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annotate packages/hal/mn10300/am31/current/src/var_misc.c @ 64:c38311975d4f ecos-sw-2000-01-28

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Merge from eCos master repository on 2000-01-28-04:28:11-GMT
author jlarmour
date Fri, 28 Jan 2000 04:59:39 +0000
parents e97d78785e2d
children bf00f99aec69
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1 //==========================================================================
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2 //
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3 // var_misc.c
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4 //
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5 // HAL CPU variant miscellaneous functions
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6 //
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7 //==========================================================================
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8 //####COPYRIGHTBEGIN####
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9 //
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10 // -------------------------------------------
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11 // The contents of this file are subject to the Red Hat eCos Public License
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12 // Version 1.0 (the "License"); you may not use this file except in
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13 // compliance with the License. You may obtain a copy of the License at
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14 // http://sourceware.cygnus.com/ecos
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15 //
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16 // Software distributed under the License is distributed on an
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17 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
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18 // License for the specific language governing rights and limitations under
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19 // the License.
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20 //
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21 // The Original Code is eCos - Embedded Configurable Operating System,
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22 // released September 30, 1998.
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23 //
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24 // The Initial Developer of the Original Code is Red Hat.
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25 // Portions created by Red Hat are
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26 // Copyright (C) 1998, 1999, 2000 Red Hat, Inc.
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27 // All Rights Reserved.
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28 // -------------------------------------------
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29 //
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30 //####COPYRIGHTEND####
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31 //==========================================================================
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32 //#####DESCRIPTIONBEGIN####
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33 //
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34 // Author(s): nickg
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35 // Contributors: nickg, jlarmour
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36 // Date: 1999-01-21
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37 // Purpose: HAL miscellaneous functions
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38 // Description: This file contains miscellaneous functions provided by the
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39 // HAL.
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40 //
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41 //####DESCRIPTIONEND####
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42 //
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43 //========================================================================*/
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44
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45 #include <pkgconf/hal.h>
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46
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47 #include <cyg/infra/cyg_type.h> // Base types
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48 #include <cyg/infra/cyg_trac.h> // tracing macros
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49 #include <cyg/infra/cyg_ass.h> // assertion macros
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50
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51 #include <cyg/hal/hal_cache.h>
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52
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53 /*------------------------------------------------------------------------*/
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54 /* Variant specific initialization routine. */
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55
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56 void hal_variant_init(void)
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57 {
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58 }
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59
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60 /*------------------------------------------------------------------------*/
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61 /* Cache functions. */
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62
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63 #if !defined(CYG_HAL_MN10300_AM31_SIM)
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64 void cyg_hal_dcache_store(CYG_ADDRWORD base, int size)
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65 {
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66 volatile register CYG_BYTE *way0 = HAL_DCACHE_PURGE_WAY0;
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67 volatile register CYG_BYTE *way1 = HAL_DCACHE_PURGE_WAY1;
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68 register int i;
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69 register CYG_ADDRWORD state;
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70
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71 HAL_DCACHE_IS_ENABLED(state);
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72 if (state)
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73 HAL_DCACHE_DISABLE();
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75 way0 += base & 0x000007f0;
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76 way1 += base & 0x000007f0;
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77 for( i = 0; i < size; i += HAL_DCACHE_LINE_SIZE )
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78 {
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79 *(CYG_ADDRWORD *)way0 = 0;
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80 *(CYG_ADDRWORD *)way1 = 0;
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81 way0 += HAL_DCACHE_LINE_SIZE;
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82 way1 += HAL_DCACHE_LINE_SIZE;
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83 }
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84 if (state)
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85 HAL_DCACHE_ENABLE();
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86 }
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87 #endif
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88
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89
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90 /*------------------------------------------------------------------------*/
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91 /* End of var_misc.c */