4.104.114.84.95
Last change
on this file since 7cc96f5 was
4564566,
checked in by Joel Sherrill <joel.sherrill@…>, on 09/13/00 at 13:45:05
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2000-09-13 Emmanuel Raguet <raguet@…>
- vegaplus BSP submitted by Emmanuel Raguet <raguet@…> and
Eric Valette <valette@…>.
- vegaplus/bsp_specs, configure.in, console/Makefile.am,
include/Makefile.am, include/bsp.h, include/registers.h,
irq/Makefile.am, irq/bsp_irq_asm.S, irq/bsp_irq_init.c, irq/irq.c,
irq/irq.h, start/Makefile.am, start/start.S, startup/Makefile.am,
startup/bspstart.c, startup/exit.c, startup/linkcmds,
wrapup/Makefile.am: New files.
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-
Property mode set to
100644
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File size:
962 bytes
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1 | /* irq_init.c |
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2 | * |
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3 | * This file contains the implementation of rtems initialization |
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4 | * related to interrupt handling. |
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5 | * |
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6 | * CopyRight (C) 2000 Canon Research Centre France SA. |
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7 | * Emmanuel Raguet, mailto:raguet@crf.canon.fr |
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8 | * |
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9 | * The license and distribution terms for this file may be |
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10 | * found in the file LICENSE in this distribution or at |
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11 | * http://www.OARcorp.com/rtems/license.html. |
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12 | * |
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13 | * $Id$ |
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14 | */ |
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15 | #include <irq.h> |
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16 | #include <bsp.h> |
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17 | #include <registers.h> |
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18 | |
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19 | |
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20 | void BSP_rtems_irq_mngt_init() { |
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21 | |
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22 | /* Initialize the vector table address in internal RAM */ |
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23 | Regs[INTTAB] = VECTOR_TABLE; |
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24 | |
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25 | /* Initialize the GLOBAL INT CONTROL register */ |
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26 | Regs[INTGCNTL] = 0x00; |
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27 | |
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28 | /* Mask all the interrupts */ |
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29 | Regs[INTMASK] = 0xFFFF; |
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30 | |
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31 | /* Unmask the 2 arm interrupts IRQ and FIQ on the INT controller */ |
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32 | Regs[INTMASKALL] = 0x0; |
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33 | |
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34 | /* Ack pending interrupt */ |
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35 | while ( ( Regs[INTSTAT] & 0xF433 ) != 0 ) { |
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36 | Regs[INTACK] = 0xFFFF; |
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37 | Regs[INTEOI] = EOI; |
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38 | } |
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39 | } |
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