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RE: [PATCH v3 12/16] aspeed/soc: Add AST2700 support


From: Jamin Lin
Subject: RE: [PATCH v3 12/16] aspeed/soc: Add AST2700 support
Date: Fri, 19 Apr 2024 07:58:37 +0000

Hi Cedric, 
> On 4/16/24 11:18, Jamin Lin wrote:
> > Initial definitions for a simple machine using an AST2700 SOC (Cortex-a35
> CPU).
> >
> > AST2700 SOC and its interrupt controller are too complex to handle in
> > the common Aspeed SoC framework. We introduce a new ast2700 class with
> > instance_init and realize handlers.
> >
> > AST2700 is a 64 bits quad core cpus and support 8 watchdog.
> > Update maximum ASPEED_CPUS_NUM to 4 and ASPEED_WDTS_NUM to 8.
> > In addition, update AspeedSocState to support scuio, sli, sliio and intc.
> >
> > Add TYPE_ASPEED27X0_SOC machine type.
> >
> > The SDMC controller is unlocked at SPL stage.
> > At present, only supports to emulate booting start from u-boot stage.
> > Set SDMC controller unlocked by default.
> >
> > In INTC, each interrupt of INT 128 to INT 136 combines 32 interrupts.
> > It connect GICINT IRQ GPIO-OUTPUT pins to GIC device with irq 128 to 136.
> > And, if a device irq is 128 to 136, its irq GPIO-OUTPUT pin is
> > connected to GICINT or-gates instead of GIC device.
> >
> > Signed-off-by: Troy Lee <troy_lee@aspeedtech.com>
> > Signed-off-by: Jamin Lin <jamin_lin@aspeedtech.com>
> 
> Before I forget, please see a little comment below regarding user creatable
> devices.
> 
> The model looks fine. The interrupt controller part is more complex than the
> previous SoCs so I will come back to it later when I have more time. 
Thanks for your kindly support.
> > ---
> >   hw/arm/aspeed_ast27x0.c     | 554
> ++++++++++++++++++++++++++++++++++++
> >   hw/arm/meson.build          |   1 +
> >   include/hw/arm/aspeed_soc.h |  26 +-
> >   3 files changed, 579 insertions(+), 2 deletions(-)
> >   create mode 100644 hw/arm/aspeed_ast27x0.c
> >
> > diff --git a/hw/arm/aspeed_ast27x0.c b/hw/arm/aspeed_ast27x0.c new
> > file mode 100644 index 0000000000..754c963230
> > --- /dev/null
> > +++ b/hw/arm/aspeed_ast27x0.c
> > @@ -0,0 +1,554 @@
> > +/*
> > + * ASPEED SoC 27x0 family
> > + *
> > + * Copyright (C) 2024 ASPEED Technology Inc.
> > + *
> > + * This code is licensed under the GPL version 2 or later.  See
> > + * the COPYING file in the top-level directory.
> > + *
> > + * Implementation extracted from the AST2600 and adapted for AST27x0.
