xref: /openbmc/u-boot/board/freescale/b4860qds/tlb.c (revision b1e6c4c3)
1 /*
2  * Copyright 2011-2012 Freescale Semiconductor, Inc.
3  *
4  * See file CREDITS for list of people who contributed to this
5  * project.
6  *
7  * This program is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU General Public License as
9  * published by the Free Software Foundation; either version 2 of
10  * the License, or (at your option) any later version.
11  *
12  * This program is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with this program; if not, write to the Free Software
19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
20  * MA 02111-1307 USA
21  */
22 
23 #include <common.h>
24 #include <asm/mmu.h>
25 
26 struct fsl_e_tlb_entry tlb_table[] = {
27 	/* TLB 0 - for temp stack in cache */
28 	SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR,
29 		      CONFIG_SYS_INIT_RAM_ADDR_PHYS,
30 		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
31 		      0, 0, BOOKE_PAGESZ_4K, 0),
32 	SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR + 4 * 1024,
33 		      CONFIG_SYS_INIT_RAM_ADDR_PHYS + 4 * 1024,
34 		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
35 		      0, 0, BOOKE_PAGESZ_4K, 0),
36 	SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR + 8 * 1024,
37 		      CONFIG_SYS_INIT_RAM_ADDR_PHYS + 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,
41 		      CONFIG_SYS_INIT_RAM_ADDR_PHYS + 12 * 1024,
42 		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
43 		      0, 0, BOOKE_PAGESZ_4K, 0),
44 
45 	/* TLB 1 */
46 	/* *I*** - Covers boot page */
47 #if defined(CONFIG_SYS_RAMBOOT) && defined(CONFIG_SYS_INIT_L3_ADDR)
48 	/*
49 	 * *I*G - L3SRAM. When L3 is used as 1M SRAM, the address of the
50 	 * SRAM is at 0xfff00000, it covered the 0xfffff000.
51 	 */
52 	SET_TLB_ENTRY(1, CONFIG_SYS_INIT_L3_ADDR, CONFIG_SYS_INIT_L3_ADDR,
53 			MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
54 			0, 0, BOOKE_PAGESZ_1M, 1),
55 #else
56 	SET_TLB_ENTRY(1, 0xfffff000, 0xfffff000,
57 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
58 		      0, 0, BOOKE_PAGESZ_4K, 1),
59 #endif
60 
61 	/* *I*G* - CCSRBAR */
62 	SET_TLB_ENTRY(1, CONFIG_SYS_CCSRBAR, CONFIG_SYS_CCSRBAR_PHYS,
63 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
64 		      0, 1, BOOKE_PAGESZ_16M, 1),
65 
66 	/* *I*G* - Flash, localbus */
67 	/* This will be changed to *I*G* after relocation to RAM. */
68 	SET_TLB_ENTRY(1, CONFIG_SYS_FLASH_BASE, CONFIG_SYS_FLASH_BASE_PHYS,
69 		      MAS3_SX|MAS3_SR, MAS2_W|MAS2_G,
70 		      0, 2, BOOKE_PAGESZ_256M, 1),
71 
72 	/* *I*G* - PCI */
73 	SET_TLB_ENTRY(1, CONFIG_SYS_PCIE1_MEM_VIRT, CONFIG_SYS_PCIE1_MEM_PHYS,
74 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
75 		      0, 3, BOOKE_PAGESZ_256M, 1),
76 
77 	SET_TLB_ENTRY(1, CONFIG_SYS_PCIE1_MEM_VIRT + 0x10000000,
78                       CONFIG_SYS_PCIE1_MEM_PHYS + 0x10000000,
79 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
80 		      0, 4, BOOKE_PAGESZ_256M, 1),
81 
82 	/* *I*G* - PCI I/O */
83 	SET_TLB_ENTRY(1, CONFIG_SYS_PCIE1_IO_VIRT, CONFIG_SYS_PCIE1_IO_PHYS,
84 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
85 		      0, 5, BOOKE_PAGESZ_64K, 1),
86 
87 	/* Bman/Qman */
88 #ifdef CONFIG_SYS_BMAN_MEM_PHYS
89 	SET_TLB_ENTRY(1, CONFIG_SYS_BMAN_MEM_BASE, CONFIG_SYS_BMAN_MEM_PHYS,
90 		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
91 		      0, 6, BOOKE_PAGESZ_16M, 1),
92 	SET_TLB_ENTRY(1, CONFIG_SYS_BMAN_MEM_BASE + 0x01000000,
93 		      CONFIG_SYS_BMAN_MEM_PHYS + 0x01000000,
94 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
95 		      0, 7, BOOKE_PAGESZ_16M, 1),
96 #endif
97 #ifdef CONFIG_SYS_QMAN_MEM_PHYS
98 	SET_TLB_ENTRY(1, CONFIG_SYS_QMAN_MEM_BASE, CONFIG_SYS_QMAN_MEM_PHYS,
99 		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
100 		      0, 8, BOOKE_PAGESZ_16M, 1),
101 	SET_TLB_ENTRY(1, CONFIG_SYS_QMAN_MEM_BASE + 0x01000000,
102 		      CONFIG_SYS_QMAN_MEM_PHYS + 0x01000000,
103 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
104 		      0, 9, BOOKE_PAGESZ_16M, 1),
105 #endif
106 #ifdef CONFIG_SYS_DCSRBAR_PHYS
107 	SET_TLB_ENTRY(1, CONFIG_SYS_DCSRBAR, CONFIG_SYS_DCSRBAR_PHYS,
108 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
109 		      0, 10, BOOKE_PAGESZ_4M, 1),
110 #endif
111 #ifdef CONFIG_SYS_NAND_BASE
112 	/*
113 	 * *I*G - NAND
114 	 */
115 	SET_TLB_ENTRY(1, CONFIG_SYS_NAND_BASE, CONFIG_SYS_NAND_BASE_PHYS,
116 			MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
117 			0, 11, BOOKE_PAGESZ_64K, 1),
118 #endif
119 	SET_TLB_ENTRY(1, QIXIS_BASE, QIXIS_BASE_PHYS,
120 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
121 		      0, 12, BOOKE_PAGESZ_4K, 1),
122 
123 	/*
124 	 * *I*G - SRIO
125 	 * entry 14 and 15 has been used hard coded, they will be disabled
126 	 * in cpu_init_f, so we use entry 16 for SRIO2.
127 	 */
128 #ifdef CONFIG_SYS_SRIO1_MEM_PHYS
129 	/* *I*G* - SRIO1 */
130 	SET_TLB_ENTRY(1, CONFIG_SYS_SRIO1_MEM_VIRT, CONFIG_SYS_SRIO1_MEM_PHYS,
131 		MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
132 		      0, 13, BOOKE_PAGESZ_256M, 1),
133 #endif
134 #ifdef CONFIG_SYS_SRIO2_MEM_PHYS
135 	/* *I*G* - SRIO2 */
136 	SET_TLB_ENTRY(1, CONFIG_SYS_SRIO2_MEM_VIRT, CONFIG_SYS_SRIO2_MEM_PHYS,
137 		MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
138 		      0, 16, BOOKE_PAGESZ_256M, 1),
139 #endif
140 };
141 
142 int num_tlb_entries = ARRAY_SIZE(tlb_table);
143