On Mon, Jan 30, 2023 at 08:10:36PM +0100, Geert Uytterhoeven wrote:
Hi Eero, On Mon, Jan 30, 2023 at 8:02 PM Eero Tamminen <oak@xxxxxxxxxxxxxx> wrote:On 30.1.2023 18.34, Tom Rini wrote:That's great to hear. While I started my life on m68k machines, I never did get Linux up on one. Do the coldfire platforms you have run U-Boot today? If so, are they already supported upstream? One of my biggest concerns about the architecture, in U-Boot, is that I've just not heard of anyone using it in quite some time, and we don't have any emulated platforms either (can it be done in QEMU? We have other plaforms in CI via QEMU) so I worry it's not working.Qemu supports both m68k and ColdFire nowadays: https://www.qemu.org/docs/master/system/target-m68k.html - Eero PS. For m68k there are also a lot of other emulators that emulate specific platforms. Aranym, 68040 Atari "clone", used a lot by Debian m68k port before Qemu got m68k support. WinAUE, 68000-68040 Amiga emulation. Unlike Aranym or Qemu, this emulates also CPU cache. Hatari, 68000-68040 Atari emulation (based on WinUAE CPU core). Previous, 68030 NeXT emulator (based on Hatari).But none of the platforms listed above boot using U-Boot, which is what Tom is interested in... "qemu-system-m68k -machine help" lists a.o.: an5206 Arnewsh 5206 mcf5208evb MCF5208EVB (default) U-Boot still contains include/configs/M5208EVBE.h, but there are no actual users... Angelo: so support for amcore in qemu would be nice ;-)
I did a little searching after sending and I see there's been some patches for mcf5208evb and U-Boot, in QEMU but the last message (2019) was that the CPU emulation wasn't quite complete enough. But yes, one way or another, it would be really great to get a virtualized platform in CI to prevent future breakage. -- Tom
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