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#ifndef CYGONCE_HAL_VARIANT_INC
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#define CYGONCE_HAL_VARIANT_INC
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|==========================================================================
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| variant.inc
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| MCF5272 variant assembler header file
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|==========================================================================
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| ####ECOSGPLCOPYRIGHTBEGIN####
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| -------------------------------------------
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| This file is part of eCos, the Embedded Configurable Operating System.
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| Copyright (C) 1998, 1999, 2000, 2001, 2002, 2006 Free Software Foundation, Inc.
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| eCos is free software; you can redistribute it and/or modify it under
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| the terms of the GNU General Public License as published by the Free
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| Software Foundation; either version 2 or (at your option) any later
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| version.
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| eCos is distributed in the hope that it will be useful, but WITHOUT
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| ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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| FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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| for more details.
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| You should have received a copy of the GNU General Public License
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| along with eCos; if not, write to the Free Software Foundation, Inc.,
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| 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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| As a special exception, if other files instantiate templates or use
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| macros or inline functions from this file, or you compile this file
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| and link it with other works to produce a work based on this file,
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| this file does not by itself cause the resulting work to be covered by
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| the GNU General Public License. However the source code for this file
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| must still be made available in accordance with section (3) of the GNU
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| General Public License v2.
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| This exception does not invalidate any other reasons why a work based
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| on this file might be covered by the GNU General Public License.
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| -------------------------------------------
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| ####ECOSGPLCOPYRIGHTEND####
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|=============================================================================
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|#####DESCRIPTIONBEGIN####
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| Author(s): Enrico Piria
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| Contributors:
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| Date: 2005-25-06
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| Purpose: MCF5272 variant definitions.
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| Description: This file contains the definitions specific to the
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| CPU variant, used in the architecture HAL assembler file.
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| Usage: Included by "vectors.S". Do not use directly.
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|####DESCRIPTIONEND####
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|==========================================================================
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#include
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| -----------------------------------------------------------------------------
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| CPU specific macros. These provide a common assembler interface to
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| operations that may have CPU specific implementations on different
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| variants of the architecture.
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| CPU initialization macro
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.macro hal_cpu_init
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| Invalidate and disable the cache and ACRs.
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move.l #0x01000000,%d0
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movec %d0,%cacr
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move.l #0x0,%d0
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movec %d0,%acr0
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movec %d0,%acr1
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.endm
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| ----------------------------------------------------------------------------
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| This macro retrieves the IPL of the current interrupt from the
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| interrupt controller register. This is needed because on inetrrupt entry
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| all interrupts are disabled by writing to the status register, and thus
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| loosing the current IPL.
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| Input: interrupt vector number in d0
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| Output: IPL associated to interrupt in d0
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.macro hal_variant_retrieve_ipl
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| Subtract minimum interrupt vector number
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sub.l #CYGNUM_HAL_ISR_MIN,%d0
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| Load IPL table address in a0
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lea cyg_hal_ILVL_table,%a0
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| Retrieve IPL level for current interrupt
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move.b (%a0,%d0.l),%d0
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.endm
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| ----------------------------------------------------------------------------
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| end of variant.inc
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#endif // ifndef CYGONCE_HAL_VARIANT_INC
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