1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * board/renesas/rcar-common/common.c
4  *
5  * Copyright (C) 2013 Renesas Electronics Corporation
6  * Copyright (C) 2013 Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
7  * Copyright (C) 2015 Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
8  */
9 
10 #include <common.h>
11 #include <dm.h>
12 #include <init.h>
13 #include <asm/global_data.h>
14 #include <dm/uclass-internal.h>
15 #include <asm/arch/rmobile.h>
16 #include <linux/libfdt.h>
17 
18 #ifdef CONFIG_RCAR_GEN3
19 
20 DECLARE_GLOBAL_DATA_PTR;
21 
22 /* If the firmware passed a device tree use it for U-Boot DRAM setup. */
23 extern u64 rcar_atf_boot_args[];
24 
fdtdec_board_setup(const void * fdt_blob)25 int fdtdec_board_setup(const void *fdt_blob)
26 {
27 	void *atf_fdt_blob = (void *)(rcar_atf_boot_args[1]);
28 
29 	if (fdt_magic(atf_fdt_blob) == FDT_MAGIC)
30 		fdt_overlay_apply_node((void *)fdt_blob, 0, atf_fdt_blob, 0);
31 
32 	return 0;
33 }
34 
dram_init(void)35 int dram_init(void)
36 {
37 	return fdtdec_setup_mem_size_base();
38 }
39 
dram_init_banksize(void)40 int dram_init_banksize(void)
41 {
42 	fdtdec_setup_memory_banksize();
43 
44 	return 0;
45 }
46 #endif
47