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https://github.com/brain-hackers/u-boot-brain
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3eb90bad65
According to the PPC reference implementation the udelay() function is responsible for resetting the watchdog timer as frequently as needed. Most other architectures do not meet that requirement, so long-running operations might result in a watchdog reset. This patch adds a generic udelay() function which takes care of resetting the watchdog before calling an architecture-specific __udelay(). Signed-off-by: Ingo van Lil <inguin@gmx.de>
96 lines
2.0 KiB
C
96 lines
2.0 KiB
C
/*
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* (C) Copyright 2007 Semihalf
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*
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* Written by: Rafal Jaworowski <raj@semihalf.com>
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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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* This is is a set of wrappers/stubs that allow to use certain routines from
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* U-Boot's lib_generic in the standalone app. This way way we can re-use
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* existing code e.g. operations on strings and similar.
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*
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*/
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#include <common.h>
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#include <linux/types.h>
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#include <api_public.h>
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#include "glue.h"
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/*
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* printf() and vprintf() are stolen from u-boot/common/console.c
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*/
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void printf (const char *fmt, ...)
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{
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va_list args;
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uint i;
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char printbuffer[256];
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va_start (args, fmt);
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/* For this to work, printbuffer must be larger than
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* anything we ever want to print.
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*/
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i = vsprintf (printbuffer, fmt, args);
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va_end (args);
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/* Print the string */
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ub_puts (printbuffer);
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}
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void vprintf (const char *fmt, va_list args)
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{
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uint i;
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char printbuffer[256];
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/* For this to work, printbuffer must be larger than
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* anything we ever want to print.
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*/
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i = vsprintf (printbuffer, fmt, args);
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/* Print the string */
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ub_puts (printbuffer);
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}
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void putc (const char c)
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{
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ub_putc(c);
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}
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void __udelay(unsigned long usec)
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{
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ub_udelay(usec);
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}
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void do_reset (void)
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{
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ub_reset();
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}
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void *malloc (size_t len)
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{
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return NULL;
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}
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void hang (void)
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{
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while (1) ;
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}
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