xref: /openbmc/u-boot/board/freescale/mpc8544ds/tlb.c (revision 274bced8)
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 , CONFIG_SYS_INIT_RAM_ADDR + 4 * 1024,
19 		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
20 		      0, 0, BOOKE_PAGESZ_4K, 0),
21 	SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR + 8 * 1024 , CONFIG_SYS_INIT_RAM_ADDR + 8 * 1024,
22 		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
23 		      0, 0, BOOKE_PAGESZ_4K, 0),
24 	SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR + 12 * 1024 , CONFIG_SYS_INIT_RAM_ADDR + 12 * 1024,
25 		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
26 		      0, 0, BOOKE_PAGESZ_4K, 0),
27 	/*
28 	 * TLB 0:	64M	Non-cacheable, guarded
29 	 * 0xfc000000	64M	Covers FLASH at 0xFE800000 and 0xFF800000
30 	 * Out of reset this entry is only 4K.
31 	 */
32 	SET_TLB_ENTRY(1, CONFIG_SYS_BOOT_BLOCK, CONFIG_SYS_BOOT_BLOCK,
33 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
34 		      0, 0, BOOKE_PAGESZ_64M, 1),
35 	/*
36 	 * TLB 1:	1G	Non-cacheable, guarded
37 	 * 0x80000000	1G	PCIE  8,9,a,b
38 	 */
39 	SET_TLB_ENTRY(1, CONFIG_SYS_PCIE_VIRT, CONFIG_SYS_PCIE_PHYS,
40 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
41 		      0, 1, BOOKE_PAGESZ_1G, 1),
42 
43 	/*
44 	 * TLB 2:	256M	Non-cacheable, guarded
45 	 */
46 	SET_TLB_ENTRY(1, CONFIG_SYS_PCI_VIRT, CONFIG_SYS_PCI_PHYS,
47 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
48 		      0, 2, BOOKE_PAGESZ_256M, 1),
49 
50 	/*
51 	 * TLB 3:	256M	Non-cacheable, guarded
52 	 */
53 	SET_TLB_ENTRY(1, CONFIG_SYS_PCI_VIRT + 0x10000000, CONFIG_SYS_PCI_PHYS + 0x10000000,
54 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
55 		      0, 3, BOOKE_PAGESZ_256M, 1),
56 
57 	/*
58 	 * TLB 4:	64M	Non-cacheable, guarded
59 	 * 0xe000_0000	1M	CCSRBAR
60 	 * 0xe100_0000	255M	PCI IO range
61 	 */
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, 4, BOOKE_PAGESZ_64M, 1),
65 
66 	/*
67 	 * TLB 5:	64M	Non-cacheable, guarded
68 	 * 0xf8000000	64M	PIXIS 0xF8000000 - 0xFBFFFFFF
69 	 */
70 	SET_TLB_ENTRY(1, CONFIG_SYS_LBC_NONCACHE_BASE, CONFIG_SYS_LBC_NONCACHE_BASE,
71 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
72 		      0, 5, BOOKE_PAGESZ_64M, 1),
73 };
74 
75 int num_tlb_entries = ARRAY_SIZE(tlb_table);
76