17785e8eaSSergey Kambalin /* 27785e8eaSSergey Kambalin * Raspberry Pi 4B emulation 37785e8eaSSergey Kambalin * 47785e8eaSSergey Kambalin * Copyright (C) 2022 Ovchinnikov Vitalii <vitalii.ovchinnikov@auriga.com> 57785e8eaSSergey Kambalin * 67785e8eaSSergey Kambalin * SPDX-License-Identifier: GPL-2.0-or-later 77785e8eaSSergey Kambalin */ 87785e8eaSSergey Kambalin 97785e8eaSSergey Kambalin #include "qemu/osdep.h" 107785e8eaSSergey Kambalin #include "qemu/units.h" 117785e8eaSSergey Kambalin #include "qemu/cutils.h" 127785e8eaSSergey Kambalin #include "qapi/error.h" 137785e8eaSSergey Kambalin #include "qapi/visitor.h" 147785e8eaSSergey Kambalin #include "hw/arm/raspi_platform.h" 157785e8eaSSergey Kambalin #include "hw/display/bcm2835_fb.h" 167785e8eaSSergey Kambalin #include "hw/registerfields.h" 177785e8eaSSergey Kambalin #include "qemu/error-report.h" 187785e8eaSSergey Kambalin #include "sysemu/device_tree.h" 197785e8eaSSergey Kambalin #include "hw/boards.h" 207785e8eaSSergey Kambalin #include "hw/loader.h" 217785e8eaSSergey Kambalin #include "hw/arm/boot.h" 227785e8eaSSergey Kambalin #include "qom/object.h" 237785e8eaSSergey Kambalin #include "hw/arm/bcm2838.h" 24*bf1da4b3SSergey Kambalin #include <libfdt.h> 257785e8eaSSergey Kambalin 267785e8eaSSergey Kambalin #define TYPE_RASPI4B_MACHINE MACHINE_TYPE_NAME("raspi4b") 277785e8eaSSergey Kambalin OBJECT_DECLARE_SIMPLE_TYPE(Raspi4bMachineState, RASPI4B_MACHINE) 287785e8eaSSergey Kambalin 297785e8eaSSergey Kambalin struct Raspi4bMachineState { 307785e8eaSSergey Kambalin RaspiBaseMachineState parent_obj; 317785e8eaSSergey Kambalin BCM2838State soc; 327785e8eaSSergey Kambalin }; 337785e8eaSSergey Kambalin 34*bf1da4b3SSergey Kambalin /* 35*bf1da4b3SSergey Kambalin * Add second memory region if board RAM amount exceeds VC base address 36*bf1da4b3SSergey Kambalin * (see https://datasheets.raspberrypi.com/bcm2711/bcm2711-peripherals.pdf 37*bf1da4b3SSergey Kambalin * 1.2 Address Map) 38*bf1da4b3SSergey Kambalin */ 39*bf1da4b3SSergey Kambalin static int raspi_add_memory_node(void *fdt, hwaddr mem_base, hwaddr mem_len) 40*bf1da4b3SSergey Kambalin { 41*bf1da4b3SSergey Kambalin int ret; 42*bf1da4b3SSergey Kambalin uint32_t acells, scells; 43*bf1da4b3SSergey Kambalin char *nodename = g_strdup_printf("/memory@%" PRIx64, mem_base); 44*bf1da4b3SSergey Kambalin 45*bf1da4b3SSergey Kambalin acells = qemu_fdt_getprop_cell(fdt, "/", "#address-cells", 46*bf1da4b3SSergey Kambalin NULL, &error_fatal); 47*bf1da4b3SSergey Kambalin scells = qemu_fdt_getprop_cell(fdt, "/", "#size-cells", 48*bf1da4b3SSergey Kambalin NULL, &error_fatal); 49*bf1da4b3SSergey Kambalin if (acells == 0 || scells == 0) { 50*bf1da4b3SSergey Kambalin fprintf(stderr, "dtb file invalid (#address-cells or #size-cells 0)\n"); 51*bf1da4b3SSergey Kambalin ret = -1; 52*bf1da4b3SSergey Kambalin } else { 53*bf1da4b3SSergey Kambalin qemu_fdt_add_subnode(fdt, nodename); 54*bf1da4b3SSergey Kambalin qemu_fdt_setprop_string(fdt, nodename, "device_type", "memory"); 55*bf1da4b3SSergey Kambalin ret = qemu_fdt_setprop_sized_cells(fdt, nodename, "reg", 56*bf1da4b3SSergey Kambalin acells, mem_base, 57*bf1da4b3SSergey Kambalin scells, mem_len); 58*bf1da4b3SSergey Kambalin } 59*bf1da4b3SSergey Kambalin 60*bf1da4b3SSergey Kambalin g_free(nodename); 61*bf1da4b3SSergey Kambalin return ret; 62*bf1da4b3SSergey Kambalin } 63*bf1da4b3SSergey Kambalin 64*bf1da4b3SSergey Kambalin static void raspi4_modify_dtb(const struct arm_boot_info *info, void *fdt) 65*bf1da4b3SSergey Kambalin { 66*bf1da4b3SSergey Kambalin uint64_t ram_size; 67*bf1da4b3SSergey Kambalin 