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 Aspeed2600SoCState bmc;
31 Aspeed10x0SoCState bic;
32
33 bool mmio_exec;
34 };
35
36 #define FBY35_BMC_RAM_SIZE (2 * GiB)
37 #define FBY35_BMC_FIRMWARE_ADDR 0x0
38
fby35_bmc_write_boot_rom(DriveInfo * dinfo,MemoryRegion * mr,hwaddr offset,size_t rom_size,Error ** errp)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
fby35_bmc_init(Fby35State * s)71 static void fby35_bmc_init(Fby35State *s)
72 {
73 AspeedSoCState *soc;
74
75 object_initialize_child(OBJECT(s), "bmc", &s->bmc, "ast2600-a3");
76 soc = ASPEED_SOC(&s->bmc);
77
78 memory_region_init(&s->bmc_memory, OBJECT(&s->bmc), "bmc-memory",
79 UINT64_MAX);
80 memory_region_init_ram(&s->bmc_dram, OBJECT(&s->bmc), "bmc-dram",
81 FBY35_BMC_RAM_SIZE, &error_abort);
82
83 object_property_set_int(OBJECT(&s->bmc), "ram-size", FBY35_BMC_RAM_SIZE,
84 &error_abort);
85 object_property_set_link(OBJECT(&s->bmc), "memory", OBJECT(&s->bmc_memory),
86 &error_abort);
87 object_property_set_link(OBJECT(&s->bmc), "dram", OBJECT(&s->bmc_dram),
88 &error_abort);
89 object_property_set_int(OBJECT(&s->bmc), "hw-strap1", 0x000000C0,
90 &error_abort);
91 object_property_set_int(OBJECT(&s->bmc), "hw-strap2", 0x00000003,
92 &error_abort);
93 aspeed_soc_uart_set_chr(soc, ASPEED_DEV_UART5, serial_hd(0));
94 qdev_realize(DEVICE(&s->bmc), NULL, &error_abort);
95
96 aspeed_board_init_flashes(&soc->fmc, "n25q00", 2, 0);
97
98 /* Install first FMC flash content as a boot rom. */
99 if (!s->mmio_exec) {
100 DriveInfo *mtd0 = drive_get(IF_MTD, 0, 0);
101
102 if (mtd0) {
103 uint64_t rom_size = memory_region_size(&soc->spi_boot);
104
105 memory_region_init_rom(&s->bmc_boot_rom, NULL, "aspeed.boot_rom",
106 rom_size, &error_abort);
107 memory_region_add_subregion_overlap(&soc->spi_boot_container, 0,
108 &s->bmc_boot_rom, 1);
109
110 fby35_bmc_write_boot_rom(mtd0, &s->bmc_boot_rom,
111 FBY35_BMC_FIRMWARE_ADDR,
112 rom_size, &error_abort);
113 }
114 }
115 }
116
fby35_bic_init(Fby35State * s)117 static void fby35_bic_init(Fby35State *s)
118 {
119 AspeedSoCState *soc;
120
121 s->bic_sysclk = clock_new(OBJECT(s), "SYSCLK");
122 clock_set_hz(s->bic_sysclk, 200000000ULL);
123
124 object_initialize_child(OBJECT(s), "bic", &s->bic, "ast1030-a1");
125 soc = ASPEED_SOC(&s->bic);
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(soc, ASPEED_DEV_UART5, serial_hd(1));
134 qdev_realize(DEVICE(&s->bic), NULL, &error_abort);
135
136 aspeed_board_init_flashes(&soc->fmc, "sst25vf032b", 2, 2);
137 aspeed_board_init_flashes(&soc->spi[0], "sst25vf032b", 2, 4);
138 aspeed_board_init_flashes(&soc->spi[1], "sst25vf032b", 2, 6);
139 }
140
fby35_init(MachineState * machine)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
fby35_get_mmio_exec(Object * obj,Error ** errp)150 static bool fby35_get_mmio_exec(Object *obj, Error **errp)
151 {
152 return FBY35(obj)->mmio_exec;
153 }
154
fby35_set_mmio_exec(Object * obj,bool value,Error ** errp)155 static void fby35_set_mmio_exec(Object *obj, bool value, Error **errp)
156 {
157 FBY35(obj)->mmio_exec = value;
158 }
159
fby35_instance_init(Object * obj)160 static void fby35_instance_init(Object *obj)
161 {
162 FBY35(obj)->mmio_exec = false;
163 }
164
fby35_class_init(ObjectClass * oc,void * data)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);
193