> > + */
> > +
> > +#include "qemu/osdep.h"
> > +#include "qapi/error.h"
> > +#include "hw/misc/unimp.h"
> > +#include "hw/arm/aspeed_soc.h"
> > +#include "qemu/module.h"
> > +#include "qemu/error-report.h"
> > +#include "hw/i2c/aspeed_i2c.h"
> > +#include "net/net.h"
> > +#include "sysemu/sysemu.h"
> > +#include "hw/intc/arm_gicv3.h"
> > +#include "qapi/qmp/qlist.h"
> > +
> > +static const hwaddr aspeed_soc_ast2700_memmap[] = {
> > +    [ASPEED_DEV_SPI_BOOT]  =  0x400000000,
> > +    [ASPEED_DEV_SRAM]      =  0x10000000,
> > +    [ASPEED_DEV_SDMC]      =  0x12C00000,
> > +    [ASPEED_DEV_SCU]       =  0x12C02000,
> > +    [ASPEED_DEV_SCUIO]     =  0x14C02000,
> > +    [ASPEED_DEV_UART0]     =  0X14C33000,
> > +    [ASPEED_DEV_UART1]     =  0X14C33100,
> > +    [ASPEED_DEV_UART2]     =  0X14C33200,
> > +    [ASPEED_DEV_UART3]     =  0X14C33300,
> > +    [ASPEED_DEV_UART4]     =  0X12C1A000,
> > +    [ASPEED_DEV_UART5]     =  0X14C33400,
> > +    [ASPEED_DEV_UART6]     =  0X14C33500,
> > +    [ASPEED_DEV_UART7]     =  0X14C33600,
> > +    [ASPEED_DEV_UART8]     =  0X14C33700,
> > +    [ASPEED_DEV_UART9]     =  0X14C33800,
> > +    [ASPEED_DEV_UART10]    =  0X14C33900,
> > +    [ASPEED_DEV_UART11]    =  0X14C33A00,
> > +    [ASPEED_DEV_UART12]    =  0X14C33B00,
> > +    [ASPEED_DEV_WDT]       =  0x14C37000,
> > +    [ASPEED_DEV_VUART]     =  0X14C30000,
> > +    [ASPEED_DEV_FMC]       =  0x14000000,
> > +    [ASPEED_DEV_SPI0]      =  0x14010000,
> > +    [ASPEED_DEV_SPI1]      =  0x14020000,
> > +    [ASPEED_DEV_SPI2]      =  0x14030000,
> > +    [ASPEED_DEV_SDRAM]     =  0x400000000,
> > +    [ASPEED_DEV_MII1]      =  0x14040000,
> > +    [ASPEED_DEV_MII2]      =  0x14040008,
> > +    [ASPEED_DEV_MII3]      =  0x14040010,
> > +    [ASPEED_DEV_ETH1]      =  0x14050000,
> > +    [ASPEED_DEV_ETH2]      =  0x14060000,
> > +    [ASPEED_DEV_ETH3]      =  0x14070000,
> > +    [ASPEED_DEV_EMMC]      =  0x12090000,
> > +    [ASPEED_DEV_INTC]      =  0x12100000,
> > +    [ASPEED_DEV_SLI]       =  0x12C17000,
> > +    [ASPEED_DEV_SLIIO]     =  0x14C1E000,
> > +    [ASPEED_GIC_DIST]      =  0x12200000,
> > +    [ASPEED_GIC_REDIST]    =  0x12280000,
> > +};
> > +
> > +#define AST2700_MAX_IRQ 288
> > +
> > +/* Shared Peripheral Interrupt values below are offset by -32 from
> > +datasheet */ static const int aspeed_soc_ast2700_irqmap[] = {
> > +    [ASPEED_DEV_UART0]     = 132,
> > +    [ASPEED_DEV_UART1]     = 132,
> > +    [ASPEED_DEV_UART2]     = 132,
> > +    [ASPEED_DEV_UART3]     = 132,
> > +    [ASPEED_DEV_UART4]     = 8,
> > +    [ASPEED_DEV_UART5]     = 132,
> > +    [ASPEED_DEV_UART6]     = 132,
> > +    [ASPEED_DEV_UART7]     = 132,
> > +    [ASPEED_DEV_UART8]     = 132,
> > +    [ASPEED_DEV_UART9]     = 132,
> > +    [ASPEED_DEV_UART10]    = 132,
> > +    [ASPEED_DEV_UART11]    = 132,
> > +    [ASPEED_DEV_UART12]    = 132,
> > +    [ASPEED_DEV_FMC]       = 131,
> > +    [ASPEED_DEV_SDMC]      = 0,
> > +    [ASPEED_DEV_SCU]       = 12,
> > +    [ASPEED_DEV_ADC]       = 130,
