5956466c0e
The following changes are made: - If MICROPY_VFS is enabled then mp_vfs_import_stat and mp_vfs_open are automatically used for mp_import_stat and mp_builtin_open respectively. - If MICROPY_PY_IO is enabled then "open" is automatically included in the set of builtins, and points to mp_builtin_open_obj. This helps to clean up and simplify the most common port configuration. Signed-off-by: Damien George <damien@micropython.org> |
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|---|---|---|
| .. | ||
| Makefile | ||
| README.md | ||
| frozentest.mpy | ||
| frozentest.py | ||
| head.S | ||
| main.c | ||
| mpconfigport.h | ||
| mphalport.h | ||
| powerpc.lds | ||
| qstrdefsport.h | ||
| uart_lpc_serial.c | ||
| uart_lpc_serial.h | ||
| uart_potato.c | ||
| uart_potato.h | ||
| unistd.h | ||
README.md
The PowerPC port that runs on microwatt and qemu
This port is intended to be a minimal MicroPython port that runs in QEMU, microwatt simulator with ghdl or microwatt on Xilinx FPGA with potato UART.
Building
By default the port will be built with the potato uart for microwatt:
$ make
To instead build for a machine with LPC serial, such as QEMU powernv:
$ make UART=lpc_serial
Cross compilation for POWERPC
If you need to cross compilers you'll want to grab a powerpc64le compiler (not powerpc or powerpc64).
On Ubuntu (18.04) you'll want:
$ apt install gcc-powerpc64le-linux-gnu
(Use CROSS_COMPILE=powerpc64le-linux-gnu-)
If your distro doesn't have cross compilers, you can get cross compilers here:
- https://toolchains.bootlin.com/ (use CROSS_COMPILE=powerpc64le-buildroot-linux-gnu-)
(Avoid musl libc as it defines __assert_fail() differently to glibc which breaks the micropython powerpc code)
Then do:
$ make CROSS_COMPILE=<compiler prefix>
Building will produce the build/firmware.bin file which can be used QEMU or microwatt.
To run in QEMU use:
$ ./qemu-system-ppc64 -M powernv -cpu POWER9 -nographic -bios build/firmware.bin