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c591dffe LJ |
1 | /* |
2 | * | |
3 | * See file CREDITS for list of people who contributed to this | |
4 | * project. | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU General Public License as | |
8 | * published by the Free Software Foundation; either version 2 of | |
9 | * the License, or (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
19 | * MA 02111-1307 USA | |
20 | */ | |
21 | ||
22 | #include <ppc_asm.tmpl> | |
23 | #include <asm-ppc/mmu.h> | |
24 | #include <config.h> | |
25 | ||
26 | /************************************************************************** | |
27 | * TLB TABLE | |
28 | * | |
29 | * This table is used by the cpu boot code to setup the initial tlb | |
30 | * entries. Rather than make broad assumptions in the cpu source tree, | |
31 | * this table lets each board set things up however they like. | |
32 | * | |
33 | * Pointer to the table is returned in r1 | |
34 | * | |
35 | *************************************************************************/ | |
36 | .section .bootpg,"ax" | |
37 | .globl tlbtab | |
38 | ||
39 | tlbtab: | |
40 | tlbtab_start | |
41 | ||
42 | /* | |
43 | * BOOT_CS (FLASH) must be first. Before relocation SA_I can be off to use the | |
44 | * speed up boot process. It is patched after relocation to enable SA_I | |
45 | */ | |
6433fa20 | 46 | tlbentry( 0xF0000000, SZ_256M, 0xF0000000, 1, AC_R|AC_W|AC_X|SA_G ) |
c591dffe LJ |
47 | |
48 | /* | |
49 | * TLB entries for SDRAM are not needed on this platform. They are | |
50 | * generated dynamically in the SPD DDR2 detection routine. | |
51 | */ | |
52 | ||
6d0f6bcf | 53 | #ifdef CONFIG_SYS_INIT_RAM_DCACHE |
c591dffe | 54 | /* TLB-entry for init-ram in dcache (SA_I must be turned off!) */ |
6d0f6bcf | 55 | tlbentry( CONFIG_SYS_INIT_RAM_ADDR, SZ_64K, CONFIG_SYS_INIT_RAM_ADDR, 0, |
6433fa20 | 56 | AC_R|AC_W|AC_X|SA_G ) |
c591dffe LJ |
57 | #endif |
58 | ||
59 | /* TLB-entry for PCI Memory */ | |
6d0f6bcf JCPV |
60 | tlbentry( CONFIG_SYS_PCI_MEMBASE + 0x00000000, SZ_256M, |
61 | CONFIG_SYS_PCI_MEMBASE + 0x00000000, 1, AC_R|AC_W|SA_G|SA_I ) | |
6433fa20 | 62 | |
6d0f6bcf JCPV |
63 | tlbentry( CONFIG_SYS_PCI_MEMBASE + 0x10000000, SZ_256M, |
64 | CONFIG_SYS_PCI_MEMBASE + 0x10000000, 1, AC_R|AC_W|SA_G|SA_I ) | |
6433fa20 | 65 | |
6d0f6bcf JCPV |
66 | tlbentry( CONFIG_SYS_PCI_MEMBASE + 0x20000000, SZ_256M, |
67 | CONFIG_SYS_PCI_MEMBASE + 0x20000000, 1, AC_R|AC_W|SA_G|SA_I ) | |
6433fa20 | 68 | |
6d0f6bcf JCPV |
69 | tlbentry( CONFIG_SYS_PCI_MEMBASE + 0x30000000, SZ_256M, |
70 | CONFIG_SYS_PCI_MEMBASE + 0x30000000, 1, AC_R|AC_W|SA_G|SA_I ) | |
c591dffe LJ |
71 | |
72 | /* TLB-entry for EBC */ | |
6d0f6bcf | 73 | tlbentry( CONFIG_SYS_CPLD_BASE, SZ_1K, CONFIG_SYS_CPLD_BASE, 1, AC_R|AC_W|SA_G|SA_I ) |
c591dffe LJ |
74 | |
75 | /* TLB-entry for Internal Registers & OCM */ | |
76 | /* I wonder why this must be executable -- lrj@acm.org 2007-10-08 */ | |
6433fa20 | 77 | tlbentry( 0xE0000000, SZ_16M, 0xE0000000, 0, AC_R|AC_W|AC_X|SA_I ) |
c591dffe LJ |
78 | |
79 | /*TLB-entry PCI registers*/ | |
6433fa20 | 80 | tlbentry( 0xEEC00000, SZ_1K, 0xEEC00000, 1, AC_R|AC_W|SA_G|SA_I ) |
c591dffe LJ |
81 | |
82 | /* TLB-entry for peripherals */ | |
83 | tlbentry( 0xEF000000, SZ_16M, 0xEF000000, 1, AC_R|AC_W|SA_G|SA_I) | |
84 | ||
85 | /* TLB-entry PCI IO Space - from sr@denx.de */ | |
86 | tlbentry(0xE8000000, SZ_64K, 0xE8000000, 1, AC_R|AC_W|SA_G|SA_I) | |
87 | ||
88 | tlbtab_end | |
6433fa20 LJ |
89 | |
90 | #if defined(CONFIG_KORAT_PERMANENT) | |
91 | .globl korat_branch_absolute | |
92 | korat_branch_absolute: | |
93 | mtlr r3 | |
94 | blr | |
95 | #endif |