| /* |
| * (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 |