> > +    [ASPEED_DEV_XDMA]      = 5,
> > +    [ASPEED_DEV_EMMC]      = 15,
> > +    [ASPEED_DEV_GPIO]      = 11,
> > +    [ASPEED_DEV_GPIO_1_8V] = 130,
> > +    [ASPEED_DEV_RTC]       = 13,
> > +    [ASPEED_DEV_TIMER1]    = 16,
> > +    [ASPEED_DEV_TIMER2]    = 17,
> > +    [ASPEED_DEV_TIMER3]    = 18,
> > +    [ASPEED_DEV_TIMER4]    = 19,
> > +    [ASPEED_DEV_TIMER5]    = 20,
> > +    [ASPEED_DEV_TIMER6]    = 21,
> > +    [ASPEED_DEV_TIMER7]    = 22,
> > +    [ASPEED_DEV_TIMER8]    = 23,
> > +    [ASPEED_DEV_WDT]       = 131,
> > +    [ASPEED_DEV_PWM]       = 131,
> > +    [ASPEED_DEV_LPC]       = 128,
> > +    [ASPEED_DEV_IBT]       = 128,
> > +    [ASPEED_DEV_I2C]       = 130,
> > +    [ASPEED_DEV_PECI]      = 133,
> > +    [ASPEED_DEV_ETH1]      = 132,
> > +    [ASPEED_DEV_ETH2]      = 132,
> > +    [ASPEED_DEV_ETH3]      = 132,
> > +    [ASPEED_DEV_HACE]      = 4,
> > +    [ASPEED_DEV_KCS]       = 128,
> > +    [ASPEED_DEV_DP]        = 28,
> > +    [ASPEED_DEV_I3C]       = 131,
> > +};
> > +
> > +/* GICINT 128 */
> > +static const int aspeed_soc_ast2700_gic128_intcmap[] = {
> > +    [ASPEED_DEV_LPC]       = 0,
> > +    [ASPEED_DEV_IBT]       = 2,
> > +    [ASPEED_DEV_KCS]       = 4,
> > +};
> > +
> > +/* GICINT 130 */
> > +static const int aspeed_soc_ast2700_gic130_intcmap[] = {
> > +    [ASPEED_DEV_I2C]        = 0,
> > +    [ASPEED_DEV_ADC]        = 16,
> > +    [ASPEED_DEV_GPIO_1_8V]  = 18,
> > +};
> > +
> > +/* GICINT 131 */
> > +static const int aspeed_soc_ast2700_gic131_intcmap[] = {
> > +    [ASPEED_DEV_I3C]       = 0,
> > +    [ASPEED_DEV_WDT]       = 16,
> > +    [ASPEED_DEV_FMC]       = 25,
> > +    [ASPEED_DEV_PWM]       = 29,
> > +};
> > +
> > +/* GICINT 132 */
> > +static const int aspeed_soc_ast2700_gic132_intcmap[] = {
> > +    [ASPEED_DEV_ETH1]      = 0,
> > +    [ASPEED_DEV_ETH2]      = 1,
> > +    [ASPEED_DEV_ETH3]      = 2,
> > +    [ASPEED_DEV_UART0]     = 7,
> > +    [ASPEED_DEV_UART1]     = 8,
> > +    [ASPEED_DEV_UART2]     = 9,
> > +    [ASPEED_DEV_UART3]     = 10,
> > +    [ASPEED_DEV_UART5]     = 11,
> > +    [ASPEED_DEV_UART6]     = 12,
> > +    [ASPEED_DEV_UART7]     = 13,
> > +    [ASPEED_DEV_UART8]     = 14,
> > +    [ASPEED_DEV_UART9]     = 15,
> > +    [ASPEED_DEV_UART10]    = 16,
> > +    [ASPEED_DEV_UART11]    = 17,
> > +    [ASPEED_DEV_UART12]    = 18,
> > +};
> > +
> > +/* GICINT 133 */
> > +static const int aspeed_soc_ast2700_gic133_intcmap[] = {
> > +    [ASPEED_DEV_PECI]      = 4,
> > +};
> > +
> > +/* GICINT 128 ~ 136 */
> > +struct gic_intc_irq_info {
> > +    int irq;
> > +    const int *ptr;
> > +};
> > +
> > +static const struct gic_intc_irq_info aspeed_soc_ast2700_gic_intcmap[] = {
> > +    {128,  aspeed_soc_ast2700_gic128_intcmap},
> > +    {129,  NULL},
> > +    {130,  aspeed_soc_ast2700_gic130_intcmap},
> > +    {131,  aspeed_soc_ast2700_gic131_intcmap},
> > +    {132,  aspeed_soc_ast2700_gic132_intcmap},
> > +    {133,  aspeed_soc_ast2700_gic133_intcmap},
> > +    {134,  NULL},
> > +    {135,  NULL},
