Hardware Design: SIE
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| 1 | /* |
| 2 | * Copyright (c) 2009, yajin <yajin@vm-kernel.org> |
| 3 | * Copyright (c) 2005-2008 Ingenic Semiconductor Inc. |
| 4 | * Author: <jlwei@ingenic.cn> |
| 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 | |
| 12 | #include <jz4740.h> |
| 13 | #include <board.h> |
| 14 | |
| 15 | .text |
| 16 | .set noreorder |
| 17 | .global startup |
| 18 | startup: |
| 19 | /* |
| 20 | * Disable all interrupts |
| 21 | */ |
| 22 | la $8, 0xB0001004 /* INTC_IMR */ |
| 23 | li $9, 0xffffffff |
| 24 | sw $9, 0($8) |
| 25 | |
| 26 | /* |
| 27 | * CU0=UM=EXL=IE=0, BEV=ERL=1, IP2~7=1 |
| 28 | */ |
| 29 | li $26, 0x0040FC04 |
| 30 | mtc0 $26, $12 /* CP0_STATUS */ |
| 31 | |
| 32 | /* IV=1, use the specical interrupt vector (0x200) */ |
| 33 | li $26, 0x00800000 |
| 34 | mtc0 $26, $13 /* CP0_CAUSE */ |
| 35 | |
| 36 | /* Setup stack pointer */ |
| 37 | la $29, 0x81000000 |
| 38 | |
| 39 | /* Jump to the main routine */ |
| 40 | j main_func |
| 41 | nop |
| 42 | .set reorder |
| 43 | |
| 44 |
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