Re: [RFC PATCH] m68k: nommu: Fix behaviour of io macros on non-CF

Daniel Palmer <[email protected]> Tue, 14 Apr 2026 21:55:40 +0900

Newsgroups	org.kernel.vger.linux-m68k,org.kernel.vger.linux-kernel
Message-ID	<CAFr9PXnfh6p_ajGSGX-MnKgToEdAW-3rPgOLKgaDXziKXNGfFQ@mail.gmail.com>

Hi Greg,

On Tue, 14 Apr 2026 at 21:18, Greg Ungerer <[email protected]> wrote:
> This change, in this form at least, breaks most of the non-MMU ColdFire targets.
> Try compiling any of m5208evb, m5249evb, m5272c3, m5275evb, m5307c3 or
> m5407c3 defconfigs and you get build failures. Targets that do not have
> a PCI bus and so do not define IOMEMBASE will fail, which is most of them.

Oof, that's the second time I broke coldfire this week (I broke it
trying to make virtio work for m68k in u-boot too).
Your patch works for my mc68000 virt and dragonball builds. I will
build/boot test nommu CF in QEMU.

Thanks,

Daniel