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qemu/hw/arm/allwinner-h3.c
Niek Linnenbank a9ad9e73a7 hw/arm/allwinner: add RTC device support 
Allwinner System-on-Chips usually contain a Real Time Clock (RTC)
for non-volatile system date and time keeping. This commit adds a generic
Allwinner RTC device that supports the RTC devices found in Allwinner SoC
family sun4i (A10), sun7i (A20) and sun6i and newer (A31, H2+, H3, etc).
The following RTC functionality and features are implemented:

 * Year-Month-Day read/write
 * Hour-Minute-Second read/write
 * General Purpose storage

The following boards are extended with the RTC device:

 * Cubieboard (hw/arm/cubieboard.c)
 * Orange Pi PC (hw/arm/orangepi.c)

Signed-off-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20200311221854.30370-13-nieklinnenbank@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-03-12 16:27:33 +00:00

466 lines
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/*
* Allwinner H3 System on Chip emulation
*
* Copyright (C) 2019 Niek Linnenbank <nieklinnenbank@gmail.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 "exec/address-spaces.h"
#include "qapi/error.h"
#include "qemu/error-report.h"
#include "qemu/module.h"
#include "qemu/units.h"
#include "hw/qdev-core.h"
#include "cpu.h"
#include "hw/sysbus.h"
#include "hw/char/serial.h"
#include "hw/misc/unimp.h"
#include "hw/usb/hcd-ehci.h"
#include "hw/loader.h"
#include "sysemu/sysemu.h"
#include "hw/arm/allwinner-h3.h"
/* Memory map */
const hwaddr allwinner_h3_memmap[] = {
[AW_H3_SRAM_A1] = 0x00000000,
[AW_H3_SRAM_A2] = 0x00044000,
[AW_H3_SRAM_C] = 0x00010000,
[AW_H3_SYSCTRL] = 0x01c00000,
[AW_H3_MMC0] = 0x01c0f000,
[AW_H3_SID] = 0x01c14000,
[AW_H3_EHCI0] = 0x01c1a000,
[AW_H3_OHCI0] = 0x01c1a400,
[AW_H3_EHCI1] = 0x01c1b000,
[AW_H3_OHCI1] = 0x01c1b400,
[AW_H3_EHCI2] = 0x01c1c000,
[AW_H3_OHCI2] = 0x01c1c400,
[AW_H3_EHCI3] = 0x01c1d000,
[AW_H3_OHCI3] = 0x01c1d400,
[AW_H3_CCU] = 0x01c20000,
[AW_H3_PIT] = 0x01c20c00,
[AW_H3_UART0] = 0x01c28000,
[AW_H3_UART1] = 0x01c28400,
[AW_H3_UART2] = 0x01c28800,
[AW_H3_UART3] = 0x01c28c00,
[AW_H3_EMAC] = 0x01c30000,
[AW_H3_DRAMCOM] = 0x01c62000,
[AW_H3_DRAMCTL] = 0x01c63000,
[AW_H3_DRAMPHY] = 0x01c65000,
[AW_H3_GIC_DIST] = 0x01c81000,
[AW_H3_GIC_CPU] = 0x01c82000,
[AW_H3_GIC_HYP] = 0x01c84000,
[AW_H3_GIC_VCPU] = 0x01c86000,
[AW_H3_RTC] = 0x01f00000,
[AW_H3_CPUCFG] = 0x01f01c00,
[AW_H3_SDRAM] = 0x40000000
};
/* List of unimplemented devices */
struct AwH3Unimplemented {
const char *device_name;
hwaddr base;
