59  * used if it yields a valid address, unless the "linux,usable-memory-range"
68 	const fdt32_t *usable, *reg, *endp;  in fdt_check_mem_start()  local
86 	 * Usable memory in case of a crash dump kernel  in fdt_check_mem_start()
90 	usable = get_prop(fdt, "/chosen", "linux,usable-memory-range",  in fdt_check_mem_start()
92 	if (usable) {  in fdt_check_mem_start()
93 		size = get_val(usable + addr_cells, size_cells);  in fdt_check_mem_start()
97 		if (addr_cells > 1 && fdt32_ld(usable)) {  in fdt_check_mem_start()
102 		usable_base = fdt32_ld(usable + addr_cells - 1);  in fdt_check_mem_start()
113 		reg = fdt_getprop(fdt, offset, "linux,usable-memory", &len);  in fdt_check_mem_start()
133 			if (usable) {  in fdt_check_mem_start()
135 				 * Clip to usable range, which takes precedence  in fdt_check_mem_start()
157 		/* No usable memory found, falling back to default */  in fdt_check_mem_start()
162 	 * The calculated address is not usable, or was overridden by the  in fdt_check_mem_start()
163 	 * "linux,usable-memory-range" property.  in fdt_check_mem_start()
164 	 * Use the lowest usable physical memory address from the DTB instead,  in fdt_check_mem_start()