u-boot/cpu/blackfin/os_log.c

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/*
* functions for handling OS log buffer
*
* Copyright (c) 2009 Analog Devices Inc.
*
* Licensed under the 2-clause BSD.
*/
#include <common.h>
#define OS_LOG_MAGIC 0xDEADBEEF
#define OS_LOG_MAGIC_ADDR ((unsigned long *)0x4f0)
#define OS_LOG_PTR_ADDR ((char **)0x4f4)
bool bfin_os_log_check(void)
{
if (*OS_LOG_MAGIC_ADDR != OS_LOG_MAGIC)
return false;
*OS_LOG_MAGIC_ADDR = 0;
return true;
}
void bfin_os_log_dump(void)
{
char *log = *OS_LOG_PTR_ADDR;
while (*log) {
puts(log);
log += strlen(log) + 1;
}
}