blob: a458686f13017e2ecc3143e3c8fa2d2eb4b8a40f [file] [log] [blame]
/*
* Copyright (c) 2019, Intel Corporation. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <platform_def.h>
#include <string.h>
#include "agilex_handoff.h"
#define SWAP_UINT32(x) (((x) >> 24) | (((x) & 0x00FF0000) >> 8) | \
(((x) & 0x0000FF00) << 8) | ((x) << 24))
int agilex_get_handoff(handoff *reverse_hoff_ptr)
{
int i;
uint32_t *buffer;
handoff *handoff_ptr = (handoff *) PLAT_HANDOFF_OFFSET;
memcpy(reverse_hoff_ptr, handoff_ptr, sizeof(handoff));
buffer = (uint32_t *)reverse_hoff_ptr;
/* convert big endian to little endian */
for (i = 0; i < sizeof(handoff) / 4; i++)
buffer[i] = SWAP_UINT32(buffer[i]);
if (reverse_hoff_ptr->header_magic != HANDOFF_MAGIC_HEADER)
return -1;
if (reverse_hoff_ptr->pinmux_sel_magic != HANDOFF_MAGIC_PINMUX_SEL)
return -1;
if (reverse_hoff_ptr->pinmux_io_magic != HANDOFF_MAGIC_IOCTLR)
return -1;
if (reverse_hoff_ptr->pinmux_fpga_magic != HANDOFF_MAGIC_FPGA)
return -1;
if (reverse_hoff_ptr->pinmux_delay_magic != HANDOFF_MAGIC_IODELAY)
return -1;
return 0;
}