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[/] [openrisc/] [trunk/] [rtos/] [ecos-3.0/] [packages/] [hal/] [powerpc/] [mpc5xx/] [current/] [src/] [var_misc.c] - Rev 791
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//========================================================================== // // var_misc.c // // HAL implementation miscellaneous functions // //========================================================================== // ####ECOSGPLCOPYRIGHTBEGIN#### // ------------------------------------------- // This file is part of eCos, the Embedded Configurable Operating System. // Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc. // // eCos is free software; you can redistribute it and/or modify it under // the terms of the GNU General Public License as published by the Free // Software Foundation; either version 2 or (at your option) any later // version. // // eCos is distributed in the hope that it will be useful, but WITHOUT // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License // for more details. // // You should have received a copy of the GNU General Public License // along with eCos; if not, write to the Free Software Foundation, Inc., // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. // // As a special exception, if other files instantiate templates or use // macros or inline functions from this file, or you compile this file // and link it with other works to produce a work based on this file, // this file does not by itself cause the resulting work to be covered by // the GNU General Public License. However the source code for this file // must still be made available in accordance with section (3) of the GNU // General Public License v2. // // This exception does not invalidate any other reasons why a work based // on this file might be covered by the GNU General Public License. // ------------------------------------------- // ####ECOSGPLCOPYRIGHTEND#### //========================================================================== //#####DESCRIPTIONBEGIN#### // // Author(s): Bob Koninckx // Contributors: Bob Koninckx // Date: 2001-12-10 // Purpose: HAL miscellaneous functions // Description: This file contains miscellaneous functions provided by the // HAL. // //####DESCRIPTIONEND#### // //========================================================================== #include <pkgconf/hal.h> #define CYGARC_HAL_COMMON_EXPORT_CPU_MACROS #include <cyg/hal/ppc_regs.h> #include <cyg/infra/cyg_type.h> // types #include <cyg/infra/diag.h> // diag_printf #include <cyg/hal/hal_mem.h> // some of the functions defined here //-------------------------------------------------------------------------- void hal_variant_init(void) { // Disable serialization { cyg_uint32 ictrl; CYGARC_MFSPR (ICTRL, ictrl); ictrl |= ICTRL_NOSERSHOW; CYGARC_MTSPR (ICTRL, ictrl); } } //-------------------------------------------------------------------------- // Variant specific idle thread action. bool hal_variant_idle_thread_action( cyg_uint32 count ) { // Let architecture idle thread action run return true; } //--------------------------------------------------------------------------- // Use MMU resources to map memory regions. // Takes and returns an int used to ID the MMU resource to use. This ID // is increased as resources are used and should be used for subsequent // invocations. // // The MPC5xx CPUs do not have cache. Leave these functions empty int cyg_hal_map_memory (int id,CYG_ADDRESS virt, CYG_ADDRESS phys, cyg_int32 size, cyg_uint8 flags) { return 0; } void cyg_hal_clear_MMU (void) { } //-------------------------------------------------------------------------- // End of var_misc.c
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