| Feng Kan | 0ce5c86 | 2008-07-08 22:48:42 -0700 | [diff] [blame] | 1 | /* |
| 2 | * (C) Copyright 2008 |
| 3 | * Feng Kan, Applied Micro Circuits Corp., fkan@amcc.com. |
| 4 | * |
| 5 | * See file CREDITS for list of people who contributed to this |
| 6 | * project. |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or |
| 9 | * modify it under the terms of the GNU General Public License as |
| 10 | * published by the Free Software Foundation; either version 2 of |
| 11 | * the License, or (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License |
| 19 | * along with this program; if not, write to the Free Software |
| 20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| 21 | * MA 02111-1307 USA |
| 22 | */ |
| 23 | |
| 24 | #include <ppc_asm.tmpl> |
| 25 | #include <config.h> |
| Peter Tyser | 61f2b38 | 2010-04-12 22:28:07 -0500 | [diff] [blame] | 26 | #include <asm/mmu.h> |
| Stefan Roese | 550650d | 2010-09-20 16:05:31 +0200 | [diff] [blame] | 27 | #include <asm/ppc4xx.h> |
| Feng Kan | 0ce5c86 | 2008-07-08 22:48:42 -0700 | [diff] [blame] | 28 | |
| 29 | /************************************************************************** |
| 30 | * TLB TABLE |
| 31 | * |
| 32 | * This table is used by the cpu boot code to setup the initial tlb |
| 33 | * entries. Rather than make broad assumptions in the cpu source tree, |
| 34 | * this table lets each board set things up however they like. |
| 35 | * |
| 36 | * Pointer to the table is returned in r1 |
| 37 | * |
| 38 | *************************************************************************/ |
| 39 | |
| 40 | .section .bootpg,"ax" |
| 41 | .globl tlbtab |
| 42 | tlbtab: |
| 43 | tlbtab_start |
| 44 | |
| 45 | /* |
| 46 | * BOOT_CS (FLASH) must be first. Before relocation SA_I can be off to use the |
| 47 | * speed up boot process. It is patched after relocation to enable SA_I |
| 48 | */ |
| Stefan Roese | cf6eb6d | 2010-04-14 13:57:18 +0200 | [diff] [blame] | 49 | tlbentry(0xff000000, SZ_16M, 0xff000000, 4, AC_RWX | SA_G) |
| Feng Kan | 0ce5c86 | 2008-07-08 22:48:42 -0700 | [diff] [blame] | 50 | |
| 51 | /* |
| 52 | * TLB entries for SDRAM are not needed on this platform. |
| 53 | * They are dynamically generated in the SPD DDR(2) detection |
| 54 | * routine. |
| 55 | */ |
| 56 | |
| 57 | /* Although 512 KB, map 256k at a time */ |
| Stefan Roese | cf6eb6d | 2010-04-14 13:57:18 +0200 | [diff] [blame] | 58 | tlbentry(CONFIG_SYS_ISRAM_BASE, SZ_256K, 0x00000000, 4, AC_RWX | SA_I) |
| 59 | tlbentry(CONFIG_SYS_ISRAM_BASE + 0x40000, SZ_256K, 0x00040000, 4, AC_RWX | SA_I) |
| Feng Kan | 0ce5c86 | 2008-07-08 22:48:42 -0700 | [diff] [blame] | 60 | |
| Stefan Roese | cf6eb6d | 2010-04-14 13:57:18 +0200 | [diff] [blame] | 61 | tlbentry(CONFIG_SYS_OPER_FLASH, SZ_16M, 0xE7000000, 4,AC_RWX | SA_IG) |
| Feng Kan | 0ce5c86 | 2008-07-08 22:48:42 -0700 | [diff] [blame] | 62 | |
| 63 | /* |
| 64 | * Peripheral base |
| 65 | */ |
| Stefan Roese | cf6eb6d | 2010-04-14 13:57:18 +0200 | [diff] [blame] | 66 | tlbentry(CONFIG_SYS_PERIPHERAL_BASE, SZ_16K, 0xEF600000, 4, AC_RW | SA_IG) |
| Feng Kan | 0ce5c86 | 2008-07-08 22:48:42 -0700 | [diff] [blame] | 67 | |
| Stefan Roese | cf6eb6d | 2010-04-14 13:57:18 +0200 | [diff] [blame] | 68 | tlbentry(CONFIG_SYS_PCIE0_XCFGBASE,SZ_16M, 0x00000000, 0xC, AC_RW | SA_IG) |
| 69 | tlbentry(CONFIG_SYS_PCIE1_XCFGBASE,SZ_16M, 0x10000000, 0xC, AC_RW | SA_IG) |
| 70 | tlbentry(CONFIG_SYS_PCIE2_XCFGBASE,SZ_16M, 0x20000000, 0xC, AC_RW | SA_IG) |
| Feng Kan | 0ce5c86 | 2008-07-08 22:48:42 -0700 | [diff] [blame] | 71 | |
| Stefan Roese | cf6eb6d | 2010-04-14 13:57:18 +0200 | [diff] [blame] | 72 | tlbentry(CONFIG_SYS_PCIE0_MEMBASE, SZ_256M, 0x00000000, 0xD, AC_RW | SA_IG) |
| 73 | tlbentry(CONFIG_SYS_PCIE1_MEMBASE, SZ_256M, 0x00000000, 0xE, AC_RW | SA_IG) |
| Feng Kan | 0ce5c86 | 2008-07-08 22:48:42 -0700 | [diff] [blame] | 74 | |
| Stefan Roese | cf6eb6d | 2010-04-14 13:57:18 +0200 | [diff] [blame] | 75 | tlbentry(CONFIG_SYS_PCIE0_REGBASE, SZ_64K, 0x30000000, 0xC, AC_RW | SA_IG) |
| 76 | tlbentry(CONFIG_SYS_PCIE1_REGBASE, SZ_64K, 0x30010000, 0xC, AC_RW | SA_IG) |
| 77 | tlbentry(CONFIG_SYS_PCIE2_REGBASE, SZ_64K, 0x30020000, 0xC, AC_RW | SA_IG) |
| Feng Kan | 0ce5c86 | 2008-07-08 22:48:42 -0700 | [diff] [blame] | 78 | tlbtab_end |