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xemu/hw/arm/aspeed_soc.c
Andrew Jeffery c59f781e3b hw/misc: Model KCS devices in the Aspeed LPC controller 
Keyboard-Controller-Style devices for IPMI purposes are exposed via LPC
IO cycles from the BMC to the host.

Expose support on the BMC side by implementing the usual MMIO
behaviours, and expose the ability to inspect the KCS registers in
"host" style by accessing QOM properties associated with each register.

The model caters to the IRQ style of both the AST2600 and the earlier
SoCs (AST2400 and AST2500). The AST2600 allocates an IRQ for each LPC
sub-device, while there is a single IRQ shared across all subdevices on
the AST2400 and AST2500.

Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20210302014317.915120-6-andrew@aj.id.au>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2021-03-09 12:01:28 +01:00

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/*
* ASPEED SoC family
*
* Andrew Jeffery <andrew@aj.id.au>
* Jeremy Kerr <jk@ozlabs.org>
*
* Copyright 2016 IBM Corp.
*
* 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 "qapi/error.h"
#include "cpu.h"
#include "exec/address-spaces.h"
#include "hw/misc/unimp.h"
#include "hw/arm/aspeed_soc.h"
#include "hw/char/serial.h"
#include "qemu/log.h"
#include "qemu/module.h"
#include "qemu/error-report.h"
#include "hw/i2c/aspeed_i2c.h"
#include "net/net.h"
#include "sysemu/sysemu.h"
#define ASPEED_SOC_IOMEM_SIZE 0x00200000
static const hwaddr aspeed_soc_ast2400_memmap[] = {
[ASPEED_DEV_IOMEM] = 0x1E600000,
[ASPEED_DEV_FMC] = 0x1E620000,
[ASPEED_DEV_SPI1] = 0x1E630000,
[ASPEED_DEV_EHCI1] = 0x1E6A1000,
[ASPEED_DEV_VIC] = 0x1E6C0000,
[ASPEED_DEV_SDMC] = 0x1E6E0000,
[ASPEED_DEV_SCU] = 0x1E6E2000,
[ASPEED_DEV_XDMA] = 0x1E6E7000,
[ASPEED_DEV_VIDEO] = 0x1E700000,
[ASPEED_DEV_ADC] = 0x1E6E9000,
[ASPEED_DEV_SRAM] = 0x1E720000,
[ASPEED_DEV_SDHCI] = 0x1E740000,
[ASPEED_DEV_GPIO] = 0x1E780000,
[ASPEED_DEV_RTC] = 0x1E781000,
[ASPEED_DEV_TIMER1] = 0x1E782000,
[ASPEED_DEV_WDT] = 0x1E785000,
[ASPEED_DEV_PWM] = 0x1E786000,
[ASPEED_DEV_LPC] = 0x1E789000,
[ASPEED_DEV_IBT] = 0x1E789140,
[ASPEED_DEV_I2C] = 0x1E78A000,
[ASPEED_DEV_ETH1] = 0x1E660000,
[ASPEED_DEV_ETH2] = 0x1E680000,
[ASPEED_DEV_UART1] = 0x1E783000,
[ASPEED_DEV_UART5] = 0x1E784000,
[ASPEED_DEV_VUART] = 0x1E787000,
[ASPEED_DEV_SDRAM] = 0x40000000,
};
static const hwaddr aspeed_soc_ast2500_memmap[] = {
[ASPEED_DEV_IOMEM] = 0x1E600000,
[ASPEED_DEV_FMC] = 0x1E620000,
[ASPEED_DEV_SPI1] = 0x1E630000,
[ASPEED_DEV_SPI2] = 0x1E631000,
[ASPEED_DEV_EHCI1] = 0x1E6A1000,
[ASPEED_DEV_EHCI2] = 0x1E6A3000,
