u-boot/board/avnet/fx12mm/fx12mm.c
Wolfgang Denk cdb749778a Rename getenv_r() into getenv_f()
While running from flash, i. e. before relocation, we have only a
limited C runtime environment without writable data segment. In this
phase, some configurations (for example with environment in EEPROM)
must not use the normal getenv(), but a special function.  This
function had been called getenv_r(), with the idea that the "_r"
suffix would mean the same as in the _r_eentrant versions of some of
the C library functions (for example getdate vs. getdate_r, getgrent
vs. getgrent_r, etc.).

Unfortunately this was a misleading name, as in U-Boot the "_r"
generally means "running from RAM", i. e. _after_ relocation.

To avoid confusion, rename into getenv_f() [as "running from flash"]

Signed-off-by: Wolfgang Denk <wd@denx.de>
Acked-by: Detlev Zundel <dzu@denx.de>
2010-08-04 00:45:36 +02:00

52 lines
1.3 KiB
C

/*
* (C) Copyright 2008
*
* Author: Xilinx Inc.
*
* Modified by:
* Georg Schardt <schardt@team-ctech.de>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* 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., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
*/
#include <config.h>
#include <common.h>
#include <asm/processor.h>
int checkboard(void)
{
char tmp[64];
char *s, *e;
int i = getenv_f("serial", tmp, sizeof(tmp));
if (i < 0) {
printf("Avnet Virtex4 FX12 with no serial #");
} else {
for (e = tmp; *e; ++e) {
if (*e == ' ')
break;
}
printf("Avnet Virtex4 FX12 Minimodul # ");
for (s = tmp; s < e; ++s)
putc(*s);
}
putc('\n');
return 0;
}