1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
|
/*
* Copyright 2004 Freescale Semiconductor.
* Jeff Brown
* Srikanth Srinivasan (srikanth.srinivasan@freescale.com)
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <ppc_asm.tmpl>
#include <ppc_defs.h>
#include <asm/cache.h>
#include <asm/mmu.h>
#include <config.h>
#include <mpc86xx.h>
/*
* LAW(Local Access Window) configuration:
*
* 0x0000_0000 0x7fff_ffff DDR 2G
* 0x8000_0000 0x9fff_ffff PCI1 MEM 512M
* 0xa000_0000 0xbfff_ffff PCI2 MEM 512M
* 0xc000_0000 0xdfff_ffff RapidIO 512M
* 0xe200_0000 0xe2ff_ffff PCI1 IO 16M
* 0xe300_0000 0xe3ff_ffff PCI2 IO 16M
* 0xf800_0000 0xf80f_ffff CCSRBAR 1M
* 0xf810_0000 0xf81f_ffff PIXIS 1M
* 0xfe00_0000 0xffff_ffff FLASH (boot bank) 32M
*
* Notes:
* CCSRBAR don't need a configured Local Access Window.
* If flash is 8M at default position (last 8M), no LAW needed.
*/
#if !defined(CONFIG_SPD_EEPROM)
#define LAWBAR1 ((CFG_DDR_SDRAM_BASE>>12) & 0xffffff)
#define LAWAR1 (LAWAR_EN | LAWAR_TRGT_IF_DDR1 | (LAWAR_SIZE & LAWAR_SIZE_256M))
#else
#define LAWBAR1 0
#define LAWAR1 ((LAWAR_TRGT_IF_DDR1 | (LAWAR_SIZE & LAWAR_SIZE_512M)) & ~LAWAR_EN)
#endif
#define LAWBAR2 ((CFG_PCI1_MEM_BASE>>12) & 0xffffff)
#define LAWAR2 (LAWAR_EN | LAWAR_TRGT_IF_PCI1 | (LAWAR_SIZE & LAWAR_SIZE_512M))
#define LAWBAR3 ((CFG_PCI2_MEM_BASE>>12) & 0xffffff)
#define LAWAR3 (~LAWAR_EN & (LAWAR_TRGT_IF_PCI2 | (LAWAR_SIZE & LAWAR_SIZE_512M)))
/*
* This is not so much the SDRAM map as it is the whole localbus map.
*/
#define LAWBAR4 ((0xf8100000>>12) & 0xffffff)
#define LAWAR4 (LAWAR_EN | LAWAR_TRGT_IF_LBC | (LAWAR_SIZE & LAWAR_SIZE_2M))
#define LAWBAR5 ((CFG_PCI1_IO_BASE>>12) & 0xffffff)
#define LAWAR5 (LAWAR_EN | LAWAR_TRGT_IF_PCI1 | (LAWAR_SIZE & LAWAR_SIZE_16M))
#define LAWBAR6 ((CFG_PCI2_IO_BASE>>12) & 0xffffff)
#define LAWAR6 (~LAWAR_EN &( LAWAR_TRGT_IF_PCI2 | (LAWAR_SIZE & LAWAR_SIZE_16M)))
#define LAWBAR7 ((0xfe000000 >>12) & 0xffffff)
#define LAWAR7 (LAWAR_EN | LAWAR_TRGT_IF_LBC | (LAWAR_SIZE & LAWAR_SIZE_32M))
#if !defined(CONFIG_SPD_EEPROM)
#define LAWBAR8 ((CFG_DDR_SDRAM_BASE>>12) & 0xffffff)
#define LAWAR8 (LAWAR_EN | LAWAR_TRGT_IF_DDR2 | (LAWAR_SIZE & LAWAR_SIZE_256M))
#else
#define LAWBAR8 0
#define LAWAR8 ((LAWAR_TRGT_IF_DDR2 | (LAWAR_SIZE & LAWAR_SIZE_512M)) & ~LAWAR_EN)
#endif
#define LAWBAR9 ((CFG_RIO_MEM_BASE>>12) & 0xfffff)
#define LAWAR9 (LAWAR_EN | LAWAR_TRGT_IF_RIO | (LAWAR_SIZE & LAWAR_SIZE_512M))
.section .bootpg, "ax"
.globl law_entry
law_entry:
lis r7,CFG_CCSRBAR@h
ori r7,r7,CFG_CCSRBAR@l
addi r4,r7,0
addi r5,r7,0
/* Skip LAWAR0, start at LAWAR1 */
lis r6,LAWBAR1@h
ori r6,r6,LAWBAR1@l
stwu r6, 0xc28(r4)
lis r6,LAWAR1@h
ori r6,r6,LAWAR1@l
stwu r6, 0xc30(r5)
/* LAWBAR2, LAWAR2 */
lis r6,LAWBAR2@h
ori r6,r6,LAWBAR2@l
stwu r6, 0x20(r4)
lis r6,LAWAR2@h
ori r6,r6,LAWAR2@l
stwu r6, 0x20(r5)
/* LAWBAR3, LAWAR3 */
lis r6,LAWBAR3@h
ori r6,r6,LAWBAR3@l
stwu r6, 0x20(r4)
lis r6,LAWAR3@h
ori r6,r6,LAWAR3@l
stwu r6, 0x20(r5)
/* LAWBAR4, LAWAR4 */
lis r6,LAWBAR4@h
ori r6,r6,LAWBAR4@l
stwu r6, 0x20(r4)
lis r6,LAWAR4@h
ori r6,r6,LAWAR4@l
stwu r6, 0x20(r5)
/* LAWBAR5, LAWAR5 */
lis r6,LAWBAR5@h
ori r6,r6,LAWBAR5@l
stwu r6, 0x20(r4)
lis r6,LAWAR5@h
ori r6,r6,LAWAR5@l
stwu r6, 0x20(r5)
/* LAWBAR6, LAWAR6 */
lis r6,LAWBAR6@h
ori r6,r6,LAWBAR6@l
stwu r6, 0x20(r4)
lis r6,LAWAR6@h
ori r6,r6,LAWAR6@l
stwu r6, 0x20(r5)
/* LAWBAR7, LAWAR7 */
lis r6,LAWBAR7@h
ori r6,r6,LAWBAR7@l
stwu r6, 0x20(r4)
lis r6,LAWAR7@h
ori r6,r6,LAWAR7@l
stwu r6, 0x20(r5)
/* LAWBAR8, LAWAR8 */
lis r6,LAWBAR8@h
ori r6,r6,LAWBAR8@l
stwu r6, 0x20(r4)
lis r6,LAWAR8@h
ori r6,r6,LAWAR8@l
stwu r6, 0x20(r5)
/* LAWBAR9, LAWAR9 */
lis r6,LAWBAR9@h
ori r6,r6,LAWBAR9@l
stwu r6, 0x20(r4)
lis r6,LAWAR9@h
ori r6,r6,LAWAR9@l
stwu r6, 0x20(r5)
blr
|