[ASPEED_DEV_VIC] = 0x1E6C0000,
[ASPEED_DEV_SDMC] = 0x1E6E0000,
[ASPEED_DEV_SCU] = 0x1E6E2000,
[ASPEED_DEV_XDMA] = 0x1E6E7000,
[ASPEED_DEV_ADC] = 0x1E6E9000,
[ASPEED_DEV_VIDEO] = 0x1E700000,
[ASPEED_DEV_SRAM] = 0x1E720000,
[ASPEED_DEV_SDHCI] = 0x1E740000,
[ASPEED_DEV_GPIO] = 0x1E780000,
[ASPEED_DEV_RTC] = 0x1E781000,
[ASPEED_DEV_TIMER1] = 0x1E782000,
[ASPEED_DEV_WDT] = 0x1E785000,
[ASPEED_DEV_PWM] = 0x1E786000,
[ASPEED_DEV_LPC] = 0x1E789000,
[ASPEED_DEV_IBT] = 0x1E789140,
[ASPEED_DEV_I2C] = 0x1E78A000,
[ASPEED_DEV_ETH1] = 0x1E660000,
[ASPEED_DEV_ETH2] = 0x1E680000,
[ASPEED_DEV_UART1] = 0x1E783000,
[ASPEED_DEV_UART5] = 0x1E784000,
[ASPEED_DEV_VUART] = 0x1E787000,
[ASPEED_DEV_SDRAM] = 0x80000000,
};
static const int aspeed_soc_ast2400_irqmap[] = {
[ASPEED_DEV_UART1] = 9,
[ASPEED_DEV_UART2] = 32,
[ASPEED_DEV_UART3] = 33,
[ASPEED_DEV_UART4] = 34,
[ASPEED_DEV_UART5] = 10,
[ASPEED_DEV_VUART] = 8,
[ASPEED_DEV_FMC] = 19,
[ASPEED_DEV_EHCI1] = 5,
[ASPEED_DEV_EHCI2] = 13,
[ASPEED_DEV_SDMC] = 0,
[ASPEED_DEV_SCU] = 21,
[ASPEED_DEV_ADC] = 31,
[ASPEED_DEV_GPIO] = 20,
[ASPEED_DEV_RTC] = 22,
[ASPEED_DEV_TIMER1] = 16,
[ASPEED_DEV_TIMER2] = 17,
[ASPEED_DEV_TIMER3] = 18,
[ASPEED_DEV_TIMER4] = 35,
[ASPEED_DEV_TIMER5] = 36,
[ASPEED_DEV_TIMER6] = 37,
[ASPEED_DEV_TIMER7] = 38,
[ASPEED_DEV_TIMER8] = 39,
[ASPEED_DEV_WDT] = 27,
[ASPEED_DEV_PWM] = 28,
[ASPEED_DEV_LPC] = 8,
[ASPEED_DEV_I2C] = 12,
[ASPEED_DEV_ETH1] = 2,
[ASPEED_DEV_ETH2] = 3,
[ASPEED_DEV_XDMA] = 6,
[ASPEED_DEV_SDHCI] = 26,
};
#define aspeed_soc_ast2500_irqmap aspeed_soc_ast2400_irqmap
static qemu_irq aspeed_soc_get_irq(AspeedSoCState *s, int ctrl)
{
AspeedSoCClass *sc = ASPEED_SOC_GET_CLASS(s);
return qdev_get_gpio_in(DEVICE(&s->vic), sc->irqmap[ctrl]);
}
static void aspeed_soc_init(Object *obj)
{
AspeedSoCState *s = ASPEED_SOC(obj);
AspeedSoCClass *sc = ASPEED_SOC_GET_CLASS(s);
int i;
char socname[8];
char typename[64];
if (sscanf(sc->name, "%7s", socname) != 1) {
g_assert_not_reached();
}
for (i = 0; i < sc->num_cpus; i++) {
object_initialize_child(obj, "cpu[*]", &s->cpu[i], sc->cpu_type);
}
snprintf(typename, sizeof(typename), "aspeed.scu-%s", socname);
object_initialize_child(obj, "scu", &s->scu, typename);
qdev_prop_set_uint32(DEVICE(&s->scu), "silicon-rev",
sc->silicon_rev);
object_property_add_alias(obj, "hw-strap1", OBJECT(&s->scu),
"hw-strap1");
object_property_add_alias(obj, "hw-strap2", OBJECT(&s->scu),
"hw-strap2");
object_property_add_alias(obj, "hw-prot-key", OBJECT(&s->scu),
"hw-prot-key");
object_initialize_child(obj, "vic", &s->vic, TYPE_ASPEED_VIC);
object_initialize_child(obj, "rtc", &s->rtc, TYPE_ASPEED_RTC);
