Primary Bootloader (before u-boot) in sysmoBTSv2
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/*
* util.c - miscellaneous functions
*
* Copyright (C) 2008 Hugo Villeneuve <hugo@hugovil.com>
*
* Based on TI DaVinci Flash and Boot Utilities, original copyright follows:
* Copyright 2008 Texas Instruments, Inc. <www.ti.com>
*
* This program 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 of the License, or
* (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <stdint.h>
#include <string.h>
#include "common.h"
#define MAXSTRLEN 256
/* Endian swap */
void
endian_data(uint32_t *data)
{
uint32_t temp = *data;
*data = ENDIAN_SWAP(temp);
}
void *
memcpy(void *dest, const void *src, size_t n)
{
const uint8_t *src8 = src;
uint8_t *dst8 = dest;
for (; n > 0; n--) {
*dst8 = *src8;
dst8++;
src8++;
}
return dest;
}
/* Get string length by finding null terminating char */
size_t
strlen(const char *s)
{
int i = 0;
while ((s[i] != 0) && (i < MAXSTRLEN))
i++;
if (i == MAXSTRLEN)
return -1;
else
return i;
}
/* Simple wait loop */
void
waitloop(int32_t loopcnt)
{
for (; loopcnt > 0; loopcnt--)
asm(" NOP");
}
void
sleep_ms(int ms)
{
for (; ms > 0; ms--)
waitloop(20000);
}