blob: 50828e6021812909c65aec01c1bc1d868ddf560d [file] [log] [blame]
Aneesh Vbcae7212011-07-21 09:10:21 -04001/*
2 * (C) Copyright 2010
3 * Texas Instruments, <www.ti.com>
4 *
5 * Aneesh V <aneesh@ti.com>
6 *
Wolfgang Denk1a459662013-07-08 09:37:19 +02007 * SPDX-License-Identifier: GPL-2.0+
Aneesh Vbcae7212011-07-21 09:10:21 -04008 */
9#include <common.h>
Simon Glass11516512014-11-10 17:16:46 -070010#include <dm.h>
Tom Rini47f7bca2012-08-13 12:03:19 -070011#include <spl.h>
Aneesh Vbcae7212011-07-21 09:10:21 -040012#include <asm/u-boot.h>
Simon Schwarzbb085b82011-09-14 15:29:26 -040013#include <nand.h>
Aneesh V8cf686e2011-07-21 09:10:27 -040014#include <fat.h>
Simon Glassefb21722011-10-10 08:55:19 +000015#include <version.h>
Aneesh V8cf686e2011-07-21 09:10:27 -040016#include <image.h>
Aneesh V2d01dd92011-10-21 12:29:34 -040017#include <malloc.h>
Simon Glass11516512014-11-10 17:16:46 -070018#include <dm/root.h>
Andreas Müller761ca312012-01-04 15:26:24 +000019#include <linux/compiler.h>
Aneesh Vbcae7212011-07-21 09:10:21 -040020
21DECLARE_GLOBAL_DATA_PTR;
22
Stefan Roese3c6f8a02012-08-28 10:50:59 +020023#ifndef CONFIG_SYS_UBOOT_START
24#define CONFIG_SYS_UBOOT_START CONFIG_SYS_TEXT_BASE
25#endif
Stefano Babicae83d882012-08-23 12:46:16 +020026#ifndef CONFIG_SYS_MONITOR_LEN
Andreas Bießmanne76caa62014-10-25 02:54:55 +020027/* Unknown U-Boot size, let's assume it will not be more than 200 KB */
Stefano Babicae83d882012-08-23 12:46:16 +020028#define CONFIG_SYS_MONITOR_LEN (200 * 1024)
29#endif
30
Tom Rini47f7bca2012-08-13 12:03:19 -070031u32 *boot_params_ptr = NULL;
Simon Schwarz9ea5c6e2011-09-14 15:33:34 -040032
Tom Rini6507f132012-08-22 15:31:05 -070033/* Define board data structure */
Aneesh Vbcae7212011-07-21 09:10:21 -040034static bd_t bdata __attribute__ ((section(".data")));
35
Simon Schwarz379c19a2012-03-15 04:01:38 +000036/*
Heiko Schocher496c5482016-06-07 08:31:20 +020037 * Board-specific Platform code can reimplement show_boot_progress () if needed
38 */
39__weak void show_boot_progress(int val) {}
40
41/*
Simon Schwarz379c19a2012-03-15 04:01:38 +000042 * Default function to determine if u-boot or the OS should
43 * be started. This implementation always returns 1.
44 *
45 * Please implement your own board specific funcion to do this.
46 *
47 * RETURN
48 * 0 to not start u-boot
49 * positive if u-boot should start
50 */
51#ifdef CONFIG_SPL_OS_BOOT
52__weak int spl_start_uboot(void)
53{
Tom Rini026b2fe2012-08-14 12:06:43 -070054 puts("SPL: Please implement spl_start_uboot() for your board\n");
55 puts("SPL: Direct Linux boot not active!\n");
Simon Schwarz379c19a2012-03-15 04:01:38 +000056 return 1;
57}
Ladislav Michl431889d2016-07-12 20:28:14 +020058
59/*
60 * Weak default function for arch specific zImage check. Return zero
61 * and fill start and end address if image is recognized.
