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Add a simple version of memalign() 

This is used when the full malloc() is not available.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2015-05-12 14:55:06 -06:00
parent e9fc058314
commit b6bfb6ff9a
1 changed files with 14 additions and 0 deletions
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14
common/malloc_simple.c
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@ -26,6 +26,20 @@ void *malloc_simple(size_t bytes)
return ptr; return ptr;
} }
void *memalign_simple(size_t align, size_t bytes)
{
ulong addr, new_ptr;
void *ptr;
addr = ALIGN(gd->malloc_base + gd->malloc_ptr, bytes);
new_ptr = addr + bytes;
if (new_ptr > gd->malloc_limit)
return NULL;
ptr = map_sysmem(addr, bytes);
gd->malloc_ptr = ALIGN(new_ptr, sizeof(new_ptr));
return ptr;
}
#ifdef CONFIG_SYS_MALLOC_SIMPLE #ifdef CONFIG_SYS_MALLOC_SIMPLE
void *calloc(size_t nmemb, size_t elem_size) void *calloc(size_t nmemb, size_t elem_size)
{ {