xref: /openbmc/u-boot/arch/arm/lib/bootm-fdt.c (revision 203e94f6)
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 #include <asm/spin_table.h>
25 
26 DECLARE_GLOBAL_DATA_PTR;
27 
28 int arch_fixup_fdt(void *blob)
29 {
30 	int ret = 0;
31 #if defined(CONFIG_ARMV7_NONSEC) || defined(CONFIG_OF_LIBFDT)
32 	bd_t *bd = gd->bd;
33 	int bank;
34 	u64 start[CONFIG_NR_DRAM_BANKS];
35 	u64 size[CONFIG_NR_DRAM_BANKS];
36 
37 	for (bank = 0; bank < CONFIG_NR_DRAM_BANKS; bank++) {
38 		start[bank] = bd->bi_dram[bank].start;
39 		size[bank] = bd->bi_dram[bank].size;
40 #ifdef CONFIG_ARMV7_NONSEC
41 		ret = armv7_apply_memory_carveout(&start[bank], &size[bank]);
42 		if (ret)
43 			return ret;
44 #endif
45 	}
46 
47 #ifdef CONFIG_OF_LIBFDT
48 	ret = fdt_fixup_memory_banks(blob, start, size, CONFIG_NR_DRAM_BANKS);
49 	if (ret)
50 		return ret;
51 #endif
52 
53 #ifdef CONFIG_ARMV8_SPIN_TABLE
54 	ret = spin_table_update_dt(blob);
55 	if (ret)
56 		return ret;
57 #endif
58 
59 #if defined(CONFIG_ARMV7_NONSEC) || defined(CONFIG_ARMV8_PSCI) || \
60 	defined(CONFIG_SEC_FIRMWARE_ARMV8_PSCI)
61 	ret = psci_update_dt(blob);
62 	if (ret)
63 		return ret;
64 #endif
65 #endif
66 
67 	return 0;
68 }
69