blob: 34ca711bde45a4195cf2dc3b90a96edc0e0c6e0b [file] [log] [blame]
Jon Loeligerd9b94f22005-07-25 14:05:07 -05001/*
2 * Copyright 2004 Freescale Semiconductor.
3 * Copyright 2002,2003, Motorola Inc.
4 *
5 * See file CREDITS for list of people who contributed to this
6 * project.
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21 * MA 02111-1307 USA
22 */
23
24#include <ppc_asm.tmpl>
25#include <ppc_defs.h>
26#include <asm/cache.h>
27#include <asm/mmu.h>
28#include <config.h>
29#include <mpc85xx.h>
30
31
32/*
33 * TLB0 and TLB1 Entries
34 *
35 * Out of reset, TLB1's Entry 0 maps the highest 4K for CCSRBAR.
36 * However, CCSRBAR is then relocated to CFG_CCSRBAR right after
37 * these TLB entries are established.
38 *
39 * The TLB entries for DDR are dynamically setup in spd_sdram()
40 * and use TLB1 Entries 8 through 15 as needed according to the
41 * size of DDR memory.
42 *
43 * MAS0: tlbsel, esel, nv
44 * MAS1: valid, iprot, tid, ts, tsize
45 * MAS2: epn, sharen, x0, x1, w, i, m, g, e
46 * MAS3: rpn, u0-u3, ux, sx, uw, sw, ur, sr
47 */
48
49#define entry_start \
50 mflr r1 ; \
51 bl 0f ;
52
53#define entry_end \
540: mflr r0 ; \
55 mtlr r1 ; \
56 blr ;
57
58
59 .section .bootpg, "ax"
60 .globl tlb1_entry
61tlb1_entry:
62 entry_start
63
64 /*
65 * Number of TLB0 and TLB1 entries in the following table
66 */
Zang Roy-r6191141fb7e02006-12-14 14:14:55 +080067 .long (2f-1f)/16
Jon Loeligerd9b94f22005-07-25 14:05:07 -050068
Zang Roy-r6191141fb7e02006-12-14 14:14:55 +0800691:
Jon Loeligerd9b94f22005-07-25 14:05:07 -050070#if (CFG_CCSRBAR_DEFAULT != CFG_CCSRBAR)
71 /*
72 * TLB0 4K Non-cacheable, guarded
73 * 0xff700000 4K Initial CCSRBAR mapping
74 *
75 * This ends up at a TLB0 Index==0 entry, and must not collide
76 * with other TLB0 Entries.
77 */
78 .long TLB1_MAS0(0, 0, 0)
79 .long TLB1_MAS1(1, 0, 0, 0, 0)
80 .long TLB1_MAS2(E500_TLB_EPN(CFG_CCSRBAR_DEFAULT), 0,0,0,0,1,0,1,0)
81 .long TLB1_MAS3(E500_TLB_RPN(CFG_CCSRBAR_DEFAULT), 0,0,0,0,0,1,0,1,0,1)
82#else
83#error("Update the number of table entries in tlb1_entry")
84#endif
85
86 /*
87 * TLB0 16K Cacheable, non-guarded
88 * 0xd001_0000 16K Temporary Global data for initialization
89 *
90 * Use four 4K TLB0 entries. These entries must be cacheable
91 * as they provide the bootstrap memory before the memory
92 * controler and real memory have been configured.
93 *
94 * These entries end up at TLB0 Indicies 0x10, 0x14, 0x18 and 0x1c,
95 * and must not collide with other TLB0 entries.
