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sam3: Implement board reset via SAM RSTC hardware

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Use the RSTC hardware block to perform a full reset on a "reset"
command.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2018-12-30 11:43:46 -05:00
parent 02c558652f
commit 8e0eb0d574
1 changed files with 6 additions and 1 deletions
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7
src/sam3/main.c
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@ -4,6 +4,7 @@
// //
// This file may be distributed under the terms of the GNU GPLv3 license. // This file may be distributed under the terms of the GNU GPLv3 license.
#include "board/irq.h" // irq_disable
#include "command.h" // DECL_CONSTANT #include "command.h" // DECL_CONSTANT
#include "internal.h" // WDT #include "internal.h" // WDT
#include "sched.h" // sched_main #include "sched.h" // sched_main
@ -58,7 +59,11 @@ enable_pclock(uint32_t id)
void void
command_reset(uint32_t *args) command_reset(uint32_t *args)
{ {
NVIC_SystemReset(); irq_disable();
RSTC->RSTC_CR = ((0xA5 << RSTC_CR_KEY_Pos) | RSTC_CR_PROCRST
| RSTC_CR_PERRST);
for (;;)
;
} }
DECL_COMMAND_FLAGS(command_reset, HF_IN_SHUTDOWN, "reset"); DECL_COMMAND_FLAGS(command_reset, HF_IN_SHUTDOWN, "reset");