Tom Rini | 83d290c | 2018-05-06 17:58:06 -0400 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0+ |
Simon Schwarz | 0a672d4 | 2012-03-15 04:01:45 +0000 | [diff] [blame] | 2 | /* Copyright (C) 2011 |
| 3 | * Corscience GmbH & Co. KG - Simon Schwarz <schwarz@corscience.de> |
| 4 | * - Added prep subcommand support |
| 5 | * - Reorganized source - modeled after powerpc version |
| 6 | * |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 7 | * (C) Copyright 2002 |
| 8 | * Sysgo Real-Time Solutions, GmbH <www.elinos.com> |
| 9 | * Marius Groeger <mgroeger@sysgo.de> |
| 10 | * |
| 11 | * Copyright (C) 2001 Erik Mouw (J.A.K.Mouw@its.tudelft.nl) |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 12 | */ |
| 13 | |
| 14 | #include <common.h> |
Simon Glass | 52f2423 | 2020-05-10 11:40:00 -0600 | [diff] [blame^] | 15 | #include <bootstage.h> |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 16 | #include <command.h> |
Simon Glass | 62270f4 | 2019-11-14 12:57:35 -0700 | [diff] [blame] | 17 | #include <cpu_func.h> |
Simon Glass | 9d92245 | 2017-05-17 17:18:03 -0600 | [diff] [blame] | 18 | #include <dm.h> |
Simon Glass | db41d65 | 2019-12-28 10:45:07 -0700 | [diff] [blame] | 19 | #include <hang.h> |
Stefan Roese | 1b8220a | 2017-03-20 12:51:50 +0100 | [diff] [blame] | 20 | #include <dm/root.h> |
Simon Glass | 7b51b57 | 2019-08-01 09:46:52 -0600 | [diff] [blame] | 21 | #include <env.h> |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 22 | #include <image.h> |
Jean-Christophe PLAGNIOL-VILLARD | a31e091 | 2009-04-04 12:49:11 +0200 | [diff] [blame] | 23 | #include <u-boot/zlib.h> |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 24 | #include <asm/byteorder.h> |
Masahiro Yamada | b08c8c4 | 2018-03-05 01:20:11 +0900 | [diff] [blame] | 25 | #include <linux/libfdt.h> |
Joe Hershberger | 0eb25b6 | 2015-03-22 17:08:59 -0500 | [diff] [blame] | 26 | #include <mapmem.h> |
John Rigby | 2d1916e | 2010-10-13 13:57:36 -0600 | [diff] [blame] | 27 | #include <fdt_support.h> |
Simon Schwarz | 0a672d4 | 2012-03-15 04:01:45 +0000 | [diff] [blame] | 28 | #include <asm/bootm.h> |
Marc Zyngier | f510aea | 2014-07-12 14:24:03 +0100 | [diff] [blame] | 29 | #include <asm/secure.h> |
Pali Rohár | 89e6f13 | 2012-10-19 02:00:04 +0000 | [diff] [blame] | 30 | #include <linux/compiler.h> |
Eric Nelson | 8d196e5 | 2014-09-30 15:40:01 -0700 | [diff] [blame] | 31 | #include <bootm.h> |
| 32 | #include <vxworks.h> |
Simon Glass | 90526e9 | 2020-05-10 11:39:56 -0600 | [diff] [blame] | 33 | #include <asm/cache.h> |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 34 | |
Jan Kiszka | 104d6fb | 2015-04-21 07:18:24 +0200 | [diff] [blame] | 35 | #ifdef CONFIG_ARMV7_NONSEC |
Andre Przywara | bb97545 | 2013-09-19 18:06:43 +0200 | [diff] [blame] | 36 | #include <asm/armv7.h> |
| 37 | #endif |
Simon Glass | c45300b | 2017-05-17 08:22:59 -0600 | [diff] [blame] | 38 | #include <asm/setup.h> |
Andre Przywara | bb97545 | 2013-09-19 18:06:43 +0200 | [diff] [blame] | 39 | |
Wolfgang Denk | d87080b | 2006-03-31 18:32:53 +0200 | [diff] [blame] | 40 | DECLARE_GLOBAL_DATA_PTR; |
| 41 | |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 42 | static struct tag *params; |
John Rigby | 2d1916e | 2010-10-13 13:57:36 -0600 | [diff] [blame] | 43 | |
Simon Schwarz | 0a672d4 | 2012-03-15 04:01:45 +0000 | [diff] [blame] | 44 | static ulong get_sp(void) |
| 45 | { |
| 46 | ulong ret; |
| 47 | |
| 48 | asm("mov %0, sp" : "=r"(ret) : ); |
| 49 | return ret; |
| 50 | } |
| 51 | |
John Rigby | 2d1916e | 2010-10-13 13:57:36 -0600 | [diff] [blame] | 52 | void arch_lmb_reserve(struct lmb *lmb) |
| 53 | { |
Stephen Warren | 1575140 | 2018-01-05 13:04:54 -0700 | [diff] [blame] | 54 | ulong sp, bank_end; |
