File: spl.c

package info (click to toggle)
u-boot 2014.10%2Bdfsg1-5
  • links: PTS, VCS
  • area: main
  • in suites: jessie, jessie-kfreebsd
  • size: 86,340 kB
  • ctags: 382,377
  • sloc: ansic: 1,071,015; asm: 34,076; perl: 8,007; python: 6,290; makefile: 5,210; sh: 2,297; cpp: 1,826; php: 1,299; yacc: 604; lex: 363; sql: 71; tcl: 28; sed: 14; awk: 6
file content (58 lines) | stat: -rw-r--r-- 1,480 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
/*
 * (C) Copyright 2010-2012
 * Texas Instruments, <www.ti.com>
 *
 * Aneesh V <aneesh@ti.com>
 * Tom Rini <trini@ti.com>
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */
#include <common.h>
#include <config.h>
#include <spl.h>
#include <image.h>
#include <linux/compiler.h>

/* Pointer to as well as the global data structure for SPL */
DECLARE_GLOBAL_DATA_PTR;
gd_t gdata __attribute__ ((section(".data")));

/*
 * In the context of SPL, board_init_f must ensure that any clocks/etc for
 * DDR are enabled, ensure that the stack pointer is valid, clear the BSS
 * and call board_init_f.  We provide this version by default but mark it
 * as __weak to allow for platforms to do this in their own way if needed.
 */
void __weak board_init_f(ulong dummy)
{
	/* Clear the BSS. */
	memset(__bss_start, 0, __bss_end - __bss_start);

	/* Set global data pointer. */
	gd = &gdata;

	board_init_r(NULL, 0);
}

/*
 * This function jumps to an image with argument. Normally an FDT or ATAGS
 * image.
 * arg: Pointer to paramter image in RAM
 */
#ifdef CONFIG_SPL_OS_BOOT
void __noreturn jump_to_image_linux(void *arg)
{
	unsigned long machid = 0xffffffff;
#ifdef CONFIG_MACH_TYPE
	machid = CONFIG_MACH_TYPE;
#endif

	debug("Entering kernel arg pointer: 0x%p\n", arg);
	typedef void (*image_entry_arg_t)(int, int, void *)
		__attribute__ ((noreturn));
	image_entry_arg_t image_entry =
		(image_entry_arg_t) spl_image.entry_point;
	cleanup_before_linux();
	image_entry(0, machid, arg);
}
#endif