xref: /openbmc/u-boot/board/freescale/mpc8544ds/tlb.c (revision 8ee59472)
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright 2008 Freescale Semiconductor, Inc.
4  *
5  * (C) Copyright 2000
6  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
7  */
8 
9 #include <common.h>
10 #include <asm/mmu.h>
11 
12 struct fsl_e_tlb_entry tlb_table[] = {
13 	/* TLB 0 - for temp stack in cache */
14 	SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR, CONFIG_SYS_INIT_RAM_ADDR,
15 		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
16 		      0, 0, BOOKE_PAGESZ_4K, 0),
17 	SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR + 4 * 1024 , CONFIG_SYS_INIT_RAM_ADDR + 4 * 1024,
18 		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
19 		      0, 0, BOOKE_PAGESZ_4K, 0),
20 	SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR + 8 * 1024 , CONFIG_SYS_INIT_RAM_ADDR + 8 * 1024,
21 		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
22 		      0, 0, BOOKE_PAGESZ_4K, 0),
23 	SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR + 12 * 1024 , CONFIG_SYS_INIT_RAM_ADDR + 12 * 1024,
24 		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
25 		      0, 0, BOOKE_PAGESZ_4K, 0),
26 	/*
27 	 * TLB 0:	64M	Non-cacheable, guarded
28 	 * 0xfc000000	64M	Covers FLASH at 0xFE800000 and 0xFF800000
29 	 * Out of reset this entry is only 4K.
30 	 */
31 	SET_TLB_ENTRY(1, CONFIG_SYS_BOOT_BLOCK, CONFIG_SYS_BOOT_BLOCK,
32 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
33 		      0, 0, BOOKE_PAGESZ_64M, 1),
34 	/*
35 	 * TLB 1:	1G	Non-cacheable, guarded
36 	 * 0x80000000	1G	PCIE  8,9,a,b
37 	 */
38 	SET_TLB_ENTRY(1, CONFIG_SYS_PCIE_VIRT, CONFIG_SYS_PCIE_PHYS,
39 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
40 		      0, 1, BOOKE_PAGESZ_1G, 1),
41 
42 	/*
43 	 * TLB 2:	256M	Non-cacheable, guarded
44 	 */
45 	SET_TLB_ENTRY(1, CONFIG_SYS_PCI_VIRT, CONFIG_SYS_PCI_PHYS,
46 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
47 		      0, 2, BOOKE_PAGESZ_256M, 1),
48 
49 	/*
50 	 * TLB 3:	256M	Non-cacheable, guarded
51 	 */
52 	SET_TLB_ENTRY(1, CONFIG_SYS_PCI_VIRT + 0x10000000, CONFIG_SYS_PCI_PHYS + 0x10000000,
53 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
54 		      0, 3, BOOKE_PAGESZ_256M, 1),
55 
56 	/*
57 	 * TLB 4:	64M	Non-cacheable, guarded
58 	 * 0xe000_0000	1M	CCSRBAR
59 	 * 0xe100_0000	255M	PCI IO range
60 	 */
61 	SET_TLB_ENTRY(1, CONFIG_SYS_CCSRBAR, CONFIG_SYS_CCSRBAR_PHYS,
62 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
63 		      0, 4, BOOKE_PAGESZ_64M, 1),
64 
65 	/*
66 	 * TLB 5:	64M	Non-cacheable, guarded
67 	 * 0xf8000000	64M	PIXIS 0xF8000000 - 0xFBFFFFFF
68 	 */
69 	SET_TLB_ENTRY(1, CONFIG_SYS_LBC_NONCACHE_BASE, CONFIG_SYS_LBC_NONCACHE_BASE,
70 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
71 		      0, 5, BOOKE_PAGESZ_64M, 1),
72 };
73 
74 int num_tlb_entries = ARRAY_SIZE(tlb_table);
75