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targets/nexys4ddr: add '--with-spi-sdcard' build option

This commit is contained in:
Gabriel Somlo 2020-03-19 19:13:47 -04:00
parent 7a7b8905b7
commit b960d7c574
1 changed files with 15 additions and 0 deletions
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15
litex/boards/targets/nexys4ddr.py
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@ -25,6 +25,8 @@ from litesdcard.core import SDCore
from litesdcard.bist import BISTBlockGenerator, BISTBlockChecker from litesdcard.bist import BISTBlockGenerator, BISTBlockChecker
from litex.soc.cores.timer import Timer from litex.soc.cores.timer import Timer
from litex.soc.cores.spi import SPIMaster
# CRG ---------------------------------------------------------------------------------------------- # CRG ----------------------------------------------------------------------------------------------
class _CRG(Module): class _CRG(Module):
@ -85,6 +87,13 @@ class BaseSoC(SoCCore):
self.add_csr("ethphy") self.add_csr("ethphy")
self.add_ethernet(phy=self.ethphy) self.add_ethernet(phy=self.ethphy)
def add_spisdcard(self):
spisdcard_pads = self.platform.request("spisdcard")
if hasattr(spisdcard_pads, "rst"):
self.comb += spisdcard_pads.rst.eq(0)
self.submodules.spisdcard = SPIMaster(spisdcard_pads, 8, self.sys_clk_freq, 400e3)
self.add_csr("spisdcard")
def add_sdcard(self): def add_sdcard(self):
sdcard_pads = self.platform.request("sdcard") sdcard_pads = self.platform.request("sdcard")
if hasattr(sdcard_pads, "rst"): if hasattr(sdcard_pads, "rst"):
@ -123,6 +132,8 @@ def main():
help="system clock frequency (default=75MHz)") help="system clock frequency (default=75MHz)")
parser.add_argument("--with-ethernet", action="store_true", parser.add_argument("--with-ethernet", action="store_true",
help="enable Ethernet support") help="enable Ethernet support")
parser.add_argument("--with-spi-sdcard", action="store_true",
help="enable SPI-mode SDCard support")
parser.add_argument("--with-sdcard", action="store_true", parser.add_argument("--with-sdcard", action="store_true",
help="enable SDCard support") help="enable SDCard support")
args = parser.parse_args() args = parser.parse_args()
@ -130,7 +141,11 @@ def main():
soc = BaseSoC(sys_clk_freq=int(float(args.sys_clk_freq)), soc = BaseSoC(sys_clk_freq=int(float(args.sys_clk_freq)),
with_ethernet=args.with_ethernet, with_ethernet=args.with_ethernet,
**soc_sdram_argdict(args)) **soc_sdram_argdict(args))
if args.with_spi_sdcard:
soc.add_spisdcard()
if args.with_sdcard: if args.with_sdcard:
if args.with_spi_sdcard:
raise ValueError("'--with-spi-sdcard' and '--with-sdcard' are mutually exclusive!")
soc.add_sdcard() soc.add_sdcard()
builder = Builder(soc, **builder_argdict(args)) builder = Builder(soc, **builder_argdict(args))
builder.build() builder.build()