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earlephilhower / pico-quick-toolchain

GCC Cross-compiler chain for Raspberry Pi Pico
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Enabling openocd swd interfaces for raspberry pi #18

Closed codeTom closed 1 year ago

codeTom commented 2 years ago

The current configuration disables most openocd interfaces. Is there a specific reason for this beyond saving space/compilation time? On Raspberry Pi, having the ability to upload through SWD on GPIO is useful, can sysfsgpio and bcm2835gpio be enabled in openocd config?

https://github.com/earlephilhower/pico-quick-toolchain/blob/83a417da8d3470783009c16549d7ba52c7646a9a/Makefile#L274

https://github.com/earlephilhower/pico-quick-toolchain/blob/83a417da8d3470783009c16549d7ba52c7646a9a/Makefile#L281

earlephilhower commented 2 years ago

It's been a while but space/time was one reason. I think there were also some issues with dependencies for some of the options, too (everything I do is cross-built on my Linux box so I don't have full access to RPI/Mac/Windows libraries that are non-standard).

If you have some you'd like to see re-added (just those two?) let me know and I can give it a try and see if things build properly.

codeTom commented 2 years ago

Thanks, just those two to enable flashing via GPIO from raspberry pi. Good point about the dependencies, I'm hoping the openocd build system is clever enough to handle it (I can't test it at the moment, bizarrely due to disk space).

earlephilhower commented 2 years ago

Here is a tarball generated with --enable-<those 2 options> set. Looking at the config output, though, I don't think it actually added the BRCM or SYSFS bits due to dependencies.

arm-linux-gnueabihf.openocd-e3428fadb.221009.tar.gz

Let me know if it did work, and if so I can do a PR

codeTom commented 2 years ago

Thank you, it does include those bits and it successfully flashed my RP2040-based pi hat via SWD.