Skip to content
Snippets Groups Projects
Commit c11d0427 authored by Gijs Schoonderbeek's avatar Gijs Schoonderbeek
Browse files

Ping FPGA, 10Mbit to pi only what's needed

parent 6ce09ca7
No related branches found
No related tags found
1 merge request!2Modified the scripts to run on Raspberry Pi.
Show whitespace changes
Inline Side-by-side
Showing
with 67 additions and 86 deletions
spi_switch_Unb2c.py
+ 67
− 86
View file @ c11d0427
......@@ -31,6 +31,15 @@ device = 0
# Enable SPI
spi = spidev.SpiDev()
# Open a connection to a specific bus and device (chip select pin)
spi.open(bus, device)
# Set SPI speed and mode
spi.max_speed_hz = 1000000
#spi.max_speed_hz = 50000
spi.mode = 1
cmd_normal_read = 0x60
cmd_normal_write = 0x61
......@@ -75,12 +84,12 @@ def read_switch(page, addr, pr_stri = True):
print("read error")
return ret
def write_switch_bytes(page, addr, data):
def write_switch_bytes(page, addr, data, pr_stri = True):
stri = '> write switch from page: 0x{0:0>2x}, address: 0x{1:0>2x} data 0x'.format(page, addr)
for byte_cnt in range(len(data)):
# add_stri = "{0:0>2x}".format(data[len(data)-1-byte_cnt])
add_stri = "{0:0>2x}".format(data[-1-byte_cnt])
stri += add_stri
if pr_stri:
print(stri)
read_register(0xfe)
ret = spi.xfer2([cmd_normal_write, 0xff, page])
......@@ -112,6 +121,8 @@ def read_link_status(ports=16):
ret = read_switch(0x01,0x20+cnt, pr_stri = False)
if ret[1] & 0x01:
stri += "link up "
else:
stri += "link down "
if ret[1] & 0x02:
stri += "dupplex "
else:
......@@ -132,9 +143,7 @@ def read_link_status(ports=16):
if ret[2] & 0x04:
stri += "Rx: Er "
if ret[2] & 0x40:
stri += "Rx FIFO: Er "
else:
stri += "link down "
stri += "Rx FIFO Er "
print(stri)
# Read phy registister status
for cnt in range(4):
......@@ -148,11 +157,15 @@ def read_link_status(ports=16):
stri += "remote fault "
# print(stri)
ret = read_switch(0x80+cnt,0x14, pr_stri = False)
stri += " 1000BASE-T status ch{} ".format(cnt)
stri += " link status ch{} ".format(cnt)
if ret[2] & 0x10:
stri += "remote status is good "
else:
stri += "remote status is NOK "
if ret[2] & 0x20:
stri += "local status is good "
else:
stri += "local status is NOK "
if ret[2] & 0x40:
stri += "local master"
else:
......@@ -160,7 +173,8 @@ def read_link_status(ports=16):
else:
stri += " No link "
print(stri)
write_switch_bytes(0x80+cnt, 0x3c, [0x35, 0x08])
if 0:
write_switch_bytes(0x80+cnt, 0x3c, [0x35, 0x08], pr_stri = False)
ret = read_switch(0x80+cnt,0x3e)
if 0:
print("Drop packet count register")
......@@ -173,25 +187,16 @@ def read_link_status(ports=16):
read_switch(0x0,0x60 + cnt)
read_switch(0x0,0x10)
read_switch(0x0,0x20)
if 1:
print("Receive count register")
if 1:
print("Receive count register")
for cnt in range(16):
write_switch_bytes(0x10+cnt, 0x20, [0xD0, 0x09])
# Set to receive packet count
write_switch_bytes(0x10+cnt, 0x20, [0xD0, 0x09], pr_stri = False)
time.sleep(0.5)
for cnt in range(16):
# read_switch(0x41,0x80+2*cnt)
read_switch(0x10+cnt,0x2e)
# Open a connection to a specific bus and device (chip select pin)
spi.open(bus, device)
# Set SPI speed and mode
spi.max_speed_hz = 1000000
#spi.max_speed_hz = 50000
