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Merge pull request #521 from josuah/crosslink_nx_spi_flash 

platforms/crosslink_nx_evn: add SPI flash support
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enjoy-digital 2023-08-28 16:33:02 +02:00 committed by GitHub
parent efb76133be 2c3d77b5be
commit 387e361a55
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1 changed files with 9 additions and 0 deletions
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litex_boards/targets/lattice_crosslink_nx_evn.py
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@ -69,6 +69,7 @@ class BaseSoC(SoCCore):
} }
def __init__(self, sys_clk_freq=75e6, device="LIFCL-40-9BG400C", toolchain="radiant", def __init__(self, sys_clk_freq=75e6, device="LIFCL-40-9BG400C", toolchain="radiant",
with_led_chaser = True, with_led_chaser = True,
with_spi_flash = False,
with_uartbone = False, with_uartbone = False,
**kwargs): **kwargs):
platform = lattice_crosslink_nx_evn.Platform(device=device, toolchain=toolchain) platform = lattice_crosslink_nx_evn.Platform(device=device, toolchain=toolchain)
@ -98,6 +99,12 @@ class BaseSoC(SoCCore):
if with_uartbone: if with_uartbone:
self.add_uartbone() self.add_uartbone()
# SPI Flash --------------------------------------------------------------------------------
if with_spi_flash:
from litespi.modules import MX25L12833F
from litespi.opcodes import SpiNorFlashOpCodes as Codes
self.add_spi_flash(mode="4x", clk_freq=100_000, module=MX25L12833F(Codes.READ_4_4_4), with_master=True)
# Build -------------------------------------------------------------------------------------------- # Build --------------------------------------------------------------------------------------------
@ -110,6 +117,7 @@ def main():
parser.add_target_argument("--programmer", default="radiant", help="Programmer (radiant or ecpprog).") parser.add_target_argument("--programmer", default="radiant", help="Programmer (radiant or ecpprog).")
parser.add_target_argument("--address", default=0x0, help="Flash address to program bitstream at.") parser.add_target_argument("--address", default=0x0, help="Flash address to program bitstream at.")
parser.add_target_argument("--prog-target", default="direct", help="Programming Target (direct or flash).") parser.add_target_argument("--prog-target", default="direct", help="Programming Target (direct or flash).")
parser.add_target_argument("--with-spi-flash", action="store_true", help="Enable SPI Flash (MMAPed).")
parser.add_target_argument("--with-uartbone", action="store_true", help="Add UartBone on 1st serial.") parser.add_target_argument("--with-uartbone", action="store_true", help="Add UartBone on 1st serial.")
args = parser.parse_args() args = parser.parse_args()
@ -117,6 +125,7 @@ def main():
sys_clk_freq = args.sys_clk_freq, sys_clk_freq = args.sys_clk_freq,
device = args.device, device = args.device,
toolchain = args.toolchain, toolchain = args.toolchain,
with_spi_flash = args.with_spi_flash,
with_uartbone = args.with_uartbone, with_uartbone = args.with_uartbone,
**parser.soc_argdict **parser.soc_argdict
) )