| 55 | int bank; |
John Rigby | 2d1916e | 2010-10-13 13:57:36 -0600 | [diff] [blame] | 56 | |
| 57 | /* |
| 58 | * Booting a (Linux) kernel image |
| 59 | * |
| 60 | * Allocate space for command line and board info - the |
| 61 | * address should be as high as possible within the reach of |
| 62 | * the kernel (see CONFIG_SYS_BOOTMAPSZ settings), but in unused |
| 63 | * memory, which means far enough below the current stack |
| 64 | * pointer. |
| 65 | */ |
| 66 | sp = get_sp(); |
| 67 | debug("## Current stack ends at 0x%08lx ", sp); |
| 68 | |
Rob Herring | fcfa696 | 2012-06-28 03:54:11 +0000 | [diff] [blame] | 69 | /* adjust sp by 4K to be safe */ |
| 70 | sp -= 4096; |
Stephen Warren | 1575140 | 2018-01-05 13:04:54 -0700 | [diff] [blame] | 71 | for (bank = 0; bank < CONFIG_NR_DRAM_BANKS; bank++) { |
Simon Goldschmidt | f8878da | 2019-01-14 22:38:23 +0100 | [diff] [blame] | 72 | if (!gd->bd->bi_dram[bank].size || |
| 73 | sp < gd->bd->bi_dram[bank].start) |
Stephen Warren | 1575140 | 2018-01-05 13:04:54 -0700 | [diff] [blame] | 74 | continue; |
Simon Goldschmidt | f8878da | 2019-01-14 22:38:23 +0100 | [diff] [blame] | 75 | /* Watch out for RAM at end of address space! */ |
Stephen Warren | 1575140 | 2018-01-05 13:04:54 -0700 | [diff] [blame] | 76 | bank_end = gd->bd->bi_dram[bank].start + |
Simon Goldschmidt | f8878da | 2019-01-14 22:38:23 +0100 | [diff] [blame] | 77 | gd->bd->bi_dram[bank].size - 1; |
| 78 | if (sp > bank_end) |
Stephen Warren | 1575140 | 2018-01-05 13:04:54 -0700 | [diff] [blame] | 79 | continue; |
Patrice Chotard | 8ce1f10 | 2020-02-13 19:29:50 +0100 | [diff] [blame] | 80 | if (bank_end > gd->ram_top) |
| 81 | bank_end = gd->ram_top - 1; |
| 82 | |
Simon Goldschmidt | f8878da | 2019-01-14 22:38:23 +0100 | [diff] [blame] | 83 | lmb_reserve(lmb, sp, bank_end - sp + 1); |
Stephen Warren | 1575140 | 2018-01-05 13:04:54 -0700 | [diff] [blame] | 84 | break; |
| 85 | } |
John Rigby | 2d1916e | 2010-10-13 13:57:36 -0600 | [diff] [blame] | 86 | } |
| 87 | |
Alexander Graf | b7b8410 | 2016-11-17 01:02:57 +0100 | [diff] [blame] | 88 | __weak void board_quiesce_devices(void) |
| 89 | { |
| 90 | } |
| 91 | |
Simon Glass | bce1b92 | 2013-06-19 21:15:10 -0700 | [diff] [blame] | 92 | /** |
| 93 | * announce_and_cleanup() - Print message and prepare for kernel boot |
| 94 | * |
| 95 | * @fake: non-zero to do everything except actually boot |
| 96 | */ |
| 97 | static void announce_and_cleanup(int fake) |
Simon Schwarz | 0a672d4 | 2012-03-15 04:01:45 +0000 | [diff] [blame] | 98 | { |
Simon Schwarz | 0a672d4 | 2012-03-15 04:01:45 +0000 | [diff] [blame] | 99 | bootstage_mark_name(BOOTSTAGE_ID_BOOTM_HANDOFF, "start_kernel"); |
Simon Glass | 94fd131 | 2012-09-28 08:56:37 +0000 | [diff] [blame] | 100 | #ifdef CONFIG_BOOTSTAGE_FDT |
Mela Custodio | 91290cf | 2014-02-20 00:16:56 +0900 | [diff] [blame] | 101 | bootstage_fdt_add_report(); |
Simon Glass | 94fd131 | 2012-09-28 08:56:37 +0000 | [diff] [blame] | 102 | #endif |
Simon Schwarz | 0a672d4 | 2012-03-15 04:01:45 +0000 | [diff] [blame] | 103 | #ifdef CONFIG_BOOTSTAGE_REPORT |
| 104 | bootstage_report(); |
| 105 | #endif |
| 106 | |
| 107 | #ifdef CONFIG_USB_DEVICE |
| 108 | udc_disconnect(); |
| 109 | #endif |
Alexander Graf | b7b8410 | 2016-11-17 01:02:57 +0100 | [diff] [blame] | 110 | |
| 111 | board_quiesce_devices(); |
| 112 | |
Keerthy | 6dad56d | 2019-02-20 18:17:22 +0530 | [diff] [blame] | 113 | printf("\nStarting kernel ...%s\n\n", fake ? |
| 114 | "(fake run for tracing)" : ""); |
Stefan Roese | 1b8220a | 2017-03-20 12:51:50 +0100 | [diff] [blame] | 115 | /* |
| 116 | * Call remove function of all devices with a removal flag set. |