snprintf(typename, sizeof(typename), "aspeed.timer-%s", socname);
object_initialize_child(obj, "timerctrl", &s->timerctrl, typename);
snprintf(typename, sizeof(typename), "aspeed.i2c-%s", socname);
object_initialize_child(obj, "i2c", &s->i2c, typename);
snprintf(typename, sizeof(typename), "aspeed.fmc-%s", socname);
object_initialize_child(obj, "fmc", &s->fmc, typename);
object_property_add_alias(obj, "num-cs", OBJECT(&s->fmc), "num-cs");
for (i = 0; i < sc->spis_num; i++) {
snprintf(typename, sizeof(typename), "aspeed.spi%d-%s", i + 1, socname);
object_initialize_child(obj, "spi[*]", &s->spi[i], typename);
}
for (i = 0; i < sc->ehcis_num; i++) {
object_initialize_child(obj, "ehci[*]", &s->ehci[i],
TYPE_PLATFORM_EHCI);
}
snprintf(typename, sizeof(typename), "aspeed.sdmc-%s", socname);
object_initialize_child(obj, "sdmc", &s->sdmc, typename);
object_property_add_alias(obj, "ram-size", OBJECT(&s->sdmc),
"ram-size");
object_property_add_alias(obj, "max-ram-size", OBJECT(&s->sdmc),
"max-ram-size");
for (i = 0; i < sc->wdts_num; i++) {
snprintf(typename, sizeof(typename), "aspeed.wdt-%s", socname);
object_initialize_child(obj, "wdt[*]", &s->wdt[i], typename);
}
for (i = 0; i < sc->macs_num; i++) {
object_initialize_child(obj, "ftgmac100[*]", &s->ftgmac100[i],
TYPE_FTGMAC100);
}
object_initialize_child(obj, "xdma", &s->xdma, TYPE_ASPEED_XDMA);
snprintf(typename, sizeof(typename), "aspeed.gpio-%s", socname);
object_initialize_child(obj, "gpio", &s->gpio, typename);
object_initialize_child(obj, "sdc", &s->sdhci, TYPE_ASPEED_SDHCI);
object_property_set_int(OBJECT(&s->sdhci), "num-slots", 2, &error_abort);
/* Init sd card slot class here so that they're under the correct parent */
for (i = 0; i < ASPEED_SDHCI_NUM_SLOTS; ++i) {
object_initialize_child(obj, "sdhci[*]", &s->sdhci.slots[i],
TYPE_SYSBUS_SDHCI);
}
object_initialize_child(obj, "lpc", &s->lpc, TYPE_ASPEED_LPC);
}
static void aspeed_soc_realize(DeviceState *dev, Error **errp)
{
int i;
AspeedSoCState *s = ASPEED_SOC(dev);
AspeedSoCClass *sc = ASPEED_SOC_GET_CLASS(s);
Error *err = NULL;
/* IO space */
create_unimplemented_device("aspeed_soc.io", sc->memmap[ASPEED_DEV_IOMEM],
ASPEED_SOC_IOMEM_SIZE);
/* Video engine stub */
create_unimplemented_device("aspeed.video", sc->memmap[ASPEED_DEV_VIDEO],
0x1000);
/* CPU */
for (i = 0; i < sc->num_cpus; i++) {
if (!qdev_realize(DEVICE(&s->cpu[i]), NULL, errp)) {
return;
}
}
/* SRAM */
memory_region_init_ram(&s->sram, OBJECT(dev), "aspeed.sram",
sc->sram_size, &err);
if (err) {
error_propagate(errp, err);
return;
}
memory_region_add_subregion(get_system_memory(),
