| Tirumala Marri | d0e6665 | 2010-09-28 14:15:21 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2010, Applied Micro Circuits Corporation |
| 3 | * Author: Tirumala R Marri <tmarri@apm.com> |
| 4 | * |
| Wolfgang Denk | 3765b3e | 2013-10-07 13:07:26 +0200 | [diff] [blame] | 5 | * SPDX-License-Identifier: GPL-2.0+ |
| Tirumala Marri | d0e6665 | 2010-09-28 14:15:21 -0700 | [diff] [blame] | 6 | */ |
| 7 | |
| Wolfgang Denk | 25ddd1f | 2010-10-26 14:34:52 +0200 | [diff] [blame] | 8 | #include <asm-offsets.h> |
| Tirumala Marri | d0e6665 | 2010-09-28 14:15:21 -0700 | [diff] [blame] | 9 | #include <ppc_asm.tmpl> |
| 10 | #include <config.h> |
| 11 | #include <asm/mmu.h> |
| 12 | #include <asm/ppc4xx.h> |
| 13 | |
| 14 | /************************************************************************** |
| 15 | * TLB TABLE |
| 16 | * |
| 17 | * This table is used by the cpu boot code to setup the initial tlb |
| 18 | * entries. Rather than make broad assumptions in the cpu source tree, |
| 19 | * this table lets each board set things up however they like. |
| 20 | * |
| 21 | * Pointer to the table is returned in r1 |
| 22 | * |
| 23 | *************************************************************************/ |
| 24 | .section .bootpg,"ax" |
| 25 | .globl tlbtab |
| 26 | |
| 27 | tlbtab: |
| 28 | tlbtab_start |
| 29 | |
| 30 | /* TLB 0 */ |
| 31 | tlbentry(CONFIG_SYS_BOOT_BASE_ADDR, SZ_16M, CONFIG_SYS_BOOT_BASE_ADDR, |
| 32 | 4, AC_RWX | SA_G) |
| 33 | |
| 34 | /* TLB-entry for init-ram in dcache (SA_I must be turned off!) */ |
| 35 | tlbentry(CONFIG_SYS_INIT_RAM_ADDR, SZ_4K, CONFIG_SYS_INIT_RAM_ADDR, |
| 36 | 0, AC_RWX | SA_G) |
| 37 | |
| 38 | /* TLB-entry for OCM */ |
| 39 | tlbentry(CONFIG_SYS_OCM_BASE, SZ_64K, 0x00040000, 4, |
| 40 | AC_RWX | SA_I) |
| 41 | |
| 42 | /* TLB-entry for Local Configuration registers => peripherals */ |
| 43 | tlbentry(CONFIG_SYS_PERIPHERAL_BASE, SZ_16K, |
| 44 | CONFIG_SYS_PERIPHERAL_BASE, 4, AC_RWX | SA_IG) |
| 45 | tlbtab_end |