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https://github.com/brain-hackers/u-boot-brain
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77bfa6b436
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>
34 lines
993 B
C
34 lines
993 B
C
/*
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* Processor reset using WDT.
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*
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* Copyright (C) 2012 Dmitry Bondar <bond@inmys.ru>
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* Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net>
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*
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* This file is released under the terms of GPL v2 and any later version.
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* See the file COPYING in the root directory of the source tree for details.
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*/
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#include <common.h>
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#include <asm/io.h>
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#include <asm/arch/timer_defs.h>
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#include <asm/arch/hardware.h>
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void reset_cpu(unsigned long a)
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{
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struct davinci_timer *const wdttimer =
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(struct davinci_timer *)DAVINCI_TIMER1_BASE;
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writel(0x08, &wdttimer->tgcr);
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writel(readl(&wdttimer->tgcr) | 0x03, &wdttimer->tgcr);
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writel(0, &wdttimer->tim12);
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writel(0, &wdttimer->tim34);
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writel(0, &wdttimer->prd12);
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writel(0, &wdttimer->prd34);
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writel(readl(&wdttimer->tcr) | 0x40, &wdttimer->tcr);
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writel(readl(&wdttimer->wdtcr) | 0x4000, &wdttimer->wdtcr);
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writel(0xa5c64000, &wdttimer->wdtcr);
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writel(0xda7e4000, &wdttimer->wdtcr);
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writel(0x4000, &wdttimer->wdtcr);
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while (1)
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/*nothing*/;
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}
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