xref: /openbmc/u-boot/arch/arm/lib/bootm-fdt.c (revision e08539b7)
1 /*
2  * Copyright (c) 2013, Google Inc.
3  *
4  * Copyright (C) 2011
5  * Corscience GmbH & Co. KG - Simon Schwarz <schwarz@corscience.de>
6  *  - Added prep subcommand support
7  *  - Reorganized source - modeled after powerpc version
8  *
9  * (C) Copyright 2002
10  * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
11  * Marius Groeger <mgroeger@sysgo.de>
12  *
13  * Copyright (C) 2001  Erik Mouw (J.A.K.Mouw@its.tudelft.nl)
14  *
15  * SPDX-License-Identifier:	GPL-2.0+
16  */
17 
18 #include <common.h>
19 #include <fdt_support.h>
20 #ifdef CONFIG_ARMV7_NONSEC
21 #include <asm/armv7.h>
22 #endif
23 #include <asm/psci.h>
24 
25 DECLARE_GLOBAL_DATA_PTR;
26 
27 int arch_fixup_fdt(void *blob)
28 {
29 	bd_t *bd = gd->bd;
30 	int bank, ret;
31 	u64 start[CONFIG_NR_DRAM_BANKS];
32 	u64 size[CONFIG_NR_DRAM_BANKS];
33 
34 	for (bank = 0; bank < CONFIG_NR_DRAM_BANKS; bank++) {
35 		start[bank] = bd->bi_dram[bank].start;
36 		size[bank] = bd->bi_dram[bank].size;
37 #ifdef CONFIG_ARMV7_NONSEC
38 		ret = armv7_apply_memory_carveout(&start[bank], &size[bank]);
39 		if (ret)
40 			return ret;
41 #endif
42 	}
43 
44 	ret = fdt_fixup_memory_banks(blob, start, size, CONFIG_NR_DRAM_BANKS);
45 #ifdef CONFIG_ARMV7_NONSEC
46 	if (ret)
47 		return ret;
48 
49 	ret = psci_update_dt(blob);
50 #endif
51 	return ret;
52 }
53