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Tom Rini83d290c2018-05-06 17:58:06 -04001// SPDX-License-Identifier: GPL-2.0+
Tom Rini6507f132012-08-22 15:31:05 -07002/*
3 * (C) Copyright 2010-2012
4 * Texas Instruments, <www.ti.com>
5 *
6 * Aneesh V <aneesh@ti.com>
7 * Tom Rini <trini@ti.com>
Tom Rini6507f132012-08-22 15:31:05 -07008 */
York Sunfb97b862017-09-28 08:42:14 -07009
Tom Rini6507f132012-08-22 15:31:05 -070010#include <common.h>
11#include <config.h>
Simon Glass691d7192020-05-10 11:40:02 -060012#include <init.h>
Simon Glassf7ae49f2020-05-10 11:40:05 -060013#include <log.h>
Tom Rini6507f132012-08-22 15:31:05 -070014#include <spl.h>
15#include <image.h>
Simon Glass90526e92020-05-10 11:39:56 -060016#include <asm/cache.h>
Simon Glass401d1c42020-10-30 21:38:53 -060017#include <asm/global_data.h>
Tom Rini6507f132012-08-22 15:31:05 -070018#include <linux/compiler.h>
Simon Glassc62db352017-05-31 19:47:48 -060019#include <asm/mach-types.h>
Tom Rini6507f132012-08-22 15:31:05 -070020
Tom Rinib5d92ba2015-07-31 19:55:10 -040021#ifndef CONFIG_SPL_DM
Tom Rini6507f132012-08-22 15:31:05 -070022/* Pointer to as well as the global data structure for SPL */
23DECLARE_GLOBAL_DATA_PTR;
Simon Glass480ca132014-12-23 12:04:51 -070024
25/*
26 * WARNING: This is going away very soon. Don't use it and don't submit
27 * pafches that rely on it. The global_data area is set up in crt0.S.
28 */
Marek BehĂșn236f2ec2021-05-20 13:23:52 +020029gd_t gdata __section(".data");
Simon Glassfc8fdc72015-03-03 08:02:58 -070030#endif
Tom Rini6507f132012-08-22 15:31:05 -070031
32/*
Jeremy Huntb8cb51d2016-07-18 12:01:02 -040033 * In the context of SPL, board_init_f() prepares the hardware for execution
34 * from system RAM (DRAM, DDR...). As system RAM may not be available yet,
35 * board_init_f() must use the current GD to store any data which must be
36 * passed on to later stages. These data include the relocation destination,
37 * the future stack, and the future GD location. BSS is cleared after this
38 * function (and therefore must be accessible).
39 *
40 * We provide this version by default but mark it as __weak to allow for
41 * platforms to do this in their own way if needed. Please see the top
42 * level U-Boot README "Board Initialization Flow" section for info on what
43 * to put in this function.
Tom Rini6507f132012-08-22 15:31:05 -070044 */
45void __weak board_init_f(ulong dummy)
46{
Tom Rini6507f132012-08-22 15:31:05 -070047}
48
49/*
50 * This function jumps to an image with argument. Normally an FDT or ATAGS
51 * image.
Tom Rini6507f132012-08-22 15:31:05 -070052 */
Tom Rini71150072021-10-30 23:03:48 -040053#if CONFIG_IS_ENABLED(OS_BOOT)
York Sunfb97b862017-09-28 08:42:14 -070054#ifdef CONFIG_ARM64
55void __noreturn jump_to_image_linux(struct spl_image_info *spl_image)
56{
57 debug("Entering kernel arg pointer: 0x%p\n", spl_image->arg);
58 cleanup_before_linux();
59 armv8_switch_to_el2((u64)spl_image->arg, 0, 0, 0,
60 spl_image->entry_point, ES_TO_AARCH64);
61}
62#else
Vikas Manocha5bf52502017-04-07 15:38:13 -070063void __noreturn jump_to_image_linux(struct spl_image_info *spl_image)
Tom Rini6507f132012-08-22 15:31:05 -070064{
Tom Riniec101fd2013-08-09 11:22:15 -040065 unsigned long machid = 0xffffffff;
66#ifdef CONFIG_MACH_TYPE
67 machid = CONFIG_MACH_TYPE;
68#endif
69
Vikas Manocha5bf52502017-04-07 15:38:13 -070070 debug("Entering kernel arg pointer: 0x%p\n", spl_image->arg);
Tom Rini6507f132012-08-22 15:31:05 -070071 typedef void (*image_entry_arg_t)(int, int, void *)
72 __attribute__ ((noreturn));
73 image_entry_arg_t image_entry =
Simon Glassca12e652016-09-24 18:19:54 -060074 (image_entry_arg_t)(uintptr_t) spl_image->entry_point;
Tom Rini6507f132012-08-22 15:31:05 -070075 cleanup_before_linux();
Vikas Manocha5bf52502017-04-07 15:38:13 -070076 image_entry(0, machid, spl_image->arg);
Tom Rini6507f132012-08-22 15:31:05 -070077}
York Sunfb97b862017-09-28 08:42:14 -070078#endif /* CONFIG_ARM64 */
Tom Rini6507f132012-08-22 15:31:05 -070079#endif
Ricardo Salveti949eb222021-10-20 15:12:06 +030080
81#if CONFIG_IS_ENABLED(OPTEE_IMAGE)
82void __noreturn jump_to_image_optee(struct spl_image_info *spl_image)
83{
84 /* flush and turn off caches before jumping to OPTEE */
85 cleanup_before_linux();
86
87 spl_optee_entry(NULL, NULL, spl_image->fdt_addr,
88 (void *)spl_image->entry_point);
89}
90#endif