2011/8/18 Marc Kleine-Budde <[email protected]>

> On 08/18/2011 07:55 AM, Oliver Hartkopp wrote:
> > On 16.08.2011 21:45, Willy Lambert wrote:
> >
> >> Hi all,
> >>
> >> I used sja1000 on a 32bits system and I am trying to switch to a 64b
> system.
> >> It not possible to select CONFIG_SJA1000_ISA when CONFIG_ISA is not set,
> which
> >> is not available when CONFIG_X86_64 is set.
> >>
> >> As in xenomai "socket" drivers I am able to use my board, I wonder why
> this is
> >> not possible under a vanilla linux. I access my HW by iomem (the
> equivalent
> >> xenomai driver is xeno_can_mem), is there an equivalent socket can
> driver ?
> >
> >
> > Hi Willy,
> >
> > i've looked into
> >
> > http://lxr.linux.no/#linux+v3.0.3/drivers/tty/serial/8250.c
> >
> > which should have a similar problem, as these old-style serial hardware
> is
> > also using the ISA bus.
> >
> > But the serial drivers are now depending on HAS_IOMEM
> >
> > http://lxr.linux.no/#linux+v3.0.3/drivers/tty/serial/Kconfig#L4
> >
> > and they use platform calls
> >
> > http://lxr.linux.no/#linux+v3.0.3/drivers/tty/serial/8250.c#L3177
> >
> > like platform_device_alloc(), platform_device_add(),
> > platform_driver_register() and friends ...
> >
> > http://lxr.linux.no/#linux+v3.0.3/drivers/tty/serial/8250.c#L3349
> >
> > The sja1000_isa.c still uses the ISA pendants
> >
> >
> http://lxr.linux.no/#linux+v3.0.3/drivers/net/can/sja1000/sja1000_isa.c#L253
> >
> > So IMO the sja1000_isa driver 'just' needs to be converted like they did
> with
> > the serial drivers.
> >
> > @Wolfgang/Marc: Or is it better to create some platform bindings for x86
> and
> > use the 'sja1000_platform' driver??
>
> A platform driver is of course sexier :)
>
> Marc
>

Does someone know what is to do in order to make this sja1000_platform
driver in my case ?



> --
> Pengutronix e.K.                  | Marc Kleine-Budde           |
> Industrial Linux Solutions        | Phone: +49-231-2826-924     |
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> Amtsgericht Hildesheim, HRA 2686  | http://www.pengutronix.de   |
>
>
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