mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-02 17:41:08 +00:00
85 lines
2.4 KiB
C
85 lines
2.4 KiB
C
|
/*
|
||
|
|
* (C) Copyright 2011 Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
|
||
|
|
*
|
||
|
|
* Based on microblaze implementation by:
|
||
|
|
* (C) Copyright 2007 Michal Simek
|
||
|
|
* (C) Copyright 2004 Atmark Techno, Inc.
|
||
|
|
*
|
||
|
|
* Michal SIMEK <monstr@monstr.eu>
|
||
|
|
* Yasushi SHOJI <yashi@atmark-techno.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 <command.h>
|
||
|
|
#include <image.h>
|
||
|
|
#include <u-boot/zlib.h>
|
||
|
|
#include <asm/byteorder.h>
|
||
|
|
|
||
|
|
DECLARE_GLOBAL_DATA_PTR;
|
||
|
|
|
||
|
|
int do_bootm_linux(int flag, int argc, char * const argv[],
|
||
|
|
bootm_headers_t *images)
|
||
|
|
{
|
||
|
|
void (*kernel) (unsigned int);
|
||
|
|
ulong rd_data_start, rd_data_end;
|
||
|
|
|
||
|
|
if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
|
||
|
|
return 1;
|
||
|
|
|
||
|
|
int ret;
|
||
|
|
|
||
|
|
char *of_flat_tree = NULL;
|
||
|
|
#if defined(CONFIG_OF_LIBFDT)
|
||
|
|
/* did generic code already find a device tree? */
|
||
|
|
if (images->ft_len)
|
||
|
|
of_flat_tree = images->ft_addr;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
kernel = (void (*)(unsigned int))images->ep;
|
||
|
|
|
||
|
|
/* find ramdisk */
|
||
|
|
ret = boot_get_ramdisk(argc, argv, images, IH_ARCH_OPENRISC,
|
||
|
|
&rd_data_start, &rd_data_end);
|
||
|
|
if (ret)
|
||
|
|
return 1;
|
||
|
|
|
||
|
|
show_boot_progress(15);
|
||
|
|
|
||
|
|
if (!of_flat_tree && argc > 3)
|
||
|
|
of_flat_tree = (char *)simple_strtoul(argv[3], NULL, 16);
|
||
|
|
#ifdef DEBUG
|
||
|
|
printf("## Transferring control to Linux (at address 0x%08lx) " \
|
||
|
|
"ramdisk 0x%08lx, FDT 0x%08lx...\n",
|
||
|
|
(ulong) kernel, rd_data_start, (ulong) of_flat_tree);
|
||
|
|
#endif
|
||
|
|
if (dcache_status() || icache_status())
|
||
|
|
flush_cache((ulong)kernel, max(checkdcache(), checkicache()));
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Linux Kernel Parameters (passing device tree):
|
||
|
|
* r3: pointer to the fdt, followed by the board info data
|
||
|
|
*/
|
||
|
|
kernel((unsigned int) of_flat_tree);
|
||
|
|
/* does not return */
|
||
|
|
|
||
|
|
return 1;
|
||
|
|
}
|