62 */
63int __weak bootz_setup(ulong image, ulong *start, ulong *end)
64{
65 return 1;
66}
Simon Schwarz379c19a2012-03-15 04:01:38 +000067#endif
68
Stefan Roeseea8256f2012-08-23 08:34:21 +020069/*
70 * Weak default function for board specific cleanup/preparation before
71 * Linux boot. Some boards/platforms might not need it, so just provide
72 * an empty stub here.
73 */
74__weak void spl_board_prepare_for_linux(void)
75{
76 /* Nothing to do! */
77}
78
Michal Simek3a3b9142016-05-10 07:54:20 +020079__weak void spl_board_prepare_for_boot(void)
80{
81 /* Nothing to do! */
82}
83
Simon Glassd95ceb92016-09-24 18:19:52 -060084void spl_set_header_raw_uboot(struct spl_image_info *spl_image)
Heiko Schocher0c3117b2014-10-31 08:31:00 +010085{
Simon Glassd95ceb92016-09-24 18:19:52 -060086 spl_image->size = CONFIG_SYS_MONITOR_LEN;
87 spl_image->entry_point = CONFIG_SYS_UBOOT_START;
Vikas Manocha634fcf02017-03-31 16:34:39 -070088#ifdef CONFIG_CPU_V7M
89 spl_image->entry_point |= 0x1;
90#endif
Simon Glassd95ceb92016-09-24 18:19:52 -060091 spl_image->load_addr = CONFIG_SYS_TEXT_BASE;
92 spl_image->os = IH_OS_U_BOOT;
93 spl_image->name = "U-Boot";
Heiko Schocher0c3117b2014-10-31 08:31:00 +010094}
95
Simon Glass71316c12016-09-24 18:19:53 -060096int spl_parse_image_header(struct spl_image_info *spl_image,
97 const struct image_header *header)
Aneesh V8cf686e2011-07-21 09:10:27 -040098{
Stefan Roese77552b02012-08-27 12:50:57 +020099 if (image_get_magic(header) == IH_MAGIC) {
Andrew F. Davis722a6b12017-02-16 11:18:39 -0600100#ifdef CONFIG_SPL_LEGACY_IMAGE_SUPPORT
101 u32 header_size = sizeof(struct image_header);
102
Simon Glass71316c12016-09-24 18:19:53 -0600103 if (spl_image->flags & SPL_COPY_PAYLOAD_ONLY) {
Stefan Roese022b4972012-08-27 12:50:58 +0200104 /*
105 * On some system (e.g. powerpc), the load-address and
106 * entry-point is located at address 0. We can't load
107 * to 0-0x40. So skip header in this case.
108 */
Simon Glass71316c12016-09-24 18:19:53 -0600109 spl_image->load_addr = image_get_load(header);
110 spl_image->entry_point = image_get_ep(header);
111 spl_image->size = image_get_data_size(header);
Stefan Roese022b4972012-08-27 12:50:58 +0200112 } else {
Simon Glass71316c12016-09-24 18:19:53 -0600113 spl_image->entry_point = image_get_load(header);
Stefan Roese022b4972012-08-27 12:50:58 +0200114 /* Load including the header */
Simon Glass71316c12016-09-24 18:19:53 -0600115 spl_image->load_addr = spl_image->entry_point -
Stefan Roese022b4972012-08-27 12:50:58 +0200116 header_size;
Simon Glass71316c12016-09-24 18:19:53 -0600117 spl_image->size = image_get_data_size(header) +
Stefan Roese022b4972012-08-27 12:50:58 +0200118 header_size;
119 }
Simon Glass71316c12016-09-24 18:19:53 -0600120 spl_image->os = image_get_os(header);
121 spl_image->name = image_get_name(header);
Andre Przywara11e14792017-01-02 11:48:31 +0000122 debug("spl: payload image: %.*s load addr: 0x%lx size: %d\n",
Simon Glass71316c12016-09-24 18:19:53 -0600123 (int)sizeof(spl_image->name), spl_image->name,
124 spl_image->load_addr, spl_image->size);
Andrew F. Davis722a6b12017-02-16 11:18:39 -0600125#else
126 /* LEGACY image not supported */
127 debug("Legacy boot image support not enabled, proceeding to other boot methods");
128 return -EINVAL;
129#endif
Aneesh V8cf686e2011-07-21 09:10:27 -0400130 } else {
Albert ARIBAUD \(3ADEV\)8c80eb32015-03-31 11:40:50 +0200131#ifdef CONFIG_SPL_PANIC_ON_RAW_IMAGE
132 /*
133 * CONFIG_SPL_PANIC_ON_RAW_IMAGE is defined when the
134 * code which loads images in SPL cannot guarantee that
135 * absolutely all read errors will be reported.
