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ARM: OMAP2+: Limit omap initcalls to omap only on multiplatform kernels

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We need to make sure that multiplatform kernels don't
run omap initcalls when booted on other SoCs.

Do this by adding wrapper macros for the initcalls that
return early if soc_is_omap() test fails. This allows
us to easily change the defines later if we have SoC
specific init sections available.

Tested-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Tony Lindgren 2013-01-11 11:24:18 -08:00
parent 9931faca02
commit 816a65ef4c
1 changed files with 29 additions and 0 deletions
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29
arch/arm/mach-omap2/soc.h
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@ -42,6 +42,9 @@
#undef MULTI_OMAP2
#undef OMAP_NAME
#ifdef CONFIG_ARCH_MULTIPLATFORM
#define MULTI_OMAP2
#endif
#ifdef CONFIG_SOC_OMAP2420
# ifdef OMAP_NAME
# undef MULTI_OMAP2
@ -112,6 +115,11 @@ int omap_type(void);
*/
unsigned int omap_rev(void);
static inline int soc_is_omap(void)
{
return omap_rev() != 0;
}
/*
* Get the CPU revision for OMAP devices
*/
@ -465,5 +473,26 @@ static inline unsigned int omap4_has_ ##feat(void) \
OMAP4_HAS_FEATURE(perf_silicon, PERF_SILICON)
/*
* We need to make sure omap initcalls don't run when
* multiplatform kernels are booted on other SoCs.
*/
#define omap_initcall(level, fn) \
static int __init __used __##fn(void) \
{ \
if (!soc_is_omap()) \
return 0; \
return fn(); \
} \
level(__##fn);
#define omap_early_initcall(fn) omap_initcall(early_initcall, fn)
#define omap_core_initcall(fn) omap_initcall(core_initcall, fn)
#define omap_postcore_initcall(fn) omap_initcall(postcore_initcall, fn)
#define omap_arch_initcall(fn) omap_initcall(arch_initcall, fn)
#define omap_subsys_initcall(fn) omap_initcall(subsys_initcall, fn)
#define omap_device_initcall(fn) omap_initcall(device_initcall, fn)
#define omap_late_initcall(fn) omap_initcall(late_initcall, fn)
#endif /* __ASSEMBLY__ */