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/*
* (C) Copyright 2010-2012
* Texas Instruments, <www.ti.com>
*
* Aneesh V <aneesh@ti.com>
* Tom Rini <trini@ti.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#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)
{
/* Set the stack pointer. */
asm volatile("mov sp, %0\n" : : "r"(CONFIG_SPL_STACK));
/* 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)
{
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, CONFIG_MACH_TYPE, arg);
}
#endif
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