64 lines
1.6 KiB
C
64 lines
1.6 KiB
C
/*
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* (C) Copyright 2011 Henrik Nordstrom <henrik@henriknordstrom.net>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License 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 this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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/*
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Build instructions:
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arm-none-eabi-gcc -g -Os -fno-common -fno-builtin -ffreestanding -nostdinc -mno-thumb-interwork -Wall -Wstrict-prototypes -fno-stack-protector -Wno-format-nonliteral -Wno-format-security -fno-toplevel-reorder fel-pio.c -nostdlib -o fel-pio.elf
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arm-none-eabi-objcopy -O binary fel-pio.elf fel-pio.bin
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arm-none-eabi-nm fel-pio.o
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*/
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void _pio_to_sram(void);
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void _sram_to_pio(void);
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void pio_to_sram(void)
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{
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_pio_to_sram();
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}
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void sram_to_pio(void)
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{
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_sram_to_pio();
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}
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void _pio_to_sram(void)
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{
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unsigned long *a = (void *)0x1c20800;
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unsigned long *b = (void *)0x3000;
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int i = 0x228 >> 2;
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while (i--) {
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*b++ = *a++;
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}
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}
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void _sram_to_pio(void)
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{
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unsigned long *a = (void *)0x1c20800;
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unsigned long *b = (void *)0x3000;
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int i = 0x228 >> 2;
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while (i--) {
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*a++ = *b++;
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}
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}
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