Re: [uClinux-dev] [PATCH] m68k: reorganize Kconfig options to improve mmu/non-mmu selections

[Greg Ungerer <gerg@snapgear.com>]

Hi Geert,

On 13/08/11 19:46, Geert Uytterhoeven wrote:
> On Thu, Aug 11, 2011 at 08:43, Greg Ungerer<gerg@snapgear.com>  wrote:
>> On 11/08/11 16:15, Sam Ravnborg wrote:
>>> On Thu, Aug 11, 2011 at 03:10:21PM +1000, gerg@snapgear.com wrote:
>>>> diff --git a/arch/m68k/Kconfig.bus b/arch/m68k/Kconfig.bus
>>>> new file mode 100644
>>>> index 0000000..83263ec
>>>> --- /dev/null
>>>> +++ b/arch/m68k/Kconfig.bus
>>>> @@ -0,0 +1,98 @@
>>>> +if MMU
>>>> +
>>>> +comment "Bus Support"
>>>> +
>>>> +config EISA
>>>> + á á á bool
>>>> + á á á help
>>>> + á á á á The Extended Industry Standard Architecture (EISA) bus was
>>>> + á á á á developed as an open alternative to the IBM MicroChannel bus.
>>>> +
>>>> + á á á á The EISA bus provided some of the features of the IBM
>>>> MicroChannel
>>>> + á á á á bus while maintaining backward compatibility with cards made
>>>> for
>>>> + á á á á the older ISA bus. áThe EISA bus saw limited use between 1988
>>>> and
>>>> + á á á á 1995 when it was made obsolete by the PCI bus.
>>>> +
>>>> + á á á á Say Y here if you are building a kernel for an EISA-based
>>>> machine.
>>>> +
>>>> + á á á á Otherwise, say N.
>>>> +
>>>> +config MCA
>>>> + á á á bool
>>>> + á á á help
>>>> + á á á á MicroChannel Architecture is found in some IBM PS/2 machines
>>>> and
>>>> + á á á á laptops. áIt is a bus system similar to PCI or ISA. See
>>>> + á á á<file:Documentation/mca.txt>  á(and especially the web page given
>>>> + á á á á there) before attempting to build an MCA bus kernel.
>>>> +
>>>> +config PCMCIA
>>>> + á á á tristate
>>>> + á á á help
>>>> + á á á á Say Y here if you want to attach PCMCIA- or PC-cards to your
>>>> Linux
>>>> + á á á á computer. áThese are credit-card size devices such as network
>>>> cards,
>>>> + á á á á modems or hard drives often used with laptops computers. áThere
>>>> are
>>>> + á á á á actually two varieties of these cards: the older 16 bit PCMCIA
>>>> cards
>>>> + á á á á and the newer 32 bit CardBus cards. áIf you want to use CardBus
>>>> + á á á á cards, you need to say Y here and also to "CardBus support"
>>>> below.
>>>> +
>>>> + á á á á To use your PC-cards, you will need supporting software from
>>>> David
>>>> + á á á á Hinds' pcmcia-cs package (see the
>>>> file<file:Documentation/Changes>
>>>> + á á á á for location). áPlease also read the PCMCIA-HOWTO, available
>>>> from
>>>> + á á á<http://www.tldp.org/docs.html#howto>.
>>>> +
>>>> + á á á á To compile this driver as modules, choose M here: the
>>>> + á á á á modules will be called pcmcia_core and ds.
>>>> +
>>>> +config NUBUS
>>>> + á á á bool
>>>> + á á á depends on MAC
>>>> + á á á default y
>>>
>>> Do you really need EISA, MCA and PCMIA? They have no promt thus cannot be
>>> selected by the user.
>>
>> Yes, your right, they don't look like than can be selected at all.
>> None of the default configs seem to reference them either.
>> Geert: do you know why these options might still be around?
>
> Just legacy. There was a time they needed to be there. Let them go!

Cool. I will remove them!

Regards
Greg


------------------------------------------------------------------------
Greg Ungerer  --  Principal Engineer        EMAIL:     gerg@snapgear.com
SnapGear Group, McAfee                      PHONE:       +61 7 3435 2888
8 Gardner Close                             FAX:         +61 7 3217 5323
Milton, QLD, 4064, Australia                WEB: http://www.SnapGear.com