kwargs.get("uart_name", None) == "usb_acm"
self.submodules.crg = _CRG(platform, sys_clk_freq, use_internal_osc=use_internal_osc, with_usb_pll=with_usb_pll, sdram_rate=sdram_rate)
with_video_pll = with_video_terminal or with_video_framebuffer
self.submodules.crg = _CRG(platform, sys_clk_freq, use_internal_osc=use_internal_osc, with_usb_pll=with_usb_pll, with_video_pll=with_video_pll, sdram_rate=sdram_rate)
# Leds -------------------------------------------------------------------------------------
ledn = platform.request_all("user_led_n")
@ -169,6 +177,14 @@ class BaseSoC(SoCCore):
self.add_constant("REMOTEIP3", int(remote_ip[2]))
self.add_constant("REMOTEIP4", int(remote_ip[3]))
# Video ------------------------------------------------------------------------------------
if with_video_terminal or with_video_framebuffer:
self.submodules.videophy = VideoECP5HDMIPHY(platform.request("gpdi"), clock_domain="hdmi")
if with_video_terminal:
self.add_video_terminal(phy=self.videophy, timings="800x600@60Hz", clock_domain="hdmi")
if with_video_framebuffer:
self.add_video_framebuffer(phy=self.videophy, timings="800x600@60Hz", clock_domain="hdmi")
# PRBS -------------------------------------------------------------------------------------
if with_prbs:
self.submodules.prbs = _PRBSSource()
@ -195,22 +211,27 @@ def main():
parser.add_argument("--sdram-rate", default="1:1", help="SDRAM Rate: 1:1 Full Rate (default), 1:2 Half Rate")
parser.add_argument("--l2-size", default=8192, type=int, help="L2 cache size")
parser.add_argument("--with-prbs", action="store_true", help="Enable PRBS support")
viopts = parser.add_mutually_exclusive_group()
viopts.add_argument("--with-video-terminal", action="store_true", help="Enable Video Terminal (HDMI)")
viopts.add_argument("--with-video-framebuffer", action="store_true", help="Enable Video Framebuffer (HDMI)")
builder_args(parser)
soc_core_args(parser)
trellis_args(parser)
args = parser.parse_args()
soc = BaseSoC(board=args.board, revision=args.revision,
sys_clk_freq = int(float(args.sys_clk_freq)),
with_ethernet = args.with_ethernet,
with_etherbone = args.with_etherbone,
local_ip = args.local_ip,
remote_ip = args.remote_ip,
eth_phy = args.eth_phy,
use_internal_osc = args.use_internal_osc,
sdram_rate = args.sdram_rate,
l2_size = args.l2_size,
with_prbs = args.with_prbs,
sys_clk_freq = int(float(args.sys_clk_freq)),
with_ethernet = args.with_ethernet,
with_etherbone = args.with_etherbone,
local_ip = args.local_ip,
remote_ip = args.remote_ip,
eth_phy = args.eth_phy,
use_internal_osc = args.use_internal_osc,
sdram_rate = args.sdram_rate,
l2_size = args.l2_size,
with_prbs = args.with_prbs,
with_video_terminal = args.with_video_terminal,
with_video_framebuffer = args.with_video_framebuffer,
**soc_core_argdict(args)
)
soc.platform.add_extension(colorlight_i5._sdcard_pmod_io)