113 lines
2.6 KiB
C
113 lines
2.6 KiB
C
/*
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* U-boot - bf533_linux.c
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*
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* Copyright (c) 2005-2007 Analog Devices Inc.
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*
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* (C) Copyright 2000-2004
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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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., 51 Franklin St, Fifth Floor, Boston,
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* MA 02110-1301 USA
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*/
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/* Dummy functions, currently not in Use */
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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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#define LINUX_MAX_ENVS 256
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#define LINUX_MAX_ARGS 256
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#define CMD_LINE_ADDR 0xFF900000 /* L1 scratchpad */
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#ifdef SHARED_RESOURCES
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extern void swap_to(int device_id);
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#endif
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extern void flush_instruction_cache(void);
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extern void flush_data_cache(void);
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static char *make_command_line(void);
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void do_bootm_linux(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[],
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bootm_headers_t *images)
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{
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int (*appl) (char *cmdline);
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char *cmdline;
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ulong ep = 0;
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if (!images->autostart)
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return ;
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#ifdef SHARED_RESOURCES
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swap_to(FLASH);
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#endif
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/* find kernel entry point */
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if (images->legacy_hdr_valid) {
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ep = image_get_ep (images->legacy_hdr_os);
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#if defined(CONFIG_FIT)
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} else if (images->fit_uname_os) {
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int ret = fit_image_get_entry (images->fit_hdr_os,
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images->fit_noffset_os, &ep);
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if (ret) {
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puts ("Can't get entry point property!\n");
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goto error;
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}
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#endif
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} else {
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puts ("Could not find kernel entry point!\n");
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goto error;
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}
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appl = (int (*)(char *))ep;
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printf("Starting Kernel at = %x\n", appl);
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cmdline = make_command_line();
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if (icache_status()) {
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flush_instruction_cache();
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icache_disable();
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}
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if (dcache_status()) {
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flush_data_cache();
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dcache_disable();
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}
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(*appl) (cmdline);
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/* does not return */
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return;
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error:
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if (images->autostart)
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do_reset (cmdtp, flag, argc, argv);
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return;
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}
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char *make_command_line(void)
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{
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char *dest = (char *)CMD_LINE_ADDR;
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char *bootargs;
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if ((bootargs = getenv("bootargs")) == NULL)
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return NULL;
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strncpy(dest, bootargs, 0x1000);
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dest[0xfff] = 0;
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return dest;
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}
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