Re: [PATCH 4/9] ARM: add CONFIG_PHYS_OFFSET default values

From	Arnd Bergmann <arnd@arndb.de>
Newsgroups	linux.kernel
Subject	Re: [PATCH 4/9] ARM: add CONFIG_PHYS_OFFSET default values
Date	2016-02-19 17:30 +0100
Message-ID	<r3W6m-7OW-13@gated-at.bofh.it> (permalink)
References	<r3xrj-6Oj-3@gated-at.bofh.it> <r3OLx-2j4-19@gated-at.bofh.it> <r3VWH-7Ih-43@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On Friday 19 February 2016 11:10:22 Nicolas Pitre wrote:
> On Fri, 19 Feb 2016, Arnd Bergmann wrote:
> 
> > On Thursday 18 February 2016 11:02:33 Nicolas Pitre wrote:
> > > 
> > > Acked-by: Nicolas Pitre <nico@linaro.org>
> > > 
> > > Is there a way to provide a default for defaults?
...
> > and then select one of the bool symbols from each platform.
> > Would that address your question?
> 
> Yes, but the ugliness factor isn't worth it IMHO.
> 
> I was wondering if something like this was possible:
> 
> config PHYS_OFFSET
>         hex "Physical address of main memory" if MMU
>         default DRAM_BASE if !MMU
>         default 0x10000000 if FOO
>         default 0x20000000 if BAR
>         default 0x30000000 if BAZ
>         default 0x00000000
> 

Ah, that was my previous approach, but Russell didn't like
how it makes it easier to fall back to an incorrect address
instead of forcing a build error when the address is not
configured.

	Arnd

Thread

[PATCH 4/9] ARM: add CONFIG_PHYS_OFFSET default values Arnd Bergmann <arnd@arndb.de> - 2016-02-18 15:10 +0100
  Re: [PATCH 4/9] ARM: add CONFIG_PHYS_OFFSET default values Nicolas Pitre <nicolas.pitre@linaro.org> - 2016-02-18 17:10 +0100
    Re: [PATCH 4/9] ARM: add CONFIG_PHYS_OFFSET default values Arnd Bergmann <arnd@arndb.de> - 2016-02-19 09:40 +0100
      RE: [PATCH 4/9] ARM: add CONFIG_PHYS_OFFSET default values Chris Brandt <Chris.Brandt@renesas.com> - 2016-02-19 15:30 +0100
        Re: [PATCH 4/9] ARM: add CONFIG_PHYS_OFFSET default values Arnd Bergmann <arnd@arndb.de> - 2016-02-19 16:40 +0100
          Re: [PATCH 4/9] ARM: add CONFIG_PHYS_OFFSET default values Russell King - ARM Linux <linux@arm.linux.org.uk> - 2016-02-19 17:50 +0100
            RE: [PATCH 4/9] ARM: add CONFIG_PHYS_OFFSET default values Chris Brandt <Chris.Brandt@renesas.com> - 2016-02-19 18:20 +0100
            Re: [PATCH 4/9] ARM: add CONFIG_PHYS_OFFSET default values Nicolas Pitre <nicolas.pitre@linaro.org> - 2016-02-19 19:00 +0100
      Re: [PATCH 4/9] ARM: add CONFIG_PHYS_OFFSET default values Nicolas Pitre <nicolas.pitre@linaro.org> - 2016-02-19 17:20 +0100
        Re: [PATCH 4/9] ARM: add CONFIG_PHYS_OFFSET default values Arnd Bergmann <arnd@arndb.de> - 2016-02-19 17:30 +0100
          Re: [PATCH 4/9] ARM: add CONFIG_PHYS_OFFSET default values Nicolas Pitre <nicolas.pitre@linaro.org> - 2016-02-19 18:40 +0100
            Re: [PATCH 4/9] ARM: add CONFIG_PHYS_OFFSET default values Russell King - ARM Linux <linux@arm.linux.org.uk> - 2016-02-19 19:10 +0100
              Re: [PATCH 4/9] ARM: add CONFIG_PHYS_OFFSET default values Arnd Bergmann <arnd@arndb.de> - 2016-02-19 22:20 +0100

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