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build/DFUProg: Allow to specify alt interface and to not reboot 

Some targets have multiple alt settings for DFU for different zone
of the flash. Allowing to specify which one to flash and not
rebooting immediately allows to flash several of them at once.

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
This commit is contained in:
Sylvain Munaut 2021-06-21 16:12:55 +02:00
parent d6f24f2f68
commit 38e46bb3d3
1 changed files with 10 additions and 3 deletions
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13
litex/build/dfu.py
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@ -14,11 +14,18 @@ from litex.build.generic_programmer import GenericProgrammer
class DFUProg(GenericProgrammer): class DFUProg(GenericProgrammer):
needs_bitreverse = False needs_bitreverse = False
def __init__(self, vid, pid): def __init__(self, vid, pid, alt=None):
self.vid = vid self.vid = vid
self.pid = pid self.pid = pid
self.alt = alt
def load_bitstream(self, bitstream_file): def load_bitstream(self, bitstream_file, reset=True):
subprocess.call(["cp", bitstream_file, bitstream_file + ".dfu"]) subprocess.call(["cp", bitstream_file, bitstream_file + ".dfu"])
subprocess.call(["dfu-suffix", "-v", self.vid, "-p", self.pid, "-a", bitstream_file + ".dfu"]) subprocess.call(["dfu-suffix", "-v", self.vid, "-p", self.pid, "-a", bitstream_file + ".dfu"])
subprocess.call(["dfu-util", "--download", bitstream_file + ".dfu", "-R"])
flash_cmd = ["dfu-util", "--download", bitstream_file + ".dfu"]
if reset:
flash_cmd.append("-R")
if self.alt is not None:
flash_cmd.extend(["-a", str(self.alt)])
subprocess.call(flash_cmd)