sc->memmap[ASPEED_DEV_SRAM], &s->sram);
/* SCU */
if (!sysbus_realize(SYS_BUS_DEVICE(&s->scu), errp)) {
return;
}
sysbus_mmio_map(SYS_BUS_DEVICE(&s->scu), 0, sc->memmap[ASPEED_DEV_SCU]);
/* VIC */
if (!sysbus_realize(SYS_BUS_DEVICE(&s->vic), errp)) {
return;
}
sysbus_mmio_map(SYS_BUS_DEVICE(&s->vic), 0, sc->memmap[ASPEED_DEV_VIC]);
sysbus_connect_irq(SYS_BUS_DEVICE(&s->vic), 0,
qdev_get_gpio_in(DEVICE(&s->cpu), ARM_CPU_IRQ));
sysbus_connect_irq(SYS_BUS_DEVICE(&s->vic), 1,
qdev_get_gpio_in(DEVICE(&s->cpu), ARM_CPU_FIQ));
/* RTC */
if (!sysbus_realize(SYS_BUS_DEVICE(&s->rtc), errp)) {
return;
}
sysbus_mmio_map(SYS_BUS_DEVICE(&s->rtc), 0, sc->memmap[ASPEED_DEV_RTC]);
sysbus_connect_irq(SYS_BUS_DEVICE(&s->rtc), 0,
aspeed_soc_get_irq(s, ASPEED_DEV_RTC));
/* Timer */
object_property_set_link(OBJECT(&s->timerctrl), "scu", OBJECT(&s->scu),
&error_abort);
if (!sysbus_realize(SYS_BUS_DEVICE(&s->timerctrl), errp)) {
return;
}
sysbus_mmio_map(SYS_BUS_DEVICE(&s->timerctrl), 0,
sc->memmap[ASPEED_DEV_TIMER1]);
for (i = 0; i < ASPEED_TIMER_NR_TIMERS; i++) {
qemu_irq irq = aspeed_soc_get_irq(s, ASPEED_DEV_TIMER1 + i);
sysbus_connect_irq(SYS_BUS_DEVICE(&s->timerctrl), i, irq);
}
/* UART - attach an 8250 to the IO space as our UART5 */
serial_mm_init(get_system_memory(), sc->memmap[ASPEED_DEV_UART5], 2,
aspeed_soc_get_irq(s, ASPEED_DEV_UART5), 38400,
serial_hd(0), DEVICE_LITTLE_ENDIAN);
/* I2C */
object_property_set_link(OBJECT(&s->i2c), "dram", OBJECT(s->dram_mr),
&error_abort);
if (!sysbus_realize(SYS_BUS_DEVICE(&s->i2c), errp)) {
return;
}
sysbus_mmio_map(SYS_BUS_DEVICE(&s->i2c), 0, sc->memmap[ASPEED_DEV_I2C]);
sysbus_connect_irq(SYS_BUS_DEVICE(&s->i2c), 0,
aspeed_soc_get_irq(s, ASPEED_DEV_I2C));
/* FMC, The number of CS is set at the board level */
object_property_set_link(OBJECT(&s->fmc), "dram", OBJECT(s->dram_mr),
&error_abort);
if (!object_property_set_int(OBJECT(&s->fmc), "sdram-base",
sc->memmap[ASPEED_DEV_SDRAM], errp)) {
return;
}
if (!sysbus_realize(SYS_BUS_DEVICE(&s->fmc), errp)) {
return;
}
sysbus_mmio_map(SYS_BUS_DEVICE(&s->fmc), 0, sc->memmap[ASPEED_DEV_FMC]);
sysbus_mmio_map(SYS_BUS_DEVICE(&s->fmc), 1,
s->fmc.ctrl->flash_window_base);
sysbus_connect_irq(SYS_BUS_DEVICE(&s->fmc), 0,
aspeed_soc_get_irq(s, ASPEED_DEV_FMC));
/* SPI */
for (i = 0; i < sc->spis_num; i++) {
object_property_set_int(OBJECT(&s->spi[i]), "num-cs", 1, &error_abort);
if (!sysbus_realize(SYS_BUS_DEVICE(&s->spi[i]), errp)) {
return;
}
sysbus_mmio_map(SYS_BUS_DEVICE(&s->spi[i]), 0,
sc->memmap[ASPEED_DEV_SPI1 + i]);
sysbus_mmio_map(SYS_BUS_DEVICE(&s->spi[i]), 1,