136 * An example is the LPC32XX MLC NAND driver, which
137 * will consider that a completely unreadable NAND block
138 * is bad, and thus should be skipped silently.
139 */
140 panic("** no mkimage signature but raw image not supported");
Paul Kocialkowski85a37722016-08-24 20:04:42 +0200141#endif
142
Ladislav Michl431889d2016-07-12 20:28:14 +0200143#ifdef CONFIG_SPL_OS_BOOT
144 ulong start, end;
145
146 if (!bootz_setup((ulong)header, &start, &end)) {
Simon Glass71316c12016-09-24 18:19:53 -0600147 spl_image->name = "Linux";
148 spl_image->os = IH_OS_LINUX;
149 spl_image->load_addr = CONFIG_SYS_LOAD_ADDR;
150 spl_image->entry_point = CONFIG_SYS_LOAD_ADDR;
151 spl_image->size = end - start;
Andre Przywara11e14792017-01-02 11:48:31 +0000152 debug("spl: payload zImage, load addr: 0x%lx size: %d\n",
Simon Glass71316c12016-09-24 18:19:53 -0600153 spl_image->load_addr, spl_image->size);
Ladislav Michl431889d2016-07-12 20:28:14 +0200154 return 0;
155 }
156#endif
Paul Kocialkowski85a37722016-08-24 20:04:42 +0200157
Andrew F. Davis24eb39b2017-02-16 11:18:38 -0600158#ifdef CONFIG_SPL_RAW_IMAGE_SUPPORT
Aneesh V8cf686e2011-07-21 09:10:27 -0400159 /* Signature not found - assume u-boot.bin */
Tom Rini026b2fe2012-08-14 12:06:43 -0700160 debug("mkimage signature not found - ih_magic = %x\n",
Aneesh V8cf686e2011-07-21 09:10:27 -0400161 header->ih_magic);
Simon Glass71316c12016-09-24 18:19:53 -0600162 spl_set_header_raw_uboot(spl_image);
Andrew F. Davis24eb39b2017-02-16 11:18:38 -0600163#else
164 /* RAW image not supported, proceed to other boot methods. */
165 debug("Raw boot image support not enabled, proceeding to other boot methods");
166 return -EINVAL;
Albert ARIBAUD \(3ADEV\)8c80eb32015-03-31 11:40:50 +0200167#endif
Aneesh V8cf686e2011-07-21 09:10:27 -0400168 }
Andrew F. Davis24eb39b2017-02-16 11:18:38 -0600169
Marek Vasut7e0f2262016-04-29 00:44:54 +0200170 return 0;
Aneesh V8cf686e2011-07-21 09:10:27 -0400171}
172
Allen Martina759f1e2012-10-19 21:08:22 +0000173__weak void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image)
Aneesh V8cf686e2011-07-21 09:10:27 -0400174{
SRICHARAN R4a0eb752013-04-24 00:41:24 +0000175 typedef void __noreturn (*image_entry_noargs_t)(void);
176
Aneesh V8cf686e2011-07-21 09:10:27 -0400177 image_entry_noargs_t image_entry =
Andre Przywara11e14792017-01-02 11:48:31 +0000178 (image_entry_noargs_t)spl_image->entry_point;
Aneesh V8cf686e2011-07-21 09:10:27 -0400179
Andre Przywara11e14792017-01-02 11:48:31 +0000180 debug("image entry point: 0x%lX\n", spl_image->entry_point);
SRICHARAN R4a0eb752013-04-24 00:41:24 +0000181 image_entry();
Aneesh V8cf686e2011-07-21 09:10:27 -0400182}
183
Eddie Cai340f4182017-03-15 08:43:28 -0600184static int spl_common_init(bool setup_malloc)
Aneesh Vbcae7212011-07-21 09:10:21 -0400185{
Simon Glassf3d46bd2015-02-27 22:06:42 -0700186 int ret;
187
Eddie Cai340f4182017-03-15 08:43:28 -0600188 debug("spl_early_init()\n");
