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ARM: v6k: introduce CPU_V6K option

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Introduce a CPU_V6K configuration option for platforms to select if they
have a V6K CPU core.  This allows us to identify whether we need to
support ARMv6 CPUs without the V6K SMP extensions at build time.

Currently CPU_V6K is just an alias for CPU_V6, and all places which
reference CPU_V6 are replaced by (CPU_V6 || CPU_V6K).

Select CPU_V6K from platforms which are known to be V6K-only.

Acked-by: Tony Lindgren <tony@atomide.com>
Tested-by: Sourav Poddar <sourav.poddar@ti.com>
Tested-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King
2011-01-17 15:08:32 +00:00
parent 000d9c78eb
commit e399b1a4e1
11 changed files with 47 additions and 31 deletions
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5
arch/arm/include/asm/cacheflush.h
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@@ -116,7 +116,7 @@
# define MULTI_CACHE 1
#endif
#if defined(CONFIG_CPU_V6)
#if defined(CONFIG_CPU_V6) || defined(CONFIG_CPU_V6K)
//# ifdef _CACHE
# define MULTI_CACHE 1
//# else
@@ -316,7 +316,8 @@ extern void copy_to_user_page(struct vm_area_struct *, struct page *,
* Optimized __flush_icache_all for the common cases. Note that UP ARMv7
* will fall through to use __flush_icache_all_generic.
*/
#if (defined(CONFIG_CPU_V7) && defined(CONFIG_CPU_V6)) || \
#if (defined(CONFIG_CPU_V7) && \
(defined(CONFIG_CPU_V6) || defined(CONFIG_CPU_V6K))) || \
defined(CONFIG_SMP_ON_UP)
#define __flush_icache_preferred __cpuc_flush_icache_all
#elif __LINUX_ARM_ARCH__ >= 7 && defined(CONFIG_SMP)