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Simon Schwarz0a672d42012-03-15 04:01:45 +00001/* Copyright (C) 2011
2 * Corscience GmbH & Co. KG - Simon Schwarz <schwarz@corscience.de>
3 * - Added prep subcommand support
4 * - Reorganized source - modeled after powerpc version
5 *
wdenkc6097192002-11-03 00:24:07 +00006 * (C) Copyright 2002
7 * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
8 * Marius Groeger <mgroeger@sysgo.de>
9 *
10 * Copyright (C) 2001 Erik Mouw (J.A.K.Mouw@its.tudelft.nl)
11 *
Wolfgang Denk1a459662013-07-08 09:37:19 +020012 * SPDX-License-Identifier: GPL-2.0+
wdenkc6097192002-11-03 00:24:07 +000013 */
14
15#include <common.h>
16#include <command.h>
Simon Glass9d922452017-05-17 17:18:03 -060017#include <dm.h>
Stefan Roese1b8220a2017-03-20 12:51:50 +010018#include <dm/root.h>
wdenkc6097192002-11-03 00:24:07 +000019#include <image.h>
Jean-Christophe PLAGNIOL-VILLARDa31e0912009-04-04 12:49:11 +020020#include <u-boot/zlib.h>
wdenkc6097192002-11-03 00:24:07 +000021#include <asm/byteorder.h>
Masahiro Yamadab08c8c42018-03-05 01:20:11 +090022#include <linux/libfdt.h>
Joe Hershberger0eb25b62015-03-22 17:08:59 -050023#include <mapmem.h>
John Rigby2d1916e2010-10-13 13:57:36 -060024#include <fdt_support.h>
Simon Schwarz0a672d42012-03-15 04:01:45 +000025#include <asm/bootm.h>
Marc Zyngierf510aea2014-07-12 14:24:03 +010026#include <asm/secure.h>
Pali Rohár89e6f132012-10-19 02:00:04 +000027#include <linux/compiler.h>
Eric Nelson8d196e52014-09-30 15:40:01 -070028#include <bootm.h>
29#include <vxworks.h>
wdenkc6097192002-11-03 00:24:07 +000030
Jan Kiszka104d6fb2015-04-21 07:18:24 +020031#ifdef CONFIG_ARMV7_NONSEC
Andre Przywarabb975452013-09-19 18:06:43 +020032#include <asm/armv7.h>
33#endif
Simon Glassc45300b2017-05-17 08:22:59 -060034#include <asm/setup.h>
Andre Przywarabb975452013-09-19 18:06:43 +020035
Wolfgang Denkd87080b2006-03-31 18:32:53 +020036DECLARE_GLOBAL_DATA_PTR;
37
wdenkc6097192002-11-03 00:24:07 +000038static struct tag *params;
John Rigby2d1916e2010-10-13 13:57:36 -060039
Simon Schwarz0a672d42012-03-15 04:01:45 +000040static ulong get_sp(void)
41{
42 ulong ret;
43
44 asm("mov %0, sp" : "=r"(ret) : );
45 return ret;
46}
47
John Rigby2d1916e2010-10-13 13:57:36 -060048void arch_lmb_reserve(struct lmb *lmb)
49{
Stephen Warren15751402018-01-05 13:04:54 -070050 ulong sp, bank_end;
51 int bank;
John Rigby2d1916e2010-10-13 13:57:36 -060052
53 /*
54 * Booting a (Linux) kernel image
55 *
56 * Allocate space for command line and board info - the
57 * address should be as high as possible within the reach of
58 * the kernel (see CONFIG_SYS_BOOTMAPSZ settings), but in unused
59 * memory, which means far enough below the current stack
60 * pointer.
