/* * Processor reset using WDT. * * Copyright (C) 2012 Dmitry Bondar * Copyright (C) 2007 Sergey Kubushyn * * SPDX-License-Identifier: GPL-2.0+ */ #include #include #include #include void reset_cpu(unsigned long a) { struct davinci_timer *const wdttimer = (struct davinci_timer *)DAVINCI_WDOG_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*/; }