2 * relocate_kernel.S - put the kernel image in place to boot
3 * 2005.9.17 kogiidena@eggplant.ddo.jp
5 * LANDISK/sh4 is supported. Maybe, SH archtecture works well.
7 * This source code is licensed under the GNU General Public License,
8 * Version 2. See the file COPYING for more details.
10 #include <linux/linkage.h>
11 #include <asm/addrspace.h>
14 .globl relocate_new_kernel
16 /* r4 = indirection_page */
17 /* r5 = reboot_code_buffer */
18 /* r6 = start_address */
20 mov.l 10f,r8 /* PAGE_SIZE */
27 mov r4,r0 /* cmd = indirection_page */
29 mov.l @r4+,r0 /* cmd = *ind++ */
31 1: /* addr = cmd & 0xfffffff0 */
36 /* if(cmd & IND_DESTINATION) dst = addr */
42 2: /* else if(cmd & IND_INDIRECTION) ind = addr */
48 3: /* else if(cmd & IND_DONE) goto 6 */
54 4: /* else if(cmd & IND_SOURCE) memcpy(dst,addr,PAGE_SIZE) */
63 mov.l @r2+,r1 /* 16n+0 */
66 mov.l @r2+,r1 /* 16n+4 */
69 mov.l @r2+,r1 /* 16n+8 */
72 mov.l @r2+,r1 /* 16n+12 */
87 relocate_new_kernel_end:
89 .globl relocate_new_kernel_size
90 relocate_new_kernel_size:
91 .long relocate_new_kernel_end - relocate_new_kernel