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soc/cores/cpu/zynqmp/core.py: add_ethernet: added gt_location required by SGMII

This commit is contained in:
Gwenhael Goavec-Merou 2024-10-10 17:28:29 +02:00
parent 2935b7afb1
commit 7f04cafe08
1 changed files with 9 additions and 4 deletions
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13
litex/soc/cores/cpu/zynqmp/core.py
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@ -171,6 +171,8 @@ class ZynqMP(CPU):
Physical ethernet interface (gmii, rgmii, sgmii).
reset: Signal
Reset signal between PS and converter (required for SGMII).
gt_location: str
for SGMII Pads location (XaYb) (Required for SGMII).
with_ptp: bool
Enable PTP support.
"""
@ -178,6 +180,7 @@ class ZynqMP(CPU):
pads = None,
clock_pads = None,
if_type = "gmii",
gt_location= None,
reset = None,
with_ptp = False):
assert n < 3 and not n in self.gem_mac
@ -299,8 +302,10 @@ class ZynqMP(CPU):
o_speed_mode = Open(2),
)
self.specials += Instance(f"gem{n}", **mac_params)
self.gem_mac[n] = "rgmii"
self.gem_mac[n] = ("rgmii", None)
else:
assert gt_location is not None
pwrgood = Signal()
status = Signal(16)
reset_done = Signal(1)
@ -428,7 +433,7 @@ class ZynqMP(CPU):
]
self.specials += Instance(f"gem{n}", **mac_params)
self.gem_mac[n] = "sgmii"
self.gem_mac[n] = ("sgmii", gt_location)
def add_i2c(self, n, pads):
assert n < 2 and not n in self.i2c_use
@ -568,7 +573,7 @@ class ZynqMP(CPU):
if len(self.gem_mac):
mac_tcl = []
for i, if_type in self.gem_mac.items():
for i, (if_type, gt_location) in self.gem_mac.items():
ip_name = {"rgmii": "gmii_to_rgmii", "sgmii": "gig_ethernet_pcs_pma"}[if_type]
mac_tcl.append(f"set gem{i} [create_ip -vendor xilinx.com -name {ip_name} -module_name gem{i}]")
mac_tcl.append("set_property -dict [ list \\")
@ -583,7 +588,7 @@ class ZynqMP(CPU):
mac_tcl.append("CONFIG.{} {} \\".format("DIFFCLK_BOARD_INTERFACE", '{{Custom}}'))
mac_tcl.append("CONFIG.{} {} \\".format("DrpClkRate", '{{50.0000}}'))
mac_tcl.append("CONFIG.{} {} \\".format("EMAC_IF_TEMAC", '{{GEM}}'))
mac_tcl.append("CONFIG.{} {} \\".format("GT_Location", '{{X1Y13}}'))
mac_tcl.append("CONFIG.{} {} \\".format(f"GT_Location", '{{' + gt_location + '}}'))
mac_tcl.append("CONFIG.{} {} \\".format("RefClkRate", '{{156.25}}'))
mac_tcl.append("CONFIG.{} {} \\".format("Standard", '{{SGMII}}'))
mac_tcl.append("CONFIG.{} {} \\".format("SupportLevel", '{{Include_Shared_Logic_in_Core}}'))