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Merge pull request #1886 from trabucayre/etherbone_hybrid_ip_mac
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Etherbone hybrid ip mac
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enjoy-digital authored Feb 7, 2024
2 parents 13c57e8 + 7f21104 commit 0ed44a2
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Showing 2 changed files with 28 additions and 8 deletions.
32 changes: 24 additions & 8 deletions litex/soc/integration/soc.py
Original file line number Diff line number Diff line change
Expand Up @@ -41,6 +41,18 @@ def build_time(with_time=True):
fmt = "%Y-%m-%d %H:%M:%S" if with_time else "%Y-%m-%d"
return datetime.datetime.fromtimestamp(time.time()).strftime(fmt)

def add_ip_address_constants(soc, name, ip_address):
_ip_address = ip_address.split(".")
assert len(_ip_address) == 4
for n in range(4):
assert int(_ip_address[n]) < 256
soc.add_constant(f"{name}{n+1}", int(_ip_address[n]))

def add_mac_address_constants(soc, name, mac_address):
assert mac_address < 2**48
for n in range(6):
soc.add_constant(f"{name}{n+1}", (mac_address >> ((5 - n) * 8)) & 0xff)

# SoCError -----------------------------------------------------------------------------------------

class SoCError(Exception):
Expand Down Expand Up @@ -1771,16 +1783,10 @@ def add_ethernet(self, name="ethmac", phy=None, phy_cd="eth", dynamic_ip=False,
self.add_constant("ETH_DYNAMIC_IP")

# Local/Remote IP Configuration (optional).
def add_ip_constants(name, ip):
_ip = ip.split(".")
assert len(_ip) == 4
for n in range(4):
assert int(_ip[n]) < 256
self.add_constant(f"{name}{n+1}", int(_ip[n]))
if local_ip:
add_ip_constants("LOCALIP", local_ip)
add_ip_address_constants(self, "LOCALIP", local_ip)
if remote_ip:
add_ip_constants("REMOTEIP", remote_ip)
add_ip_address_constants(self, "REMOTEIP", remote_ip)

# Software Debug
if software_debug:
Expand All @@ -1803,6 +1809,9 @@ def add_ip_constants(name, ip):
def add_etherbone(self, name="etherbone", phy=None, phy_cd="eth", data_width=8,
mac_address = 0x10e2d5000000,
ip_address = "192.168.1.50",
ethernet_mac_address = 0x10e2d5000001,
ethernet_local_ip = "192.168.1.51",
ethernet_remote_ip = "192.168.1.100",
arp_entries = 1,
udp_port = 1234,
buffer_depth = 16,
Expand Down Expand Up @@ -1865,6 +1874,9 @@ def add_etherbone(self, name="etherbone", phy=None, phy_cd="eth", data_width=8,

# Ethernet MAC (CPU).
if with_ethmac:
assert mac_address != ethernet_mac_address
assert ip_address != ethernet_local_ip

self.check_if_exists("ethmac")
ethcore.autocsr_exclude = {"mac"}
# Software Interface.
Expand All @@ -1878,6 +1890,10 @@ def add_etherbone(self, name="etherbone", phy=None, phy_cd="eth", data_width=8,

self.add_constant("ETH_PHY_NO_RESET") # Disable reset from BIOS to avoid disabling Hardware Interface.

add_ip_address_constants(self, "LOCALIP", ethernet_local_ip)
add_ip_address_constants(self, "REMOTEIP", ethernet_remote_ip)
add_mac_address_constants(self, "MACADDR", ethernet_mac_address)

# Add SPI Flash --------------------------------------------------------------------------------
def add_spi_flash(self, name="spiflash", mode="4x", clk_freq=20e6, module=None, phy=None, rate="1:1", software_debug=False, **kwargs):
# Imports.
Expand Down
4 changes: 4 additions & 0 deletions litex/soc/software/bios/boot.c
Original file line number Diff line number Diff line change
Expand Up @@ -304,7 +304,11 @@ int serialboot(void)
#define TFTP_SERVER_PORT 69
#endif

#ifdef MACADDR1
static unsigned char macadr[6] = {MACADDR1, MACADDR2, MACADDR3, MACADDR4, MACADDR5, MACADDR6};
#else
static unsigned char macadr[6] = {0x10, 0xe2, 0xd5, 0x00, 0x00, 0x00};
#endif

#ifdef LOCALIP1
static unsigned int local_ip[4] = {LOCALIP1, LOCALIP2, LOCALIP3, LOCALIP4};
Expand Down

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