1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * Copyright (c) 2013, Google Inc. 4 * 5 * Copyright (C) 2011 6 * Corscience GmbH & Co. KG - Simon Schwarz <schwarz@corscience.de> 7 * - Added prep subcommand support 8 * - Reorganized source - modeled after powerpc version 9 * 10 * (C) Copyright 2002 11 * Sysgo Real-Time Solutions, GmbH <www.elinos.com> 12 * Marius Groeger <mgroeger@sysgo.de> 13 * 14 * Copyright (C) 2001 Erik Mouw (J.A.K.Mouw@its.tudelft.nl) 15 */ 16 17 #include <common.h> 18 #include <fdt_support.h> 19 #ifdef CONFIG_ARMV7_NONSEC 20 #include <asm/armv7.h> 21 #endif 22 #include <asm/psci.h> 23 #include <asm/spin_table.h> 24 25 DECLARE_GLOBAL_DATA_PTR; 26 27 #ifdef CONFIG_FMAN_ENET 28 __weak int fdt_update_ethernet_dt(void *blob) 29 { 30 return 0; 31 } 32 #endif 33 34 int arch_fixup_fdt(void *blob) 35 { 36 __maybe_unused int ret = 0; 37 #if defined(CONFIG_ARMV7_NONSEC) || defined(CONFIG_OF_LIBFDT) 38 bd_t *bd = gd->bd; 39 int bank; 40 u64 start[CONFIG_NR_DRAM_BANKS]; 41 u64 size[CONFIG_NR_DRAM_BANKS]; 42 43 for (bank = 0; bank < CONFIG_NR_DRAM_BANKS; bank++) { 44 start[bank] = bd->bi_dram[bank].start; 45 size[bank] = bd->bi_dram[bank].size; 46 #ifdef CONFIG_ARMV7_NONSEC 47 ret = armv7_apply_memory_carveout(&start[bank], &size[bank]); 48 if (ret) 49 return ret; 50 #endif 51 } 52 53 #ifdef CONFIG_OF_LIBFDT 54 ret = fdt_fixup_memory_banks(blob, start, size, CONFIG_NR_DRAM_BANKS); 55 if (ret) 56 return ret; 57 #endif 58 59 #ifdef CONFIG_ARMV8_SPIN_TABLE 60 ret = spin_table_update_dt(blob); 61 if (ret) 62 return ret; 63 #endif 64 65 #if defined(CONFIG_ARMV7_NONSEC) || defined(CONFIG_ARMV8_PSCI) || \ 66 defined(CONFIG_SEC_FIRMWARE_ARMV8_PSCI) 67 ret = psci_update_dt(blob); 68 if (ret) 69 return ret; 70 #endif 71 #endif 72 73 #ifdef CONFIG_FMAN_ENET 74 ret = fdt_update_ethernet_dt(blob); 75 if (ret) 76 return ret; 77 #endif 78 return 0; 79 } 80