hwaddr size;
} unimplemented[] = {
{ "d-engine", 0x01000000, 4 * MiB },
{ "d-inter", 0x01400000, 128 * KiB },
{ "dma", 0x01c02000, 4 * KiB },
{ "nfdc", 0x01c03000, 4 * KiB },
{ "ts", 0x01c06000, 4 * KiB },
{ "keymem", 0x01c0b000, 4 * KiB },
{ "lcd0", 0x01c0c000, 4 * KiB },
{ "lcd1", 0x01c0d000, 4 * KiB },
{ "ve", 0x01c0e000, 4 * KiB },
{ "mmc1", 0x01c10000, 4 * KiB },
{ "mmc2", 0x01c11000, 4 * KiB },
{ "crypto", 0x01c15000, 4 * KiB },
{ "msgbox", 0x01c17000, 4 * KiB },
{ "spinlock", 0x01c18000, 4 * KiB },
{ "usb0-otg", 0x01c19000, 4 * KiB },
{ "usb0-phy", 0x01c1a000, 4 * KiB },
{ "usb1-phy", 0x01c1b000, 4 * KiB },
{ "usb2-phy", 0x01c1c000, 4 * KiB },
{ "usb3-phy", 0x01c1d000, 4 * KiB },
{ "smc", 0x01c1e000, 4 * KiB },
{ "pio", 0x01c20800, 1 * KiB },
{ "owa", 0x01c21000, 1 * KiB },
{ "pwm", 0x01c21400, 1 * KiB },
{ "keyadc", 0x01c21800, 1 * KiB },
{ "pcm0", 0x01c22000, 1 * KiB },
{ "pcm1", 0x01c22400, 1 * KiB },
{ "pcm2", 0x01c22800, 1 * KiB },
{ "audio", 0x01c22c00, 2 * KiB },
{ "smta", 0x01c23400, 1 * KiB },
{ "ths", 0x01c25000, 1 * KiB },
{ "uart0", 0x01c28000, 1 * KiB },
{ "uart1", 0x01c28400, 1 * KiB },
{ "uart2", 0x01c28800, 1 * KiB },
{ "uart3", 0x01c28c00, 1 * KiB },
{ "twi0", 0x01c2ac00, 1 * KiB },
{ "twi1", 0x01c2b000, 1 * KiB },
{ "twi2", 0x01c2b400, 1 * KiB },
{ "scr", 0x01c2c400, 1 * KiB },
{ "gpu", 0x01c40000, 64 * KiB },
{ "hstmr", 0x01c60000, 4 * KiB },
{ "spi0", 0x01c68000, 4 * KiB },
{ "spi1", 0x01c69000, 4 * KiB },
{ "csi", 0x01cb0000, 320 * KiB },
{ "tve", 0x01e00000, 64 * KiB },
{ "hdmi", 0x01ee0000, 128 * KiB },
{ "r_timer", 0x01f00800, 1 * KiB },
{ "r_intc", 0x01f00c00, 1 * KiB },
{ "r_wdog", 0x01f01000, 1 * KiB },
{ "r_prcm", 0x01f01400, 1 * KiB },
{ "r_twd", 0x01f01800, 1 * KiB },
{ "r_cir-rx", 0x01f02000, 1 * KiB },
{ "r_twi", 0x01f02400, 1 * KiB },
{ "r_uart", 0x01f02800, 1 * KiB },
{ "r_pio", 0x01f02c00, 1 * KiB },
{ "r_pwm", 0x01f03800, 1 * KiB },
{ "core-dbg", 0x3f500000, 128 * KiB },
{ "tsgen-ro", 0x3f506000, 4 * KiB },
{ "tsgen-ctl", 0x3f507000, 4 * KiB },
{ "ddr-mem", 0x40000000, 2 * GiB },
{ "n-brom", 0xffff0000, 32 * KiB },
{ "s-brom", 0xffff0000, 64 * KiB }
};
/* Per Processor Interrupts */
enum {
AW_H3_GIC_PPI_MAINT = 9,
AW_H3_GIC_PPI_HYPTIMER = 10,
AW_H3_GIC_PPI_VIRTTIMER = 11,
AW_H3_GIC_PPI_SECTIMER = 13,
AW_H3_GIC_PPI_PHYSTIMER = 14
};
/* Shared Processor Interrupts */
enum {
AW_H3_GIC_SPI_UART0 = 0,
AW_H3_GIC_SPI_UART1 = 1,
AW_H3_GIC_SPI_UART2 = 2,
AW_H3_GIC_SPI_UART3 = 3,
AW_H3_GIC_SPI_TIMER0 = 18,
AW_H3_GIC_SPI_TIMER1 = 19,