61 */
62 sp = get_sp();
63 debug("## Current stack ends at 0x%08lx ", sp);
64
Rob Herringfcfa6962012-06-28 03:54:11 +000065 /* adjust sp by 4K to be safe */
66 sp -= 4096;
Stephen Warren15751402018-01-05 13:04:54 -070067 for (bank = 0; bank < CONFIG_NR_DRAM_BANKS; bank++) {
68 if (sp < gd->bd->bi_dram[bank].start)
69 continue;
70 bank_end = gd->bd->bi_dram[bank].start +
71 gd->bd->bi_dram[bank].size;
72 if (sp >= bank_end)
73 continue;
74 lmb_reserve(lmb, sp, bank_end - sp);
75 break;
76 }
John Rigby2d1916e2010-10-13 13:57:36 -060077}
78
Alexander Grafb7b84102016-11-17 01:02:57 +010079__weak void board_quiesce_devices(void)
80{
81}
82
Simon Glassbce1b922013-06-19 21:15:10 -070083/**
84 * announce_and_cleanup() - Print message and prepare for kernel boot
85 *
86 * @fake: non-zero to do everything except actually boot
87 */
88static void announce_and_cleanup(int fake)
Simon Schwarz0a672d42012-03-15 04:01:45 +000089{
Simon Glassbce1b922013-06-19 21:15:10 -070090 printf("\nStarting kernel ...%s\n\n", fake ?
91 "(fake run for tracing)" : "");
Simon Schwarz0a672d42012-03-15 04:01:45 +000092 bootstage_mark_name(BOOTSTAGE_ID_BOOTM_HANDOFF, "start_kernel");
Simon Glass94fd1312012-09-28 08:56:37 +000093#ifdef CONFIG_BOOTSTAGE_FDT
Mela Custodio91290cf2014-02-20 00:16:56 +090094 bootstage_fdt_add_report();
Simon Glass94fd1312012-09-28 08:56:37 +000095#endif
Simon Schwarz0a672d42012-03-15 04:01:45 +000096#ifdef CONFIG_BOOTSTAGE_REPORT
97 bootstage_report();
98#endif
99
100#ifdef CONFIG_USB_DEVICE
101 udc_disconnect();
102#endif
Alexander Grafb7b84102016-11-17 01:02:57 +0100103
104 board_quiesce_devices();
105
Stefan Roese1b8220a2017-03-20 12:51:50 +0100106 /*
107 * Call remove function of all devices with a removal flag set.
108 * This may be useful for last-stage operations, like cancelling
109 * of DMA operation or releasing device internal buffers.
110 */
111 dm_remove_devices_flags(DM_REMOVE_ACTIVE_ALL);
112
Simon Schwarz0a672d42012-03-15 04:01:45 +0000113 cleanup_before_linux();
114}
115
wdenk5779d8d2003-12-06 23:55:10 +0000116static void setup_start_tag (bd_t *bd)
wdenkc6097192002-11-03 00:24:07 +0000117{
Simon Schwarz0a672d42012-03-15 04:01:45 +0000118 params = (struct tag *)bd->bi_boot_params;
wdenkc6097192002-11-03 00:24:07 +0000119
wdenk5779d8d2003-12-06 23:55:10 +0000120 params->hdr.tag = ATAG_CORE;
121 params->hdr.size = tag_size (tag_core);
wdenkc6097192002-11-03 00:24:07 +0000122
wdenk5779d8d2003-12-06 23:55:10 +0000123 params->u.core.flags = 0;
124 params->u.core.pagesize = 0;
125 params->u.core.rootdev = 0;
wdenkc6097192002-11-03 00:24:07 +0000126
wdenk5779d8d2003-12-06 23:55:10 +0000127 params = tag_next (params);
wdenkc6097192002-11-03 00:24:07 +0000128}
wdenkc6097192002-11-03 00:24:07 +0000129
Simon Schwarz0a672d42012-03-15 04:01:45 +0000130static void setup_memory_tags(bd_t *bd)
wdenkc6097192002-11-03 00:24:07 +0000131{
wdenk5779d8d2003-12-06 23:55:10 +0000132 int i;
wdenkc6097192002-11-03 00:24:07 +0000133
wdenk5779d8d2003-12-06 23:55:10 +0000134 for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
135 params->hdr.tag = ATAG_MEM;
136 params->hdr.size = tag_size (tag_mem32);
wdenkc6097192002-11-03 00:24:07 +0000137
wdenk5779d8d2003-12-06 23:55:10 +0000138 params->u.mem.start = bd->bi_dram[i].start;
139 params->u.mem.size = bd->bi_dram[i].size;
wdenkc6097192002-11-03 00:24:07 +0000140
wdenk5779d8d2003-12-06 23:55:10 +0000141 params = tag_next (params);
142 }
wdenkc6097192002-11-03 00:24:07 +0000143}
144
Simon Schwarz0a672d42012-03-15 04:01:45 +0000145static void setup_commandline_tag(bd_t *bd, char *commandline)
wdenkc6097192002-11-03 00:24:07 +0000146{
wdenk5779d8d2003-12-06 23:55:10 +0000147 char *p;
wdenkc6097192002-11-03 00:24:07 +0000148
wdenk109c0e32004-03-23 21:43:07 +0000149 if (!commandline)
150 return;
151
wdenk5779d8d2003-12-06 23:55:10 +0000152 /* eat leading white space */
153 for (p = commandline; *p == ' '; p++);
wdenkc6097192002-11-03 00:24:07 +0000154
wdenk5779d8d2003-12-06 23:55:10 +0000155 /* skip non-existent command lines so the kernel will still
156 * use its default command line.