96 */
97 .long TLB1_MAS0(0, 0, 0)
98 .long TLB1_MAS1(1, 0, 0, 0, 0)
99 .long TLB1_MAS2(E500_TLB_EPN(CFG_INIT_RAM_ADDR),
100 0,0,0,0,0,0,0,0)
101 .long TLB1_MAS3(E500_TLB_RPN(CFG_INIT_RAM_ADDR),
102 0,0,0,0,0,1,0,1,0,1)
103
104 .long TLB1_MAS0(0, 0, 0)
105 .long TLB1_MAS1(1, 0, 0, 0, 0)
106 .long TLB1_MAS2(E500_TLB_EPN(CFG_INIT_RAM_ADDR + 4 * 1024),
107 0,0,0,0,0,0,0,0)
108 .long TLB1_MAS3(E500_TLB_RPN(CFG_INIT_RAM_ADDR + 4 * 1024),
109 0,0,0,0,0,1,0,1,0,1)
110
111 .long TLB1_MAS0(0, 0, 0)
112 .long TLB1_MAS1(1, 0, 0, 0, 0)
113 .long TLB1_MAS2(E500_TLB_EPN(CFG_INIT_RAM_ADDR + 8 * 1024),
114 0,0,0,0,0,0,0,0)
115 .long TLB1_MAS3(E500_TLB_RPN(CFG_INIT_RAM_ADDR + 8 * 1024),
116 0,0,0,0,0,1,0,1,0,1)
117
118 .long TLB1_MAS0(0, 0, 0)
119 .long TLB1_MAS1(1, 0, 0, 0, 0)
120 .long TLB1_MAS2(E500_TLB_EPN(CFG_INIT_RAM_ADDR + 12 * 1024),
121 0,0,0,0,0,0,0,0)
122 .long TLB1_MAS3(E500_TLB_RPN(CFG_INIT_RAM_ADDR + 12 * 1024),
123 0,0,0,0,0,1,0,1,0,1)
124
125
126 /*
127 * TLB 0: 16M Non-cacheable, guarded
128 * 0xff000000 16M FLASH
129 * Out of reset this entry is only 4K.
130 */
131 .long TLB1_MAS0(1, 0, 0)
132 .long TLB1_MAS1(1, 1, 0, 0, BOOKE_PAGESZ_16M)
133 .long TLB1_MAS2(E500_TLB_EPN(CFG_FLASH_BASE), 0,0,0,0,1,0,1,0)
134 .long TLB1_MAS3(E500_TLB_RPN(CFG_FLASH_BASE), 0,0,0,0,0,1,0,1,0,1)
135
136 /*
137 * TLB 1: 256M Non-cacheable, guarded
Zang Roy-r6191141fb7e02006-12-14 14:14:55 +0800138 * 0x80000000 256M PCI1 MEM
Jon Loeligerd9b94f22005-07-25 14:05:07 -0500139 */
140 .long TLB1_MAS0(1, 1, 0)
141 .long TLB1_MAS1(1, 1, 0, 0, BOOKE_PAGESZ_256M)
142 .long TLB1_MAS2(E500_TLB_EPN(CFG_PCI1_MEM_BASE), 0,0,0,0,1,0,1,0)
143 .long TLB1_MAS3(E500_TLB_RPN(CFG_PCI1_MEM_BASE), 0,0,0,0,0,1,0,1,0,1)
144
145 /*
146 * TLB 2: 256M Non-cacheable, guarded
Zang Roy-r6191141fb7e02006-12-14 14:14:55 +0800147 * 0x90000000 256M PCI2 MEM
Jon Loeligerd9b94f22005-07-25 14:05:07 -0500148 */
149 .long TLB1_MAS0(1, 2, 0)
150 .long TLB1_MAS1(1, 1, 0, 0, BOOKE_PAGESZ_256M)
Zang Roy-r6191141fb7e02006-12-14 14:14:55 +0800151 .long TLB1_MAS2(E500_TLB_EPN(CFG_PCI2_MEM_BASE),
Jon Loeligerd9b94f22005-07-25 14:05:07 -0500152 0,0,0,0,1,0,1,0)
Zang Roy-r6191141fb7e02006-12-14 14:14:55 +0800153 .long TLB1_MAS3(E500_TLB_RPN(CFG_PCI2_MEM_BASE),
Jon Loeligerd9b94f22005-07-25 14:05:07 -0500154 0,0,0,0,0,1,0,1,0,1)
155
156 /*
Zang Roy-r6191141fb7e02006-12-14 14:14:55 +0800157 * TLB 3: 1GB Non-cacheable, guarded
158 * 0xa0000000 256M PEX MEM First half
159 * 0xb0000000 256M PEX MEM Second half
160 * 0xc0000000 256M Rapid IO MEM First half
161 * 0xd0000000 256M Rapid IO MEM Second half
Jon Loeligerd9b94f22005-07-25 14:05:07 -0500162 */
163 .long TLB1_MAS0(1, 3, 0)