189
190#if defined(CONFIG_SYS_MALLOC_F_LEN)
191 if (setup_malloc) {
Marek Vasut94b9e222016-05-25 02:14:56 +0200192#ifdef CONFIG_MALLOC_F_ADDR
Eddie Cai340f4182017-03-15 08:43:28 -0600193 gd->malloc_base = CONFIG_MALLOC_F_ADDR;
Marek Vasut94b9e222016-05-25 02:14:56 +0200194#endif
Eddie Cai340f4182017-03-15 08:43:28 -0600195 gd->malloc_limit = CONFIG_SYS_MALLOC_F_LEN;
196 gd->malloc_ptr = 0;
197 }
Tom Rini24dafad2012-08-13 14:13:07 -0700198#endif
Simon Glassd223e0a2016-07-04 11:57:56 -0600199 if (CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA)) {
Simon Glassf3d46bd2015-02-27 22:06:42 -0700200 ret = fdtdec_setup();
201 if (ret) {
202 debug("fdtdec_setup() returned error %d\n", ret);
Simon Glass070d00b2015-06-23 15:39:10 -0600203 return ret;
Simon Glassf3d46bd2015-02-27 22:06:42 -0700204 }
205 }
206 if (IS_ENABLED(CONFIG_SPL_DM)) {
Tom Rini7f73ca42017-01-14 12:20:23 -0500207 /* With CONFIG_SPL_OF_PLATDATA, bring in all devices */
Simon Glass7d23b9c2016-07-04 11:58:14 -0600208 ret = dm_init_and_scan(!CONFIG_IS_ENABLED(OF_PLATDATA));
Simon Glassf3d46bd2015-02-27 22:06:42 -0700209 if (ret) {
210 debug("dm_init_and_scan() returned error %d\n", ret);
Simon Glass070d00b2015-06-23 15:39:10 -0600211 return ret;
Simon Glassf3d46bd2015-02-27 22:06:42 -0700212 }
213 }
Eddie Cai340f4182017-03-15 08:43:28 -0600214
215 return 0;
216}
217
218int spl_early_init(void)
219{
220 int ret;
221
222 ret = spl_common_init(true);
223 if (ret)
224 return ret;
225 gd->flags |= GD_FLG_SPL_EARLY_INIT;
226
227 return 0;
228}
229
230int spl_init(void)
231{
232 int ret;
Tom Rinicf334ed2017-03-20 14:19:27 -0400233 bool setup_malloc = !(IS_ENABLED(CONFIG_SPL_STACK_R) &&
234 IS_ENABLED(CONFIG_SPL_SYS_MALLOC_SIMPLE));
Eddie Cai340f4182017-03-15 08:43:28 -0600235
236 if (!(gd->flags & GD_FLG_SPL_EARLY_INIT)) {
Tom Rinicf334ed2017-03-20 14:19:27 -0400237 ret = spl_common_init(setup_malloc);
Eddie Cai340f4182017-03-15 08:43:28 -0600238 if (ret)
239 return ret;
240 }
Simon Glass070d00b2015-06-23 15:39:10 -0600241 gd->flags |= GD_FLG_SPL_INIT;
Aneesh V2d01dd92011-10-21 12:29:34 -0400242
Simon Glass070d00b2015-06-23 15:39:10 -0600243 return 0;
244}
245
Nikita Kiryanovf101e4b2015-11-08 17:11:51 +0200246#ifndef BOOT_DEVICE_NONE
247#define BOOT_DEVICE_NONE 0xdeadbeef
248#endif
249
Nikita Kiryanovf101e4b2015-11-08 17:11:51 +0200250__weak void board_boot_order(u32 *spl_boot_list)
251{
252 spl_boot_list[0] = spl_boot_device();
253}
254
Simon Glassa0a80292016-09-24 18:19:58 -0600255static struct spl_image_loader *spl_ll_find_loader(uint boot_device)
256{
257 struct spl_image_loader *drv =
258 ll_entry_start(struct spl_image_loader, spl_image_loader);
259 const int n_ents =
260 ll_entry_count(struct spl_image_loader, spl_image_loader);
261 struct spl_image_loader *entry;
262
263 for (entry = drv; entry != drv + n_ents; entry++) {
264 if (boot_device == entry->boot_device)
265 return entry;
