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Tom Rini31dfba42012-08-22 15:31:05 -07001/*
2 * (C) Copyright 2010-2012
3 * Texas Instruments, <www.ti.com>
4 *
5 * Aneesh V <aneesh@ti.com>
6 * Tom Rini <trini@ti.com>
7 *
Wolfgang Denkd79de1d2013-07-08 09:37:19 +02008 * SPDX-License-Identifier: GPL-2.0+
Tom Rini31dfba42012-08-22 15:31:05 -07009 */
York Sunffea3e62017-09-28 08:42:14 -070010
Tom Rini31dfba42012-08-22 15:31:05 -070011#include <common.h>
12#include <config.h>
13#include <spl.h>
14#include <image.h>
15#include <linux/compiler.h>
Simon Glass0ffb9d62017-05-31 19:47:48 -060016#include <asm/mach-types.h>
Tom Rini31dfba42012-08-22 15:31:05 -070017
Tom Rinif295d9e2015-07-31 19:55:10 -040018#ifndef CONFIG_SPL_DM
Tom Rini31dfba42012-08-22 15:31:05 -070019/* Pointer to as well as the global data structure for SPL */
20DECLARE_GLOBAL_DATA_PTR;
Simon Glass37972d82014-12-23 12:04:51 -070021
22/*
23 * WARNING: This is going away very soon. Don't use it and don't submit
24 * pafches that rely on it. The global_data area is set up in crt0.S.
25 */
Tom Rini31dfba42012-08-22 15:31:05 -070026gd_t gdata __attribute__ ((section(".data")));
Simon Glassaeca9cc2015-03-03 08:02:58 -070027#endif
Tom Rini31dfba42012-08-22 15:31:05 -070028
29/*
Jeremy Hunt6402f722016-07-18 12:01:02 -040030 * In the context of SPL, board_init_f() prepares the hardware for execution
31 * from system RAM (DRAM, DDR...). As system RAM may not be available yet,
32 * board_init_f() must use the current GD to store any data which must be
33 * passed on to later stages. These data include the relocation destination,
34 * the future stack, and the future GD location. BSS is cleared after this
35 * function (and therefore must be accessible).
36 *
37 * We provide this version by default but mark it as __weak to allow for
38 * platforms to do this in their own way if needed. Please see the top
39 * level U-Boot README "Board Initialization Flow" section for info on what
40 * to put in this function.
Tom Rini31dfba42012-08-22 15:31:05 -070041 */
42void __weak board_init_f(ulong dummy)
43{
Tom Rini31dfba42012-08-22 15:31:05 -070044}
45
46/*
47 * This function jumps to an image with argument. Normally an FDT or ATAGS
48 * image.
Tom Rini31dfba42012-08-22 15:31:05 -070049 */
50#ifdef CONFIG_SPL_OS_BOOT
York Sunffea3e62017-09-28 08:42:14 -070051#ifdef CONFIG_ARM64
52void __noreturn jump_to_image_linux(struct spl_image_info *spl_image)
53{
54 debug("Entering kernel arg pointer: 0x%p\n", spl_image->arg);
55 cleanup_before_linux();
56 armv8_switch_to_el2((u64)spl_image->arg, 0, 0, 0,
57 spl_image->entry_point, ES_TO_AARCH64);
58}
59#else
Vikas Manocha62b021c2017-04-07 15:38:13 -070060void __noreturn jump_to_image_linux(struct spl_image_info *spl_image)
Tom Rini31dfba42012-08-22 15:31:05 -070061{
Tom Rinic7aed9b2013-08-09 11:22:15 -040062 unsigned long machid = 0xffffffff;
63#ifdef CONFIG_MACH_TYPE
64 machid = CONFIG_MACH_TYPE;
65#endif
66
Vikas Manocha62b021c2017-04-07 15:38:13 -070067 debug("Entering kernel arg pointer: 0x%p\n", spl_image->arg);
Tom Rini31dfba42012-08-22 15:31:05 -070068 typedef void (*image_entry_arg_t)(int, int, void *)
69 __attribute__ ((noreturn));
70 image_entry_arg_t image_entry =
Simon Glassb805c352016-09-24 18:19:54 -060071 (image_entry_arg_t)(uintptr_t) spl_image->entry_point;
Tom Rini31dfba42012-08-22 15:31:05 -070072 cleanup_before_linux();
Vikas Manocha62b021c2017-04-07 15:38:13 -070073 image_entry(0, machid, spl_image->arg);
Tom Rini31dfba42012-08-22 15:31:05 -070074}
York Sunffea3e62017-09-28 08:42:14 -070075#endif /* CONFIG_ARM64 */
Tom Rini31dfba42012-08-22 15:31:05 -070076#endif