xref: /openbmc/u-boot/board/sbc8548/tlb.c (revision 15855700)
1 /*
2  * Copyright 2008 Freescale Semiconductor, Inc.
3  *
4  * (C) Copyright 2000
5  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
6  *
7  * See file CREDITS for list of people who contributed to this
8  * project.
9  *
10  * This program is free software; you can redistribute it and/or
11  * modify it under the terms of the GNU General Public License as
12  * published by the Free Software Foundation; either version 2 of
13  * the License, or (at your option) any later version.
14  *
15  * This program is distributed in the hope that it will be useful,
16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18  * GNU General Public License for more details.
19  *
20  * You should have received a copy of the GNU General Public License
21  * along with this program; if not, write to the Free Software
22  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
23  * MA 02111-1307 USA
24  */
25 
26 #include <common.h>
27 #include <asm/mmu.h>
28 
29 struct fsl_e_tlb_entry tlb_table[] = {
30 	/* TLB 0 - for temp stack in cache */
31 	SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR, CONFIG_SYS_INIT_RAM_ADDR,
32 		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
33 		      0, 0, BOOKE_PAGESZ_4K, 0),
34 	SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR + 4 * 1024,
35 		      CONFIG_SYS_INIT_RAM_ADDR + 4 * 1024,
36 		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
37 		      0, 0, BOOKE_PAGESZ_4K, 0),
38 	SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR + 8 * 1024,
39 		      CONFIG_SYS_INIT_RAM_ADDR + 8 * 1024,
40 		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
41 		      0, 0, BOOKE_PAGESZ_4K, 0),
42 	SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR + 12 * 1024,
43 		      CONFIG_SYS_INIT_RAM_ADDR + 12 * 1024,
44 		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
45 		      0, 0, BOOKE_PAGESZ_4K, 0),
46 
47 	/*
48 	 * TLB 0:	64M	Non-cacheable, guarded
49 	 * 0xfc000000	56M	8MB -> 64MB of user flash
50 	 * 0xff800000	8M	boot FLASH
51 	 * Out of reset this entry is only 4K.
52 	 */
53 	SET_TLB_ENTRY(1, CONFIG_SYS_ALT_FLASH + 0x800000,
54 		      CONFIG_SYS_ALT_FLASH + 0x800000,
55 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
56 		      0, 0, BOOKE_PAGESZ_64M, 1),
57 
58 	/*
59 	 * TLB 1:	1G	Non-cacheable, guarded
60 	 * 0x80000000	512M	PCI1 MEM
61 	 * 0xa0000000	512M	PCIe MEM
62 	 */
63 	SET_TLB_ENTRY(1, CONFIG_SYS_PCI1_MEM_VIRT, CONFIG_SYS_PCI1_MEM_PHYS,
64 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
65 		      0, 1, BOOKE_PAGESZ_1G, 1),
66 
67 	/*
68 	 * TLB 2:	256M Cacheable, non-guarded
69 	 * 0x0		256M DDR SDRAM
70 	 */
71 #if !defined(CONFIG_SPD_EEPROM)
72 	SET_TLB_ENTRY(1, CONFIG_SYS_DDR_SDRAM_BASE, CONFIG_SYS_DDR_SDRAM_BASE,
73 		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
74 		      0, 2, BOOKE_PAGESZ_256M, 1),
75 #endif
76 
77 	/*
78 	 * TLB 3:	64M	Non-cacheable, guarded
79 	 * 0xe0000000	1M	CCSRBAR
80 	 * 0xe2000000	8M	PCI1 IO
81 	 * 0xe2800000	8M	PCIe IO
82 	 */
83 	SET_TLB_ENTRY(1, CONFIG_SYS_CCSRBAR, CONFIG_SYS_CCSRBAR_PHYS,
84 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
85 		      0, 3, BOOKE_PAGESZ_64M, 1),
86 
87 	/*
88 	 * TLB 4:	64M	Cacheable, non-guarded
89 	 * 0xf0000000	64M	LBC SDRAM First half
90 	 */
91 	SET_TLB_ENTRY(1, CONFIG_SYS_LBC_SDRAM_BASE, CONFIG_SYS_LBC_SDRAM_BASE,
92 		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
93 		      0, 4, BOOKE_PAGESZ_64M, 1),
94 
95 	/*
96 	 * TLB 5:	64M	Cacheable, non-guarded
97 	 * 0xf4000000	64M	LBC SDRAM Second half
98 	 */
99 	SET_TLB_ENTRY(1, CONFIG_SYS_LBC_SDRAM_BASE + 0x4000000,
100 		      CONFIG_SYS_LBC_SDRAM_BASE + 0x4000000,
101 		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
102 		      0, 5, BOOKE_PAGESZ_64M, 1),
103 
104 	/*
105 	 * TLB 6:	16M	Cacheable, non-guarded
106 	 * 0xf8000000	1M	7-segment LED display
107 	 * 0xf8100000	1M	User switches
108 	 * 0xf8300000	1M	Board revision
109 	 * 0xf8b00000	1M	EEPROM
110 	 */
111 	SET_TLB_ENTRY(1, CONFIG_SYS_EPLD_BASE, CONFIG_SYS_EPLD_BASE,
112 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
113 		      0, 6, BOOKE_PAGESZ_16M, 1),
114 
115 	/*
116 	 * TLB 7:	4M	Non-cacheable, guarded
117 	 * 0xfb800000	4M	1st 4MB block of 64MB user FLASH
118 	 */
119 	SET_TLB_ENTRY(1, CONFIG_SYS_ALT_FLASH, CONFIG_SYS_ALT_FLASH,
120 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
121 		      0, 7, BOOKE_PAGESZ_4M, 1),
122 
123 	/*
124 	 * TLB 8:	4M	Non-cacheable, guarded
125 	 * 0xfbc00000	4M	2nd 4MB block of 64MB user FLASH
126 	 */
127 	SET_TLB_ENTRY(1, CONFIG_SYS_ALT_FLASH + 0x400000,
128 		      CONFIG_SYS_ALT_FLASH + 0x400000,
129 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
130 		      0, 8, BOOKE_PAGESZ_4M, 1),
131 
132 };
133 
134 int num_tlb_entries = ARRAY_SIZE(tlb_table);
135