s->spi[i].ctrl->flash_window_base);
}
/* EHCI */
for (i = 0; i < sc->ehcis_num; i++) {
if (!sysbus_realize(SYS_BUS_DEVICE(&s->ehci[i]), errp)) {
return;
}
sysbus_mmio_map(SYS_BUS_DEVICE(&s->ehci[i]), 0,
sc->memmap[ASPEED_DEV_EHCI1 + i]);
sysbus_connect_irq(SYS_BUS_DEVICE(&s->ehci[i]), 0,
aspeed_soc_get_irq(s, ASPEED_DEV_EHCI1 + i));
}
/* SDMC - SDRAM Memory Controller */
if (!sysbus_realize(SYS_BUS_DEVICE(&s->sdmc), errp)) {
return;
}
sysbus_mmio_map(SYS_BUS_DEVICE(&s->sdmc), 0, sc->memmap[ASPEED_DEV_SDMC]);
/* Watch dog */
for (i = 0; i < sc->wdts_num; i++) {
AspeedWDTClass *awc = ASPEED_WDT_GET_CLASS(&s->wdt[i]);
object_property_set_link(OBJECT(&s->wdt[i]), "scu", OBJECT(&s->scu),
&error_abort);
if (!sysbus_realize(SYS_BUS_DEVICE(&s->wdt[i]), errp)) {
return;
}
sysbus_mmio_map(SYS_BUS_DEVICE(&s->wdt[i]), 0,
sc->memmap[ASPEED_DEV_WDT] + i * awc->offset);
}
/* Net */
for (i = 0; i < sc->macs_num; i++) {
object_property_set_bool(OBJECT(&s->ftgmac100[i]), "aspeed", true,
&error_abort);
if (!sysbus_realize(SYS_BUS_DEVICE(&s->ftgmac100[i]), errp)) {
return;
}
sysbus_mmio_map(SYS_BUS_DEVICE(&s->ftgmac100[i]), 0,
sc->memmap[ASPEED_DEV_ETH1 + i]);
sysbus_connect_irq(SYS_BUS_DEVICE(&s->ftgmac100[i]), 0,
aspeed_soc_get_irq(s, ASPEED_DEV_ETH1 + i));
}
/* XDMA */
if (!sysbus_realize(SYS_BUS_DEVICE(&s->xdma), errp)) {
return;
}
sysbus_mmio_map(SYS_BUS_DEVICE(&s->xdma), 0,
sc->memmap[ASPEED_DEV_XDMA]);
sysbus_connect_irq(SYS_BUS_DEVICE(&s->xdma), 0,
aspeed_soc_get_irq(s, ASPEED_DEV_XDMA));
/* GPIO */
if (!sysbus_realize(SYS_BUS_DEVICE(&s->gpio), errp)) {
return;
}
sysbus_mmio_map(SYS_BUS_DEVICE(&s->gpio), 0, sc->memmap[ASPEED_DEV_GPIO]);
sysbus_connect_irq(SYS_BUS_DEVICE(&s->gpio), 0,
aspeed_soc_get_irq(s, ASPEED_DEV_GPIO));
/* SDHCI */
if (!sysbus_realize(SYS_BUS_DEVICE(&s->sdhci), errp)) {
return;
}
sysbus_mmio_map(SYS_BUS_DEVICE(&s->sdhci), 0,
sc->memmap[ASPEED_DEV_SDHCI]);
sysbus_connect_irq(SYS_BUS_DEVICE(&s->sdhci), 0,
aspeed_soc_get_irq(s, ASPEED_DEV_SDHCI));
/* LPC */
if (!sysbus_realize(SYS_BUS_DEVICE(&s->lpc), errp)) {
return;
}
sysbus_mmio_map(SYS_BUS_DEVICE(&s->lpc), 0, sc->memmap[ASPEED_DEV_LPC]);
/* Connect the LPC IRQ to the VIC */
sysbus_connect_irq(SYS_BUS_DEVICE(&s->lpc), 0,
aspeed_soc_get_irq(s, ASPEED_DEV_LPC));
/*
* On the AST2400 and AST2500 the one LPC IRQ is shared between all of the
* subdevices. Connect the LPC subdevice IRQs to the LPC controller IRQ (by
* contrast, on the AST2600, the subdevice IRQs are connected straight to
* the GIC).
*
* LPC subdevice IRQ sources are offset from 1 because the shared IRQ output
* to the VIC is at offset 0.