Andy Fleming45cef612007-02-23 17:11:16 -0600164 .long TLB1_MAS1(1, 1, 0, 0, BOOKE_PAGESZ_1G)
Zang Roy-r6191141fb7e02006-12-14 14:14:55 +0800165 .long TLB1_MAS2(E500_TLB_EPN(CFG_PEX_MEM_BASE), 0,0,0,0,1,0,1,0)
166 .long TLB1_MAS3(E500_TLB_RPN(CFG_PEX_MEM_BASE), 0,0,0,0,0,1,0,1,0,1)
Jon Loeligerd9b94f22005-07-25 14:05:07 -0500167
168 /*
Zang Roy-r6191141fb7e02006-12-14 14:14:55 +0800169 * TLB 4: Reserved for future usage
Jon Loeligerd9b94f22005-07-25 14:05:07 -0500170 */
Jon Loeligerd9b94f22005-07-25 14:05:07 -0500171
172 /*
173 * TLB 5: 64M Non-cacheable, guarded
174 * 0xe000_0000 1M CCSRBAR
Zang Roy-r6191141fb7e02006-12-14 14:14:55 +0800175 * 0xe200_0000 8M PCI1 IO
176 * 0xe280_0000 8M PCI2 IO
177 * 0xe300_0000 16M PEX IO
Jon Loeligerd9b94f22005-07-25 14:05:07 -0500178 */
179 .long TLB1_MAS0(1, 5, 0)
180 .long TLB1_MAS1(1, 1, 0, 0, BOOKE_PAGESZ_64M)
181 .long TLB1_MAS2(E500_TLB_EPN(CFG_CCSRBAR), 0,0,0,0,1,0,1,0)
182 .long TLB1_MAS3(E500_TLB_RPN(CFG_CCSRBAR), 0,0,0,0,0,1,0,1,0,1)
183
184 /*
185 * TLB 6: 64M Cacheable, non-guarded
186 * 0xf000_0000 64M LBC SDRAM
187 */
188 .long TLB1_MAS0(1, 6, 0)
189 .long TLB1_MAS1(1, 1, 0, 0, BOOKE_PAGESZ_64M)
190 .long TLB1_MAS2(E500_TLB_EPN(CFG_LBC_SDRAM_BASE), 0,0,0,0,0,0,0,0)
191 .long TLB1_MAS3(E500_TLB_RPN(CFG_LBC_SDRAM_BASE), 0,0,0,0,0,1,0,1,0,1)
192
193 /*
194 * TLB 7: 1M Non-cacheable, guarded
195 * 0xf8000000 1M CADMUS registers
196 */
197 .long TLB1_MAS0(1, 7, 0)
198 .long TLB1_MAS1(1, 1, 0, 0, BOOKE_PAGESZ_1M)
199 .long TLB1_MAS2(E500_TLB_EPN(CADMUS_BASE_ADDR), 0,0,0,0,1,0,1,0)
200 .long TLB1_MAS3(E500_TLB_RPN(CADMUS_BASE_ADDR), 0,0,0,0,0,1,0,1,0,1)
Zang Roy-r6191141fb7e02006-12-14 14:14:55 +08002012:
Jon Loeligerd9b94f22005-07-25 14:05:07 -0500202 entry_end
203
204/*
205 * LAW(Local Access Window) configuration:
206 *
207 * 0x0000_0000 0x7fff_ffff DDR 2G
Zang Roy-r6191141fb7e02006-12-14 14:14:55 +0800208 * 0x8000_0000 0x8fff_ffff PCI1 MEM 256M
209 * 0x9000_0000 0x9fff_ffff PCI2 MEM 256M
210 * 0xa000_0000 0xbfff_ffff PEX MEM 512M
211 * 0xc000_0000 0xdfff_ffff RapidIO 512M
Jon Loeligerd9b94f22005-07-25 14:05:07 -0500212 * 0xe000_0000 0xe000_ffff CCSR 1M
Zang Roy-r6191141fb7e02006-12-14 14:14:55 +0800213 * 0xe200_0000 0xe27f_ffff PCI1 IO 8M
214 * 0xe280_0000 0xe2ff_ffff PCI2 IO 8M
215 * 0xe300_0000 0xe3ff_ffff PEX IO 16M
216 * 0xf000_0000 0xf3ff_ffff SDRAM 64M
Jon Loeligerd9b94f22005-07-25 14:05:07 -0500217 * 0xf800_0000 0xf80f_ffff NVRAM/CADMUS (*) 1M
218 * 0xff00_0000 0xff7f_ffff FLASH (2nd bank) 8M
219 * 0xff80_0000 0xffff_ffff FLASH (boot bank) 8M
220 *
221 * Notes:
222 * CCSRBAR and L2-as-SRAM don't need a configured Local Access Window.
223 * If flash is 8M at default position (last 8M), no LAW needed.