AW_H3_GIC_SPI_MMC0 = 60,
AW_H3_GIC_SPI_EHCI0 = 72,
AW_H3_GIC_SPI_OHCI0 = 73,
AW_H3_GIC_SPI_EHCI1 = 74,
AW_H3_GIC_SPI_OHCI1 = 75,
AW_H3_GIC_SPI_EHCI2 = 76,
AW_H3_GIC_SPI_OHCI2 = 77,
AW_H3_GIC_SPI_EHCI3 = 78,
AW_H3_GIC_SPI_OHCI3 = 79,
AW_H3_GIC_SPI_EMAC = 82
};
/* Allwinner H3 general constants */
enum {
AW_H3_GIC_NUM_SPI = 128
};
void allwinner_h3_bootrom_setup(AwH3State *s, BlockBackend *blk)
{
const int64_t rom_size = 32 * KiB;
g_autofree uint8_t *buffer = g_new0(uint8_t, rom_size);
if (blk_pread(blk, 8 * KiB, buffer, rom_size) < 0) {
error_setg(&error_fatal, "%s: failed to read BlockBackend data",
__func__);
return;
}
rom_add_blob("allwinner-h3.bootrom", buffer, rom_size,
rom_size, s->memmap[AW_H3_SRAM_A1],
NULL, NULL, NULL, NULL, false);
}
static void allwinner_h3_init(Object *obj)
{
AwH3State *s = AW_H3(obj);
s->memmap = allwinner_h3_memmap;
for (int i = 0; i < AW_H3_NUM_CPUS; i++) {
object_initialize_child(obj, "cpu[*]", &s->cpus[i], sizeof(s->cpus[i]),
ARM_CPU_TYPE_NAME("cortex-a7"),
&error_abort, NULL);
}
sysbus_init_child_obj(obj, "gic", &s->gic, sizeof(s->gic),
TYPE_ARM_GIC);
sysbus_init_child_obj(obj, "timer", &s->timer, sizeof(s->timer),
TYPE_AW_A10_PIT);
object_property_add_alias(obj, "clk0-freq", OBJECT(&s->timer),
"clk0-freq", &error_abort);
object_property_add_alias(obj, "clk1-freq", OBJECT(&s->timer),
"clk1-freq", &error_abort);
sysbus_init_child_obj(obj, "ccu", &s->ccu, sizeof(s->ccu),
TYPE_AW_H3_CCU);
sysbus_init_child_obj(obj, "sysctrl", &s->sysctrl, sizeof(s->sysctrl),
TYPE_AW_H3_SYSCTRL);
sysbus_init_child_obj(obj, "cpucfg", &s->cpucfg, sizeof(s->cpucfg),
TYPE_AW_CPUCFG);
sysbus_init_child_obj(obj, "sid", &s->sid, sizeof(s->sid),
TYPE_AW_SID);
object_property_add_alias(obj, "identifier", OBJECT(&s->sid),
"identifier", &error_abort);
sysbus_init_child_obj(obj, "mmc0", &s->mmc0, sizeof(s->mmc0),
TYPE_AW_SDHOST_SUN5I);
sysbus_init_child_obj(obj, "emac", &s->emac, sizeof(s->emac),
TYPE_AW_SUN8I_EMAC);
sysbus_init_child_obj(obj, "dramc", &s->dramc, sizeof(s->dramc),
TYPE_AW_H3_DRAMC);
object_property_add_alias(obj, "ram-addr", OBJECT(&s->dramc),
"ram-addr", &error_abort);
object_property_add_alias(obj, "ram-size", OBJECT(&s->dramc),
"ram-size", &error_abort);
sysbus_init_child_obj(obj, "rtc", &s->rtc, sizeof(s->rtc),
TYPE_AW_RTC_SUN6I);
}
static void allwinner_h3_realize(DeviceState *dev, Error **errp)
{
AwH3State *s = AW_H3(dev);
unsigned i;
/* CPUs */
for (i = 0; i < AW_H3_NUM_CPUS; i++) {
/* Provide Power State Coordination Interface */
