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// SPDX-License-Identifier: GPL-2.0+
/*
* RZ/G2L board support.
* Copyright (C) 2023 Renesas Electronics Corporation
*/
#include <fdtdec.h>
#include <linux/libfdt.h>
#if IS_ENABLED(CONFIG_MULTI_DTB_FIT)
/* If the firmware passed a device tree, use it for board identification. */
extern u64 rcar_atf_boot_args[];
static bool is_rzg2l_board(const char *board_name)
{
void *atf_fdt_blob = (void *)(rcar_atf_boot_args[1]);
return fdt_node_check_compatible(atf_fdt_blob, 0, board_name) == 0;
}
int board_fit_config_name_match(const char *name)
{
void *atf_fdt_blob = (void *)(rcar_atf_boot_args[1]);
if (fdt_magic(atf_fdt_blob) != FDT_MAGIC)
return -1;
if (is_rzg2l_board("renesas,r9a07g044l2"))
return strcmp(name, "r9a07g044l2-smarc");
return -1;
}
#endif
static void apply_atf_overlay(void *fdt_blob)
{
void *atf_fdt_blob = (void *)(rcar_atf_boot_args[1]);
if (fdt_magic(atf_fdt_blob) == FDT_MAGIC)
fdt_overlay_apply_node(fdt_blob, 0, atf_fdt_blob, 0);
}
int fdtdec_board_setup(const void *fdt_blob)
{
apply_atf_overlay((void *)fdt_blob);
return 0;
}
int ft_board_setup(void *blob, struct bd_info *bd)
{
return 0;
}
int board_init(void)
{
return 0;
}
void reset_cpu(void)
{
/*
* TODO: Implement reset support once TrustedFirmware supports
* the appropriate call.
*/
}
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