2 # Copyright (C) 2006 Martin Decky
5 # Redistribution and use in source and binary forms, with or without
6 # modification, are permitted provided that the following conditions
9 # - Redistributions of source code must retain the above copyright
10 # notice, this list of conditions and the following disclaimer.
11 # - Redistributions in binary form must reproduce the above copyright
12 # notice, this list of conditions and the following disclaimer in the
13 # documentation and/or other materials provided with the distribution.
14 # - The name of the author may not be used to endorse or promote products
15 # derived from this software without specific prior written permission.
17 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 # IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 # OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 # IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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26 # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
36 .global jump_to_kernel
98 rlwinm. r7, r5, 32-3, 3, 31
110 # r7 = real_mode (pa)
115 rlwinm r31, r31, 0, 17, 15
118 # set real_mode meeting point address
126 ori r30, r30, ~(msr_ir | msr_dr)@l
134 .section REALMODE, "ax"
140 # copy kernel to proper location
145 li r31, PAGE_SIZE >> 2
177 # initially fill segment registers
188 addis r31, r31, 0x1000 # move to next SR
199 lis r31, KERNEL_START_ADDR@ha
200 addi r31, r31, KERNEL_START_ADDR@l
205 ori r31, r31, (msr_ir | msr_dr)@l
215 .space (TRANS_SIZE * TRANS_ITEM_SIZE)