xref: /openbmc/u-boot/board/freescale/mpc8536ds/tlb.c (revision 4e3349b6)
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 	SET_TLB_ENTRY(0, PIXIS_BASE, PIXIS_BASE_PHYS,
45 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
46 		      0, 0, BOOKE_PAGESZ_4K, 0),
47 
48 	/* TLB 1 */
49 	/* *I*G* - CCSRBAR */
50 	SET_TLB_ENTRY(1, CONFIG_SYS_CCSRBAR, CONFIG_SYS_CCSRBAR_PHYS,
51 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
52 		      0, 0, BOOKE_PAGESZ_1M, 1),
53 
54 	/* W**G* - Flash/promjet, localbus */
55 	/* This will be changed to *I*G* after relocation to RAM. */
56 	SET_TLB_ENTRY(1, CONFIG_SYS_FLASH_BASE, CONFIG_SYS_FLASH_BASE_PHYS,
57 		      MAS3_SX|MAS3_SR, MAS2_W|MAS2_G,
58 		      0, 1, BOOKE_PAGESZ_256M, 1),
59 
60 	/* *I*G* - PCI */
61 	SET_TLB_ENTRY(1, CONFIG_SYS_PCI1_MEM_VIRT, CONFIG_SYS_PCI1_MEM_PHYS,
62 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
63 		      0, 2, BOOKE_PAGESZ_1G, 1),
64 
65 	/* *I*G* - PCI I/O */
66 	SET_TLB_ENTRY(1, CONFIG_SYS_PCI1_IO_VIRT, CONFIG_SYS_PCI1_IO_PHYS,
67 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
68 		      0, 3, BOOKE_PAGESZ_256K, 1),
69 
70 	/* *I*G - NAND */
71 	SET_TLB_ENTRY(1, CONFIG_SYS_NAND_BASE, CONFIG_SYS_NAND_BASE_PHYS,
72 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
73 		      0, 4, BOOKE_PAGESZ_1M, 1),
74 
75 #if defined(CONFIG_SYS_RAMBOOT) && defined(CONFIG_SYS_INIT_L2_ADDR)
76 	/* *I*G - L2SRAM */
77 	SET_TLB_ENTRY(1, CONFIG_SYS_INIT_L2_ADDR, CONFIG_SYS_INIT_L2_ADDR_PHYS,
78 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
79 		      0, 5, BOOKE_PAGESZ_256K, 1),
80 	SET_TLB_ENTRY(1, CONFIG_SYS_INIT_L2_ADDR + 0x40000,
81 		      CONFIG_SYS_INIT_L2_ADDR_PHYS + 0x40000,
82 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
83 		      0, 6, BOOKE_PAGESZ_256K, 1),
84 #endif
85 };
86 
87 int num_tlb_entries = ARRAY_SIZE(tlb_table);
88