| 117 | * This may be useful for last-stage operations, like cancelling |
| 118 | * of DMA operation or releasing device internal buffers. |
| 119 | */ |
| 120 | dm_remove_devices_flags(DM_REMOVE_ACTIVE_ALL); |
| 121 | |
Simon Schwarz | 0a672d4 | 2012-03-15 04:01:45 +0000 | [diff] [blame] | 122 | cleanup_before_linux(); |
| 123 | } |
| 124 | |
wdenk | 5779d8d | 2003-12-06 23:55:10 +0000 | [diff] [blame] | 125 | static void setup_start_tag (bd_t *bd) |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 126 | { |
Simon Schwarz | 0a672d4 | 2012-03-15 04:01:45 +0000 | [diff] [blame] | 127 | params = (struct tag *)bd->bi_boot_params; |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 128 | |
wdenk | 5779d8d | 2003-12-06 23:55:10 +0000 | [diff] [blame] | 129 | params->hdr.tag = ATAG_CORE; |
| 130 | params->hdr.size = tag_size (tag_core); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 131 | |
wdenk | 5779d8d | 2003-12-06 23:55:10 +0000 | [diff] [blame] | 132 | params->u.core.flags = 0; |
| 133 | params->u.core.pagesize = 0; |
| 134 | params->u.core.rootdev = 0; |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 135 | |
wdenk | 5779d8d | 2003-12-06 23:55:10 +0000 | [diff] [blame] | 136 | params = tag_next (params); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 137 | } |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 138 | |
Simon Schwarz | 0a672d4 | 2012-03-15 04:01:45 +0000 | [diff] [blame] | 139 | static void setup_memory_tags(bd_t *bd) |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 140 | { |
wdenk | 5779d8d | 2003-12-06 23:55:10 +0000 | [diff] [blame] | 141 | int i; |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 142 | |
wdenk | 5779d8d | 2003-12-06 23:55:10 +0000 | [diff] [blame] | 143 | for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) { |
| 144 | params->hdr.tag = ATAG_MEM; |
| 145 | params->hdr.size = tag_size (tag_mem32); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 146 | |
wdenk | 5779d8d | 2003-12-06 23:55:10 +0000 | [diff] [blame] | 147 | params->u.mem.start = bd->bi_dram[i].start; |
| 148 | params->u.mem.size = bd->bi_dram[i].size; |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 149 | |
wdenk | 5779d8d | 2003-12-06 23:55:10 +0000 | [diff] [blame] | 150 | params = tag_next (params); |
| 151 | } |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 152 | } |
| 153 | |
Simon Schwarz | 0a672d4 | 2012-03-15 04:01:45 +0000 | [diff] [blame] | 154 | static void setup_commandline_tag(bd_t *bd, char *commandline) |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 155 | { |
wdenk | 5779d8d | 2003-12-06 23:55:10 +0000 | [diff] [blame] | 156 | char *p; |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 157 | |
wdenk | 109c0e3 | 2004-03-23 21:43:07 +0000 | [diff] [blame] | 158 | if (!commandline) |
| 159 | return; |
| 160 | |
wdenk | 5779d8d | 2003-12-06 23:55:10 +0000 | [diff] [blame] | 161 | /* eat leading white space */ |
| 162 | for (p = commandline; *p == ' '; p++); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 163 | |
wdenk | 5779d8d | 2003-12-06 23:55:10 +0000 | [diff] [blame] | 164 | /* skip non-existent command lines so the kernel will still |
| 165 | * use its default command line. |
| 166 | */ |
| 167 | if (*p == '\0') |
| 168 | return; |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 169 | |
wdenk | 5779d8d | 2003-12-06 23:55:10 +0000 | [diff] [blame] | 170 | params->hdr.tag = ATAG_CMDLINE; |
| 171 | params->hdr.size = |
| 172 | (sizeof (struct tag_header) + strlen (p) + 1 + 4) >> 2; |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 173 | |
