ROUND_DOWN
omap_sram_start = ROUND_DOWN(omap_sram_start, PAGE_SIZE);
new_ceil = ROUND_DOWN(new_ceil, FNCPY_ALIGN);
omap_sram_start = ROUND_DOWN(omap_sram_start, PAGE_SIZE);
new_ceil = ROUND_DOWN(new_ceil, FNCPY_ALIGN);