| 1 | //========================================================================== |
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| 2 | // |
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| 3 | // xscale_misc.c |
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| 4 | // |
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| 5 | // HAL misc support code for Intel XScale cores. |
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| 6 | // |
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| 7 | //========================================================================== |
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| 8 | //####ECOSGPLCOPYRIGHTBEGIN#### |
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| 9 | // ------------------------------------------- |
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| 10 | // This file is part of eCos, the Embedded Configurable Operating System. |
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| 11 | // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc. |
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| 12 | // |
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| 13 | // eCos is free software; you can redistribute it and/or modify it under |
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| 14 | // the terms of the GNU General Public License as published by the Free |
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| 15 | // Software Foundation; either version 2 or (at your option) any later version. |
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| 16 | // |
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| 17 | // eCos is distributed in the hope that it will be useful, but WITHOUT ANY |
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| 18 | // WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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| 19 | // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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| 20 | // for more details. |
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| 21 | // |
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| 22 | // You should have received a copy of the GNU General Public License along |
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| 23 | // with eCos; if not, write to the Free Software Foundation, Inc., |
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| 24 | // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. |
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| 25 | // |
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| 26 | // As a special exception, if other files instantiate templates or use macros |
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| 27 | // or inline functions from this file, or you compile this file and link it |
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| 28 | // with other works to produce a work based on this file, this file does not |
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| 29 | // by itself cause the resulting work to be covered by the GNU General Public |
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| 30 | // License. However the source code for this file must still be made available |
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| 31 | // in accordance with section (3) of the GNU General Public License. |
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| 32 | // |
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| 33 | // This exception does not invalidate any other reasons why a work based on |
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| 34 | // this file might be covered by the GNU General Public License. |
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| 35 | // |
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| 36 | // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc. |
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| 37 | // at http://sources.redhat.com/ecos/ecos-license/ |
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| 38 | // ------------------------------------------- |
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| 39 | //####ECOSGPLCOPYRIGHTEND#### |
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| 40 | //========================================================================== |
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| 41 | //#####DESCRIPTIONBEGIN#### |
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| 42 | // |
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| 43 | // Author(s): msalter |
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| 44 | // Contributors: msalter |
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| 45 | // Date: 2002-10-18 |
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| 46 | // Purpose: XScale core HAL support |
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| 47 | // Description: Implementations of HAL interfaces |
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| 48 | // |
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| 49 | //####DESCRIPTIONEND#### |
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| 50 | // |
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| 51 | //========================================================================*/ |
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| 52 | |
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| 53 | #include <pkgconf/hal.h> |
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| 54 | #include <pkgconf/system.h> |
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| 55 | #include CYGBLD_HAL_PLATFORM_H |
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| 56 | #include CYGHWR_MEMORY_LAYOUT_H |
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| 57 | |
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| 58 | void |
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| 59 | hal_xscale_core_init(void) |
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| 60 | { |
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| 61 | // Initialize debug control unit to sane state |
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| 62 | asm volatile ("mov r0,#0\n" |
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| 63 | "mcr p15,0,r0,c14,c8,0\n" // ibcr0 |
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| 64 | "mcr p15,0,r0,c14,c9,0\n" // ibcr1 |
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| 65 | "mcr p15,0,r0,c14,c4,0\n" // dbcon |
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| 66 | "mov r0,#0x80000000\n" |
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| 67 | "mcr p14,0,r0,c10,c0,0\n" // dcsr |
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| 68 | : /* no outputs */ |
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| 69 | : /* no inputs */ |
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| 70 | : "r0" ); |
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| 71 | } |
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| 72 | |
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| 73 | /*------------------------------------------------------------------------*/ |
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| 74 | // EOF xscale_misc.c |
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| 75 | |
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