224 *
225 * The defines below are 1-off of the actual LAWAR0 usage.
226 * So LAWAR3 define uses the LAWAR4 register in the ECM.
227 */
228
229#define LAWBAR0 0
230#define LAWAR0 ((LAWAR_TRGT_IF_DDR | (LAWAR_SIZE & LAWAR_SIZE_128M)) & ~LAWAR_EN)
231
232#define LAWBAR1 ((CFG_PCI1_MEM_BASE>>12) & 0xfffff)
Zang Roy-r6191141fb7e02006-12-14 14:14:55 +0800233#define LAWAR1 (LAWAR_EN | LAWAR_TRGT_IF_PCI1 | (LAWAR_SIZE & LAWAR_SIZE_256M))
Jon Loeligerd9b94f22005-07-25 14:05:07 -0500234
235#define LAWBAR2 ((CFG_PCI2_MEM_BASE>>12) & 0xfffff)
Zang Roy-r6191141fb7e02006-12-14 14:14:55 +0800236#define LAWAR2 (LAWAR_EN | LAWAR_TRGT_IF_PCI2 | (LAWAR_SIZE & LAWAR_SIZE_256M))
Jon Loeligerd9b94f22005-07-25 14:05:07 -0500237
Matthew McClintockcbfc7ce2006-06-28 10:46:13 -0500238#define LAWBAR3 ((CFG_PCI1_IO_PHYS>>12) & 0xfffff)
Zang Roy-r6191141fb7e02006-12-14 14:14:55 +0800239#define LAWAR3 (LAWAR_EN | LAWAR_TRGT_IF_PCI1 | (LAWAR_SIZE & LAWAR_SIZE_8M))
Jon Loeligerd9b94f22005-07-25 14:05:07 -0500240
Matthew McClintockcbfc7ce2006-06-28 10:46:13 -0500241#define LAWBAR4 ((CFG_PCI2_IO_PHYS>>12) & 0xfffff)
Zang Roy-r6191141fb7e02006-12-14 14:14:55 +0800242#define LAWAR4 (LAWAR_EN | LAWAR_TRGT_IF_PCI2 | (LAWAR_SIZE & LAWAR_SIZE_8M))
Jon Loeligerd9b94f22005-07-25 14:05:07 -0500243
244/* LBC window - maps 256M 0xf0000000 -> 0xffffffff */
245#define LAWBAR5 ((CFG_LBC_SDRAM_BASE>>12) & 0xfffff)
246#define LAWAR5 (LAWAR_EN | LAWAR_TRGT_IF_LBC | (LAWAR_SIZE & LAWAR_SIZE_256M))
247
Zang Roy-r6191141fb7e02006-12-14 14:14:55 +0800248#define LAWBAR6 ((CFG_PEX_MEM_BASE>>12) & 0xfffff)
249#define LAWAR6 (LAWAR_EN | LAWAR_TRGT_IF_PEX | (LAWAR_SIZE & LAWAR_SIZE_512M))
250
251#define LAWBAR7 ((CFG_PEX_IO_BASE>>12) & 0xfffff)
252#define LAWAR7 (LAWAR_EN | LAWAR_TRGT_IF_PEX | (LAWAR_SIZE & LAWAR_SIZE_16M))
253
254#define LAWBAR8 ((CFG_RIO_MEM_BASE>>12) & 0xfffff)
255#define LAWAR8 (LAWAR_EN | LAWAR_TRGT_IF_RIO | (LAWAR_SIZE & LAWAR_SIZE_512M))
256
Jon Loeligerd9b94f22005-07-25 14:05:07 -0500257 .section .bootpg, "ax"
258 .globl law_entry
259
260law_entry:
261 entry_start
Zang Roy-r6191141fb7e02006-12-14 14:14:55 +0800262 .long (4f-3f)/8
2633:
Jon Loeligerd9b94f22005-07-25 14:05:07 -0500264 .long LAWBAR0,LAWAR0,LAWBAR1,LAWAR1,LAWBAR2,LAWAR2,LAWBAR3,LAWAR3
Zang Roy-r6191141fb7e02006-12-14 14:14:55 +0800265 .long LAWBAR4,LAWAR4,LAWBAR5,LAWAR5,LAWBAR6,LAWAR6,LAWBAR7,LAWAR7
266 .long LAWBAR8,LAWAR8
2674:
Jon Loeligerd9b94f22005-07-25 14:05:07 -0500268 entry_end