266 }
267
268 /* Not found */
269 return NULL;
270}
271
Simon Glass29d357d2016-11-30 15:30:52 -0700272static int spl_load_image(struct spl_image_info *spl_image,
273 struct spl_image_loader *loader)
Nikita Kiryanov5211b872015-11-08 17:11:50 +0200274{
Simon Glassecdfd692016-09-24 18:19:57 -0600275 struct spl_boot_device bootdev;
276
Simon Glass29d357d2016-11-30 15:30:52 -0700277 bootdev.boot_device = loader->boot_device;
Simon Glassecdfd692016-09-24 18:19:57 -0600278 bootdev.boot_device_name = NULL;
279
Simon Glass540bfe72016-11-30 15:30:51 -0700280 return loader->load_image(spl_image, &bootdev);
281}
282
283/**
284 * boot_from_devices() - Try loading an booting U-Boot from a list of devices
285 *
286 * @spl_image: Place to put the image details if successful
287 * @spl_boot_list: List of boot devices to try
288 * @count: Number of elements in spl_boot_list
289 * @return 0 if OK, -ve on error
290 */
291static int boot_from_devices(struct spl_image_info *spl_image,
292 u32 spl_boot_list[], int count)
293{
294 int i;
295
296 for (i = 0; i < count && spl_boot_list[i] != BOOT_DEVICE_NONE; i++) {
297 struct spl_image_loader *loader;
298
Simon Glass540bfe72016-11-30 15:30:51 -0700299 loader = spl_ll_find_loader(spl_boot_list[i]);
Nikita Kiryanov5211b872015-11-08 17:11:50 +0200300#if defined(CONFIG_SPL_SERIAL_SUPPORT) && defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
Simon Glass2acf35d2016-11-30 15:30:53 -0700301 if (loader)
Andrew F. Daviscf947da2017-01-12 10:19:55 -0600302 printf("Trying to boot from %s\n", loader->name);
Simon Glass2acf35d2016-11-30 15:30:53 -0700303 else
Simon Glass540bfe72016-11-30 15:30:51 -0700304 puts("SPL: Unsupported Boot Device!\n");
Nikita Kiryanov5211b872015-11-08 17:11:50 +0200305#endif
Simon Glass29d357d2016-11-30 15:30:52 -0700306 if (loader && !spl_load_image(spl_image, loader))
Simon Glass540bfe72016-11-30 15:30:51 -0700307 return 0;
308 }
309
Simon Glass97d9df02016-09-24 18:20:12 -0600310 return -ENODEV;
Nikita Kiryanov5211b872015-11-08 17:11:50 +0200311}
312
Simon Glass070d00b2015-06-23 15:39:10 -0600313void board_init_r(gd_t *dummy1, ulong dummy2)
314{
Simon Glassd32b2d12016-09-24 18:20:17 -0600315 u32 spl_boot_list[] = {
316 BOOT_DEVICE_NONE,
317 BOOT_DEVICE_NONE,
318 BOOT_DEVICE_NONE,
319 BOOT_DEVICE_NONE,
320 BOOT_DEVICE_NONE,
321 };
322 struct spl_image_info spl_image;
Simon Glass070d00b2015-06-23 15:39:10 -0600323
324 debug(">>spl:board_init_r()\n");
325
326#if defined(CONFIG_SYS_SPL_MALLOC_START)
327 mem_malloc_init(CONFIG_SYS_SPL_MALLOC_START,
328 CONFIG_SYS_SPL_MALLOC_SIZE);
329 gd->flags |= GD_FLG_FULL_MALLOC_INIT;
330#endif
331 if (!(gd->flags & GD_FLG_SPL_INIT)) {
332 if (spl_init())
333 hang();
334 }
Stefan Roeseea8256f2012-08-23 08:34:21 +0200335#ifndef CONFIG_PPC
336 /*
337 * timer_init() does not exist on PPC systems. The timer is initialized
338 * and enabled (decrementer) in interrupt_init() here.
