u-boot/arch/arm/cpu/arm926ejs/davinci/reset.c
Tom Rini 77bfa6b436 davinci, c6x: Always use C version of reset code
We can safely use the same reset code written in C for both Davinci and
C6X platforms.  In addition the C version of the code is marginally
smaller on Davinci.

Tested-by: Matt Porter <mporter@ti.com>
Signed-off-by: Tom Rini <trini@ti.com>
2012-09-01 14:58:19 +02:00

33 lines
993 B
C

/*
* Processor reset using WDT.
*
* Copyright (C) 2012 Dmitry Bondar <bond@inmys.ru>
* Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net>
*
* This file is released under the terms of GPL v2 and any later version.
* See the file COPYING in the root directory of the source tree for details.
*/
#include <common.h>
#include <asm/io.h>
#include <asm/arch/timer_defs.h>
#include <asm/arch/hardware.h>
void reset_cpu(unsigned long a)
{
struct davinci_timer *const wdttimer =
(struct davinci_timer *)DAVINCI_TIMER1_BASE;
writel(0x08, &wdttimer->tgcr);
writel(readl(&wdttimer->tgcr) | 0x03, &wdttimer->tgcr);
writel(0, &wdttimer->tim12);
writel(0, &wdttimer->tim34);
writel(0, &wdttimer->prd12);
writel(0, &wdttimer->prd34);
writel(readl(&wdttimer->tcr) | 0x40, &wdttimer->tcr);
writel(readl(&wdttimer->wdtcr) | 0x4000, &wdttimer->wdtcr);
writel(0xa5c64000, &wdttimer->wdtcr);
writel(0xda7e4000, &wdttimer->wdtcr);
writel(0x4000, &wdttimer->wdtcr);
while (1)
/*nothing*/;
}