| // SPDX-License-Identifier: GPL-2.0-or-later |
| /* |
| * Copyright (C) 2024 Texas Instruments Incorporated - https://www.ti.com/ |
| */ |
| |
| #include <asm/hardware.h> |
| #include "../common_fdt.h" |
| #include <fdt_support.h> |
| |
| static void fdt_fixup_cores_wdt_nodes_am62p(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_video_codec_nodes_am62p(void *blob, bool has_video_codec) |
| { |
| if (!has_video_codec) |
| fdt_del_node_path(blob, "/bus@f0000/video-codec@30210000"); |
| } |
| |
| static void fdt_fixup_canfd_nodes_am62p(void *blob, bool has_canfd) |
| { |
| if (!has_canfd) { |
| fdt_del_node_path(blob, "/bus@f0000/can@20701000"); |
| fdt_del_node_path(blob, "/bus@f0000/can@20711000"); |
| } |
| } |
| |
| 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_am62p(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)); |
| } |
| } |
| |
| static void fdt_fixup_cpu_freq_nodes_am62p(void *blob, int max_freq) |
| { |
| if (max_freq >= 1250000000) |
| return; |
| |
| if (max_freq <= 1000000000) { |
| fdt_del_node_path(blob, "/opp-table/opp-1250000000"); |
| fdt_del_node_path(blob, "/opp-table/opp-1400000000"); |
| } |
| } |
| |
| int ft_system_setup(void *blob, struct bd_info *bd) |
| { |
| fdt_fixup_cores_wdt_nodes_am62p(blob, k3_get_core_nr()); |
| fdt_fixup_video_codec_nodes_am62p(blob, k3_has_video_codec()); |
| fdt_fixup_canfd_nodes_am62p(blob, k3_has_canfd()); |
| fdt_fixup_thermal_zone_nodes_am62p(blob, k3_get_max_temp()); |
| fdt_fixup_cpu_freq_nodes_am62p(blob, k3_get_a53_max_frequency()); |
| fdt_fixup_reserved(blob, "tfa", CONFIG_K3_ATF_LOAD_ADDR, 0x80000); |
| fdt_fixup_reserved(blob, "optee", CONFIG_K3_OPTEE_LOAD_ADDR, 0x1800000); |
| |
| return 0; |
| } |