#ifndef CYGONCE_HAL_PLATFORM_INC
#define CYGONCE_HAL_PLATFORM_INC
##=============================================================================
##
##	platform.inc
##
##	SH/CQ7708 board assembler header file
##
##=============================================================================
## ####ECOSGPLCOPYRIGHTBEGIN####                                            
## -------------------------------------------                              
## This file is part of eCos, the Embedded Configurable Operating System.   
## Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
##
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## the terms of the GNU General Public License as published by the Free     
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## version.                                                                 
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## FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License    
## for more details.                                                        
##
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## 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   
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## General Public License v2.                                               
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## ####ECOSGPLCOPYRIGHTEND####                                              
##=============================================================================
#######DESCRIPTIONBEGIN####
##
## Author(s): 	jskov
## Contributors:jskov
## Date:	2000-02-02
## Purpose:	SH/CQ7708 board definitions.
## Description:	This file contains various definitions and macros that are
##              useful for writing assembly code for the SH/CQ7708 board.
## Usage:
##		#include <cyg/hal/platform.inc>
##		...
##		
##
######DESCRIPTIONEND####
##
##=============================================================================

#include <pkgconf/hal.h>

#include <cyg/hal/sh_offsets.inc>
#include <cyg/hal/sh_regs.h>

#------------------------------------------------------------------------------
# Hardware initialization.

        .macro  hal_hardware_init
        // Set up the Bus State Controller
        mova     BSC_settings_table,r0
        mov      r0,r3
1:      mov.w    @r3+,r0                // Address (or zero)
        cmp/eq   #0,r0
        bt       2f
        mov.w    @r3+,r1                // data
        bra      1b
         mov.w    r1,@r0                // delay slot

        .align  2

BSC_settings_table:
        # These are the settings set by the ROM Monitor.

	.word   (CYGARC_REG_FRQCR & 0x0000FFFF)
	.word   CYGARC_REG_FRQCR_INIT

        # BCR1: Areas 3 are SDRAM
        .word   (CYGARC_REG_BCR1 & 0x0000FFFF)
        .word   0x0010
        # BCR2: Bus size of areas 2,4 are 8 bits
        .word   (CYGARC_REG_BCR2 & 0x0000FFFF)
        .word   0x3ddc
        # WCR1: 3 wait-state cycles inserted for all areas
        .word   (CYGARC_REG_WCR1 & 0x0000FFFF)
        .word   0x3fff
        # WCR2: cs0=8wait cs1=0wait cs2=0wait cs3=2wait cs4=4wait */
        .word   (CYGARC_REG_WCR2 & 0x0000FFFF)
        .word   0x0246
        # MCR:  dram setting 10 bit
        .word   (CYGARC_REG_MCR & 0x0000FFFF)
        .word   0x0074
        # RTCSR: refresh timer control
        .word   (CYGARC_REG_RTCSR & 0x0000FFFF)
        .word   (0xa500 | 0x0010)
        # RTCOR: refresh time constant
        .word   (CYGARC_REG_RTCOR & 0x0000FFFF)
        .word   (0xa500 | 0x003a)
        
        # Table end
        .word   0
        
        .align  2
2:
        .endm
        
#------------------------------------------------------------------------------
# Monitor initialization.

#ifndef CYGPKG_HAL_SH_MON_DEFINED

#if	defined(CYG_HAL_STARTUP_ROM) ||			\
	(	defined(CYG_HAL_STARTUP_RAM) &&		\
		!defined(CYGSEM_HAL_USE_ROM_MONITOR))

	# If we are starting up from ROM, or we are starting in
	# RAM and NOT using a ROM monitor, initialize the VSR table.

	.macro	hal_mon_init
        mov.l   $hal_vsr_table,r3
	# Write exception vectors
	mov.l   $cyg_hal_default_exception_vsr,r4
	mov     #CYGNUM_HAL_VSR_EXCEPTION_COUNT,r5
1:	mov.l   r4,@r3
        add     #4,r3
	dt	r5
	bf	1b
	# Write interrupt vector
	mov.l   $cyg_hal_default_interrupt_vsr,r4
	mov.l   $hal_vsr_table,r3
	add	#CYGNUM_HAL_VECTOR_INTERRUPT*4,r3
	mov.l   r4,@r3
	bra	2f
	 nop
        .align  2

	SYM_PTR_REF(cyg_hal_default_exception_vsr)
	SYM_PTR_REF(cyg_hal_default_interrupt_vsr)
	SYM_PTR_REF(hal_vsr_table)
2:
	.endm

#elif defined(CYG_HAL_STARTUP_RAM) && defined(CYGSEM_HAL_USE_ROM_MONITOR)

	# Initialize the VSR table entries
	# We only take control of the interrupt vector,
	# the rest are left to the ROM for now...

	.macro	hal_mon_init
	# Write interrupt vector
        mov.l   $hal_vsr_table,r3
	mov.l   $cyg_hal_default_interrupt_vsr,r4
	add	#CYGNUM_HAL_VECTOR_INTERRUPT*4,r3
	mov.l   r4,@r3
	bra	2f
	 nop
        .align  2

	SYM_PTR_REF(cyg_hal_default_interrupt_vsr)
	SYM_PTR_REF(hal_vsr_table)
2:
	.endm

#else

	.macro	hal_mon_init
	.endm

#endif


#define CYGPKG_HAL_SH_MON_DEFINED

#endif // CYGPKG_HAL_SH_MON_DEFINED

#endif // CYGONCE_HAL_PLATFORM_INC