157 */
158 if (*p == '\0')
159 return;
wdenkc6097192002-11-03 00:24:07 +0000160
wdenk5779d8d2003-12-06 23:55:10 +0000161 params->hdr.tag = ATAG_CMDLINE;
162 params->hdr.size =
163 (sizeof (struct tag_header) + strlen (p) + 1 + 4) >> 2;
wdenkc6097192002-11-03 00:24:07 +0000164
wdenk5779d8d2003-12-06 23:55:10 +0000165 strcpy (params->u.cmdline.cmdline, p);
wdenkc6097192002-11-03 00:24:07 +0000166
wdenk5779d8d2003-12-06 23:55:10 +0000167 params = tag_next (params);
wdenkc6097192002-11-03 00:24:07 +0000168}
wdenkc6097192002-11-03 00:24:07 +0000169
Simon Schwarz0a672d42012-03-15 04:01:45 +0000170static void setup_initrd_tag(bd_t *bd, ulong initrd_start, ulong initrd_end)
wdenkc6097192002-11-03 00:24:07 +0000171{
wdenk5779d8d2003-12-06 23:55:10 +0000172 /* an ATAG_INITRD node tells the kernel where the compressed
173 * ramdisk can be found. ATAG_RDIMG is a better name, actually.
174 */
wdenk498b8db2004-04-18 22:26:17 +0000175 params->hdr.tag = ATAG_INITRD2;
wdenk5779d8d2003-12-06 23:55:10 +0000176 params->hdr.size = tag_size (tag_initrd);
wdenkc6097192002-11-03 00:24:07 +0000177
wdenk5779d8d2003-12-06 23:55:10 +0000178 params->u.initrd.start = initrd_start;
179 params->u.initrd.size = initrd_end - initrd_start;
wdenkc6097192002-11-03 00:24:07 +0000180
wdenk5779d8d2003-12-06 23:55:10 +0000181 params = tag_next (params);
wdenkc6097192002-11-03 00:24:07 +0000182}
wdenkc6097192002-11-03 00:24:07 +0000183
Simon Glassc19d13b2013-05-08 08:06:02 +0000184static void setup_serial_tag(struct tag **tmp)
wdenk3a574cb2005-05-19 22:39:42 +0000185{
186 struct tag *params = *tmp;
187 struct tag_serialnr serialnr;
wdenk3a574cb2005-05-19 22:39:42 +0000188
189 get_board_serial(&serialnr);
190 params->hdr.tag = ATAG_SERIAL;
191 params->hdr.size = tag_size (tag_serialnr);
192 params->u.serialnr.low = serialnr.low;
193 params->u.serialnr.high= serialnr.high;
194 params = tag_next (params);
195 *tmp = params;
196}
wdenk3a574cb2005-05-19 22:39:42 +0000197
Simon Glassc19d13b2013-05-08 08:06:02 +0000198static void setup_revision_tag(struct tag **in_params)
wdenk289f9322005-01-12 00:15:14 +0000199{
200 u32 rev = 0;
wdenk289f9322005-01-12 00:15:14 +0000201
202 rev = get_board_rev();
wdenk289f9322005-01-12 00:15:14 +0000203 params->hdr.tag = ATAG_REVISION;
204 params->hdr.size = tag_size (tag_revision);
205 params->u.revision.rev = rev;
206 params = tag_next (params);
207}
wdenk289f9322005-01-12 00:15:14 +0000208