*/
sysbus_connect_irq(SYS_BUS_DEVICE(&s->lpc), 1 + aspeed_lpc_kcs_1,
qdev_get_gpio_in(DEVICE(&s->lpc), aspeed_lpc_kcs_1));
sysbus_connect_irq(SYS_BUS_DEVICE(&s->lpc), 1 + aspeed_lpc_kcs_2,
qdev_get_gpio_in(DEVICE(&s->lpc), aspeed_lpc_kcs_2));
sysbus_connect_irq(SYS_BUS_DEVICE(&s->lpc), 1 + aspeed_lpc_kcs_3,
qdev_get_gpio_in(DEVICE(&s->lpc), aspeed_lpc_kcs_3));
sysbus_connect_irq(SYS_BUS_DEVICE(&s->lpc), 1 + aspeed_lpc_kcs_4,
qdev_get_gpio_in(DEVICE(&s->lpc), aspeed_lpc_kcs_4));
}
static Property aspeed_soc_properties[] = {
DEFINE_PROP_LINK("dram", AspeedSoCState, dram_mr, TYPE_MEMORY_REGION,
MemoryRegion *),
DEFINE_PROP_END_OF_LIST(),
};
static void aspeed_soc_class_init(ObjectClass *oc, void *data)
{
DeviceClass *dc = DEVICE_CLASS(oc);
dc->realize = aspeed_soc_realize;
/* Reason: Uses serial_hds and nd_table in realize() directly */
dc->user_creatable = false;
device_class_set_props(dc, aspeed_soc_properties);
}
static const TypeInfo aspeed_soc_type_info = {
.name = TYPE_ASPEED_SOC,
.parent = TYPE_DEVICE,
.instance_size = sizeof(AspeedSoCState),
.class_size = sizeof(AspeedSoCClass),
.class_init = aspeed_soc_class_init,
.abstract = true,
};
static void aspeed_soc_ast2400_class_init(ObjectClass *oc, void *data)
{
AspeedSoCClass *sc = ASPEED_SOC_CLASS(oc);
sc->name = "ast2400-a1";
sc->cpu_type = ARM_CPU_TYPE_NAME("arm926");
sc->silicon_rev = AST2400_A1_SILICON_REV;
sc->sram_size = 0x8000;
sc->spis_num = 1;
sc->ehcis_num = 1;
sc->wdts_num = 2;
sc->macs_num = 2;
sc->irqmap = aspeed_soc_ast2400_irqmap;
sc->memmap = aspeed_soc_ast2400_memmap;
sc->num_cpus = 1;
}
static const TypeInfo aspeed_soc_ast2400_type_info = {
.name = "ast2400-a1",
.parent = TYPE_ASPEED_SOC,
.instance_init = aspeed_soc_init,
.instance_size = sizeof(AspeedSoCState),
.class_init = aspeed_soc_ast2400_class_init,
};
static void aspeed_soc_ast2500_class_init(ObjectClass *oc, void *data)
{
AspeedSoCClass *sc = ASPEED_SOC_CLASS(oc);
sc->name = "ast2500-a1";
sc->cpu_type = ARM_CPU_TYPE_NAME("arm1176");
sc->silicon_rev = AST2500_A1_SILICON_REV;
sc->sram_size = 0x9000;
sc->spis_num = 2;
sc->ehcis_num = 2;
sc->wdts_num = 3;
sc->macs_num = 2;
sc->irqmap = aspeed_soc_ast2500_irqmap;
sc->memmap = aspeed_soc_ast2500_memmap;
sc->num_cpus = 1;
}
static const TypeInfo aspeed_soc_ast2500_type_info = {
.name = "ast2500-a1",
.parent = TYPE_ASPEED_SOC,
.instance_init = aspeed_soc_init,
.instance_size = sizeof(AspeedSoCState),
.class_init = aspeed_soc_ast2500_class_init,
};
static void aspeed_soc_register_types(void)
{
type_register_static(&aspeed_soc_type_info);
type_register_static(&aspeed_soc_ast2400_type_info);
type_register_static(&aspeed_soc_ast2500_type_info);
};
type_init(aspeed_soc_register_types)
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