45 lines
1.2 KiB
Markdown
45 lines
1.2 KiB
Markdown
# 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](https://github.com/antonblanchard/microwatt).
|
|
|
|
To run in QEMU use:
|
|
|
|
$ ./qemu-system-ppc64 -M powernv -cpu POWER9 -nographic -bios build/firmware.bin
|