u-boot/arch/arm/lib/spl.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

76 lines
2.2 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2010-2012
* Texas Instruments, <www.ti.com>
*
* Aneesh V <aneesh@ti.com>
* Tom Rini <trini@ti.com>
*/
#include <common.h>
#include <config.h>
#include <spl.h>
#include <image.h>
#include <linux/compiler.h>
#include <asm/mach-types.h>
#ifndef CONFIG_SPL_DM
/* Pointer to as well as the global data structure for SPL */
DECLARE_GLOBAL_DATA_PTR;
/*
* WARNING: This is going away very soon. Don't use it and don't submit
* pafches that rely on it. The global_data area is set up in crt0.S.
*/
gd_t gdata __attribute__ ((section(".data")));
#endif
/*
* In the context of SPL, board_init_f() prepares the hardware for execution
* from system RAM (DRAM, DDR...). As system RAM may not be available yet,
* board_init_f() must use the current GD to store any data which must be
* passed on to later stages. These data include the relocation destination,
* the future stack, and the future GD location. BSS is cleared after this
* function (and therefore must be accessible).
*
* We provide this version by default but mark it as __weak to allow for
* platforms to do this in their own way if needed. Please see the top
* level U-Boot README "Board Initialization Flow" section for info on what
* to put in this function.
*/
void __weak board_init_f(ulong dummy)
{
}
/*
* This function jumps to an image with argument. Normally an FDT or ATAGS
* image.
*/
#ifdef CONFIG_SPL_OS_BOOT
#ifdef CONFIG_ARM64
void __noreturn jump_to_image_linux(struct spl_image_info *spl_image)
{
debug("Entering kernel arg pointer: 0x%p\n", spl_image->arg);
cleanup_before_linux();
armv8_switch_to_el2((u64)spl_image->arg, 0, 0, 0,
spl_image->entry_point, ES_TO_AARCH64);
}
#else
void __noreturn jump_to_image_linux(struct spl_image_info *spl_image)
{
unsigned long machid = 0xffffffff;
#ifdef CONFIG_MACH_TYPE
machid = CONFIG_MACH_TYPE;
#endif
debug("Entering kernel arg pointer: 0x%p\n", spl_image->arg);
typedef void (*image_entry_arg_t)(int, int, void *)
__attribute__ ((noreturn));
image_entry_arg_t image_entry =
(image_entry_arg_t)(uintptr_t) spl_image->entry_point;
cleanup_before_linux();
image_entry(0, machid, spl_image->arg);
}
#endif /* CONFIG_ARM64 */
#endif