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https://github.com/brain-hackers/u-boot-brain
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cdb749778a
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>
53 lines
1.3 KiB
C
53 lines
1.3 KiB
C
/*
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* (C) Copyright 2008
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*
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* Author: Xilinx Inc.
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*
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* Modified by:
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* Georg Schardt <schardt@team-ctech.de>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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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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#include <config.h>
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#include <common.h>
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#include <asm/processor.h>
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int checkboard(void)
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{
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char tmp[64];
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char *s, *e;
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int i = getenv_f("serial", tmp, sizeof(tmp));
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if (i < 0) {
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printf("Avnet Virtex4 FX12 with no serial #");
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} else {
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for (e = tmp; *e; ++e) {
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if (*e == ' ')
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break;
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}
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printf("Avnet Virtex4 FX12 Minimodul # ");
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for (s = tmp; s < e; ++s)
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putc(*s);
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}
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putc('\n');
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return 0;
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}
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