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85 lines
2.4 KiB
C
85 lines
2.4 KiB
C
/*
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* (C) Copyright 2011 Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
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*
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* Based on microblaze implementation by:
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* (C) Copyright 2007 Michal Simek
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* (C) Copyright 2004 Atmark Techno, Inc.
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*
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* Michal SIMEK <monstr@monstr.eu>
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* Yasushi SHOJI <yashi@atmark-techno.com>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <command.h>
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#include <image.h>
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#include <u-boot/zlib.h>
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#include <asm/byteorder.h>
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DECLARE_GLOBAL_DATA_PTR;
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int do_bootm_linux(int flag, int argc, char * const argv[],
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bootm_headers_t *images)
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{
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void (*kernel) (unsigned int);
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ulong rd_data_start, rd_data_end;
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if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
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return 1;
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int ret;
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char *of_flat_tree = NULL;
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#if defined(CONFIG_OF_LIBFDT)
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/* did generic code already find a device tree? */
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if (images->ft_len)
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of_flat_tree = images->ft_addr;
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#endif
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kernel = (void (*)(unsigned int))images->ep;
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/* find ramdisk */
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ret = boot_get_ramdisk(argc, argv, images, IH_ARCH_OPENRISC,
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&rd_data_start, &rd_data_end);
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if (ret)
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return 1;
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show_boot_progress(15);
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if (!of_flat_tree && argc > 3)
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of_flat_tree = (char *)simple_strtoul(argv[3], NULL, 16);
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#ifdef DEBUG
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printf("## Transferring control to Linux (at address 0x%08lx) " \
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"ramdisk 0x%08lx, FDT 0x%08lx...\n",
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(ulong) kernel, rd_data_start, (ulong) of_flat_tree);
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#endif
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if (dcache_status() || icache_status())
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flush_cache((ulong)kernel, max(checkdcache(), checkicache()));
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/*
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* Linux Kernel Parameters (passing device tree):
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* r3: pointer to the fdt, followed by the board info data
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*/
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kernel((unsigned int) of_flat_tree);
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/* does not return */
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return 1;
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}
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