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6eb682bc7e
Andrew Davis <afd@ti.com> says: Explanation for this series is mostly in [4/6]. First 3 patches should be safe to take independent of the last 3.
88 lines
2.2 KiB
C
88 lines
2.2 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright 2023 Toradex - https://www.toradex.com/
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*/
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#include <asm/hardware.h>
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#include "common_fdt.h"
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#include <fdt_support.h>
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static void fdt_fixup_cores_nodes_am625(void *blob, int core_nr)
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{
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char node_path[32];
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if (core_nr < 1)
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return;
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for (; core_nr < 4; core_nr++) {
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snprintf(node_path, sizeof(node_path), "/cpus/cpu@%d", core_nr);
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fdt_del_node_path(blob, node_path);
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snprintf(node_path, sizeof(node_path), "/cpus/cpu-map/cluster0/core%d", core_nr);
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fdt_del_node_path(blob, node_path);
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snprintf(node_path, sizeof(node_path), "/bus@f0000/watchdog@e0%d0000", core_nr);
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fdt_del_node_path(blob, node_path);
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}
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}
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static void fdt_fixup_gpu_nodes_am625(void *blob, int has_gpu)
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{
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if (!has_gpu) {
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fdt_del_node_path(blob, "/bus@f0000/gpu@fd00000");
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fdt_del_node_path(blob, "/bus@f0000/watchdog@e0f0000");
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}
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}
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static void fdt_fixup_pru_node_am625(void *blob, int has_pru)
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{
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if (!has_pru)
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fdt_del_node_path(blob, "/bus@f0000/pruss@30040000");
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}
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static int fdt_fixup_trips_node(void *blob, int zoneoffset, int maxc)
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{
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int node, trip;
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node = fdt_subnode_offset(blob, zoneoffset, "trips");
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if (node < 0)
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return -1;
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fdt_for_each_subnode(trip, blob, node) {
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const char *type = fdt_getprop(blob, trip, "type", NULL);
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if (!type || (strncmp(type, "critical", 8) != 0))
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continue;
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if (fdt_setprop_u32(blob, trip, "temperature", 1000 * maxc) < 0)
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return -1;
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}
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return 0;
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}
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static void fdt_fixup_thermal_zone_nodes_am625(void *blob, int maxc)
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{
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int node, zone;
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node = fdt_path_offset(blob, "/thermal-zones");
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if (node < 0)
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return;
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fdt_for_each_subnode(zone, blob, node) {
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if (fdt_fixup_trips_node(blob, zone, maxc) < 0)
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printf("Failed to set temperature in %s critical trips\n",
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fdt_get_name(blob, zone, NULL));
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}
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}
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int ft_system_setup(void *blob, struct bd_info *bd)
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{
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fdt_fixup_cores_nodes_am625(blob, k3_get_core_nr());
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fdt_fixup_gpu_nodes_am625(blob, k3_has_gpu());
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fdt_fixup_pru_node_am625(blob, k3_has_pru());
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fdt_fixup_thermal_zone_nodes_am625(blob, k3_get_max_temp());
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fdt_fixup_reserved(blob, "tfa", CONFIG_K3_ATF_LOAD_ADDR, 0x80000);
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fdt_fixup_reserved(blob, "optee", CONFIG_K3_OPTEE_LOAD_ADDR, 0x1800000);
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return 0;
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}
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