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
|
/*
* Bananapi M2U emulation
*
* Copyright (C) 2023 qianfan Zhao <qianfanguijin@163.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "qemu/osdep.h"
#include "qemu/units.h"
#include "exec/address-spaces.h"
#include "qapi/error.h"
#include "qemu/error-report.h"
#include "hw/boards.h"
#include "hw/i2c/i2c.h"
#include "hw/qdev-properties.h"
#include "hw/arm/allwinner-r40.h"
static struct arm_boot_info bpim2u_binfo;
/*
* R40 can boot from mmc0 and mmc2, and bpim2u has two mmc interface, one is
* connected to sdcard and another mount an emmc media.
* Attach the mmc driver and try loading bootloader.
*/
static void mmc_attach_drive(AwR40State *s, AwSdHostState *mmc, int unit,
bool load_bootroom, bool *bootroom_loaded)
{
DriveInfo *di = drive_get(IF_SD, 0, unit);
BlockBackend *blk = di ? blk_by_legacy_dinfo(di) : NULL;
BusState *bus;
DeviceState *carddev;
bus = qdev_get_child_bus(DEVICE(mmc), "sd-bus");
if (bus == NULL) {
error_report("No SD bus found in SOC object");
exit(1);
}
carddev = qdev_new(TYPE_SD_CARD);
qdev_prop_set_drive_err(carddev, "drive", blk, &error_fatal);
qdev_realize_and_unref(carddev, bus, &error_fatal);
if (load_bootroom && blk && blk_is_available(blk)) {
/* Use Boot ROM to copy data from SD card to SRAM */
*bootroom_loaded = allwinner_r40_bootrom_setup(s, blk, unit);
}
}
static void bpim2u_init(MachineState *machine)
{
bool bootroom_loaded = false;
AwR40State *r40;
I2CBus *i2c;
/* BIOS is not supported by this board */
if (machine->firmware) {
error_report("BIOS not supported for this machine");
exit(1);
}
/* Only allow Cortex-A7 for this board */
if (strcmp(machine->cpu_type, ARM_CPU_TYPE_NAME("cortex-a7")) != 0) {
error_report("This board can only be used with cortex-a7 CPU");
exit(1);
}
r40 = AW_R40(object_new(TYPE_AW_R40));
object_property_add_child(OBJECT(machine), "soc", OBJECT(r40));
object_unref(OBJECT(r40));
/* Setup timer properties */
object_property_set_int(OBJECT(r40), "clk0-freq", 32768, &error_abort);
object_property_set_int(OBJECT(r40), "clk1-freq", 24 * 1000 * 1000,
&error_abort);
/* DRAMC */
r40->ram_size = machine->ram_size / MiB;
object_property_set_uint(OBJECT(r40), "ram-addr",
r40->memmap[AW_R40_DEV_SDRAM], &error_abort);
object_property_set_int(OBJECT(r40), "ram-size",
r40->ram_size, &error_abort);
/* GMAC PHY */
object_property_set_uint(OBJECT(r40), "gmac-phy-addr", 1, &error_abort);
/* Mark R40 object realized */
qdev_realize(DEVICE(r40), NULL, &error_abort);
/*
* Plug in SD card and try load bootrom, R40 has 4 mmc controllers but can
* only booting from mmc0 and mmc2.
*/
for (int i = 0; i < AW_R40_NUM_MMCS; i++) {
switch (i) {
case 0:
case 2:
mmc_attach_drive(r40, &r40->mmc[i], i,
!machine->kernel_filename && !bootroom_loaded,
&bootroom_loaded);
break;
default:
mmc_attach_drive(r40, &r40->mmc[i], i, false, NULL);
break;
}
}
/* Connect AXP221 */
i2c = I2C_BUS(qdev_get_child_bus(DEVICE(&r40->i2c0), "i2c"));
i2c_slave_create_simple(i2c, "axp221_pmu", 0x34);
/* SDRAM */
memory_region_add_subregion(get_system_memory(),
r40->memmap[AW_R40_DEV_SDRAM], machine->ram);
bpim2u_binfo.loader_start = r40->memmap[AW_R40_DEV_SDRAM];
bpim2u_binfo.ram_size = machine->ram_size;
bpim2u_binfo.psci_conduit = QEMU_PSCI_CONDUIT_SMC;
arm_load_kernel(ARM_CPU(first_cpu), machine, &bpim2u_binfo);
}
static void bpim2u_machine_init(MachineClass *mc)
{
mc->desc = "Bananapi M2U (Cortex-A7)";
mc->init = bpim2u_init;
mc->min_cpus = AW_R40_NUM_CPUS;
mc->max_cpus = AW_R40_NUM_CPUS;
mc->default_cpus = AW_R40_NUM_CPUS;
mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-a7");
mc->default_ram_size = 1 * GiB;
mc->default_ram_id = "bpim2u.ram";
}
DEFINE_MACHINE("bpim2u", bpim2u_machine_init)
|