68*bf1da4b3SSergey Kambalin /* Temporarily disable following devices until they are implemented */ 69*bf1da4b3SSergey Kambalin const char *nodes_to_remove[] = { 70*bf1da4b3SSergey Kambalin "brcm,bcm2711-pcie", 71*bf1da4b3SSergey Kambalin "brcm,bcm2711-rng200", 72*bf1da4b3SSergey Kambalin "brcm,bcm2711-thermal", 73*bf1da4b3SSergey Kambalin "brcm,bcm2711-genet-v5", 74*bf1da4b3SSergey Kambalin }; 75*bf1da4b3SSergey Kambalin 76*bf1da4b3SSergey Kambalin for (int i = 0; i < ARRAY_SIZE(nodes_to_remove); i++) { 77*bf1da4b3SSergey Kambalin const char *dev_str = nodes_to_remove[i]; 78*bf1da4b3SSergey Kambalin 79*bf1da4b3SSergey Kambalin int offset = fdt_node_offset_by_compatible(fdt, -1, dev_str); 80*bf1da4b3SSergey Kambalin if (offset >= 0) { 81*bf1da4b3SSergey Kambalin if (!fdt_nop_node(fdt, offset)) { 82*bf1da4b3SSergey Kambalin warn_report("bcm2711 dtc: %s has been disabled!", dev_str); 83*bf1da4b3SSergey Kambalin } 84*bf1da4b3SSergey Kambalin } 85*bf1da4b3SSergey Kambalin } 86*bf1da4b3SSergey Kambalin 87*bf1da4b3SSergey Kambalin ram_size = board_ram_size(info->board_id); 88*bf1da4b3SSergey Kambalin 89*bf1da4b3SSergey Kambalin if (info->ram_size > UPPER_RAM_BASE) { 90*bf1da4b3SSergey Kambalin raspi_add_memory_node(fdt, UPPER_RAM_BASE, ram_size - UPPER_RAM_BASE); 91*bf1da4b3SSergey Kambalin } 92*bf1da4b3SSergey Kambalin } 93*bf1da4b3SSergey Kambalin 947785e8eaSSergey Kambalin static void raspi4b_machine_init(MachineState *machine) 957785e8eaSSergey Kambalin { 967785e8eaSSergey Kambalin Raspi4bMachineState *s = RASPI4B_MACHINE(machine); 977785e8eaSSergey Kambalin RaspiBaseMachineState *s_base = RASPI_BASE_MACHINE(machine); 987785e8eaSSergey Kambalin RaspiBaseMachineClass *mc = RASPI_BASE_MACHINE_GET_CLASS(machine); 997785e8eaSSergey Kambalin BCM2838State *soc = &s->soc; 1007785e8eaSSergey Kambalin 101*bf1da4b3SSergey Kambalin s_base->binfo.modify_dtb = raspi4_modify_dtb; 1027785e8eaSSergey Kambalin s_base->binfo.board_id = mc->board_rev; 1037785e8eaSSergey Kambalin 1047785e8eaSSergey Kambalin object_initialize_child(OBJECT(machine), "soc", soc, 1057785e8eaSSergey Kambalin board_soc_type(mc->board_rev)); 1067785e8eaSSergey Kambalin 1077785e8eaSSergey Kambalin raspi_base_machine_init(machine, &soc->parent_obj); 1087785e8eaSSergey Kambalin } 1097785e8eaSSergey Kambalin 1107785e8eaSSergey Kambalin static void raspi4b_machine_class_init(ObjectClass *oc, void *data) 1117785e8eaSSergey Kambalin { 1127785e8eaSSergey Kambalin MachineClass *mc = MACHINE_CLASS(oc); 1137785e8eaSSergey Kambalin RaspiBaseMachineClass *rmc = RASPI_BASE_MACHINE_CLASS(oc); 1147785e8eaSSergey Kambalin 1157785e8eaSSergey Kambalin rmc->board_rev = 0xb03115; /* Revision 1.5, 2 Gb RAM */ 1167785e8eaSSergey Kambalin raspi_machine_class_common_init(mc, rmc->board_rev); 1177785e8eaSSergey Kambalin mc->init = raspi4b_machine_init; 1187785e8eaSSergey Kambalin } 1197785e8eaSSergey Kambalin 1207785e8eaSSergey Kambalin static const TypeInfo raspi4b_machine_type = { 1217785e8eaSSergey Kambalin .name = TYPE_RASPI4B_MACHINE, 1227785e8eaSSergey Kambalin .parent = TYPE_RASPI_BASE_MACHINE, 1237785e8eaSSergey Kambalin .instance_size = sizeof(Raspi4bMachineState), 1247785e8eaSSergey Kambalin .class_init = raspi4b_machine_class_init, 1257785e8eaSSergey Kambalin }; 1267785e8eaSSergey Kambalin 1277785e8eaSSergey Kambalin static void raspi4b_machine_register_type(void) 1287785e8eaSSergey Kambalin { 1297785e8eaSSergey Kambalin type_register_static(&raspi4b_machine_type); 1307785e8eaSSergey Kambalin } 1317785e8eaSSergey Kambalin 1327785e8eaSSergey Kambalin type_init(raspi4b_machine_register_type) 133