xref: /openbmc/u-boot/board/freescale/mpc8544ds/tlb.c (revision 24113a44)
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 , CONFIG_SYS_INIT_RAM_ADDR + 4 * 1024,
35 		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
36 		      0, 0, BOOKE_PAGESZ_4K, 0),
37 	SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR + 8 * 1024 , CONFIG_SYS_INIT_RAM_ADDR + 8 * 1024,
38 		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
39 		      0, 0, BOOKE_PAGESZ_4K, 0),
40 	SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR + 12 * 1024 , CONFIG_SYS_INIT_RAM_ADDR + 12 * 1024,
41 		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
42 		      0, 0, BOOKE_PAGESZ_4K, 0),
43 	/*
44 	 * TLB 0:	64M	Non-cacheable, guarded
45 	 * 0xfc000000	64M	Covers FLASH at 0xFE800000 and 0xFF800000
46 	 * Out of reset this entry is only 4K.
47 	 */
48 	SET_TLB_ENTRY(1, CONFIG_SYS_BOOT_BLOCK, CONFIG_SYS_BOOT_BLOCK,
49 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
50 		      0, 0, BOOKE_PAGESZ_64M, 1),
51 	/*
52 	 * TLB 1:	1G	Non-cacheable, guarded
53 	 * 0x80000000	1G	PCIE  8,9,a,b
54 	 */
55 	SET_TLB_ENTRY(1, CONFIG_SYS_PCIE_PHYS, CONFIG_SYS_PCIE_PHYS,
56 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
57 		      0, 1, BOOKE_PAGESZ_1G, 1),
58 
59 	/*
60 	 * TLB 2:	256M	Non-cacheable, guarded
61 	 */
62 	SET_TLB_ENTRY(1, CONFIG_SYS_PCI_PHYS, CONFIG_SYS_PCI_PHYS,
63 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
64 		      0, 2, BOOKE_PAGESZ_256M, 1),
65 
66 	/*
67 	 * TLB 3:	256M	Non-cacheable, guarded
68 	 */
69 	SET_TLB_ENTRY(1, CONFIG_SYS_PCI_PHYS + 0x10000000, CONFIG_SYS_PCI_PHYS + 0x10000000,
70 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
71 		      0, 3, BOOKE_PAGESZ_256M, 1),
72 
73 	/*
74 	 * TLB 4:	64M	Non-cacheable, guarded
75 	 * 0xe000_0000	1M	CCSRBAR
76 	 * 0xe100_0000	255M	PCI IO range
77 	 */
78 	SET_TLB_ENTRY(1, CONFIG_SYS_CCSRBAR, CONFIG_SYS_CCSRBAR_PHYS,
79 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
80 		      0, 4, BOOKE_PAGESZ_64M, 1),
81 
82 	/*
83 	 * TLB 5:	64M	Non-cacheable, guarded
84 	 * 0xf8000000	64M	PIXIS 0xF8000000 - 0xFBFFFFFF
85 	 */
86 	SET_TLB_ENTRY(1, CONFIG_SYS_LBC_NONCACHE_BASE, CONFIG_SYS_LBC_NONCACHE_BASE,
87 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
88 		      0, 5, BOOKE_PAGESZ_64M, 1),
89 };
90 
91 int num_tlb_entries = ARRAY_SIZE(tlb_table);
92