qdev_prop_set_int32(DEVICE(&s->cpus[i]), "psci-conduit",
QEMU_PSCI_CONDUIT_HVC);
/* Disable secondary CPUs */
qdev_prop_set_bit(DEVICE(&s->cpus[i]), "start-powered-off",
i > 0);
/* All exception levels required */
qdev_prop_set_bit(DEVICE(&s->cpus[i]), "has_el3", true);
qdev_prop_set_bit(DEVICE(&s->cpus[i]), "has_el2", true);
/* Mark realized */
qdev_init_nofail(DEVICE(&s->cpus[i]));
}
/* Generic Interrupt Controller */
qdev_prop_set_uint32(DEVICE(&s->gic), "num-irq", AW_H3_GIC_NUM_SPI +
GIC_INTERNAL);
qdev_prop_set_uint32(DEVICE(&s->gic), "revision", 2);
qdev_prop_set_uint32(DEVICE(&s->gic), "num-cpu", AW_H3_NUM_CPUS);
qdev_prop_set_bit(DEVICE(&s->gic), "has-security-extensions", false);
qdev_prop_set_bit(DEVICE(&s->gic), "has-virtualization-extensions", true);
qdev_init_nofail(DEVICE(&s->gic));
sysbus_mmio_map(SYS_BUS_DEVICE(&s->gic), 0, s->memmap[AW_H3_GIC_DIST]);
sysbus_mmio_map(SYS_BUS_DEVICE(&s->gic), 1, s->memmap[AW_H3_GIC_CPU]);
sysbus_mmio_map(SYS_BUS_DEVICE(&s->gic), 2, s->memmap[AW_H3_GIC_HYP]);
sysbus_mmio_map(SYS_BUS_DEVICE(&s->gic), 3, s->memmap[AW_H3_GIC_VCPU]);
/*
* Wire the outputs from each CPU's generic timer and the GICv3
* maintenance interrupt signal to the appropriate GIC PPI inputs,
* and the GIC's IRQ/FIQ/VIRQ/VFIQ interrupt outputs to the CPU's inputs.
*/
for (i = 0; i < AW_H3_NUM_CPUS; i++) {
DeviceState *cpudev = DEVICE(&s->cpus[i]);
int ppibase = AW_H3_GIC_NUM_SPI + i * GIC_INTERNAL + GIC_NR_SGIS;
int irq;
/*
* Mapping from the output timer irq lines from the CPU to the
* GIC PPI inputs used for this board.
*/
const int timer_irq[] = {
[GTIMER_PHYS] = AW_H3_GIC_PPI_PHYSTIMER,
[GTIMER_VIRT] = AW_H3_GIC_PPI_VIRTTIMER,
[GTIMER_HYP] = AW_H3_GIC_PPI_HYPTIMER,
[GTIMER_SEC] = AW_H3_GIC_PPI_SECTIMER,
};
/* Connect CPU timer outputs to GIC PPI inputs */
for (irq = 0; irq < ARRAY_SIZE(timer_irq); irq++) {
qdev_connect_gpio_out(cpudev, irq,
qdev_get_gpio_in(DEVICE(&s->gic),
ppibase + timer_irq[irq]));
}
/* Connect GIC outputs to CPU interrupt inputs */
sysbus_connect_irq(SYS_BUS_DEVICE(&s->gic), i,
qdev_get_gpio_in(cpudev, ARM_CPU_IRQ));
sysbus_connect_irq(SYS_BUS_DEVICE(&s->gic), i + AW_H3_NUM_CPUS,
qdev_get_gpio_in(cpudev, ARM_CPU_FIQ));
sysbus_connect_irq(SYS_BUS_DEVICE(&s->gic), i + (2 * AW_H3_NUM_CPUS),
qdev_get_gpio_in(cpudev, ARM_CPU_VIRQ));
sysbus_connect_irq(SYS_BUS_DEVICE(&s->gic), i + (3 * AW_H3_NUM_CPUS),
qdev_get_gpio_in(cpudev, ARM_CPU_VFIQ));
/* GIC maintenance signal */
sysbus_connect_irq(SYS_BUS_DEVICE(&s->gic), i + (4 * AW_H3_NUM_CPUS),