wdenk | 5779d8d | 2003-12-06 23:55:10 +0000 | [diff] [blame] | 174 | strcpy (params->u.cmdline.cmdline, p); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 175 | |
wdenk | 5779d8d | 2003-12-06 23:55:10 +0000 | [diff] [blame] | 176 | params = tag_next (params); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 177 | } |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 178 | |
Simon Schwarz | 0a672d4 | 2012-03-15 04:01:45 +0000 | [diff] [blame] | 179 | static void setup_initrd_tag(bd_t *bd, ulong initrd_start, ulong initrd_end) |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 180 | { |
wdenk | 5779d8d | 2003-12-06 23:55:10 +0000 | [diff] [blame] | 181 | /* an ATAG_INITRD node tells the kernel where the compressed |
| 182 | * ramdisk can be found. ATAG_RDIMG is a better name, actually. |
| 183 | */ |
wdenk | 498b8db | 2004-04-18 22:26:17 +0000 | [diff] [blame] | 184 | params->hdr.tag = ATAG_INITRD2; |
wdenk | 5779d8d | 2003-12-06 23:55:10 +0000 | [diff] [blame] | 185 | params->hdr.size = tag_size (tag_initrd); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 186 | |
wdenk | 5779d8d | 2003-12-06 23:55:10 +0000 | [diff] [blame] | 187 | params->u.initrd.start = initrd_start; |
| 188 | params->u.initrd.size = initrd_end - initrd_start; |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 189 | |
wdenk | 5779d8d | 2003-12-06 23:55:10 +0000 | [diff] [blame] | 190 | params = tag_next (params); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 191 | } |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 192 | |
Simon Glass | c19d13b | 2013-05-08 08:06:02 +0000 | [diff] [blame] | 193 | static void setup_serial_tag(struct tag **tmp) |
wdenk | 3a574cb | 2005-05-19 22:39:42 +0000 | [diff] [blame] | 194 | { |
| 195 | struct tag *params = *tmp; |
| 196 | struct tag_serialnr serialnr; |
wdenk | 3a574cb | 2005-05-19 22:39:42 +0000 | [diff] [blame] | 197 | |
| 198 | get_board_serial(&serialnr); |
| 199 | params->hdr.tag = ATAG_SERIAL; |
| 200 | params->hdr.size = tag_size (tag_serialnr); |
| 201 | params->u.serialnr.low = serialnr.low; |
| 202 | params->u.serialnr.high= serialnr.high; |
| 203 | params = tag_next (params); |
| 204 | *tmp = params; |
| 205 | } |
wdenk | 3a574cb | 2005-05-19 22:39:42 +0000 | [diff] [blame] | 206 | |
Simon Glass | c19d13b | 2013-05-08 08:06:02 +0000 | [diff] [blame] | 207 | static void setup_revision_tag(struct tag **in_params) |
wdenk | 289f932 | 2005-01-12 00:15:14 +0000 | [diff] [blame] | 208 | { |
| 209 | u32 rev = 0; |
wdenk | 289f932 | 2005-01-12 00:15:14 +0000 | [diff] [blame] | 210 | |
| 211 | rev = get_board_rev(); |
wdenk | 289f932 | 2005-01-12 00:15:14 +0000 | [diff] [blame] | 212 | params->hdr.tag = ATAG_REVISION; |
| 213 | params->hdr.size = tag_size (tag_revision); |
| 214 | params->u.revision.rev = rev; |
| 215 | params = tag_next (params); |
| 216 | } |
wdenk | 289f932 | 2005-01-12 00:15:14 +0000 | [diff] [blame] | 217 | |
Simon Schwarz | 0a672d4 | 2012-03-15 04:01:45 +0000 | [diff] [blame] | 218 | static void setup_end_tag(bd_t *bd) |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 219 | { |
wdenk | 5779d8d | 2003-12-06 23:55:10 +0000 | [diff] [blame] | 220 | params->hdr.tag = ATAG_NONE; |
| 221 | params->hdr.size = 0; |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 222 | } |
| 223 | |
Pali Rohár | 89e6f13 | 2012-10-19 02:00:04 +0000 | [diff] [blame] | 224 | __weak void setup_board_tags(struct tag **in_params) {} |
| 225 | |
Marc Zyngier | f510aea | 2014-07-12 14:24:03 +0100 | [diff] [blame] | 226 | #ifdef CONFIG_ARM64 |
Andre Przywara | bb97545 | 2013-09-19 18:06:43 +0200 | [diff] [blame] | 227 | static void do_nonsec_virt_switch(void) |
| 228 | { |
