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Merge pull request #179 from shenki/arty-numato-sdcard-pmod 

Numato sdcard pmod for Arty
This commit is contained in:
enjoy-digital 2021-02-25 09:38:17 +01:00 committed by GitHub
parent c55b606faf aa5c4f9e5a
commit 133ea64e3a
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2 changed files with 28 additions and 1 deletions
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23
litex_boards/platforms/arty.py
View File

@ -306,6 +306,29 @@ def sdcard_pmod_io(pmod):
]
_sdcard_pmod_io = sdcard_pmod_io("pmodd") # SDCARD PMOD on JD.
def numato_sdcard_pmod_io(pmod):
return [
# SDCard PMOD:
# https://numato.com/product/micro-sd-expansion-module/
# This adaptor does not have the card detect (CD) pin connected
("spisdcard", 0,
Subsignal("clk", Pins(f"{pmod}:5")),
Subsignal("mosi", Pins(f"{pmod}:1"), Misc("PULLUP True")),
Subsignal("cs_n", Pins(f"{pmod}:4"), Misc("PULLUP True")),
Subsignal("miso", Pins(f"{pmod}:2"), Misc("PULLUP True")),
Misc("SLEW=FAST"),
IOStandard("LVCMOS33"),
),
("sdcard", 0,
Subsignal("data", Pins(f"{pmod}:2 {pmod}:6 {pmod}:0 {pmod}:4"), Misc("PULLUP True")),
Subsignal("cmd", Pins(f"{pmod}:1"), Misc("PULLUP True")),
Subsignal("clk", Pins(f"{pmod}:5")),
Misc("SLEW=FAST"),
IOStandard("LVCMOS33"),
),
]
_numato_sdcard_pmod_io = numato_sdcard_pmod_io("pmodd") # SDCARD PMOD on JD.
# Platform -----------------------------------------------------------------------------------------
class Platform(XilinxPlatform):

6
litex_boards/targets/arty.py
View File

@ -119,6 +119,7 @@ def main():
sdopts = parser.add_mutually_exclusive_group()
sdopts.add_argument("--with-spi-sdcard", action="store_true", help="Enable SPI-mode SDCard support")
sdopts.add_argument("--with-sdcard", action="store_true", help="Enable SDCard support")
parser.add_argument("--sdcard-adapter", type=str, help="SDCard PMOD adapter: digilent (default) or numato")
parser.add_argument("--no-ident-version", action="store_false", help="Disable build time output")
builder_args(parser)
soc_sdram_args(parser)
@ -138,7 +139,10 @@ def main():
ident_version = args.no_ident_version,
**soc_sdram_argdict(args)
)
soc.platform.add_extension(arty._sdcard_pmod_io)
if args.sdcard_adapter == "numato":
soc.platform.add_extension(arty._numato_sdcard_pmod_io)
else:
soc.platform.add_extension(arty._sdcard_pmod_io)
if args.with_spi_sdcard:
soc.add_spi_sdcard()
if args.with_sdcard: