66 lines
1.9 KiB
Python
66 lines
1.9 KiB
Python
|
import subprocess
|
||
|
|
import os
|
||
|
|
|
||
|
|
class Programmer:
|
||
|
|
def __init__(self, platform_name, flash_proxy_dir):
|
||
|
|
self.platform_name = platform_name
|
||
|
|
self.flash_proxy_dir = flash_proxy_dir
|
||
|
|
|
||
|
|
def find_flash_proxy(self, name):
|
||
|
|
if self.flash_proxy_dir is not None:
|
||
|
|
search_dirs = [self.flash_proxy_dir]
|
||
|
|
else:
|
||
|
|
search_dirs = ["~/.mlabs", "/usr/local/share/mlabs", "/usr/share/mlabs"]
|
||
|
|
for d in search_dirs:
|
||
|
|
fulldir = os.path.abspath(os.path.expanduser(d))
|
||
|
|
fullname = os.path.join(fulldir, name)
|
||
|
|
if os.path.exists(fullname):
|
||
|
|
return fullname
|
||
|
|
raise OSError("Failed to find flash proxy bitstream")
|
||
|
|
|
||
|
|
def _run_urjtag(cmds):
|
||
|
|
with subprocess.Popen("jtag", stdin=subprocess.PIPE) as process:
|
||
|
|
process.stdin.write(cmds.encode("ASCII"))
|
||
|
|
process.communicate()
|
||
|
|
|
||
|
|
class UrJTAG(Programmer):
|
||
|
|
needs_bitreverse = True
|
||
|
|
|
||
|
|
def load_bitstream(self, bitstream_file):
|
||
|
|
cmds = """cable milkymist
|
||
|
|
detect
|
||
|
|
pld load {bitstream}
|
||
|
|
quit
|
||
|
|
""".format(bitstream=bitstream_file)
|
||
|
|
_run_urjtag(cmds)
|
||
|
|
|
||
|
|
def flash(self, address, data_file):
|
||
|
|
flash_proxy = self.find_flash_proxy("fjmem-" + self.platform_name + ".bit")
|
||
|
|
cmds = """cable milkymist
|
||
|
|
detect
|
||
|
|
pld load "{flash_proxy}"
|
||
|
|
initbus fjmem opcode=000010
|
||
|
|
frequency 6000000
|
||
|
|
detectflash 0
|
||
|
|
endian big
|
||
|
|
flashmem "{address}" "{data_file}" noverify
|
||
|
|
""".format(flash_proxy=flash_proxy, address=address, data_file=data_file)
|
||
|
|
_run_urjtag(cmds)
|
||
|
|
|
||
|
|
class XC3SProg(Programmer):
|
||
|
|
needs_bitreverse = False
|
||
|
|
|
||
|
|
def load_bitstream(self, bitstream_file):
|
||
|
|
subprocess.call(["xc3sprog", "-c", "papilio", bitstream_file])
|
||
|
|
|
||
|
|
def flash(self, address, data_file):
|
||
|
|
flash_proxy = self.find_flash_proxy("bscan_spi_lx9_papilio.bit")
|
||
|
|
subprocess.call(["xc3sprog", "-c", "papilio", "-I"+flash_proxy, "{}:w:0x{:x}:BIN".format(data_file, address)])
|
||
|
|
|
||
|
|
def create_programmer(platform_name, *args, **kwargs):
|
||
|
|
return {
|
||
|
|
"mixxeo": UrJTAG,
|
||
|
|
"m1": UrJTAG,
|
||
|
|
"papilio_pro": XC3SProg
|
||
|
|
}[platform_name](platform_name, *args, **kwargs)
|