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 #include <bidram.h>
26
27 DECLARE_GLOBAL_DATA_PTR;
28
29 #ifdef CONFIG_FMAN_ENET
fdt_update_ethernet_dt(void * blob)30 __weak int fdt_update_ethernet_dt(void *blob)
31 {
32 return 0;
33 }
34 #endif
35
board_fdt_fixup(void * blob)36 __weak int board_fdt_fixup(void *blob)
37 {
38 return 0;
39 }
40
arch_fixup_fdt(void * blob)41 int arch_fixup_fdt(void *blob)
42 {
43 int ret = 0;
44
45 ret = board_fdt_fixup(blob);
46 if (ret)
47 return ret;
48
49 /* Show "/reserved-memory" */
50 boot_mem_rsv_regions(NULL, blob);
51
52 #if defined(CONFIG_ARMV7_NONSEC) || defined(CONFIG_OF_LIBFDT)
53 bd_t *bd = gd->bd;
54 int bank;
55 u64 start[CONFIG_NR_DRAM_BANKS];
56 u64 size[CONFIG_NR_DRAM_BANKS];
57
58 #ifdef CONFIG_BIDRAM
59 bidram_fixup();
60 #endif
61 for (bank = 0; bank < CONFIG_NR_DRAM_BANKS; bank++) {
62 start[bank] = bd->bi_dram[bank].start;
63 size[bank] = bd->bi_dram[bank].size;
64 if (size[bank] == 0)
65 continue;
66 #ifdef CONFIG_ARCH_FIXUP_FDT_MEMORY
67 printf("Adding bank: 0x%08llx - 0x%08llx (size: 0x%08llx)\n",
68 start[bank], start[bank] + size[bank], size[bank]);
69 #endif
70 #ifdef CONFIG_ARMV7_NONSEC
71 ret = armv7_apply_memory_carveout(&start[bank], &size[bank]);
72 if (ret)
73 return ret;
74 #endif
75 }
76
77 #ifdef CONFIG_OF_LIBFDT
78 ret = fdt_fixup_memory_banks(blob, start, size, CONFIG_NR_DRAM_BANKS);
79 if (ret)
80 return ret;
81 #endif
82
83 #ifdef CONFIG_ARMV8_SPIN_TABLE
84 ret = spin_table_update_dt(blob);
85 if (ret)
86 return ret;
87 #endif
88
89 #if defined(CONFIG_ARMV7_NONSEC) || defined(CONFIG_ARMV8_PSCI) || \
90 defined(CONFIG_SEC_FIRMWARE_ARMV8_PSCI)
91 ret = psci_update_dt(blob);
92 if (ret)
93 return ret;
94 #endif
95 #endif
96
97 #ifdef CONFIG_FMAN_ENET
98 ret = fdt_update_ethernet_dt(blob);
99 if (ret)
100 return ret;
101 #endif
102 return 0;
103 }
104