339 */
Ilya Yanok4063c772012-09-17 10:26:26 +0000340 timer_init();
Stefan Roeseea8256f2012-08-23 08:34:21 +0200341#endif
Ilya Yanok4063c772012-09-17 10:26:26 +0000342
Tom Riniee08a822011-11-23 05:13:06 +0000343#ifdef CONFIG_SPL_BOARD_INIT
344 spl_board_init();
345#endif
346
Simon Glassd32b2d12016-09-24 18:20:17 -0600347 memset(&spl_image, '\0', sizeof(spl_image));
Vikas Manocha5bf52502017-04-07 15:38:13 -0700348#ifdef CONFIG_SYS_SPL_ARGS_ADDR
349 spl_image.arg = (void *)CONFIG_SYS_SPL_ARGS_ADDR;
350#endif
Nikita Kiryanovf101e4b2015-11-08 17:11:51 +0200351 board_boot_order(spl_boot_list);
Nikita Kiryanovf101e4b2015-11-08 17:11:51 +0200352
Simon Glass540bfe72016-11-30 15:30:51 -0700353 if (boot_from_devices(&spl_image, spl_boot_list,
354 ARRAY_SIZE(spl_boot_list))) {
Nikita Kiryanovf101e4b2015-11-08 17:11:51 +0200355 puts("SPL: failed to boot from all boot devices\n");
Aneesh V8cf686e2011-07-21 09:10:27 -0400356 hang();
Nikita Kiryanovf101e4b2015-11-08 17:11:51 +0200357 }
Aneesh V8cf686e2011-07-21 09:10:27 -0400358
Simon Schwarz9ea5c6e2011-09-14 15:33:34 -0400359 switch (spl_image.os) {
Aneesh V8cf686e2011-07-21 09:10:27 -0400360 case IH_OS_U_BOOT:
361 debug("Jumping to U-Boot\n");
Aneesh V8cf686e2011-07-21 09:10:27 -0400362 break;
Simon Schwarz379c19a2012-03-15 04:01:38 +0000363#ifdef CONFIG_SPL_OS_BOOT
364 case IH_OS_LINUX:
365 debug("Jumping to Linux\n");
366 spl_board_prepare_for_linux();
Vikas Manocha5bf52502017-04-07 15:38:13 -0700367 jump_to_image_linux(&spl_image);
Simon Schwarz379c19a2012-03-15 04:01:38 +0000368#endif
Aneesh V8cf686e2011-07-21 09:10:27 -0400369 default:
Tom Rini42120982012-08-27 14:58:28 -0700370 debug("Unsupported OS image.. Jumping nevertheless..\n");
Aneesh V8cf686e2011-07-21 09:10:27 -0400371 }
Simon Glassfb4f5e72014-11-10 17:16:45 -0700372#if defined(CONFIG_SYS_MALLOC_F_LEN) && !defined(CONFIG_SYS_SPL_MALLOC_SIZE)
373 debug("SPL malloc() used %#lx bytes (%ld KB)\n", gd->malloc_ptr,
374 gd->malloc_ptr / 1024);
375#endif
376
Andrew F. Daviscf947da2017-01-12 10:19:55 -0600377 debug("loaded - jumping to U-Boot...\n");
Michal Simek3a3b9142016-05-10 07:54:20 +0200378 spl_board_prepare_for_boot();
Allen Martina759f1e2012-10-19 21:08:22 +0000379 jump_to_image_no_args(&spl_image);
Aneesh Vbcae7212011-07-21 09:10:21 -0400380}
381
Tom Rini6507f132012-08-22 15:31:05 -0700382/*
383 * This requires UART clocks to be enabled. In order for this to work the
384 * caller must ensure that the gd pointer is valid.
