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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright 2023 Toradex - https://www.toradex.com/
*/
#include <asm/hardware.h>
#include "common_fdt.h"
#include <fdt_support.h>
static void fdt_fixup_cores_nodes_am625(void *blob, int core_nr)
{
char node_path[32];
if (core_nr < 1)
return;
for (; core_nr < 4; core_nr++) {
snprintf(node_path, sizeof(node_path), "/cpus/cpu@%d", core_nr);
fdt_del_node_path(blob, node_path);
snprintf(node_path, sizeof(node_path), "/cpus/cpu-map/cluster0/core%d", core_nr);
fdt_del_node_path(blob, node_path);
snprintf(node_path, sizeof(node_path), "/bus@f0000/watchdog@e0%d0000", core_nr);
fdt_del_node_path(blob, node_path);
}
}
static void fdt_fixup_gpu_nodes_am625(void *blob, int has_gpu)
{
if (!has_gpu) {
fdt_del_node_path(blob, "/bus@f0000/gpu@fd00000");
fdt_del_node_path(blob, "/bus@f0000/watchdog@e0f0000");
}
}
static void fdt_fixup_pru_node_am625(void *blob, int has_pru)
{
if (!has_pru)
fdt_del_node_path(blob, "/bus@f0000/pruss@30040000");
}
static int fdt_fixup_trips_node(void *blob, int zoneoffset, int maxc)
{
int node, trip;
node = fdt_subnode_offset(blob, zoneoffset, "trips");
if (node < 0)
return -1;
fdt_for_each_subnode(trip, blob, node) {
const char *type = fdt_getprop(blob, trip, "type", NULL);
if (!type || (strncmp(type, "critical", 8) != 0))
continue;
if (fdt_setprop_u32(blob, trip, "temperature", 1000 * maxc) < 0)
return -1;
}
return 0;
}
static void fdt_fixup_thermal_zone_nodes_am625(void *blob, int maxc)
{
int node, zone;
node = fdt_path_offset(blob, "/thermal-zones");
if (node < 0)
return;
fdt_for_each_subnode(zone, blob, node) {
if (fdt_fixup_trips_node(blob, zone, maxc) < 0)
printf("Failed to set temperature in %s critical trips\n",
fdt_get_name(blob, zone, NULL));
}
}
int ft_system_setup(void *blob, struct bd_info *bd)
{
fdt_fixup_cores_nodes_am625(blob, k3_get_core_nr());
fdt_fixup_gpu_nodes_am625(blob, k3_has_gpu());
fdt_fixup_pru_node_am625(blob, k3_has_pru());
fdt_fixup_thermal_zone_nodes_am625(blob, k3_get_max_temp());
return 0;
}
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