| Tom Warren | 41b6838 | 2011-01-27 10:58:05 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * SoC-specific setup info |
| 3 | * |
| 4 | * (C) Copyright 2010,2011 |
| 5 | * NVIDIA Corporation <www.nvidia.com> |
| 6 | * |
| 7 | * See file CREDITS for list of people who contributed to this |
| 8 | * project. |
| 9 | * |
| 10 | * This program is free software; you can redistribute it and/or |
| 11 | * modify it under the terms of the GNU General Public License as |
| 12 | * published by the Free Software Foundation; either version 2 of |
| 13 | * the License, or (at your option) any later version. |
| 14 | * |
| 15 | * This program is distributed in the hope that it will be useful, |
| 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 18 | * GNU General Public License for more details. |
| 19 | * |
| 20 | * You should have received a copy of the GNU General Public License |
| 21 | * along with this program; if not, write to the Free Software |
| 22 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| 23 | * MA 02111-1307 USA |
| 24 | */ |
| 25 | |
| 26 | #include <config.h> |
| 27 | #include <version.h> |
| 28 | |
| 29 | _TEXT_BASE: |
| 30 | .word CONFIG_SYS_TEXT_BASE @ sdram load addr from config file |
| 31 | |
| 32 | .global invalidate_dcache |
| 33 | invalidate_dcache: |
| 34 | mov pc, lr |
| 35 | |
| 36 | .align 5 |
| 37 | .global reset_cpu |
| 38 | reset_cpu: |
| 39 | ldr r1, rstctl @ get addr for global reset |
| 40 | @ reg |
| 41 | ldr r3, [r1] |
| 42 | orr r3, r3, #0x10 |
| 43 | str r3, [r1] @ force reset |
| 44 | mov r0, r0 |
| 45 | _loop_forever: |
| 46 | b _loop_forever |
| 47 | rstctl: |
| 48 | .word PRM_RSTCTRL |
| 49 | |
| 50 | .globl lowlevel_init |
| 51 | lowlevel_init: |
| 52 | ldr sp, SRAM_STACK |
| 53 | str ip, [sp] |
| 54 | mov ip, lr |
| 55 | bl s_init @ go setup pll, mux & memory |
| 56 | ldr ip, [sp] |
| 57 | mov lr, ip |
| 58 | |
| 59 | mov pc, lr @ back to arch calling code |
| 60 | |
| 61 | @ the literal pools origin |
| 62 | .ltorg |
| 63 | |
| 64 | SRAM_STACK: |
| 65 | .word LOW_LEVEL_SRAM_STACK |