David Feng | 0ae7653 | 2013-12-14 11:47:35 +0800 | [diff] [blame] | 229 | smp_kick_all_cpus(); |
York Sun | dcd468b | 2015-01-06 13:18:42 -0800 | [diff] [blame] | 230 | dcache_disable(); /* flush cache before swtiching to EL2 */ |
Andre Przywara | bb97545 | 2013-09-19 18:06:43 +0200 | [diff] [blame] | 231 | } |
Marc Zyngier | f510aea | 2014-07-12 14:24:03 +0100 | [diff] [blame] | 232 | #endif |
Andre Przywara | bb97545 | 2013-09-19 18:06:43 +0200 | [diff] [blame] | 233 | |
Lokesh Vutla | 899a9de | 2019-10-07 13:52:15 +0530 | [diff] [blame] | 234 | __weak void board_prep_linux(bootm_headers_t *images) { } |
| 235 | |
Simon Schwarz | 0a672d4 | 2012-03-15 04:01:45 +0000 | [diff] [blame] | 236 | /* Subcommand: PREP */ |
| 237 | static void boot_prep_linux(bootm_headers_t *images) |
| 238 | { |
Simon Glass | 00caae6 | 2017-08-03 12:22:12 -0600 | [diff] [blame] | 239 | char *commandline = env_get("bootargs"); |
Simon Schwarz | 0a672d4 | 2012-03-15 04:01:45 +0000 | [diff] [blame] | 240 | |
Simon Glass | c19d13b | 2013-05-08 08:06:02 +0000 | [diff] [blame] | 241 | if (IMAGE_ENABLE_OF_LIBFDT && images->ft_len) { |
Simon Schwarz | 0a672d4 | 2012-03-15 04:01:45 +0000 | [diff] [blame] | 242 | #ifdef CONFIG_OF_LIBFDT |
Simon Schwarz | 0a672d4 | 2012-03-15 04:01:45 +0000 | [diff] [blame] | 243 | debug("using: FDT\n"); |
Simon Glass | 6caa195 | 2013-05-08 08:06:03 +0000 | [diff] [blame] | 244 | if (image_setup_linux(images)) { |
Simon Schwarz | 0a672d4 | 2012-03-15 04:01:45 +0000 | [diff] [blame] | 245 | printf("FDT creation failed! hanging..."); |
| 246 | hang(); |
| 247 | } |
Simon Schwarz | 0a672d4 | 2012-03-15 04:01:45 +0000 | [diff] [blame] | 248 | #endif |
Simon Glass | c19d13b | 2013-05-08 08:06:02 +0000 | [diff] [blame] | 249 | } else if (BOOTM_ENABLE_TAGS) { |
Simon Schwarz | 0a672d4 | 2012-03-15 04:01:45 +0000 | [diff] [blame] | 250 | debug("using: ATAGS\n"); |
| 251 | setup_start_tag(gd->bd); |
Simon Glass | c19d13b | 2013-05-08 08:06:02 +0000 | [diff] [blame] | 252 | if (BOOTM_ENABLE_SERIAL_TAG) |
| 253 | setup_serial_tag(¶ms); |
| 254 | if (BOOTM_ENABLE_CMDLINE_TAG) |
| 255 | setup_commandline_tag(gd->bd, commandline); |
| 256 | if (BOOTM_ENABLE_REVISION_TAG) |
| 257 | setup_revision_tag(¶ms); |
| 258 | if (BOOTM_ENABLE_MEMORY_TAGS) |
| 259 | setup_memory_tags(gd->bd); |
| 260 | if (BOOTM_ENABLE_INITRD_TAG) { |
Jeffy Chen | f7ee071 | 2016-01-14 10:19:36 +0800 | [diff] [blame] | 261 | /* |
| 262 | * In boot_ramdisk_high(), it may relocate ramdisk to |
| 263 | * a specified location. And set images->initrd_start & |
| 264 | * images->initrd_end to relocated ramdisk's start/end |
| 265 | * addresses. So use them instead of images->rd_start & |
| 266 | * images->rd_end when possible. |
| 267 | */ |
| 268 | if (images->initrd_start && images->initrd_end) { |
| 269 | setup_initrd_tag(gd->bd, images->initrd_start, |
| 270 | images->initrd_end); |
| 271 | } else if (images->rd_start && images->rd_end) { |
Simon Glass | c19d13b | 2013-05-08 08:06:02 +0000 | [diff] [blame] | 272 | setup_initrd_tag(gd->bd, images->rd_start, |
| 273 | images->rd_end); |
| 274 | } |
| 275 | } |
Pali Rohár | 89e6f13 | 2012-10-19 02:00:04 +0000 | [diff] [blame] | 276 | setup_board_tags(¶ms); |
Simon Schwarz | 0a672d4 | 2012-03-15 04:01:45 +0000 | [diff] [blame] | 277 | setup_end_tag(gd->bd); |
Simon Glass | c19d13b | 2013-05-08 08:06:02 +0000 | [diff] [blame] | 278 | } else { |
Simon Schwarz | 0a672d4 | 2012-03-15 04:01:45 +0000 | [diff] [blame] | 279 | printf("FDT and ATAGS support not compiled in - hanging\n"); |
| 280 | hang(); |
Simon Schwarz | 0a672d4 | 2012-03-15 04:01:45 +0000 | [diff] [blame] | 281 | } |
Lokesh Vutla | 899a9de | 2019-10-07 13:52:15 +0530 | [diff] [blame] | 282 | |
