xref: /openbmc/u-boot/board/sbc8548/tlb.c (revision 29b103c7)
1 /*
2  * Copyright 2008 Freescale Semiconductor, Inc.
3  *
4  * (C) Copyright 2000
5  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
6  *
7  * SPDX-License-Identifier:	GPL-2.0+
8  */
9 
10 #include <common.h>
11 #include <asm/mmu.h>
12 
13 struct fsl_e_tlb_entry tlb_table[] = {
14 	/* TLB 0 - for temp stack in cache */
15 	SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR, CONFIG_SYS_INIT_RAM_ADDR,
16 		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
17 		      0, 0, BOOKE_PAGESZ_4K, 0),
18 	SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR + 4 * 1024,
19 		      CONFIG_SYS_INIT_RAM_ADDR + 4 * 1024,
20 		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
21 		      0, 0, BOOKE_PAGESZ_4K, 0),
22 	SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR + 8 * 1024,
23 		      CONFIG_SYS_INIT_RAM_ADDR + 8 * 1024,
24 		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
25 		      0, 0, BOOKE_PAGESZ_4K, 0),
26 	SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR + 12 * 1024,
27 		      CONFIG_SYS_INIT_RAM_ADDR + 12 * 1024,
28 		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
29 		      0, 0, BOOKE_PAGESZ_4K, 0),
30 
31 	/*
32 	 * TLB 0:	64M	Non-cacheable, guarded
33 	 * 0xfc000000	56M	unused
34 	 * 0xff800000	8M	boot FLASH
35 	 *	.... or ....
36 	 * 0xfc000000	64M	user flash
37 	 *
38 	 * Out of reset this entry is only 4K.
39 	 */
40 	SET_TLB_ENTRY(1, 0xfc000000, 0xfc000000,
41 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
42 		      0, 0, BOOKE_PAGESZ_64M, 1),
43 
44 	/*
45 	 * TLB 1:	1G	Non-cacheable, guarded
46 	 * 0x80000000	512M	PCI1 MEM
47 	 * 0xa0000000	512M	PCIe MEM
48 	 */
49 	SET_TLB_ENTRY(1, CONFIG_SYS_PCI1_MEM_VIRT, CONFIG_SYS_PCI1_MEM_PHYS,
50 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
51 		      0, 1, BOOKE_PAGESZ_1G, 1),
52 
53 	/*
54 	 * TLB 2:	64M	Non-cacheable, guarded
55 	 * 0xe0000000	1M	CCSRBAR
56 	 * 0xe2000000	8M	PCI1 IO
57 	 * 0xe2800000	8M	PCIe IO
58 	 */
59 	SET_TLB_ENTRY(1, CONFIG_SYS_CCSRBAR, CONFIG_SYS_CCSRBAR_PHYS,
60 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
61 		      0, 2, BOOKE_PAGESZ_64M, 1),
62 
63 #ifdef CONFIG_SYS_LBC_SDRAM_BASE
64 	/*
65 	 * TLB 3:	64M	Cacheable, non-guarded
66 	 * 0xf0000000	64M	LBC SDRAM First half
67 	 */
68 	SET_TLB_ENTRY(1, CONFIG_SYS_LBC_SDRAM_BASE, CONFIG_SYS_LBC_SDRAM_BASE,
69 		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
70 		      0, 3, BOOKE_PAGESZ_64M, 1),
71 
72 	/*
73 	 * TLB 4:	64M	Cacheable, non-guarded
74 	 * 0xf4000000	64M	LBC SDRAM Second half
75 	 */
76 	SET_TLB_ENTRY(1, CONFIG_SYS_LBC_SDRAM_BASE + 0x4000000,
77 		      CONFIG_SYS_LBC_SDRAM_BASE + 0x4000000,
78 		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
79 		      0, 4, BOOKE_PAGESZ_64M, 1),
80 #endif
81 
82 	/*
83 	 * TLB 5:	16M	Cacheable, non-guarded
84 	 * 0xf8000000	1M	7-segment LED display
85 	 * 0xf8100000	1M	User switches
86 	 * 0xf8300000	1M	Board revision
87 	 * 0xf8b00000	1M	EEPROM
88 	 */
89 	SET_TLB_ENTRY(1, CONFIG_SYS_EPLD_BASE, CONFIG_SYS_EPLD_BASE,
90 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
91 		      0, 5, BOOKE_PAGESZ_16M, 1),
92 
93 #ifndef CONFIG_SYS_ALT_BOOT
94 	/*
95 	 * TLB 6:	64M	Non-cacheable, guarded
96 	 * 0xec000000	64M	64MB user FLASH
97 	 */
98 	SET_TLB_ENTRY(1, CONFIG_SYS_ALT_FLASH, CONFIG_SYS_ALT_FLASH,
99 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
100 		      0, 6, BOOKE_PAGESZ_64M, 1),
101 #else
102 	/*
103 	 * TLB 6:	4M	Non-cacheable, guarded
104 	 * 0xef800000	4M	1st 1/2 8MB soldered FLASH
105 	 */
106 	SET_TLB_ENTRY(1, CONFIG_SYS_ALT_FLASH, CONFIG_SYS_ALT_FLASH,
107 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
108 		      0, 6, BOOKE_PAGESZ_4M, 1),
109 
110 	/*
111 	 * TLB 7:	4M	Non-cacheable, guarded
112 	 * 0xefc00000	4M	2nd half 8MB soldered FLASH
113 	 */
114 	SET_TLB_ENTRY(1, CONFIG_SYS_ALT_FLASH + 0x400000,
115 		      CONFIG_SYS_ALT_FLASH + 0x400000,
116 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
117 		      0, 7, BOOKE_PAGESZ_4M, 1),
118 #endif
119 
120 };
121 
122 int num_tlb_entries = ARRAY_SIZE(tlb_table);
123