> > +    {136,  NULL},
> > +};
> > +
> > +static qemu_irq aspeed_soc_ast2700_get_irq(AspeedSoCState *s, int
> > +dev) {
> > +    Aspeed27x0SoCState *a = ASPEED27X0_SOC(s);
> > +    AspeedSoCClass *sc = ASPEED_SOC_GET_CLASS(s);
> > +    int i;
> > +
> > +    for (i = 0; i < ARRAY_SIZE(aspeed_soc_ast2700_gic_intcmap); i++) {
> > +        if (sc->irqmap[dev] == aspeed_soc_ast2700_gic_intcmap[i].irq) {
> > +            assert(aspeed_soc_ast2700_gic_intcmap[i].ptr);
> > +            return qdev_get_gpio_in(DEVICE(&a->intc.gicint_orgate[i]),
> > +                aspeed_soc_ast2700_gic_intcmap[i].ptr[dev]);
> > +        }
> > +    }
> > +
> > +    return qdev_get_gpio_in(a->intc.gic, sc->irqmap[dev]); }
> > +
> > +static void aspeed_soc_ast2700_init(Object *obj) {
> > +    Aspeed27x0SoCState *a = ASPEED27X0_SOC(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[*]", &a->cpu[i],
> > +                                aspeed_soc_cpu_type(sc));
> > +    }
> > +
> > +    object_initialize_child(obj, "scu", &s->scu, TYPE_ASPEED_2700_SCU);
> > +    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, "scuio", &s->scuio,
> TYPE_ASPEED_2700_SCUIO);
> > +    qdev_prop_set_uint32(DEVICE(&s->scuio), "silicon-rev",
> > +                         sc->silicon_rev);
> > +
> > +    snprintf(typename, sizeof(typename), "aspeed.fmc-%s", socname);
> > +    object_initialize_child(obj, "fmc", &s->fmc, typename);
> > +
> > +    for (i = 0; i < sc->spis_num; i++) {
> > +        snprintf(typename, sizeof(typename), "aspeed.spi%d-%s", i,
> socname);
> > +        object_initialize_child(obj, "spi[*]", &s->spi[i], typename);
> > +    }
> > +
> > +    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");
> > +
> > +    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, "mii[*]", &s->mii[i],
> TYPE_ASPEED_MII);
> > +    }
> > +
> > +    for (i = 0; i < sc->uarts_num; i++) {
> > +        object_initialize_child(obj, "uart[*]", &s->uart[i],
> TYPE_SERIAL_MM);
> > +    }
> > +
> > +    object_initialize_child(obj, "sli", &s->sli, TYPE_ASPEED_2700_SLI);
> > +    object_initialize_child(obj, "sliio", &s->sliio,
> TYPE_ASPEED_2700_SLIIO);
> > +    object_initialize_child(obj, "intc", &a->intc, TYPE_ASPEED_INTC);
> > +}
> > +
> > +/*
> > + * ASPEED ast2700 has 0x0 as cluster ID
> > + *
> > + *
> > +https://developer.arm.com/documentation/100236/0100/register-descript
> > +ions/aarch64-system-registers/multiprocessor-affinity-register--el1
> > + */
> > +static uint64_t aspeed_calc_affinity(int cpu) {
> > +    return (0x0 << ARM_AFF1_SHIFT) | cpu; }
> > +
> > +static void aspeed_soc_ast2700_gic(DeviceState *dev, Error **errp) {
> > +    Aspeed27x0SoCState *a = ASPEED27X0_SOC(dev);
> > +    AspeedSoCState *s = ASPEED_SOC(dev);
> > +    AspeedSoCClass *sc = ASPEED_SOC_GET_CLASS(s);
> > +    SysBusDevice *gicbusdev;
> > +    QList *redist_region_count;
> > +    int i;
> > +
> > +    a->intc.gic = qdev_new(gicv3_class_name());
> > +    qdev_prop_set_uint32(a->intc.gic, "revision", 3);
