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/*
* Copyright (c) 2020, Arm Limited. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <common/debug.h>
#include <common/fdt_wrappers.h>
#include <libfdt.h>
#include <fconf_nt_config_getter.h>
#include <plat/common/platform.h>
struct event_log_config_t event_log_config;
int fconf_populate_event_log_config(uintptr_t config)
{
int err;
int node;
/* Necessary to work with libfdt APIs */
const void *dtb = (const void *)config;
/*
* Find the offset of the node containing "arm,tpm_event_log"
* compatible property
*/
const char *compatible_str = "arm,tpm_event_log";
node = fdt_node_offset_by_compatible(dtb, -1, compatible_str);
if (node < 0) {
ERROR("FCONF: Can't find '%s' compatible in dtb\n",
compatible_str);
return node;
}
/* Retrieve Event Log details from the DTB */
#ifdef SPD_opteed
err = fdtw_read_cells(dtb, node, "tpm_event_log_sm_addr", 2,
&event_log_config.tpm_event_log_sm_addr);
if (err < 0) {
ERROR("FCONF: Read cell failed for 'tpm_event_log_sm_addr'\n");
return err;
}
#endif
err = fdtw_read_cells(dtb, node,
"tpm_event_log_addr", 2, &event_log_config.tpm_event_log_addr);
if (err < 0) {
ERROR("FCONF: Read cell failed for 'tpm_event_log_addr'\n");
return err;
}
err = fdtw_read_cells(dtb, node,
"tpm_event_log_size", 1, &event_log_config.tpm_event_log_size);
if (err < 0) {
ERROR("FCONF: Read cell failed for 'tpm_event_log_size'\n");
}
return err;
}
FCONF_REGISTER_POPULATOR(NT_CONFIG, event_log_config,
fconf_populate_event_log_config);
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