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##=============================================================================
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##
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## platform.S
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##
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## Fujitsu Starterkit MB91302 platform code
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##
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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 Free Software Foundation, Inc.
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##
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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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##
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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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##
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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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##
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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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##
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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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##
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## Author(s): larsi
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## Contributors:
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## Date: 2007-07-09
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## Purpose: Fujitsu Starterkit MB91302 platform code
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## Description: Platform specific code for Fujitsu Starterkit MB91302 board.
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##
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##
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##
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##
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######DESCRIPTIONEND####
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##
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##=============================================================================
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#include
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#include
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#ifdef CYGPKG_KERNEL
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# include
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#endif
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#include
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##-----------------------------------------------------------------------------
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## platforms special entry point.
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## it copies the code from hal_fr30_ram_startup_trampoline until
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## hal_fr30_ram_startup_trampoline_end to ram and jumps there. The code there
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## is for mapping the flash to 0x1000000 and then jumping to real entry
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## (_start).
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#if defined(CYG_HAL_STARTUP_ROM) || defined(CYG_HAL_STARTUP_ROMRAM)
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.section ".rom_startup_trampoline","ax"
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.balign 4
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.global hal_fr30_rom_startup_trampoline
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hal_fr30_rom_startup_trampoline:
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# disable interrupts and set priority to lowest (=disable)
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andccr #0xef
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stilm #0x0
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ldi:32 #__rom_trampoline_start - 4, r11
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ldi:32 #__ram_trampoline_start - 4, r13
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ldi:32 #__rom_trampoline_end - 8, r12
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1:
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add #0x4, r11
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add #0x4, r13
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ld @r11, r0
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cmp r12, r11
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ble:d 1b
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st r0, @r13
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## jump to the code in ram
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ldi:32 #hal_fr30_ram_startup_trampoline, r0
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jmp @r0
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#endif
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##-----------------------------------------------------------------------------
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# Platform Initialization.
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# This code is copied to a location in RAM on startup and is executed there.
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# It maps the the FLASH chip to 0x1000000 and sets the TBR to the new location
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# of the hardware vector table (hal_fr30_vector_table). So we can reach the full
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# range of the FLASH and it can be used for flashfilesystem. After that it jumps
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# to the real application.
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#if defined(CYG_HAL_STARTUP_ROM) || defined(CYG_HAL_STARTUP_ROMRAM)
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.section ".ram_startup_trampoline","ax"
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.balign 4
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.global hal_fr30_ram_startup_trampoline
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hal_fr30_ram_startup_trampoline:
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hal_flash_init_from_ram
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## map TBR to the new location (for vector tables)
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ldi:32 #0x10ffc00, r0
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mov r0, tbr
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## jump to real startup
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ldi:32 #_start, r0
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jmp @r0
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#endif
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#==============================================================================
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# Vector table for storage in flash, version for skmb91302 platform.
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# it differs from variants/archs version in that uses a different reset vector
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# that points to the special startup procedure that jumps to the normal entry
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# (_start) later.
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# base address is 0x000FFC00 and 0x10ffc00 after remapping the flash.
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# This address stores the vector address for number 255
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# address 0x000FFFFC (0x10ffffc) is the last vector, the reset vector, which
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# is not alterable. Vectors 255 to 80 are used by the INT instruction and set
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# to 0 here for now ...
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#if defined(CYG_HAL_STARTUP_ROM) || defined(CYG_HAL_STARTUP_ROMRAM)
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.section ".rom_vectors","ax"
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.balign 4
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.global hal_fr30_vector_table
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hal_fr30_vector_table:
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.rept 255-80 + 1
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.long 0x0
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.endr
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.rept 79-67 + 1
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.long 0x0
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.endr
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.long 0x0
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.long 0x0
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.long 0x0
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# number 63 first interrupt source
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.long hal_fr30_irq_63
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.long hal_fr30_irq_62
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.long hal_fr30_irq_61
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.long hal_fr30_irq_60
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.long hal_fr30_irq_59
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.long hal_fr30_irq_58
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.long hal_fr30_irq_57
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.long hal_fr30_irq_56
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.long hal_fr30_irq_55
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.long hal_fr30_irq_54
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.long hal_fr30_irq_53
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.long hal_fr30_irq_52
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.long hal_fr30_irq_51
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.long hal_fr30_irq_50
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.long hal_fr30_irq_49
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.long hal_fr30_irq_48
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.long hal_fr30_irq_47
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.long hal_fr30_irq_46
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.long hal_fr30_irq_45
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.long hal_fr30_irq_44
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.long hal_fr30_irq_43
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.long hal_fr30_irq_42
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.long hal_fr30_irq_41
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.long hal_fr30_irq_40
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.long hal_fr30_irq_39
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.long hal_fr30_irq_38
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.long hal_fr30_irq_37
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.long hal_fr30_irq_36
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.long hal_fr30_irq_35
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.long hal_fr30_irq_34
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.long hal_fr30_irq_33
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.long hal_fr30_irq_32
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.long hal_fr30_irq_31
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.long hal_fr30_irq_30
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.long hal_fr30_irq_29
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.long hal_fr30_irq_28
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.long hal_fr30_irq_27
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.long hal_fr30_irq_26
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.long hal_fr30_irq_25
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.long hal_fr30_irq_24
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.long hal_fr30_irq_23
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.long hal_fr30_irq_22
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.long hal_fr30_irq_21
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.long hal_fr30_irq_20
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.long hal_fr30_irq_19
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.long hal_fr30_irq_18
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.long hal_fr30_irq_17
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.long hal_fr30_irq_16
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.long hal_fr30_irq_15
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.long hal_fr30_exception_noerr_14
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.long hal_fr30_exception_noerr_13
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.long hal_fr30_exception_noerr_12
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.long hal_fr30_exception_noerr_11
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.long hal_fr30_exception_noerr_10
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.long hal_fr30_exception_noerr_9
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.long hal_fr30_exception_noerr_8
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.long hal_fr30_exception_noerr_7
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.long hal_fr30_exception_noerr_6
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.long hal_fr30_exception_noerr_5
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.long hal_fr30_exception_noerr_4
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.long hal_fr30_exception_noerr_3
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.long hal_fr30_exception_noerr_2
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# mode vector (only the first of the four byte is relevant)
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.byte 0x1
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.byte 0
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.byte 0
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.byte 0
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# reset vector
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.long hal_fr30_rom_startup_trampoline
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#endif /*CYG_HAL_STARTUP_ROM || CYG_HAL_STARTUP_ROMRAM*/
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##-----------------------------------------------------------------------------
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## end of platform.S
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