SECTION_MASK
map.pfn = __phys_to_pfn(__atags_pointer & SECTION_MASK);
map.pfn = __phys_to_pfn(CONFIG_XIP_PHYS_ADDR & SECTION_MASK);
map.length = ((unsigned long)_exiprom - map.virtual + ~SECTION_MASK) & SECTION_MASK;
kernel_sec_start = CONFIG_PHYS_OFFSET & SECTION_MASK;
((addr | next | phys) & ~SECTION_MASK) == 0) {
if (type->prot_l1 == 0 && ((addr | phys | length) & ~SECTION_MASK)) {