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/*
* Copyright (C) 2013 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
*
* Under GPLv2 only
*/
#include <io.h>
#include <mach/at91_rtt.h>
/*
* As the RTT is powered by the backup power so if the interrupt
* is still on when the kernel start, the kernel will end up with
* dead lock interrupt that it can not clear. Because the interrupt line is
* shared with the basic timer (PIT) on AT91_ID_SYS.
*/
void at91_rtt_irq_fixup(void *base)
{
void __iomem *reg = base + AT91_RTT_MR;
u32 mr = readl(reg);
writel(mr & ~(AT91_RTT_ALMIEN | AT91_RTT_RTTINCIEN), reg);
}
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