Simon Schwarz0a672d42012-03-15 04:01:45 +0000209static void setup_end_tag(bd_t *bd)
wdenkc6097192002-11-03 00:24:07 +0000210{
wdenk5779d8d2003-12-06 23:55:10 +0000211 params->hdr.tag = ATAG_NONE;
212 params->hdr.size = 0;
wdenkc6097192002-11-03 00:24:07 +0000213}
214
Pali Rohár89e6f132012-10-19 02:00:04 +0000215__weak void setup_board_tags(struct tag **in_params) {}
216
Marc Zyngierf510aea2014-07-12 14:24:03 +0100217#ifdef CONFIG_ARM64
Andre Przywarabb975452013-09-19 18:06:43 +0200218static void do_nonsec_virt_switch(void)
219{
David Feng0ae76532013-12-14 11:47:35 +0800220 smp_kick_all_cpus();
York Sundcd468b2015-01-06 13:18:42 -0800221 dcache_disable(); /* flush cache before swtiching to EL2 */
Andre Przywarabb975452013-09-19 18:06:43 +0200222}
Marc Zyngierf510aea2014-07-12 14:24:03 +0100223#endif
Andre Przywarabb975452013-09-19 18:06:43 +0200224
Simon Schwarz0a672d42012-03-15 04:01:45 +0000225/* Subcommand: PREP */
226static void boot_prep_linux(bootm_headers_t *images)
227{
Simon Glass00caae62017-08-03 12:22:12 -0600228 char *commandline = env_get("bootargs");
Simon Schwarz0a672d42012-03-15 04:01:45 +0000229
Simon Glassc19d13b2013-05-08 08:06:02 +0000230 if (IMAGE_ENABLE_OF_LIBFDT && images->ft_len) {
Simon Schwarz0a672d42012-03-15 04:01:45 +0000231#ifdef CONFIG_OF_LIBFDT
Simon Schwarz0a672d42012-03-15 04:01:45 +0000232 debug("using: FDT\n");
Simon Glass6caa1952013-05-08 08:06:03 +0000233 if (image_setup_linux(images)) {
Simon Schwarz0a672d42012-03-15 04:01:45 +0000234 printf("FDT creation failed! hanging...");
235 hang();
236 }
Simon Schwarz0a672d42012-03-15 04:01:45 +0000237#endif
Simon Glassc19d13b2013-05-08 08:06:02 +0000238 } else if (BOOTM_ENABLE_TAGS) {
Simon Schwarz0a672d42012-03-15 04:01:45 +0000239 debug("using: ATAGS\n");
240 setup_start_tag(gd->bd);
Simon Glassc19d13b2013-05-08 08:06:02 +0000241 if (BOOTM_ENABLE_SERIAL_TAG)
242 setup_serial_tag(&params);
243 if (BOOTM_ENABLE_CMDLINE_TAG)
244 setup_commandline_tag(gd->bd, commandline);
245 if (BOOTM_ENABLE_REVISION_TAG)
246 setup_revision_tag(&params);
247 if (BOOTM_ENABLE_MEMORY_TAGS)
248 setup_memory_tags(gd->bd);
249 if (BOOTM_ENABLE_INITRD_TAG) {
Jeffy Chenf7ee0712016-01-14 10:19:36 +0800250 /*
251 * In boot_ramdisk_high(), it may relocate ramdisk to
252 * a specified location. And set images->initrd_start &
253 * images->initrd_end to relocated ramdisk's start/end
254 * addresses. So use them instead of images->rd_start &
255 * images->rd_end when possible.
