Re: [PATCH] arch: m68k: include: asm: define 'VM_DATA_DEFAULT_FLAGS' no matter whether has 'NOMMU' or not.

Geert Uytterhoeven
2013-06-29T08:26:07Z

On Sat, Jun 29, 2013 at 10:01 AM, Michael Schmitz <schmitzmic@gmail.com> wrote:
>> The same .config file, also report the compiling error below:
>>
>> drivers/i2c/busses/i2c-ocores.c:81:2: error: implicit declaration of
>> function ‘iowrite8’ [-Werror=implicit-function-declaration]
>> drivers/i2c/busses/i2c-ocores.c:86:2: error: implicit declaration of
>> function ‘iowrite16’ [-Werror=implicit-function-declaration]
>> drivers/i2c/busses/i2c-ocores.c:91:2: error: implicit declaration of
>> function ‘iowrite32’ [-Werror=implicit-function-declaration]
>> drivers/i2c/busses/i2c-ocores.c:96:2: error: implicit declaration of
>> function ‘ioread8’ [-Werror=implicit-function-declaration]
>> drivers/i2c/busses/i2c-ocores.c:101:2: error: implicit declaration of
>> function ‘ioread16’ [-Werror=implicit-function-declaration]
>> drivers/i2c/busses/i2c-ocores.c:106:2: error: implicit declaration of
>> function ‘ioread32’ [-Werror=implicit-function-declaration]
>>
>> Excuse me, I am not quite familiar with the related hardware and m68k,
>> I guess under m68k architecture, we need not this drivers, is it correct ?

Until someone synthesizes the OpenCores i2c core together with the
OpenCores 68000 core (they seem to have one), and tries to run uClinux
on it...

> That would be correct, yes. Perhaps add appropriate dependencies in
> drivers/i2c/Kconfig to allow building I2C drivers
> only on hardware that supports it?

We still want it for compile-coverage.

Now, the issue is that m68knommu doesn't implement ioread8() and
friends, so I'm adding the uClinux list.

Gr{oetje,eeting}s,

Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds