fby35.c (6086B)
1 /* 2 * Copyright (c) Meta Platforms, Inc. and affiliates. (http://www.meta.com) 3 * 4 * This code is licensed under the GPL version 2 or later. See the COPYING 5 * file in the top-level directory. 6 */ 7 8 #include "qemu/osdep.h" 9 #include "qemu/units.h" 10 #include "qapi/error.h" 11 #include "sysemu/sysemu.h" 12 #include "sysemu/block-backend.h" 13 #include "hw/boards.h" 14 #include "hw/qdev-clock.h" 15 #include "hw/arm/aspeed_soc.h" 16 #include "hw/arm/boot.h" 17 18 #define TYPE_FBY35 MACHINE_TYPE_NAME("fby35") 19 OBJECT_DECLARE_SIMPLE_TYPE(Fby35State, FBY35); 20 21 struct Fby35State { 22 MachineState parent_obj; 23 24 MemoryRegion bmc_memory; 25 MemoryRegion bmc_dram; 26 MemoryRegion bmc_boot_rom; 27 MemoryRegion bic_memory; 28 Clock *bic_sysclk; 29 30 AspeedSoCState bmc; 31 AspeedSoCState bic; 32 33 bool mmio_exec; 34 }; 35 36 #define FBY35_BMC_RAM_SIZE (2 * GiB) 37 #define FBY35_BMC_FIRMWARE_ADDR 0x0 38 39 static void fby35_bmc_write_boot_rom(DriveInfo *dinfo, MemoryRegion *mr, 40 hwaddr offset, size_t rom_size, 41 Error **errp) 42 { 43 BlockBackend *blk = blk_by_legacy_dinfo(dinfo); 44 g_autofree void *storage = NULL; 45 int64_t size; 46 47 /* 48 * The block backend size should have already been 'validated' by 49 * the creation of the m25p80 object. 50 */ 51 size = blk_getlength(blk); 52 if (size <= 0) { 53 error_setg(errp, "failed to get flash size"); 54 return; 55 } 56 57 if (rom_size > size) { 58 rom_size = size; 59 } 60 61 storage = g_malloc0(rom_size); 62 if (blk_pread(blk, 0, rom_size, storage, 0) < 0) { 63 error_setg(errp, "failed to read the initial flash content"); 64 return; 65 } 66 67 /* TODO: find a better way to install the ROM */ 68 memcpy(memory_region_get_ram_ptr(mr) + offset, storage, rom_size); 69 } 70 71 static void fby35_bmc_init(Fby35State *s) 72 { 73 DriveInfo *drive0 = drive_get(IF_MTD, 0, 0); 74 75 object_initialize_child(OBJECT(s), "bmc", &s->bmc, "ast2600-a3"); 76 77 memory_region_init(&s->bmc_memory, OBJECT(&s->bmc), "bmc-memory", 78 UINT64_MAX); 79 memory_region_init_ram(&s->bmc_dram, OBJECT(&s->bmc), "bmc-dram", 80 FBY35_BMC_RAM_SIZE, &error_abort); 81 82 object_property_set_int(OBJECT(&s->bmc), "ram-size", FBY35_BMC_RAM_SIZE, 83 &error_abort); 84 object_property_set_link(OBJECT(&s->bmc), "memory", OBJECT(&s->bmc_memory), 85 &error_abort); 86 object_property_set_link(OBJECT(&s->bmc), "dram", OBJECT(&s->bmc_dram), 87 &error_abort); 88 object_property_set_int(OBJECT(&s->bmc), "hw-strap1", 0x000000C0, 89 &error_abort); 90 object_property_set_int(OBJECT(&s->bmc), "hw-strap2", 0x00000003, 91 &error_abort); 92 aspeed_soc_uart_set_chr(&s->bmc, ASPEED_DEV_UART5, serial_hd(0)); 93 qdev_realize(DEVICE(&s->bmc), NULL, &error_abort); 94 95 aspeed_board_init_flashes(&s->bmc.fmc, "n25q00", 2, 0); 96 97 /* Install first FMC flash content