2 * (C) Copyright 2007 Michal Simek
3 * (C) Copyright 2004 Atmark Techno, Inc.
5 * Michal SIMEK <monstr@monstr.eu>
6 * Yasushi SHOJI <yashi@atmark-techno.com>
8 * See file CREDITS for list of people who contributed to this
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License as
13 * published by the Free Software Foundation; either version 2 of
14 * the License, or (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
30 #include <u-boot/zlib.h>
31 #include <asm/byteorder.h>
33 DECLARE_GLOBAL_DATA_PTR;
35 int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t *images)
37 /* First parameter is mapped to $r5 for kernel boot args */
38 void (*theKernel) (char *, ulong, ulong);
39 char *commandline = getenv ("bootargs");
40 ulong rd_data_start, rd_data_end;
42 if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
47 char *of_flat_tree = NULL;
48 #if defined(CONFIG_OF_LIBFDT)
51 /* find flattened device tree */
52 ret = boot_get_fdt (flag, argc, argv, images, &of_flat_tree, &of_size);
57 theKernel = (void (*)(char *, ulong, ulong))images->ep;
60 ret = boot_get_ramdisk (argc, argv, images, IH_ARCH_MICROBLAZE,
61 &rd_data_start, &rd_data_end);
65 show_boot_progress (15);
67 if (!(ulong) of_flat_tree)
68 of_flat_tree = (char *)simple_strtoul (argv[3], NULL, 16);
71 printf ("## Transferring control to Linux (at address 0x%08lx) " \
72 "ramdisk 0x%08lx, FDT 0x%08lx...\n",
73 (ulong) theKernel, rd_data_start, (ulong) of_flat_tree);
76 #ifdef XILINX_USE_DCACHE
77 #ifdef XILINX_DCACHE_BYTE_SIZE
78 flush_cache(0, XILINX_DCACHE_BYTE_SIZE);
80 #warning please rebuild BSPs and update configuration
81 flush_cache(0, 32768);
85 * Linux Kernel Parameters (passing device tree):
86 * r5: pointer to command line
87 * r6: pointer to ramdisk
88 * r7: pointer to the fdt, followed by the board info data
90 theKernel (commandline, rd_data_start, (ulong) of_flat_tree);