385 */
Aneesh Vbcae7212011-07-21 09:10:21 -0400386void preloader_console_init(void)
387{
Aneesh Vbcae7212011-07-21 09:10:21 -0400388 gd->bd = &bdata;
Aneesh Vbcae7212011-07-21 09:10:21 -0400389 gd->baudrate = CONFIG_BAUDRATE;
390
Aneesh Vbcae7212011-07-21 09:10:21 -0400391 serial_init(); /* serial communications setup */
392
Ilya Yanokb88befa2011-11-01 13:16:03 +0000393 gd->have_console = 1;
394
Tom Rini026b2fe2012-08-14 12:06:43 -0700395 puts("\nU-Boot SPL " PLAIN_VERSION " (" U_BOOT_DATE " - " \
396 U_BOOT_TIME ")\n");
Tom Rini861a86f2012-08-13 11:37:56 -0700397#ifdef CONFIG_SPL_DISPLAY_PRINT
398 spl_display_print();
399#endif
Tom Rinicc3f7052011-10-04 04:59:23 +0000400}
Simon Glassdb910352015-03-03 08:03:00 -0700401
402/**
403 * spl_relocate_stack_gd() - Relocate stack ready for board_init_r() execution
404 *
405 * Sometimes board_init_f() runs with a stack in SRAM but we want to use SDRAM
406 * for the main board_init_r() execution. This is typically because we need
407 * more stack space for things like the MMC sub-system.
408 *
409 * This function calculates the stack position, copies the global_data into
Albert ARIBAUDadc421e2015-11-25 17:56:33 +0100410 * place, sets the new gd (except for ARM, for which setting GD within a C
411 * function may not always work) and returns the new stack position. The
412 * caller is responsible for setting up the sp register and, in the case
413 * of ARM, setting up gd.
414 *
415 * All of this is done using the same layout and alignments as done in
416 * board_init_f_init_reserve() / board_init_f_alloc_reserve().
Simon Glassdb910352015-03-03 08:03:00 -0700417 *
418 * @return new stack location, or 0 to use the same stack
419 */
420ulong spl_relocate_stack_gd(void)
421{
422#ifdef CONFIG_SPL_STACK_R
423 gd_t *new_gd;
Albert ARIBAUDadc421e2015-11-25 17:56:33 +0100424 ulong ptr = CONFIG_SPL_STACK_R_ADDR;
Simon Glassdb910352015-03-03 08:03:00 -0700425
Hans de Goededcfcb8d2015-09-13 15:04:17 +0200426#ifdef CONFIG_SPL_SYS_MALLOC_SIMPLE
427 if (CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN) {
Hans de Goededcfcb8d2015-09-13 15:04:17 +0200428 ptr -= CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN;
429 gd->malloc_base = ptr;
430 gd->malloc_limit = CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN;
431 gd->malloc_ptr = 0;
432 }
433#endif
Albert ARIBAUDadc421e2015-11-25 17:56:33 +0100434 /* Get stack position: use 8-byte alignment for ABI compliance */
435 ptr = CONFIG_SPL_STACK_R_ADDR - roundup(sizeof(gd_t),16);
436 new_gd = (gd_t *)ptr;
437 memcpy(new_gd, (void *)gd, sizeof(gd_t));
Simon Glass2f11cd92016-11-13 14:21:58 -0700438#if CONFIG_IS_ENABLED(DM)
439 dm_fixup_for_gd_move(new_gd);
440#endif
Albert ARIBAUDadc421e2015-11-25 17:56:33 +0100441#if !defined(CONFIG_ARM)
442 gd = new_gd;
443#endif
Simon Glassdb910352015-03-03 08:03:00 -0700444 return ptr;
445#else
446 return 0;
447#endif
448}