256 */
257 if (images->initrd_start && images->initrd_end) {
258 setup_initrd_tag(gd->bd, images->initrd_start,
259 images->initrd_end);
260 } else if (images->rd_start && images->rd_end) {
Simon Glassc19d13b2013-05-08 08:06:02 +0000261 setup_initrd_tag(gd->bd, images->rd_start,
262 images->rd_end);
263 }
264 }
Pali Rohár89e6f132012-10-19 02:00:04 +0000265 setup_board_tags(&params);
Simon Schwarz0a672d42012-03-15 04:01:45 +0000266 setup_end_tag(gd->bd);
Simon Glassc19d13b2013-05-08 08:06:02 +0000267 } else {
Simon Schwarz0a672d42012-03-15 04:01:45 +0000268 printf("FDT and ATAGS support not compiled in - hanging\n");
269 hang();
Simon Schwarz0a672d42012-03-15 04:01:45 +0000270 }
271}
272
Jon Medhurst \(Tixy\)f225d392016-06-23 13:37:32 +0100273__weak bool armv7_boot_nonsec_default(void)
274{
275#ifdef CONFIG_ARMV7_BOOT_SEC_DEFAULT
276 return false;
277#else
278 return true;
279#endif
280}
281
Jan Kiszka104d6fb2015-04-21 07:18:24 +0200282#ifdef CONFIG_ARMV7_NONSEC
Ian Campbell97a81962014-12-21 09:45:11 +0000283bool armv7_boot_nonsec(void)
Hans de Goede8bc347e2014-11-14 09:34:31 +0100284{
Simon Glass00caae62017-08-03 12:22:12 -0600285 char *s = env_get("bootm_boot_mode");
Jon Medhurst \(Tixy\)f225d392016-06-23 13:37:32 +0100286 bool nonsec = armv7_boot_nonsec_default();
Hans de Goede8bc347e2014-11-14 09:34:31 +0100287
288 if (s && !strcmp(s, "sec"))
289 nonsec = false;
290
291 if (s && !strcmp(s, "nonsec"))
292 nonsec = true;
293
294 return nonsec;
295}
296#endif
297
Alison Wangec6617c2016-11-10 10:49:03 +0800298#ifdef CONFIG_ARM64
Alison Wange2c18e42016-11-10 10:49:04 +0800299__weak void update_os_arch_secondary_cores(uint8_t os_arch)
300{
301}
302
Alison Wangec6617c2016-11-10 10:49:03 +0800303#ifdef CONFIG_ARMV8_SWITCH_TO_EL1
304static void switch_to_el1(void)
305{
306 if ((IH_ARCH_DEFAULT == IH_ARCH_ARM64) &&
307 (images.os.arch == IH_ARCH_ARM))
308 armv8_switch_to_el1(0, (u64)gd->bd->bi_arch_number,
Alison Wang7c5e1fe2017-01-17 09:39:17 +0800309 (u64)images.ft_addr, 0,
Alison Wangec6617c2016-11-10 10:49:03 +0800310 (u64)images.ep,
311 ES_TO_AARCH32);
312 else
Alison Wang7c5e1fe2017-01-17 09:39:17 +0800313 armv8_switch_to_el1((u64)images.ft_addr, 0, 0, 0,
Alison Wangec6617c2016-11-10 10:49:03 +0800314 images.ep,
315 ES_TO_AARCH64);
316}
317#endif
318#endif
319
Simon Schwarz0a672d42012-03-15 04:01:45 +0000320/* Subcommand: GO */
Simon Glassbce1b922013-06-19 21:15:10 -0700321static void boot_jump_linux(bootm_headers_t *images, int flag)
Simon Schwarz0a672d42012-03-15 04:01:45 +0000322{
David Feng0ae76532013-12-14 11:47:35 +0800323#ifdef CONFIG_ARM64
Tom Rini3f1b6be2014-08-14 06:42:35 -0400324 void (*kernel_entry)(void *fdt_addr, void *res0, void *res1,
325 void *res2);
David Feng0ae76532013-12-14 11:47:35 +0800326 int fake = (flag & BOOTM_STATE_OS_FAKE_GO);
