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Merged
enjoy-digital merged 1 commit into from
Jul 30, 2026
+33 −8
Merged

targets: add SATA support to ECPIX-5 #773

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2 changes: 1 addition & 1 deletion docs/boards_inventory.md
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Original file line number Diff line number Diff line change
Expand Up @@ -97,7 +97,7 @@ python3 .github/scripts/generate_board_inventory.py --write
| `kosagi_fomu` | kosagi_fomu_pvt | icestorm | `12000000.0` | - | included |
| `kosagi_netv2` | kosagi_netv2 | vivado | `100000000.0` | Ethernet, SDCard, SPI SDCard, PCIe | included |
| `krtkl_snickerdoodle` | krtkl_snickerdoodle | vivado | `100000000.0` | - | included |
| `lambdaconcept_ecpix5` | lambdaconcept_ecpix5 | trellis | `75000000.0` | Ethernet, Etherbone, SDCard, Video Terminal, Video Framebuffer | included |
| `lambdaconcept_ecpix5` | lambdaconcept_ecpix5 | trellis | `75000000.0` | Ethernet, Etherbone, SDCard, SATA, Video Terminal, Video Framebuffer | included |
| `lattice_certus_nx_versa` | lattice_certus_nx_versa | radiant | `75000000.0` | SPI Flash | included |
| `lattice_certuspro_nx_evn` | lattice_certuspro_nx_evn | radiant | `75000000.0` | - | included |
| `lattice_certuspro_nx_versa` | lattice_certuspro_nx_versa | radiant | `75000000.0` | PCIe | included |
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5 changes: 1 addition & 4 deletions litex_boards/platforms/lambdaconcept_ecpix5.py
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Expand Up @@ -115,15 +115,12 @@
IOStandard("LVCMOS33"),
),

# Sata
# SATA (DCU1/CH0).
("sata", 0,
Subsignal("clk_p", Pins("AF12")),
Subsignal("clk_n", Pins("AF13")),
Subsignal("rx_p", Pins("AF15")),
Subsignal("rx_n", Pins("AF16")),
Subsignal("tx_p", Pins("AD16")),
Subsignal("tx_n", Pins("AD17")),
IOStandard("LVCMOS33"),
),

# SPIFlash
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34 changes: 31 additions & 3 deletions litex_boards/targets/lambdaconcept_ecpix5.py
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Expand Up @@ -28,7 +28,7 @@
# CRG ----------------------------------------------------------------------------------------------

class _CRG(LiteXModule):
def __init__(self, platform, sys_clk_freq):
def __init__(self, platform, sys_clk_freq, with_sata=False):
self.rst = Signal()
self.cd_init = ClockDomain()
self.cd_por = ClockDomain()
Expand Down Expand Up @@ -58,6 +58,16 @@ def __init__(self, platform, sys_clk_freq):
pll.register_clkin(clk100, 100e6)
pll.create_clkout(self.cd_sys2x_i, 2*sys_clk_freq)
pll.create_clkout(self.cd_init, 25e6)

plls_locked = pll.locked
if with_sata:
# Keep SATA's fixed reference independent from the variable system clock.
self.cd_sata_refclk = ClockDomain(reset_less=True)
self.sata_pll = sata_pll = ECP5PLL()
sata_pll.register_clkin(clk100, 100e6)
sata_pll.create_clkout(self.cd_sata_refclk, 150e6)
plls_locked = plls_locked & sata_pll.locked

self.specials += [
Instance("ECLKSYNCB",
i_ECLKI = self.cd_sys2x_i.clk,
Expand All @@ -69,7 +79,7 @@ def __init__(self, platform, sys_clk_freq):
i_CLKI = self.cd_sys2x.clk,
i_RST = self.reset,
o_CDIVX = self.cd_sys.clk),
AsyncResetSynchronizer(self.cd_sys, ~pll.locked | self.reset),
AsyncResetSynchronizer(self.cd_sys, ~plls_locked | self.reset),
]

# BaseSoC ------------------------------------------------------------------------------------------
Expand All @@ -81,14 +91,15 @@ def __init__(self, device="85F", sys_clk_freq=75e6, toolchain="trellis",
eth_ip = "192.168.1.50",
remote_ip = None,
eth_dynamic_ip = False,
with_sata = False,
with_video_terminal = False,
with_video_framebuffer = False,
with_led_chaser = True,
**kwargs):
platform = lambdaconcept_ecpix5.Platform(device=device, toolchain=toolchain)

# CRG --------------------------------------------------------------------------------------
self.crg = _CRG(platform, sys_clk_freq)
self.crg = _CRG(platform, sys_clk_freq, with_sata=with_sata)

# SoCCore ----------------------------------------------------------------------------------
SoCCore.__init__(self, platform, sys_clk_freq,
Expand Down Expand Up @@ -121,6 +132,21 @@ def __init__(self, device="85F", sys_clk_freq=75e6, toolchain="trellis",
if with_ethernet:
self.add_ethernet(phy=self.ethphy, dynamic_ip=eth_dynamic_ip, local_ip=eth_ip, remote_ip=remote_ip)

# SATA -------------------------------------------------------------------------------------
if with_sata:
from litesata.phy import LiteSATAPHY

self.sata_phy = LiteSATAPHY(platform.device,
refclk = self.crg.cd_sata_refclk.clk,
pads = platform.request("sata"),
gen = "gen2",
clk_freq = sys_clk_freq,
data_width = 16,
dual = 1,
channel = 0,
)
self.add_sata(phy=self.sata_phy, mode="read+write")

# HDMI -------------------------------------------------------------------------------------
if with_video_terminal or with_video_framebuffer:
# PHY + IT6613 I2C initialization.
Expand Down Expand Up @@ -234,6 +260,7 @@ def main():
parser.add_target_argument("--device", default="85F", help="ECP5 device (45F or 85F).")
parser.add_target_argument("--sys-clk-freq", default=75e6, type=float, help="System clock frequency.")
parser.add_target_argument("--with-sdcard", action="store_true", help="Enable SDCard support.")
parser.add_target_argument("--with-sata", action="store_true", help="Enable SATA support.")
ethopts = parser.target_group.add_mutually_exclusive_group()
ethopts.add_argument("--with-ethernet", action="store_true", help="Enable Ethernet support.")
ethopts.add_argument("--with-etherbone", action="store_true", help="Enable Etherbone support.")
Expand All @@ -255,6 +282,7 @@ def main():
eth_ip = args.eth_ip,
remote_ip = args.remote_ip,
eth_dynamic_ip = args.eth_dynamic_ip,
with_sata = args.with_sata,
with_video_terminal = args.with_video_terminal,
with_video_framebuffer = args.with_video_framebuffer,
**parser.soc_argdict
Expand Down