xref: /openbmc/u-boot/board/gdsys/p1022/tlb.c (revision b7ca56dc)
1 /*
2  * Copyright 2010 Freescale Semiconductor, Inc.
3  * Authors: Srikanth Srinivasan <srikanth.srinivasan@freescale.com>
4  *          Timur Tabi <timur@freescale.com>
5  *
6  * SPDX-License-Identifier:	GPL-2.0+
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,
18 		      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,
22 		      CONFIG_SYS_INIT_RAM_ADDR + 8 * 1024,
23 		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
24 		      0, 0, BOOKE_PAGESZ_4K, 0),
25 	SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR + 12 * 1024,
26 		      CONFIG_SYS_INIT_RAM_ADDR + 12 * 1024,
27 		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
28 		      0, 0, BOOKE_PAGESZ_4K, 0),
29 
30 	/* TLB 1 */
31 	/* *I*** - Covers boot page */
32 	SET_TLB_ENTRY(1, 0xfffff000, 0xfffff000,
33 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I,
34 		      0, 0, BOOKE_PAGESZ_4K, 1),
35 
36 	/* *I*G* - CCSRBAR */
37 	SET_TLB_ENTRY(1, CONFIG_SYS_CCSRBAR, CONFIG_SYS_CCSRBAR_PHYS,
38 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
39 		      0, 1, BOOKE_PAGESZ_1M, 1),
40 
41 	/* *I*G* - eLBC */
42 	SET_TLB_ENTRY(1, CONFIG_SYS_ELBC_BASE, CONFIG_SYS_ELBC_BASE_PHYS,
43 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
44 		      0, 2, BOOKE_PAGESZ_1M, 1),
45 
46 #if defined(CONFIG_TRAILBLAZER)
47 	/* *I*G - L2SRAM */
48 	SET_TLB_ENTRY(1, CONFIG_SYS_INIT_L2_ADDR, CONFIG_SYS_INIT_L2_ADDR_PHYS,
49 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
50 		      0, 9, BOOKE_PAGESZ_256K, 1),
51 #else
52 	/* *I*G* - PCI */
53 	SET_TLB_ENTRY(1, CONFIG_SYS_PCIE1_MEM_VIRT, CONFIG_SYS_PCIE1_MEM_PHYS,
54 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
55 		      0, 3, BOOKE_PAGESZ_256M, 1),
56 	SET_TLB_ENTRY(1, CONFIG_SYS_PCIE1_MEM_VIRT + 0x10000000,
57 		      CONFIG_SYS_PCIE1_MEM_PHYS + 0x10000000,
58 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
59 		      0, 4, BOOKE_PAGESZ_256M, 1),
60 
61 	/* *I*G* - PCI I/O */
62 	SET_TLB_ENTRY(1, CONFIG_SYS_PCIE1_IO_VIRT, CONFIG_SYS_PCIE1_IO_PHYS,
63 		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
64 		      0, 5, BOOKE_PAGESZ_256K, 1),
65 
66 #ifdef CONFIG_SYS_RAMBOOT
67 	SET_TLB_ENTRY(1, CONFIG_SYS_DDR_SDRAM_BASE, CONFIG_SYS_DDR_SDRAM_BASE,
68 		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
69 		      0, 6, BOOKE_PAGESZ_1G, 1),
70 #endif
71 #endif
72 };
73 
74 int num_tlb_entries = ARRAY_SIZE(tlb_table);
75