327
Tom Rini3f1b6be2014-08-14 06:42:35 -0400328 kernel_entry = (void (*)(void *fdt_addr, void *res0, void *res1,
329 void *res2))images->ep;
David Feng0ae76532013-12-14 11:47:35 +0800330
331 debug("## Transferring control to Linux (at address %lx)...\n",
332 (ulong) kernel_entry);
333 bootstage_mark(BOOTSTAGE_ID_RUN_OS);
334
335 announce_and_cleanup(fake);
336
Marc Zyngierc19e0dd2014-07-12 14:23:58 +0100337 if (!fake) {
macro.wave.z@gmail.com9a561752016-12-08 11:58:25 +0800338#ifdef CONFIG_ARMV8_PSCI
339 armv8_setup_psci();
340#endif
Marc Zyngierc19e0dd2014-07-12 14:23:58 +0100341 do_nonsec_virt_switch();
Alison Wangec6617c2016-11-10 10:49:03 +0800342
Alison Wange2c18e42016-11-10 10:49:04 +0800343 update_os_arch_secondary_cores(images->os.arch);
344
Alison Wangec6617c2016-11-10 10:49:03 +0800345#ifdef CONFIG_ARMV8_SWITCH_TO_EL1
Alison Wang7c5e1fe2017-01-17 09:39:17 +0800346 armv8_switch_to_el2((u64)images->ft_addr, 0, 0, 0,
Alison Wangec6617c2016-11-10 10:49:03 +0800347 (u64)switch_to_el1, ES_TO_AARCH64);
348#else
349 if ((IH_ARCH_DEFAULT == IH_ARCH_ARM64) &&
350 (images->os.arch == IH_ARCH_ARM))
351 armv8_switch_to_el2(0, (u64)gd->bd->bi_arch_number,
Alison Wang7c5e1fe2017-01-17 09:39:17 +0800352 (u64)images->ft_addr, 0,
Alison Wangec6617c2016-11-10 10:49:03 +0800353 (u64)images->ep,
354 ES_TO_AARCH32);
355 else
Alison Wang7c5e1fe2017-01-17 09:39:17 +0800356 armv8_switch_to_el2((u64)images->ft_addr, 0, 0, 0,
Alison Wangec6617c2016-11-10 10:49:03 +0800357 images->ep,
358 ES_TO_AARCH64);
359#endif
Marc Zyngierc19e0dd2014-07-12 14:23:58 +0100360 }
David Feng0ae76532013-12-14 11:47:35 +0800361#else
Simon Schwarz0a672d42012-03-15 04:01:45 +0000362 unsigned long machid = gd->bd->bi_arch_number;
363 char *s;
364 void (*kernel_entry)(int zero, int arch, uint params);
Stephen Warren17239972012-04-19 11:34:00 +0000365 unsigned long r2;
Simon Glassbce1b922013-06-19 21:15:10 -0700366 int fake = (flag & BOOTM_STATE_OS_FAKE_GO);
Simon Schwarz0a672d42012-03-15 04:01:45 +0000367
368 kernel_entry = (void (*)(int, int, uint))images->ep;
Patrice Chotarddc89c6f2017-04-25 11:07:46 +0200369#ifdef CONFIG_CPU_V7M
370 ulong addr = (ulong)kernel_entry | 1;
371 kernel_entry = (void *)addr;
372#endif
Simon Glass00caae62017-08-03 12:22:12 -0600373 s = env_get("machid");
Simon Schwarz0a672d42012-03-15 04:01:45 +0000374 if (s) {
Peng Fanbc3c89b2015-11-24 16:54:20 +0800375 if (strict_strtoul(s, 16, &machid) < 0) {
376 debug("strict_strtoul failed!\n");
377 return;
378 }
Simon Schwarz0a672d42012-03-15 04:01:45 +0000379 printf("Using machid 0x%lx from environment\n", machid);
380 }
381
382 debug("## Transferring control to Linux (at address %08lx)" \
383 "...\n", (ulong) kernel_entry);
384 bootstage_mark(BOOTSTAGE_ID_RUN_OS);
Simon Glassbce1b922013-06-19 21:15:10 -0700385 announce_and_cleanup(fake);