qdev_get_gpio_in(DEVICE(&s->gic),
ppibase + AW_H3_GIC_PPI_MAINT));
}
/* Timer */
qdev_init_nofail(DEVICE(&s->timer));
sysbus_mmio_map(SYS_BUS_DEVICE(&s->timer), 0, s->memmap[AW_H3_PIT]);
sysbus_connect_irq(SYS_BUS_DEVICE(&s->timer), 0,
qdev_get_gpio_in(DEVICE(&s->gic), AW_H3_GIC_SPI_TIMER0));
sysbus_connect_irq(SYS_BUS_DEVICE(&s->timer), 1,
qdev_get_gpio_in(DEVICE(&s->gic), AW_H3_GIC_SPI_TIMER1));
/* SRAM */
memory_region_init_ram(&s->sram_a1, OBJECT(dev), "sram A1",
64 * KiB, &error_abort);
memory_region_init_ram(&s->sram_a2, OBJECT(dev), "sram A2",
32 * KiB, &error_abort);
memory_region_init_ram(&s->sram_c, OBJECT(dev), "sram C",
44 * KiB, &error_abort);
memory_region_add_subregion(get_system_memory(), s->memmap[AW_H3_SRAM_A1],
&s->sram_a1);
memory_region_add_subregion(get_system_memory(), s->memmap[AW_H3_SRAM_A2],
&s->sram_a2);
memory_region_add_subregion(get_system_memory(), s->memmap[AW_H3_SRAM_C],
&s->sram_c);
/* Clock Control Unit */
qdev_init_nofail(DEVICE(&s->ccu));
sysbus_mmio_map(SYS_BUS_DEVICE(&s->ccu), 0, s->memmap[AW_H3_CCU]);
/* System Control */
qdev_init_nofail(DEVICE(&s->sysctrl));
sysbus_mmio_map(SYS_BUS_DEVICE(&s->sysctrl), 0, s->memmap[AW_H3_SYSCTRL]);
/* CPU Configuration */
qdev_init_nofail(DEVICE(&s->cpucfg));
sysbus_mmio_map(SYS_BUS_DEVICE(&s->cpucfg), 0, s->memmap[AW_H3_CPUCFG]);
/* Security Identifier */
qdev_init_nofail(DEVICE(&s->sid));
sysbus_mmio_map(SYS_BUS_DEVICE(&s->sid), 0, s->memmap[AW_H3_SID]);
/* SD/MMC */
qdev_init_nofail(DEVICE(&s->mmc0));
sysbus_mmio_map(SYS_BUS_DEVICE(&s->mmc0), 0, s->memmap[AW_H3_MMC0]);
sysbus_connect_irq(SYS_BUS_DEVICE(&s->mmc0), 0,
qdev_get_gpio_in(DEVICE(&s->gic), AW_H3_GIC_SPI_MMC0));
object_property_add_alias(OBJECT(s), "sd-bus", OBJECT(&s->mmc0),
"sd-bus", &error_abort);
/* EMAC */
if (nd_table[0].used) {
qemu_check_nic_model(&nd_table[0], TYPE_AW_SUN8I_EMAC);
qdev_set_nic_properties(DEVICE(&s->emac), &nd_table[0]);
}
qdev_init_nofail(DEVICE(&s->emac));
sysbus_mmio_map(SYS_BUS_DEVICE(&s->emac), 0, s->memmap[AW_H3_EMAC]);
sysbus_connect_irq(SYS_BUS_DEVICE(&s->emac), 0,
qdev_get_gpio_in(DEVICE(&s->gic), AW_H3_GIC_SPI_EMAC));
/* Universal Serial Bus */
sysbus_create_simple(TYPE_AW_H3_EHCI, s->memmap[AW_H3_EHCI0],
qdev_get_gpio_in(DEVICE(&s->gic),
AW_H3_GIC_SPI_EHCI0));
sysbus_create_simple(TYPE_AW_H3_EHCI, s->memmap[AW_H3_EHCI1],
qdev_get_gpio_in(DEVICE(&s->gic),
AW_H3_GIC_SPI_EHCI1));
sysbus_create_simple(TYPE_AW_H3_EHCI, s->memmap[AW_H3_EHCI2],
qdev_get_gpio_in(DEVICE(&s->gic),
AW_H3_GIC_SPI_EHCI2));
