RE: [PATCH 01/10] OMAP2+: Kconfig: disallow builds for boards that don't use the currently-selected SoC

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> -----Original Message-----
> From: linux-omap-owner@xxxxxxxxxxxxxxx 
> [mailto:linux-omap-owner@xxxxxxxxxxxxxxx] On Behalf Of Paul Walmsley
> Sent: Saturday, October 02, 2010 3:05 AM
> To: linux-omap@xxxxxxxxxxxxxxx; linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
> Cc: Tony Lindgren
> Subject: [PATCH 01/10] OMAP2+: Kconfig: disallow builds for 
> boards that don't use the currently-selected SoC
> 
> Currently, if, for example, CONFIG_ARCH_OMAP2420 is not 
> selected, OMAP2420
> board files can still be included in the build.  This results 
> in link errors:
> 
> arch/arm/mach-omap2/built-in.o: In function `omap_generic_map_io':
> .../arch/arm/mach-omap2/board-generic.c:51: undefined 
> reference to `omap2_set_globals_242x'
> arch/arm/mach-omap2/built-in.o: In function `omap_h4_init':
> .../arch/arm/mach-omap2/board-h4.c:330: undefined reference 
> to `omap2420_mux_init'
> arch/arm/mach-omap2/built-in.o: In function `omap_h4_map_io':
> .../arch/arm/mach-omap2/board-h4.c:373: undefined reference 
> to `omap2_set_globals_242x'
> arch/arm/mach-omap2/built-in.o: In function `omap_apollon_init':
> .../arch/arm/mach-omap2/board-apollon.c:325: undefined 
> reference to `omap2420_mux_init'
> arch/arm/mach-omap2/built-in.o: In function `omap_apollon_map_io':
> .../arch/arm/mach-omap2/board-apollon.c:353: undefined 
> reference to `omap2_set_globals_242x'
> make: *** [.tmp_vmlinux1] Error 1
> 
> Fix this by making the boards depend on the Kconfig option for the
> specific SoC that they use.
> 
> Also, while here, fix the mach-omap2/board-generic.c file to 
> remove the
> dependency on OMAP2420.
> 
> Signed-off-by: Paul Walmsley <paul@xxxxxxxxx>
> Cc: Tony Lindgren <tony@xxxxxxxxxxx>
> ---
>  arch/arm/mach-omap2/Kconfig         |    6 +++---
>  arch/arm/mach-omap2/board-generic.c |   16 ++++++++++++++--
>  2 files changed, 17 insertions(+), 5 deletions(-)
> 
> diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
> index 1c4b237..7f740bd 100644
> --- a/arch/arm/mach-omap2/Kconfig
> +++ b/arch/arm/mach-omap2/Kconfig
> @@ -101,20 +101,20 @@ config MACH_OMAP2_TUSB6010
>  
>  config MACH_OMAP_H4
>  	bool "OMAP 2420 H4 board"
> -	depends on ARCH_OMAP2
> +	depends on ARCH_OMAP2420
>  	default y
>  	select OMAP_PACKAGE_ZAF
>  	select OMAP_DEBUG_DEVICES
>  
>  config MACH_OMAP_APOLLON
>  	bool "OMAP 2420 Apollon board"
> -	depends on ARCH_OMAP2
> +	depends on ARCH_OMAP2420
>  	default y
>  	select OMAP_PACKAGE_ZAC
>  
>  config MACH_OMAP_2430SDP
>  	bool "OMAP 2430 SDP board"
> -	depends on ARCH_OMAP2
> +	depends on ARCH_OMAP2430
>  	default y
>  	select OMAP_PACKAGE_ZAC
>  
> diff --git a/arch/arm/mach-omap2/board-generic.c 
> b/arch/arm/mach-omap2/board-generic.c
> index 3482b99..c7ec3f3 100644
> --- a/arch/arm/mach-omap2/board-generic.c
> +++ b/arch/arm/mach-omap2/board-generic.c
> @@ -48,10 +48,22 @@ static void __init omap_generic_init(void)
>  
>  static void __init omap_generic_map_io(void)
>  {
> -	omap2_set_globals_242x(); /* should be 242x, 243x, or 343x */
> -	omap242x_map_common_io();
> +	if (cpu_is_omap242x()) {
> +		omap2_set_globals_242x();
> +		omap242x_map_common_io();
> +	} else if (cpu_is_omap242x()) {

Is this intended for 242x() or 243x()?

> +		omap2_set_globals_243x();
> +		omap243x_map_common_io();
> +	} else if (cpu_is_omap34xx()) {
> +		omap2_set_globals_3xxx();
> +		omap34xx_map_common_io();
> +	} else if (cpu_is_omap44xx()) {
> +		omap2_set_globals_443x();
> +		omap44xx_map_common_io();
> +	}
>  }
>  
> +/* XXX This machine entry name should be updated */
>  MACHINE_START(OMAP_GENERIC, "Generic OMAP24xx")
>  	/* Maintainer: Paul Mundt <paul.mundt@xxxxxxxxx> */
>  	.phys_io	= 0x48000000,
> 
> 
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