| 283 | board_prep_linux(images); |
Simon Schwarz | 0a672d4 | 2012-03-15 04:01:45 +0000 | [diff] [blame] | 284 | } |
| 285 | |
Jon Medhurst \(Tixy\) | f225d39 | 2016-06-23 13:37:32 +0100 | [diff] [blame] | 286 | __weak bool armv7_boot_nonsec_default(void) |
| 287 | { |
| 288 | #ifdef CONFIG_ARMV7_BOOT_SEC_DEFAULT |
| 289 | return false; |
| 290 | #else |
| 291 | return true; |
| 292 | #endif |
| 293 | } |
| 294 | |
Jan Kiszka | 104d6fb | 2015-04-21 07:18:24 +0200 | [diff] [blame] | 295 | #ifdef CONFIG_ARMV7_NONSEC |
Ian Campbell | 97a8196 | 2014-12-21 09:45:11 +0000 | [diff] [blame] | 296 | bool armv7_boot_nonsec(void) |
Hans de Goede | 8bc347e | 2014-11-14 09:34:31 +0100 | [diff] [blame] | 297 | { |
Simon Glass | 00caae6 | 2017-08-03 12:22:12 -0600 | [diff] [blame] | 298 | char *s = env_get("bootm_boot_mode"); |
Jon Medhurst \(Tixy\) | f225d39 | 2016-06-23 13:37:32 +0100 | [diff] [blame] | 299 | bool nonsec = armv7_boot_nonsec_default(); |
Hans de Goede | 8bc347e | 2014-11-14 09:34:31 +0100 | [diff] [blame] | 300 | |
| 301 | if (s && !strcmp(s, "sec")) |
| 302 | nonsec = false; |
| 303 | |
| 304 | if (s && !strcmp(s, "nonsec")) |
| 305 | nonsec = true; |
| 306 | |
| 307 | return nonsec; |
| 308 | } |
| 309 | #endif |
| 310 | |
Alison Wang | ec6617c | 2016-11-10 10:49:03 +0800 | [diff] [blame] | 311 | #ifdef CONFIG_ARM64 |
Alison Wang | e2c18e4 | 2016-11-10 10:49:04 +0800 | [diff] [blame] | 312 | __weak void update_os_arch_secondary_cores(uint8_t os_arch) |
| 313 | { |
| 314 | } |
| 315 | |
Alison Wang | ec6617c | 2016-11-10 10:49:03 +0800 | [diff] [blame] | 316 | #ifdef CONFIG_ARMV8_SWITCH_TO_EL1 |
| 317 | static void switch_to_el1(void) |
| 318 | { |
| 319 | if ((IH_ARCH_DEFAULT == IH_ARCH_ARM64) && |
| 320 | (images.os.arch == IH_ARCH_ARM)) |
| 321 | armv8_switch_to_el1(0, (u64)gd->bd->bi_arch_number, |
Alison Wang | 7c5e1fe | 2017-01-17 09:39:17 +0800 | [diff] [blame] | 322 | (u64)images.ft_addr, 0, |
Alison Wang | ec6617c | 2016-11-10 10:49:03 +0800 | [diff] [blame] | 323 | (u64)images.ep, |
| 324 | ES_TO_AARCH32); |
| 325 | else |
Alison Wang | 7c5e1fe | 2017-01-17 09:39:17 +0800 | [diff] [blame] | 326 | armv8_switch_to_el1((u64)images.ft_addr, 0, 0, 0, |
Alison Wang | ec6617c | 2016-11-10 10:49:03 +0800 | [diff] [blame] | 327 | images.ep, |
| 328 | ES_TO_AARCH64); |
| 329 | } |
| 330 | #endif |
| 331 | #endif |
| 332 | |
Simon Schwarz | 0a672d4 | 2012-03-15 04:01:45 +0000 | [diff] [blame] | 333 | /* Subcommand: GO */ |
Simon Glass | bce1b92 | 2013-06-19 21:15:10 -0700 | [diff] [blame] | 334 | static void boot_jump_linux(bootm_headers_t *images, int flag) |
Simon Schwarz | 0a672d4 | 2012-03-15 04:01:45 +0000 | [diff] [blame] | 335 | { |
David Feng | 0ae7653 | 2013-12-14 11:47:35 +0800 | [diff] [blame] | 336 | #ifdef CONFIG_ARM64 |
Tom Rini | 3f1b6be | 2014-08-14 06:42:35 -0400 | [diff] [blame] | 337 | void (*kernel_entry)(void *fdt_addr, void *res0, void *res1, |
| 338 | void *res2); |
David Feng | 0ae7653 | 2013-12-14 11:47:35 +0800 | [diff] [blame] | 339 | int fake = (flag & BOOTM_STATE_OS_FAKE_GO); |
| 340 | |
Tom Rini | 3f1b6be | 2014-08-14 06:42:35 -0400 | [diff] [blame] | 341 | kernel_entry = (void (*)(void *fdt_addr, void *res0, void *res1, |
| 342 | void *res2))images->ep; |
David Feng | 0ae7653 | 2013-12-14 11:47:35 +0800 | [diff] [blame] | 343 | |
| 344 | debug("## Transferring control to Linux (at address %lx)...\n", |
| 345 | (ulong) kernel_entry); |
| 346 | bootstage_mark(BOOTSTAGE_ID_RUN_OS); |
| 347 | |
| 348 | announce_and_cleanup(fake); |
| 349 | |
Marc Zyngier | c19e0dd | 2014-07-12 14:23:58 +0100 | [diff] [blame] | 350 | if (!fake) { |
