1 /* SPDX-License-Identifier: GPL-2.0+ */
2 /*
3  * Copyright (c) 2024, Linaro Limited
4  */
5 
6 /**
7  * get_mem_top() - Compute the value of ram_top
8  * @ram_start:	Start of RAM
9  * @ram_size:	RAM size
10  * @size:	Minimum RAM size requested
11  * @fdt:	FDT blob
12  *
13  * The function computes the top address of RAM memory that can be
14  * used by U-Boot. This is being done by going through the list of
15  * reserved memory regions specified in the devicetree blob passed
16  * to the function. The logic used here is derived from the lmb
17  * allocation function.
18  *
19  * Return: address of ram top on success, 0 on failure
20  */
21 phys_addr_t get_mem_top(phys_addr_t ram_start, phys_size_t ram_size,
22 			phys_size_t size, void *fdt);
23