Subject: [PATCH] ARM: omap: make am43xx build with SMP enabled

From: [email-masked] (Tony Lindgren)
Date: Mon, 24 Jun 2013 00:17:42 -0700

* Arnd Bergmann <[email-masked]> [130621 16:28]:
> With am43xx enabled, omap4 and omap5 disabled and SMP on, I get these
> build errors:
> 
> arch/arm/mach-omap2/built-in.o: In function `scu_gp_set':
> :(.text+0x7858): undefined reference to `omap4_get_scu_base'
> arch/arm/mach-omap2/built-in.o: In function `scu_gp_clear':
> :(.text+0x793c): undefined reference to `omap4_get_scu_base'
> arch/arm/mach-omap2/built-in.o: In function `omap4_cpu_die':
> :(.ref.text+0x44): undefined reference to `omap4_hotplug_cpu'
> 
> The easiest way to work around that is to turn on the missing
> functions, even though we know they won't be used on am43xx,
> which is single-CPU.
> 
> Signed-off-by: Arnd Bergmann <[email-masked]>
> Cc: Ankur Kishore <[email-masked]>
> Cc: Afzal Mohammed <[email-masked]>
> Cc: Tony Lindgren <[email-masked]>

Looks OK to me:

Acked-by: Tony Lindgren <[email-masked]>
 
> diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
> index f5038f5..46d7c5f 100644
> --- a/arch/arm/mach-omap2/Makefile
> +++ b/arch/arm/mach-omap2/Makefile
> @@ -39,7 +39,7 @@ omap-4-5-common				=  omap4-common.o omap-wakeupgen.o \
>  					   sleep44xx.o
>  obj-$(CONFIG_ARCH_OMAP4)		+= $(omap-4-5-common) $(smp-y)
>  obj-$(CONFIG_SOC_OMAP5)			+= $(omap-4-5-common) $(smp-y)
> -obj-$(CONFIG_SOC_AM43XX)		+= $(omap-4-5-common)
> +obj-$(CONFIG_SOC_AM43XX)		+= $(omap-4-5-common) $(smp-y)
>  
>  plus_sec := $(call as-instr,.arch_extension sec,+sec)
>  AFLAGS_omap-headsmp.o			:=-Wa,-march=armv7-a$(plus_sec)
> @@ -89,6 +89,7 @@ obj-$(CONFIG_ARCH_OMAP2)		+= sleep24xx.o
>  obj-$(CONFIG_ARCH_OMAP3)		+= pm34xx.o sleep34xx.o
>  obj-$(CONFIG_ARCH_OMAP4)		+= pm44xx.o omap-mpuss-lowpower.o
>  obj-$(CONFIG_SOC_OMAP5)			+= omap-mpuss-lowpower.o
> +obj-$(CONFIG_SOC_AM43XX)		+= omap-mpuss-lowpower.o
>  obj-$(CONFIG_PM_DEBUG)			+= pm-debug.o
>  
>  obj-$(CONFIG_POWER_AVS_OMAP)		+= sr_device.o