macro.wave.z@gmail.com | 9a56175 | 2016-12-08 11:58:25 +0800 | [diff] [blame] | 351 | #ifdef CONFIG_ARMV8_PSCI |
| 352 | armv8_setup_psci(); |
| 353 | #endif |
Marc Zyngier | c19e0dd | 2014-07-12 14:23:58 +0100 | [diff] [blame] | 354 | do_nonsec_virt_switch(); |
Alison Wang | ec6617c | 2016-11-10 10:49:03 +0800 | [diff] [blame] | 355 | |
Alison Wang | e2c18e4 | 2016-11-10 10:49:04 +0800 | [diff] [blame] | 356 | update_os_arch_secondary_cores(images->os.arch); |
| 357 | |
Alison Wang | ec6617c | 2016-11-10 10:49:03 +0800 | [diff] [blame] | 358 | #ifdef CONFIG_ARMV8_SWITCH_TO_EL1 |
Alison Wang | 7c5e1fe | 2017-01-17 09:39:17 +0800 | [diff] [blame] | 359 | armv8_switch_to_el2((u64)images->ft_addr, 0, 0, 0, |
Alison Wang | ec6617c | 2016-11-10 10:49:03 +0800 | [diff] [blame] | 360 | (u64)switch_to_el1, ES_TO_AARCH64); |
| 361 | #else |
| 362 | if ((IH_ARCH_DEFAULT == IH_ARCH_ARM64) && |
| 363 | (images->os.arch == IH_ARCH_ARM)) |
| 364 | armv8_switch_to_el2(0, (u64)gd->bd->bi_arch_number, |
Alison Wang | 7c5e1fe | 2017-01-17 09:39:17 +0800 | [diff] [blame] | 365 | (u64)images->ft_addr, 0, |
Alison Wang | ec6617c | 2016-11-10 10:49:03 +0800 | [diff] [blame] | 366 | (u64)images->ep, |
| 367 | ES_TO_AARCH32); |
| 368 | else |
Alison Wang | 7c5e1fe | 2017-01-17 09:39:17 +0800 | [diff] [blame] | 369 | armv8_switch_to_el2((u64)images->ft_addr, 0, 0, 0, |
Alison Wang | ec6617c | 2016-11-10 10:49:03 +0800 | [diff] [blame] | 370 | images->ep, |
| 371 | ES_TO_AARCH64); |
| 372 | #endif |
Marc Zyngier | c19e0dd | 2014-07-12 14:23:58 +0100 | [diff] [blame] | 373 | } |
David Feng | 0ae7653 | 2013-12-14 11:47:35 +0800 | [diff] [blame] | 374 | #else |
Simon Schwarz | 0a672d4 | 2012-03-15 04:01:45 +0000 | [diff] [blame] | 375 | unsigned long machid = gd->bd->bi_arch_number; |
| 376 | char *s; |
| 377 | void (*kernel_entry)(int zero, int arch, uint params); |
Stephen Warren | 1723997 | 2012-04-19 11:34:00 +0000 | [diff] [blame] | 378 | unsigned long r2; |
Simon Glass | bce1b92 | 2013-06-19 21:15:10 -0700 | [diff] [blame] | 379 | int fake = (flag & BOOTM_STATE_OS_FAKE_GO); |
Simon Schwarz | 0a672d4 | 2012-03-15 04:01:45 +0000 | [diff] [blame] | 380 | |
| 381 | kernel_entry = (void (*)(int, int, uint))images->ep; |
Patrice Chotard | dc89c6f | 2017-04-25 11:07:46 +0200 | [diff] [blame] | 382 | #ifdef CONFIG_CPU_V7M |
| 383 | ulong addr = (ulong)kernel_entry | 1; |
| 384 | kernel_entry = (void *)addr; |
| 385 | #endif |
Simon Glass | 00caae6 | 2017-08-03 12:22:12 -0600 | [diff] [blame] | 386 | s = env_get("machid"); |
Simon Schwarz | 0a672d4 | 2012-03-15 04:01:45 +0000 | [diff] [blame] | 387 | if (s) { |
Peng Fan | bc3c89b | 2015-11-24 16:54:20 +0800 | [diff] [blame] | 388 | if (strict_strtoul(s, 16, &machid) < 0) { |
| 389 | debug("strict_strtoul failed!\n"); |
| 390 | return; |
| 391 | } |
Simon Schwarz | 0a672d4 | 2012-03-15 04:01:45 +0000 | [diff] [blame] | 392 | printf("Using machid 0x%lx from environment\n", machid); |
| 393 | } |
| 394 | |
| 395 | debug("## Transferring control to Linux (at address %08lx)" \ |
| 396 | "...\n", (ulong) kernel_entry); |
| 397 | bootstage_mark(BOOTSTAGE_ID_RUN_OS); |
Simon Glass | bce1b92 | 2013-06-19 21:15:10 -0700 | [diff] [blame] | 398 | announce_and_cleanup(fake); |
Stephen Warren | 1723997 | 2012-04-19 11:34:00 +0000 | [diff] [blame] | 399 | |
Simon Glass | c19d13b | 2013-05-08 08:06:02 +0000 | [diff] [blame] | 400 | if (IMAGE_ENABLE_OF_LIBFDT && images->ft_len) |
Stephen Warren | 1723997 | 2012-04-19 11:34:00 +0000 | [diff] [blame] | 401 | r2 = (unsigned long)images->ft_addr; |
| 402 | else |
Stephen Warren | 1723997 | 2012-04-19 11:34:00 +0000 | [diff] [blame] | 403 | r2 = gd->bd->bi_boot_params; |
| 404 | |