Stephen Warren17239972012-04-19 11:34:00 +0000386
Simon Glassc19d13b2013-05-08 08:06:02 +0000387 if (IMAGE_ENABLE_OF_LIBFDT && images->ft_len)
Stephen Warren17239972012-04-19 11:34:00 +0000388 r2 = (unsigned long)images->ft_addr;
389 else
Stephen Warren17239972012-04-19 11:34:00 +0000390 r2 = gd->bd->bi_boot_params;
391
Marc Zyngierc19e0dd2014-07-12 14:23:58 +0100392 if (!fake) {
Jan Kiszka104d6fb2015-04-21 07:18:24 +0200393#ifdef CONFIG_ARMV7_NONSEC
Ian Campbell97a81962014-12-21 09:45:11 +0000394 if (armv7_boot_nonsec()) {
Hans de Goede8bc347e2014-11-14 09:34:31 +0100395 armv7_init_nonsec();
396 secure_ram_addr(_do_nonsec_entry)(kernel_entry,
397 0, machid, r2);
398 } else
Marc Zyngierf510aea2014-07-12 14:24:03 +0100399#endif
Hans de Goede8bc347e2014-11-14 09:34:31 +0100400 kernel_entry(0, machid, r2);
Marc Zyngierc19e0dd2014-07-12 14:23:58 +0100401 }
David Feng0ae76532013-12-14 11:47:35 +0800402#endif
Simon Schwarz0a672d42012-03-15 04:01:45 +0000403}
404
405/* Main Entry point for arm bootm implementation
406 *
407 * Modeled after the powerpc implementation
408 * DIFFERENCE: Instead of calling prep and go at the end
409 * they are called if subcommand is equal 0.
410 */
Eric Nelson8d196e52014-09-30 15:40:01 -0700411int do_bootm_linux(int flag, int argc, char * const argv[],
412 bootm_headers_t *images)
Simon Schwarz0a672d42012-03-15 04:01:45 +0000413{
414 /* No need for those on ARM */
415 if (flag & BOOTM_STATE_OS_BD_T || flag & BOOTM_STATE_OS_CMDLINE)
416 return -1;
417
418 if (flag & BOOTM_STATE_OS_PREP) {
419 boot_prep_linux(images);
420 return 0;
421 }
422
Simon Glassbce1b922013-06-19 21:15:10 -0700423 if (flag & (BOOTM_STATE_OS_GO | BOOTM_STATE_OS_FAKE_GO)) {
424 boot_jump_linux(images, flag);
Simon Schwarz0a672d42012-03-15 04:01:45 +0000425 return 0;
426 }
427
428 boot_prep_linux(images);
Simon Glassbce1b922013-06-19 21:15:10 -0700429 boot_jump_linux(images, flag);
Simon Schwarz0a672d42012-03-15 04:01:45 +0000430 return 0;
John Rigby2d1916e2010-10-13 13:57:36 -0600431}
Marek Vasut44f074c2012-03-14 21:52:45 +0000432
Miao Yan871a57b2013-11-28 17:51:38 +0800433#if defined(CONFIG_BOOTM_VXWORKS)
434void boot_prep_vxworks(bootm_headers_t *images)
435{
436#if defined(CONFIG_OF_LIBFDT)
437 int off;
438
439 if (images->ft_addr) {
440 off = fdt_path_offset(images->ft_addr, "/memory");
441 if (off < 0) {
Ma Haijune29607e2014-07-12 14:24:06 +0100442 if (arch_fixup_fdt(images->ft_addr))
Miao Yan871a57b2013-11-28 17:51:38 +0800443 puts("## WARNING: fixup memory failed!\n");
444 }
445 }
446#endif
447 cleanup_before_linux();
448}
449void boot_jump_vxworks(bootm_headers_t *images)
450{
451 /* ARM VxWorks requires device tree physical address to be passed */
452 ((void (*)(void *))images->ep)(images->ft_addr);
453}
454#endif