spi.mode = 1
if len(sys.argv) < 2:
......@@ -208,57 +213,33 @@ if len(sys.argv) < 2:
elif sys.argv[1] == "stat":
read_link_status(16)
elif sys.argv[1] == "set":
#b print("write and read led register")
#b write_switch_bytes(0x00, 0x24, [0x20, 0x02]) #LSB first
#b read_switch(0x00,0x24)
#nth print("write and read jumbo register")
#nth write_switch_bytes(0x40, 0x01, [0xff, 0xff, 0x00, 0x00])
#nth read_switch(0x40,0x01)
#b print("strap resistors")
#b read_switch(0x01,0x70)
# Extra setting for the switch, not needed, bonus settings
if 0:
print("write and read led register")
write_switch_bytes(0x00, 0x24, [0x20, 0x02]) #LSB first
read_switch(0x00,0x24)
print("write and read jumbo register")
write_switch_bytes(0x40, 0x01, [0xff, 0xff, 0x00, 0x00])
read_switch(0x40,0x01)
print("strap resistors")
read_switch(0x01,0x70)
# required setting for the switch
if 1:
# for ch_cnt in range(16):
# print("write and read SGMII register CH0, fifo size max")
# write_switch_bytes(0x10, 0x24, [0x44, 0x00])
# read_switch(0x10,0x24)
# print("write and read SGMII register CH3, fifo size max")
# write_switch_bytes(0x13, 0x24, [0x44, 0x00])
# read_switch(0x13,0x24)
# write_switch_bytes(0x0, 0x20, [0x06]) #Switch mode)
# for cnt in range(16):
# write_switch_bytes(0x0, 0x0+cnt, [0x00]) #Overwrite strapping resistor unmanaged mode
# write_switch_bytes(0x10+ch_cnt, 0x24, [0x44, 0x00])
# read_switch(0x10+ch_cnt,0x24)
speed_100Mbit = False
speed_1000Mbit = False
for ch_cnt in range(4):
print("Set PHY ch 0 and read back to 10 Mbit 0x01 100Mbit 0x21")
write_switch_bytes(0x80+0, 0x00, [0x00, 0x01])
#b ret = read_switch(0x80,0x00)
print("Set PHY ch 1 and read back to 10 Mbit 0x01 100Mbit 0x21")
write_switch_bytes(0x00, 0x60+1, [0x8B])
write_switch_bytes(0x10+1, 0x00, [0x40, 0x11])
write_switch_bytes(0x80+1, 0x00, [0x40, 0x01])
#1 write_switch_bytes(0x10+1, 0x00, [0x00, 0x01])
#1 print("Set PHY ch 3 and read back to 10 Mbit 0x01 100Mbit 0x21")
#1 write_switch_bytes(0x80+3, 0x00, [0x00, 0x01])
#b ret = read_switch(0x80+3,0x00)
#1 write_switch_bytes(0x00, 0x86, [0xa0]) # no polling (make no difference)
for cnt in [15, 14, 13, 12, 11, 10, 9, 8]: #, 7, 6, 5, 4]:
write_switch_bytes(0x00, 0x60+cnt, [0x8B])
write_switch_bytes(0x80 + ch_cnt, 0x00, [(0x00 | (speed_1000Mbit << 6)), (0x01 | (speed_100Mbit << 5))])
write_switch_bytes(0x00, 0x60 + ch_cnt, [(0x83 | (speed_100Mbit << 2) | (speed_1000Mbit << 3))]) # fix PHY ports to 10 Mbit
# Set the FPGA links to disable Auto negatiation
for cnt in [15, 13, 11, 9]: # only ETH0 interface
write_switch_bytes(0x00, 0x60+cnt, [0x8B]) #Fix FPGA links
else:
print("spi_switch_Unb2c stat for status")
print("spi_switch_Unb2c set to set registers")
# Not working as espected
#print("switch off ch 0")
#write_switch_bytes(0x10, 0x00, [0x18, 0x40, 0x18, 0x40])
#read_switch(0x10,0x00)
if 0:
print("Tx pause status ")
read_switch(0x01,0x14)
print("Rx pause status ")
read_switch(0x01,0x18)
write_switch_bytes(0x30, 0x00, [0x40])
read_switch(0x30,0x00)
write_switch_bytes(0x00, 0x20, [0x11])
read_switch(0x00,0x20)
spi.close()
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Please register or to comment