Marc Zyngier | c19e0dd | 2014-07-12 14:23:58 +0100 | [diff] [blame] | 405 | if (!fake) { |
Jan Kiszka | 104d6fb | 2015-04-21 07:18:24 +0200 | [diff] [blame] | 406 | #ifdef CONFIG_ARMV7_NONSEC |
Ian Campbell | 97a8196 | 2014-12-21 09:45:11 +0000 | [diff] [blame] | 407 | if (armv7_boot_nonsec()) { |
Hans de Goede | 8bc347e | 2014-11-14 09:34:31 +0100 | [diff] [blame] | 408 | armv7_init_nonsec(); |
| 409 | secure_ram_addr(_do_nonsec_entry)(kernel_entry, |
| 410 | 0, machid, r2); |
| 411 | } else |
Marc Zyngier | f510aea | 2014-07-12 14:24:03 +0100 | [diff] [blame] | 412 | #endif |
Hans de Goede | 8bc347e | 2014-11-14 09:34:31 +0100 | [diff] [blame] | 413 | kernel_entry(0, machid, r2); |
Marc Zyngier | c19e0dd | 2014-07-12 14:23:58 +0100 | [diff] [blame] | 414 | } |
David Feng | 0ae7653 | 2013-12-14 11:47:35 +0800 | [diff] [blame] | 415 | #endif |
Simon Schwarz | 0a672d4 | 2012-03-15 04:01:45 +0000 | [diff] [blame] | 416 | } |
| 417 | |
| 418 | /* Main Entry point for arm bootm implementation |
| 419 | * |
| 420 | * Modeled after the powerpc implementation |
| 421 | * DIFFERENCE: Instead of calling prep and go at the end |
| 422 | * they are called if subcommand is equal 0. |
| 423 | */ |
Eric Nelson | 8d196e5 | 2014-09-30 15:40:01 -0700 | [diff] [blame] | 424 | int do_bootm_linux(int flag, int argc, char * const argv[], |
| 425 | bootm_headers_t *images) |
Simon Schwarz | 0a672d4 | 2012-03-15 04:01:45 +0000 | [diff] [blame] | 426 | { |
| 427 | /* No need for those on ARM */ |
| 428 | if (flag & BOOTM_STATE_OS_BD_T || flag & BOOTM_STATE_OS_CMDLINE) |
| 429 | return -1; |
| 430 | |
| 431 | if (flag & BOOTM_STATE_OS_PREP) { |
| 432 | boot_prep_linux(images); |
| 433 | return 0; |
| 434 | } |
| 435 | |
Simon Glass | bce1b92 | 2013-06-19 21:15:10 -0700 | [diff] [blame] | 436 | if (flag & (BOOTM_STATE_OS_GO | BOOTM_STATE_OS_FAKE_GO)) { |
| 437 | boot_jump_linux(images, flag); |
Simon Schwarz | 0a672d4 | 2012-03-15 04:01:45 +0000 | [diff] [blame] | 438 | return 0; |
| 439 | } |
| 440 | |
| 441 | boot_prep_linux(images); |
Simon Glass | bce1b92 | 2013-06-19 21:15:10 -0700 | [diff] [blame] | 442 | boot_jump_linux(images, flag); |
Simon Schwarz | 0a672d4 | 2012-03-15 04:01:45 +0000 | [diff] [blame] | 443 | return 0; |
John Rigby | 2d1916e | 2010-10-13 13:57:36 -0600 | [diff] [blame] | 444 | } |
Marek Vasut | 44f074c | 2012-03-14 21:52:45 +0000 | [diff] [blame] | 445 | |
Miao Yan | 871a57b | 2013-11-28 17:51:38 +0800 | [diff] [blame] | 446 | #if defined(CONFIG_BOOTM_VXWORKS) |
| 447 | void boot_prep_vxworks(bootm_headers_t *images) |
| 448 | { |
| 449 | #if defined(CONFIG_OF_LIBFDT) |
| 450 | int off; |
| 451 | |
| 452 | if (images->ft_addr) { |
| 453 | off = fdt_path_offset(images->ft_addr, "/memory"); |
Hannes Schmelzer | 7f1cb1d | 2018-05-04 10:49:11 +0200 | [diff] [blame] | 454 | if (off > 0) { |
Ma Haijun | e29607e | 2014-07-12 14:24:06 +0100 | [diff] [blame] | 455 | if (arch_fixup_fdt(images->ft_addr)) |
Miao Yan | 871a57b | 2013-11-28 17:51:38 +0800 | [diff] [blame] | 456 | puts("## WARNING: fixup memory failed!\n"); |
| 457 | } |
| 458 | } |
| 459 | #endif |
| 460 | cleanup_before_linux(); |
| 461 | } |
| 462 | void boot_jump_vxworks(bootm_headers_t *images) |
| 463 | { |
Vasyl Vavrychuk | 3194daa | 2018-04-10 12:36:36 +0300 | [diff] [blame] | 464 | #if defined(CONFIG_ARM64) && defined(CONFIG_ARMV8_PSCI) |
| 465 | armv8_setup_psci(); |
| 466 | smp_kick_all_cpus(); |
| 467 | #endif |
| 468 | |
Miao Yan | 871a57b | 2013-11-28 17:51:38 +0800 | [diff] [blame] | 469 | /* ARM VxWorks requires device tree physical address to be passed */ |
| 470 | ((void (*)(void *))images->ep)(images->ft_addr); |
| 471 | } |
| 472 | #endif |