xref: /openbmc/qemu/hw/arm/orangepi.c (revision 7d87775f)
1 /*
2  * Orange Pi emulation
3  *
4  * Copyright (C) 2019 Niek Linnenbank <nieklinnenbank@gmail.com>
5  *
6  * This program is free software: you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation, either version 2 of the License, or
9  * (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
18  */
19 
20 #include "qemu/osdep.h"
21 #include "qemu/units.h"
22 #include "exec/address-spaces.h"
23 #include "qapi/error.h"
24 #include "qemu/error-report.h"
25 #include "hw/boards.h"
26 #include "hw/qdev-properties.h"
27 #include "hw/arm/allwinner-h3.h"
28 #include "hw/arm/boot.h"
29 
30 static struct arm_boot_info orangepi_binfo;
31 
32 static void orangepi_init(MachineState *machine)
33 {
34     AwH3State *h3;
35     DriveInfo *di;
36     BlockBackend *blk;
37     BusState *bus;
38     DeviceState *carddev;
39 
40     /* BIOS is not supported by this board */
41     if (machine->firmware) {
42         error_report("BIOS not supported for this machine");
43         exit(1);
44     }
45 
46     /* This board has fixed size RAM */
47     if (machine->ram_size != 1 * GiB) {
48         error_report("This machine can only be used with 1GiB of RAM");
49         exit(1);
50     }
51 
52     h3 = AW_H3(object_new(TYPE_AW_H3));
53     object_property_add_child(OBJECT(machine), "soc", OBJECT(h3));
54     object_unref(OBJECT(h3));
55 
56     /* Setup timer properties */
57     object_property_set_int(OBJECT(h3), "clk0-freq", 32768, &error_abort);
58     object_property_set_int(OBJECT(h3), "clk1-freq", 24 * 1000 * 1000,
59                             &error_abort);
60 
61     /* Setup SID properties. Currently using a default fixed SID identifier. */
62     if (qemu_uuid_is_null(&h3->sid.identifier)) {
63         qdev_prop_set_string(DEVICE(h3), "identifier",
64                              "02c00081-1111-2222-3333-000044556677");
65     } else if (ldl_be_p(&h3->sid.identifier.data[0]) != 0x02c00081) {
66         warn_report("Security Identifier value does not include H3 prefix");
67     }
68 
69     /* Setup EMAC properties */
70     object_property_set_int(OBJECT(&h3->emac), "phy-addr", 1, &error_abort);
71 
72     /* DRAMC */
73     object_property_set_uint(OBJECT(h3), "ram-addr", h3->memmap[AW_H3_DEV_SDRAM],
74                              &error_abort);
75     object_property_set_int(OBJECT(h3), "ram-size", machine->ram_size / MiB,
76                             &error_abort);
77 
78     /* Mark H3 object realized */
79     qdev_realize(DEVICE(h3), NULL, &error_abort);
80 
81     /* Retrieve SD bus */
82     di = drive_get(IF_SD, 0, 0);
83     blk = di ? blk_by_legacy_dinfo(di) : NULL;
84     bus = qdev_get_child_bus(DEVICE(h3), "sd-bus");
85 
86     /* Plug in SD card */
87     carddev = qdev_new(TYPE_SD_CARD);
88     qdev_prop_set_drive_err(carddev, "drive", blk, &error_fatal);
89     qdev_realize_and_unref(carddev, bus, &error_fatal);
90 
91     /* SDRAM */
92     memory_region_add_subregion(get_system_memory(), h3->memmap[AW_H3_DEV_SDRAM],
93                                 machine->ram);
94 
95     /* Load target kernel or start using BootROM */
96     if (!machine->kernel_filename && blk && blk_is_available(blk)) {
97         /* Use Boot ROM to copy data from SD card to SRAM */
98         allwinner_h3_bootrom_setup(h3, blk);
99     }
100     orangepi_binfo.loader_start = h3->memmap[AW_H3_DEV_SDRAM];
101     orangepi_binfo.ram_size = machine->ram_size;
102     orangepi_binfo.psci_conduit = QEMU_PSCI_CONDUIT_SMC;
103     arm_load_kernel(&h3->cpus[0], machine, &orangepi_binfo);
104 }
105 
106 static void orangepi_machine_init(MachineClass *mc)
107 {
108     static const char * const valid_cpu_types[] = {
109         ARM_CPU_TYPE_NAME("cortex-a7"),
110         NULL
111     };
112 
113     mc->desc = "Orange Pi PC (Cortex-A7)";
114     mc->init = orangepi_init;
115     mc->block_default_type = IF_SD;
116     mc->units_per_default_bus = 1;
117     mc->min_cpus = AW_H3_NUM_CPUS;
118     mc->max_cpus = AW_H3_NUM_CPUS;
119     mc->default_cpus = AW_H3_NUM_CPUS;
120     mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-a7");
121     mc->valid_cpu_types = valid_cpu_types;
122     mc->default_ram_size = 1 * GiB;
123     mc->default_ram_id = "orangepi.ram";
124 }
125 
126 DEFINE_MACHINE("orangepi-pc", orangepi_machine_init)
127