From b6bfb6ff9a2173d5e0e5506b95631aa49396c468 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Tue, 12 May 2015 14:55:06 -0600 Subject: [PATCH] Add a simple version of memalign() This is used when the full malloc() is not available. Signed-off-by: Simon Glass --- common/malloc_simple.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/common/malloc_simple.c b/common/malloc_simple.c index d445199c58..9811ab60f6 100644 --- a/common/malloc_simple.c +++ b/common/malloc_simple.c @@ -26,6 +26,20 @@ void *malloc_simple(size_t bytes) 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 void *calloc(size_t nmemb, size_t elem_size) {