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/**
* @file
*
* @ingroup QorIQ
*
* @brief BSP reset.
*/
/*
* Copyright (c) 2010, 2017 embedded brains GmbH. All rights reserved.
*
* embedded brains GmbH
* Dornierstr. 4
* 82178 Puchheim
* Germany
* <rtems@embedded-brains.de>
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#include <bsp/bootcard.h>
#include <bsp/fdt.h>
#include <bsp/qoriq.h>
#include <libfdt.h>
static int find_rstcr_node(const void *fdt, int node)
{
return fdt_node_offset_by_prop_value(fdt, node, "fsl,has-rstcr", NULL, 0);
}
void bsp_reset(void)
{
rtems_interrupt_level level;
const char *fdt;
rtems_interrupt_local_disable(level);
(void) level;
fdt = bsp_fdt_get();
/* If we do not find a RSTCR, then loop forever */
while (true) {
int node;
node = -1;
while ((node = find_rstcr_node(fdt, node)) >= 0) {
const uint32_t *reg;
int len;
reg = fdt_getprop(fdt, node, "reg", &len);
if (reg != NULL && len >= 4) {
volatile uint32_t *rstcr;
rstcr = (volatile uint32_t *)
((uintptr_t) &qoriq + fdt32_to_cpu(reg[0]) + 0xb0);
*rstcr = 0x2;
}
}
}
}
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