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6a7d2c6256
The newly introduced function is to be used as .restart callback for ARMv7-M machines. The used register is architecturally defined, so it should work for all M-class machines. Acked-by: Jonathan Austin <jonathan.austin@arm.com> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
20 lines
531 B
C
20 lines
531 B
C
/*
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* Copyright (C) 2013 Uwe Kleine-Koenig for Pengutronix
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*
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* This program is free software; you can redistribute it and/or modify it under
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* the terms of the GNU General Public License version 2 as published by the
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* Free Software Foundation.
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*/
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#include <linux/io.h>
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#include <linux/reboot.h>
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#include <asm/barrier.h>
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#include <asm/v7m.h>
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void armv7m_restart(enum reboot_mode mode, const char *cmd)
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{
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dsb();
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__raw_writel(V7M_SCB_AIRCR_VECTKEY | V7M_SCB_AIRCR_SYSRESETREQ,
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BASEADDR_V7M_SCB + V7M_SCB_AIRCR);
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dsb();
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}
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