sysbus_create_simple(TYPE_AW_H3_EHCI, s->memmap[AW_H3_EHCI3],
qdev_get_gpio_in(DEVICE(&s->gic),
AW_H3_GIC_SPI_EHCI3));
sysbus_create_simple("sysbus-ohci", s->memmap[AW_H3_OHCI0],
qdev_get_gpio_in(DEVICE(&s->gic),
AW_H3_GIC_SPI_OHCI0));
sysbus_create_simple("sysbus-ohci", s->memmap[AW_H3_OHCI1],
qdev_get_gpio_in(DEVICE(&s->gic),
AW_H3_GIC_SPI_OHCI1));
sysbus_create_simple("sysbus-ohci", s->memmap[AW_H3_OHCI2],
qdev_get_gpio_in(DEVICE(&s->gic),
AW_H3_GIC_SPI_OHCI2));
sysbus_create_simple("sysbus-ohci", s->memmap[AW_H3_OHCI3],
qdev_get_gpio_in(DEVICE(&s->gic),
AW_H3_GIC_SPI_OHCI3));
/* UART0. For future clocktree API: All UARTS are connected to APB2_CLK. */
serial_mm_init(get_system_memory(), s->memmap[AW_H3_UART0], 2,
qdev_get_gpio_in(DEVICE(&s->gic), AW_H3_GIC_SPI_UART0),
115200, serial_hd(0), DEVICE_NATIVE_ENDIAN);
/* UART1 */
serial_mm_init(get_system_memory(), s->memmap[AW_H3_UART1], 2,
qdev_get_gpio_in(DEVICE(&s->gic), AW_H3_GIC_SPI_UART1),
115200, serial_hd(1), DEVICE_NATIVE_ENDIAN);
/* UART2 */
serial_mm_init(get_system_memory(), s->memmap[AW_H3_UART2], 2,
qdev_get_gpio_in(DEVICE(&s->gic), AW_H3_GIC_SPI_UART2),
115200, serial_hd(2), DEVICE_NATIVE_ENDIAN);
/* UART3 */
serial_mm_init(get_system_memory(), s->memmap[AW_H3_UART3], 2,
qdev_get_gpio_in(DEVICE(&s->gic), AW_H3_GIC_SPI_UART3),
115200, serial_hd(3), DEVICE_NATIVE_ENDIAN);
/* DRAMC */
qdev_init_nofail(DEVICE(&s->dramc));
sysbus_mmio_map(SYS_BUS_DEVICE(&s->dramc), 0, s->memmap[AW_H3_DRAMCOM]);
sysbus_mmio_map(SYS_BUS_DEVICE(&s->dramc), 1, s->memmap[AW_H3_DRAMCTL]);
sysbus_mmio_map(SYS_BUS_DEVICE(&s->dramc), 2, s->memmap[AW_H3_DRAMPHY]);
/* RTC */
qdev_init_nofail(DEVICE(&s->rtc));
sysbus_mmio_map(SYS_BUS_DEVICE(&s->rtc), 0, s->memmap[AW_H3_RTC]);
/* Unimplemented devices */
for (i = 0; i < ARRAY_SIZE(unimplemented); i++) {
create_unimplemented_device(unimplemented[i].device_name,
unimplemented[i].base,
unimplemented[i].size);
}
}
static void allwinner_h3_class_init(ObjectClass *oc, void *data)
{
DeviceClass *dc = DEVICE_CLASS(oc);
dc->realize = allwinner_h3_realize;
/* Reason: uses serial_hd() in realize function */
dc->user_creatable = false;
}
static const TypeInfo allwinner_h3_type_info = {
.name = TYPE_AW_H3,
.parent = TYPE_DEVICE,
.instance_size = sizeof(AwH3State),
.instance_init = allwinner_h3_init,
.class_init = allwinner_h3_class_init,
};
static void allwinner_h3_register_types(void)
{
type_register_static(&allwinner_h3_type_info);
}
type_init(allwinner_h3_register_types)
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