as a boot rom. */ 98 if (drive0) { 99 AspeedSMCFlash *fl = &s->bmc.fmc.flashes[0]; 100 MemoryRegion *boot_rom = g_new(MemoryRegion, 1); 101 uint64_t size = memory_region_size(&fl->mmio); 102 103 if (s->mmio_exec) { 104 memory_region_init_alias(boot_rom, NULL, "aspeed.boot_rom", 105 &fl->mmio, 0, size); 106 memory_region_add_subregion(&s->bmc_memory, FBY35_BMC_FIRMWARE_ADDR, 107 boot_rom); 108 } else { 109 110 memory_region_init_rom(boot_rom, NULL, "aspeed.boot_rom", 111 size, &error_abort); 112 memory_region_add_subregion(&s->bmc_memory, FBY35_BMC_FIRMWARE_ADDR, 113 boot_rom); 114 fby35_bmc_write_boot_rom(drive0, boot_rom, FBY35_BMC_FIRMWARE_ADDR, 115 size, &error_abort); 116 } 117 } 118 } 119 120 static void fby35_bic_init(Fby35State *s) 121 { 122 s->bic_sysclk = clock_new(OBJECT(s), "SYSCLK"); 123 clock_set_hz(s->bic_sysclk, 200000000ULL); 124 125 object_initialize_child(OBJECT(s), "bic", &s->bic, "ast1030-a1"); 126 127 memory_region_init(&s->bic_memory, OBJECT(&s->bic), "bic-memory", 128 UINT64_MAX); 129 130 qdev_connect_clock_in(DEVICE(&s->bic), "sysclk", s->bic_sysclk); 131 object_property_set_link(OBJECT(&s->bic), "memory", OBJECT(&s->bic_memory), 132 &error_abort); 133 aspeed_soc_uart_set_chr(&s->bic, ASPEED_DEV_UART5, serial_hd(1)); 134 qdev_realize(DEVICE(&s->bic), NULL, &error_abort); 135 136 aspeed_board_init_flashes(&s->bic.fmc, "sst25vf032b", 2, 2); 137 aspeed_board_init_flashes(&s->bic.spi[0], "sst25vf032b", 2, 4); 138 aspeed_board_init_flashes(&s->bic.spi[1], "sst25vf032b", 2, 6); 139 } 140 141 static void fby35_init(MachineState *machine) 142 { 143 Fby35State *s = FBY35(machine); 144 145 fby35_bmc_init(s); 146 fby35_bic_init(s); 147 } 148 149 150 static bool fby35_get_mmio_exec(Object *obj, Error **errp) 151 { 152 return FBY35(obj)->mmio_exec; 153 } 154 155 static void fby35_set_mmio_exec(Object *obj, bool value, Error **errp) 156 { 157 FBY35(obj)->mmio_exec = value; 158 } 159 160 static void fby35_instance_init(Object *obj) 161 { 162 FBY35(obj)->mmio_exec = false; 163 } 164 165 static void fby35_class_init(ObjectClass *oc, void *data) 166 { 167 MachineClass *mc = MACHINE_CLASS(oc); 168 169 mc->desc = "Meta Platforms fby35"; 170 mc->init = fby35_init; 171 mc->no_floppy = 1; 172 mc->no_cdrom = 1; 173 mc->min_cpus = mc->max_cpus = mc->default_cpus = 3; 174 175 object_class_property_add_bool(oc, "execute-in-place", 176 fby35_get_mmio_exec, 177 fby35_set_mmio_exec); 178 object_class_property_set_description(oc, "execute-in-place", 179 "boot directly from CE0 flash device"); 180 } 181 182 static const TypeInfo fby35_types[] = { 183 { 184 .name = MACHINE_TYPE_NAME("fby35"), 185 .parent = TYPE_MACHINE, 186 .class_init = fby35_class_init, 187 .instance_size = sizeof(Fby35State), 188 .instance_init = fby35_instance_init, 189 }, 190 }; 191 192 DEFINE_TYPES(fby35_types);