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Enables cache early in boot-up sequence

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This commit is contained in:
Gregory Nutt 2014-07-26 18:48:00 -06:00
parent 4e146d2ec2
commit ee59870325
1 changed files with 7 additions and 2 deletions
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9
arch/arm/src/sama5/sam_boot.c
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@ -41,6 +41,7 @@
#include <stdint.h>
#include <assert.h>
#include <debug.h>
#ifdef CONFIG_PAGING
# include <nuttx/page.h>
@ -567,7 +568,7 @@ static void sam_copyvectorblock(void)
#else
/* Flush the DCache to assure that the vector data is in physical in ISRAM */
cp15_clean_dcache((uintptr_t)SAM_VECTOR_VSRAM,
arch_clean_dcache((uintptr_t)SAM_VECTOR_VSRAM,
(uintptr_t)SAM_VECTOR_VSRAM + sam_vectorsize());
#endif
}
@ -702,6 +703,10 @@ void up_boot(void)
#endif /* CONFIG_ARCH_ROMPGTABLE */
/* Enable the L2 cache */
DEBUGVERIFY(l2cc_initialize());
#ifdef CONFIG_ARCH_RAMFUNCS
/* Copy any necessary code sections from FLASH to RAM. The correct
* destination in SRAM is given by _sramfuncs and _eramfuncs. The
@ -718,7 +723,7 @@ void up_boot(void)
* be available when fetched into the I-Cache.
*/
cp15_clean_dcache((uintptr_t)&_sramfuncs, (uintptr_t)&_eramfuncs)
arch_clean_dcache((uintptr_t)&_sramfuncs, (uintptr_t)&_eramfuncs)
#endif
/* Setup up vector block. _vector_start and _vector_end are exported from