1/*
 2 *  PS3 bootwrapper entry.
 3 *
 4 *  Copyright (C) 2007 Sony Computer Entertainment Inc.
 5 *  Copyright 2007 Sony Corp.
 6 *
 7 *  This program is free software; you can redistribute it and/or modify
 8 *  it under the terms of the GNU General Public License as published by
 9 *  the Free Software Foundation; version 2 of the License.
10 *
11 *  This program is distributed in the hope that it will be useful,
12 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
13 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14 *  GNU General Public License for more details.
15 *
16 *  You should have received a copy of the GNU General Public License
17 *  along with this program; if not, write to the Free Software
18 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
19 */
20
21#include "ppc_asm.h"
22
23	.machine "ppc64"
24
25	.text
26
27/*
28 * __system_reset_overlay - The PS3 first stage entry.
29 *
30 * The bootwraper build script copies the 512 bytes at symbol
31 * __system_reset_overlay to offset 0x100 of the rom image.  This symbol
32 * must occupy 512 or less bytes.
33 *
34 * The PS3 has a single processor with two threads.
35 */
36
37	.globl __system_reset_overlay
38__system_reset_overlay:
39
40	/* Switch to 32-bit mode. */
41
42	mfmsr	r9
43	clrldi	r9,r9,1
44	mtmsrd	r9
45	nop
46
47	/* Get thread number in r3 and branch. */
48
49	mfspr	r3, 0x88
50	cntlzw.	r3, r3
51	beq	1f
52
53	/* Secondary goes to __secondary_hold in kernel. */
54
55	li	r4, 0x60
56	mtctr	r4
57	bctr
58
591:
60	/* Primary delays then goes to _zimage_start in wrapper. */
61
62	or	31, 31, 31 /* db16cyc */
63	or	31, 31, 31 /* db16cyc */
64
65	lis	r4, _zimage_start@ha
66	addi	r4, r4, _zimage_start@l
67	mtctr	r4
68	bctr
69
70	. = __system_reset_overlay + 512
71
72/*
73 * __system_reset_kernel - Place holder for the kernel reset vector.
74 *
75 * The bootwrapper build script copies 512 bytes from offset 0x100
76 * of the rom image to the symbol __system_reset_kernel.  At runtime
77 * the bootwrapper program copies the 512 bytes at __system_reset_kernel
78 * to ram address 0x100.  This symbol must occupy 512 bytes.
79 */
80
81	.globl __system_reset_kernel
82__system_reset_kernel:
83
84	. = __system_reset_kernel + 512

 1/* SPDX-License-Identifier: GPL-2.0-only */
 2/*
 3 *  PS3 bootwrapper entry.
 4 *
 5 *  Copyright (C) 2007 Sony Computer Entertainment Inc.
 6 *  Copyright 2007 Sony Corp.
 
 
 
 
 
 
 
 
 
 
 
 
 
 7 */
 8
 9#include "ppc_asm.h"
10
11	.machine "ppc64"
12
13	.text
14
15/*
16 * __system_reset_overlay - The PS3 first stage entry.
17 *
18 * The bootwraper build script copies the 512 bytes at symbol
19 * __system_reset_overlay to offset 0x100 of the rom image.  This symbol
20 * must occupy 512 or less bytes.
21 *
22 * The PS3 has a single processor with two threads.
23 */
24
25	.globl __system_reset_overlay
26__system_reset_overlay:
27
28	/* Switch to 32-bit mode. */
29
30	mfmsr	r9
31	clrldi	r9,r9,1
32	mtmsrd	r9
33	nop
34
35	/* Get thread number in r3 and branch. */
36
37	mfspr	r3, 0x88
38	cntlzw.	r3, r3
39	beq	1f
40
41	/* Secondary goes to __secondary_hold in kernel. */
42
43	li	r4, 0x60
44	mtctr	r4
45	bctr
46
471:
48	/* Primary delays then goes to _zimage_start in wrapper. */
49
50	or	31, 31, 31 /* db16cyc */
51	or	31, 31, 31 /* db16cyc */
52
53	lis	r4, _zimage_start@ha
54	addi	r4, r4, _zimage_start@l
55	mtctr	r4
56	bctr
57
58	. = __system_reset_overlay + 512
59
60/*
61 * __system_reset_kernel - Place holder for the kernel reset vector.
62 *
63 * The bootwrapper build script copies 512 bytes from offset 0x100
64 * of the rom image to the symbol __system_reset_kernel.  At runtime
65 * the bootwrapper program copies the 512 bytes at __system_reset_kernel
66 * to ram address 0x100.  This symbol must occupy 512 bytes.
67 */
68
69	.globl __system_reset_kernel
70__system_reset_kernel:
71
72	. = __system_reset_kernel + 512