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/* SPDX-License-Identifier: BSD-2-Clause */
/*
* Copyright (C) 2008, 2013 embedded brains GmbH & Co. KG
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <bsp.h>
#include <bsp/u-boot.h>
#include <libcpu/powerpc-utility.h>
void bsp_restart(void *addr)
{
rtems_interrupt_level level;
void (*start)(void) = addr;
#ifdef HAS_UBOOT
const void *mem_begin = (const void *) bsp_uboot_board_info.bi_memstart;
size_t mem_size = bsp_uboot_board_info.bi_memsize;
#else /* HAS_UBOOT */
const void *mem_begin = bsp_ram_start;
size_t mem_size = (size_t) bsp_ram_size;
#endif /* HAS_UBOOT */
uint32_t hid0;
rtems_interrupt_disable(level);
(void) level; /* avoid set but not used warning */
PPC_SPECIAL_PURPOSE_REGISTER(HID0, hid0);
if ((hid0 & HID0_DCE) != 0) {
rtems_cache_flush_multiple_data_lines(mem_begin, mem_size);
}
hid0 &= ~(HID0_DCE | HID0_ICE);
PPC_SET_SPECIAL_PURPOSE_REGISTER(HID0, hid0);
(*start)();
}
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