aboutsummaryrefslogtreecommitdiff
path: root/hw/arm/fby35.c
blob: c9964bd283fa74f6c9ca229be8d85b417d996bc5 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
/*
 * Copyright (c) Meta Platforms, Inc. and affiliates. (http://www.meta.com)
 *
 * This code is licensed under the GPL version 2 or later. See the COPYING
 * file in the top-level directory.
 */

#include "qemu/osdep.h"
#include "qemu/units.h"
#include "qapi/error.h"
#include "sysemu/sysemu.h"
#include "sysemu/block-backend.h"
#include "hw/boards.h"
#include "hw/qdev-clock.h"
#include "hw/arm/aspeed_soc.h"
#include "hw/arm/boot.h"

#define TYPE_FBY35 MACHINE_TYPE_NAME("fby35")
OBJECT_DECLARE_SIMPLE_TYPE(Fby35State, FBY35);

struct Fby35State {
    MachineState parent_obj;

    MemoryRegion bmc_memory;
    MemoryRegion bmc_dram;
    MemoryRegion bmc_boot_rom;
    MemoryRegion bic_memory;
    Clock *bic_sysclk;

    Aspeed2600SoCState bmc;
    Aspeed10x0SoCState bic;

    bool mmio_exec;
};

#define FBY35_BMC_RAM_SIZE (2 * GiB)
#define FBY35_BMC_FIRMWARE_ADDR 0x0

static void fby35_bmc_write_boot_rom(DriveInfo *dinfo, MemoryRegion *mr,
                                     hwaddr offset, size_t rom_size,
                                     Error **errp)
{
    BlockBackend *blk = blk_by_legacy_dinfo(dinfo);
    g_autofree void *storage = NULL;
    int64_t size;

    /*
     * The block backend size should have already been 'validated' by
     * the creation of the m25p80 object.
     */
    size = blk_getlength(blk);
    if (size <= 0) {
        error_setg(errp, "failed to get flash size");
        return;
    }

    if (rom_size > size) {
        rom_size = size;
    }

    storage = g_malloc0(rom_size);
    if (blk_pread(blk, 0, rom_size, storage, 0) < 0) {
        error_setg(errp, "failed to read the initial flash content");
        return;
    }

    /* TODO: find a better way to install the ROM */
    memcpy(memory_region_get_ram_ptr(mr) + offset, storage, rom_size);
}

static void fby35_bmc_init(Fby35State *s)
{
    AspeedSoCState *soc;

    object_initialize_child(OBJECT(s), "bmc", &s->bmc, "ast2600-a3");
    soc = ASPEED_SOC(&s->bmc);

    memory_region_init(&s->bmc_memory, OBJECT(&s->bmc), "bmc-memory",
                       UINT64_MAX);
    memory_region_init_ram(&s->bmc_dram, OBJECT(&s->bmc), "bmc-dram",
                           FBY35_BMC_RAM_SIZE, &error_abort);

    object_property_set_int(OBJECT(&s->bmc), "ram-size", FBY35_BMC_RAM_SIZE,
                            &error_abort);
    object_property_set_link(OBJECT(&s->bmc), "memory", OBJECT(&s->bmc_memory),
                             &error_abort);
    object_property_set_link(OBJECT(&s->bmc), "dram", OBJECT(&s->bmc_dram),
                             &error_abort);
    object_property_set_int(OBJECT(&s->bmc), "hw-strap1", 0x000000C0,
                            &error_abort);
    object_property_set_int(OBJECT(&s->bmc), "hw-strap2", 0x00000003,
                            &error_abort);
    aspeed_soc_uart_set_chr(soc, ASPEED_DEV_UART5, serial_hd(0));
    qdev_realize(DEVICE(&s->bmc), NULL, &error_abort);

    aspeed_board_init_flashes(&soc->fmc, "n25q00", 2, 0);

    /* Install first FMC flash content as a boot rom. */
    if (!s->mmio_exec) {
        DriveInfo *mtd0 = drive_get(IF_MTD, 0, 0);

        if (mtd0) {
            uint64_t rom_size = memory_region_size(&soc->spi_boot);

            memory_region_init_rom(&s->bmc_boot_rom, NULL, "aspeed.boot_rom",
                                   rom_size, &error_abort);
            memory_region_add_subregion_overlap(&soc->spi_boot_container, 0,
                                                &s->bmc_boot_rom, 1);

            fby35_bmc_write_boot_rom(mtd0, &s->bmc_boot_rom,
                                     FBY35_BMC_FIRMWARE_ADDR,
                                     rom_size, &error_abort);
        }
    }
}

static void fby35_bic_init(Fby35State *s)
{
    AspeedSoCState *soc;

    s->bic_sysclk = clock_new(OBJECT(s), "SYSCLK");
    clock_set_hz(s->bic_sysclk, 200000000ULL);

    object_initialize_child(OBJECT(s), "bic", &s->bic, "ast1030-a1");
    soc = ASPEED_SOC(&s->bic);

    memory_region_init(&s->bic_memory, OBJECT(&s->bic), "bic-memory",
                       UINT64_MAX);

    qdev_connect_clock_in(DEVICE(&s->bic), "sysclk", s->bic_sysclk);
    object_property_set_link(OBJECT(&s->bic), "memory", OBJECT(&s->bic_memory),
                             &error_abort);
    aspeed_soc_uart_set_chr(soc, ASPEED_DEV_UART5, serial_hd(1));
    qdev_realize(DEVICE(&s->bic), NULL, &error_abort);

    aspeed_board_init_flashes(&soc->fmc, "sst25vf032b", 2, 2);
    aspeed_board_init_flashes(&soc->spi[0], "sst25vf032b", 2, 4);
    aspeed_board_init_flashes(&soc->spi[1], "sst25vf032b", 2, 6);
}

static void fby35_init(MachineState *machine)
{
    Fby35State *s = FBY35(machine);

    fby35_bmc_init(s);
    fby35_bic_init(s);
}


static bool fby35_get_mmio_exec(Object *obj, Error **errp)
{
    return FBY35(obj)->mmio_exec;
}

static void fby35_set_mmio_exec(Object *obj, bool value, Error **errp)
{
    FBY35(obj)->mmio_exec = value;
}

static void fby35_instance_init(Object *obj)
{
    FBY35(obj)->mmio_exec = false;
}

static void fby35_class_init(ObjectClass *oc, void *data)
{
    MachineClass *mc = MACHINE_CLASS(oc);

    mc->desc = "Meta Platforms fby35";
    mc->init = fby35_init;
    mc->no_floppy = 1;
    mc->no_cdrom = 1;
    mc->min_cpus = mc->max_cpus = mc->default_cpus = 3;

    object_class_property_add_bool(oc, "execute-in-place",
                                   fby35_get_mmio_exec,
                                   fby35_set_mmio_exec);
    object_class_property_set_description(oc, "execute-in-place",
                           "boot directly from CE0 flash device");
}

static const TypeInfo fby35_types[] = {
    {
        .name = MACHINE_TYPE_NAME("fby35"),
        .parent = TYPE_MACHINE,
        .class_init = fby35_class_init,
        .instance_size = sizeof(Fby35State),
        .instance_init = fby35_instance_init,
    },
};

DEFINE_TYPES(fby35_types);