upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
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142 lines
3.5 KiB
142 lines
3.5 KiB
/*
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* (C) Copyright 2002
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* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
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* Marius Groeger <mgroeger@sysgo.de>
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*
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* Copyright (C) 2001 Erik Mouw (J.A.K.Mouw@its.tudelft.nl)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (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, MA 02111-1307 USA
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*
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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 <zlib.h>
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#include <asm/byteorder.h>
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#include <asm/zimage.h>
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/*cmd_boot.c*/
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extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
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void do_bootm_linux(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
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image_header_t *hdr, int verify)
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{
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void *base_ptr;
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ulong os_data, os_len;
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ulong rd_data, rd_len;
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ulong initrd_start, initrd_end;
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image_header_t *rd_hdr;
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/*
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* Check if there is an initrd image
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*/
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if (argc >= 3) {
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rd_hdr = (image_header_t *)simple_strtoul (argv[2], NULL, 16);
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printf ("## Loading Ramdisk Image at %08lx ...\n", rd_hdr);
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if (!image_check_magic (rd_hdr)) {
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printf ("Bad Magic Number\n");
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do_reset (cmdtp, flag, argc, argv);
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}
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if (!image_check_hcrc (rd_hdr)) {
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printf ("Bad Header Checksum\n");
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do_reset (cmdtp, flag, argc, argv);
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}
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print_image_hdr (rd_hdr);
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rd_data = image_get_data (rd_hdr);
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rd_len = image_get_data_size (rd_hdr);
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if (verify) {
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printf (" Verifying Checksum ... ");
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if (!image_check_dcrc (rd_hdr)) {
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printf ("Bad Data CRC\n");
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do_reset (cmdtp, flag, argc, argv);
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}
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printf ("OK\n");
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}
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if (!image_check_os (rd_hdr, IH_OS_LINUX) ||
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!image_check_arch (rd_hdr, IH_ARCH_I386) ||
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!image_check_type (rd_hdr, IH_TYPE_RAMDISK)) {
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printf ("No Linux i386 Ramdisk Image\n");
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do_reset (cmdtp, flag, argc, argv);
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}
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/*
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* Now check if we have a multifile image
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*/
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} else if (image_check_type (hdr, IH_TYPE_MULTI)) {
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/*
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* Get second entry data start address and len
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*/
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image_multi_getimg (hdr, 1, &rd_data, &rd_len);
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} else {
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/*
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* no initrd image
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*/
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rd_data = rd_len = 0;
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}
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#ifdef DEBUG
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if (!rd_data) {
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printf ("No initrd\n");
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}
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#endif
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if (rd_data) {
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initrd_start = rd_data;
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initrd_end = initrd_start + rd_len;
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printf (" Loading Ramdisk to %08lx, end %08lx ... ",
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initrd_start, initrd_end);
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memmove ((void *)initrd_start, (void *)rd_data, rd_len);
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printf ("OK\n");
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} else {
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initrd_start = 0;
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initrd_end = 0;
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}
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/* if multi-part image, we need to advance base ptr */
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if (image_check_type (hdr, IH_TYPE_MULTI)) {
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image_multi_getimg (hdr, 0, &os_data, &os_len);
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} else {
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os_data = image_get_data (hdr);
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os_len = image_get_data_size (hdr);
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}
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base_ptr = load_zimage ((void*)os_data, os_len,
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initrd_start, rd_len, 0);
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if (NULL == base_ptr) {
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printf ("## Kernel loading failed ...\n");
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do_reset(cmdtp, flag, argc, argv);
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}
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#ifdef DEBUG
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printf ("## Transferring control to Linux (at address %08x) ...\n",
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(u32)base_ptr);
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#endif
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/* we assume that the kernel is in place */
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printf("\nStarting kernel ...\n\n");
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boot_zimage(base_ptr);
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}
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