102 lines
2.6 KiB
C
102 lines
2.6 KiB
C
/*
|
|
* Copyright (c) 2019-2020, Arm Limited. All rights reserved.
|
|
*
|
|
* SPDX-License-Identifier: BSD-3-Clause
|
|
*/
|
|
|
|
#include <assert.h>
|
|
|
|
#include <common/debug.h>
|
|
#include <common/fdt_wrappers.h>
|
|
#include <lib/fconf/fconf_dyn_cfg_getter.h>
|
|
#include <lib/object_pool.h>
|
|
#include <libfdt.h>
|
|
|
|
/* We currently use TB_FW, SOC_FW, TOS_FW, NS_fw and HW configs */
|
|
#define MAX_DTB_INFO U(5)
|
|
|
|
static struct dyn_cfg_dtb_info_t dtb_infos[MAX_DTB_INFO];
|
|
static OBJECT_POOL_ARRAY(dtb_info_pool, dtb_infos);
|
|
|
|
struct dyn_cfg_dtb_info_t *dyn_cfg_dtb_info_getter(unsigned int config_id)
|
|
{
|
|
unsigned int index;
|
|
struct dyn_cfg_dtb_info_t *info;
|
|
|
|
/* Positions index to the proper config-id */
|
|
for (index = 0; index < MAX_DTB_INFO; index++) {
|
|
if (dtb_infos[index].config_id == config_id) {
|
|
info = &dtb_infos[index];
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (index == MAX_DTB_INFO) {
|
|
WARN("FCONF: Invalid config id %u\n", config_id);
|
|
info = NULL;
|
|
}
|
|
|
|
return info;
|
|
}
|
|
|
|
int fconf_populate_dtb_registry(uintptr_t config)
|
|
{
|
|
int rc;
|
|
int node, child;
|
|
struct dyn_cfg_dtb_info_t *dtb_info;
|
|
|
|
/* As libfdt use void *, we can't avoid this cast */
|
|
const void *dtb = (void *)config;
|
|
|
|
/* Find the node offset point to "arm,dyn_cfg-dtb_registry" compatible property */
|
|
const char *compatible_str = "arm,dyn_cfg-dtb_registry";
|
|
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;
|
|
}
|
|
|
|
fdt_for_each_subnode(child, dtb, node) {
|
|
uint32_t val32;
|
|
uint64_t val64;
|
|
|
|
dtb_info = pool_alloc(&dtb_info_pool);
|
|
|
|
/* Read configuration dtb information */
|
|
rc = fdt_read_uint64(dtb, child, "load-address", &val64);
|
|
if (rc < 0) {
|
|
ERROR("FCONF: Incomplete configuration property in dtb-registry.\n");
|
|
return rc;
|
|
}
|
|
dtb_info->config_addr = (uintptr_t)val64;
|
|
|
|
rc = fdt_read_uint32(dtb, child, "max-size", &val32);
|
|
if (rc < 0) {
|
|
ERROR("FCONF: Incomplete configuration property in dtb-registry.\n");
|
|
return rc;
|
|
}
|
|
dtb_info->config_max_size = val32;
|
|
|
|
rc = fdt_read_uint32(dtb, child, "id", &val32);
|
|
if (rc < 0) {
|
|
ERROR("FCONF: Incomplete configuration property in dtb-registry.\n");
|
|
return rc;
|
|
}
|
|
dtb_info->config_id = val32;
|
|
|
|
VERBOSE("FCONF: dyn_cfg.dtb_registry cell found with:\n");
|
|
VERBOSE("\tload-address = %lx\n", dtb_info->config_addr);
|
|
VERBOSE("\tmax-size = 0x%zx\n", dtb_info->config_max_size);
|
|
VERBOSE("\tconfig-id = %u\n", dtb_info->config_id);
|
|
}
|
|
|
|
if ((child < 0) && (child != -FDT_ERR_NOTFOUND)) {
|
|
ERROR("%d: fdt_for_each_subnode(): %d\n", __LINE__, node);
|
|
return child;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
FCONF_REGISTER_POPULATOR(TB_FW, dyn_cfg, fconf_populate_dtb_registry);
|