> > +    qdev_prop_set_uint32(a->intc.gic, "num-cpu", sc->num_cpus);
> > +    qdev_prop_set_uint32(a->intc.gic, "num-irq", AST2700_MAX_IRQ);
> > +
> > +    redist_region_count = qlist_new();
> > +    qlist_append_int(redist_region_count, sc->num_cpus);
> > +    qdev_prop_set_array(a->intc.gic, "redist-region-count",
> > +                            redist_region_count);
> > +
> > +    gicbusdev = SYS_BUS_DEVICE(a->intc.gic);
> > +    sysbus_realize_and_unref(gicbusdev, errp);
> > +    sysbus_mmio_map(gicbusdev, 0, sc->memmap[ASPEED_GIC_DIST]);
> > +    sysbus_mmio_map(gicbusdev, 1, sc->memmap[ASPEED_GIC_REDIST]);
> > +
> > +    for (i = 0; i < sc->num_cpus; i++) {
> > +        DeviceState *cpudev = DEVICE(qemu_get_cpu(i));
> > +        int NUM_IRQS = 256, ARCH_GIC_MAINT_IRQ = 9,
> VIRTUAL_PMU_IRQ = 7;
> > +        int ppibase = NUM_IRQS + i * GIC_INTERNAL + GIC_NR_SGIS;
> > +
> > +        const int timer_irq[] = {
> > +            [GTIMER_PHYS] = 14,
> > +            [GTIMER_VIRT] = 11,
> > +            [GTIMER_HYP]  = 10,
> > +            [GTIMER_SEC]  = 13,
> > +        };
> > +        int j;
> > +
> > +        for (j = 0; j < ARRAY_SIZE(timer_irq); j++) {
> > +            qdev_connect_gpio_out(cpudev, j,
> > +                    qdev_get_gpio_in(a->intc.gic, ppibase +
> timer_irq[j]));
> > +        }
> > +
> > +        qemu_irq irq = qdev_get_gpio_in(a->intc.gic,
> > +                                        ppibase +
> ARCH_GIC_MAINT_IRQ);
> > +        qdev_connect_gpio_out_named(cpudev,
> "gicv3-maintenance-interrupt",
> > +                                    0, irq);
> > +        qdev_connect_gpio_out_named(cpudev, "pmu-interrupt", 0,
> > +                qdev_get_gpio_in(a->intc.gic, ppibase +
> > + VIRTUAL_PMU_IRQ));
> > +
> > +        sysbus_connect_irq(gicbusdev, i, qdev_get_gpio_in(cpudev,
> ARM_CPU_IRQ));
> > +        sysbus_connect_irq(gicbusdev, i + sc->num_cpus,
> > +                           qdev_get_gpio_in(cpudev,
> ARM_CPU_FIQ));
> > +        sysbus_connect_irq(gicbusdev, i + 2 * sc->num_cpus,
> > +                           qdev_get_gpio_in(cpudev,
> ARM_CPU_VIRQ));
> > +        sysbus_connect_irq(gicbusdev, i + 3 * sc->num_cpus,
> > +                           qdev_get_gpio_in(cpudev,
> ARM_CPU_VFIQ));
> > +    }
> > +}
> > +
> > +static void aspeed_soc_ast2700_realize(DeviceState *dev, Error
> > +**errp) {
> > +    int i;
> > +    Aspeed27x0SoCState *a = ASPEED27X0_SOC(dev);
> > +    AspeedSoCState *s = ASPEED_SOC(dev);
> > +    AspeedSoCClass *sc = ASPEED_SOC_GET_CLASS(s);
> > +    g_autofree char *sram_name = NULL;
> > +
> > +    /* Default boot region (SPI memory or ROMs) */
> > +    memory_region_init(&s->spi_boot_container, OBJECT(s),
> > +                       "aspeed.spi_boot_container", 0x400000000);
> > +    memory_region_add_subregion(s->memory,
> sc->memmap[ASPEED_DEV_SPI_BOOT],
> > +                                &s->spi_boot_container);
> > +
> > +    /* CPU */
> > +    for (i = 0; i < sc->num_cpus; i++) {
> > +        object_property_set_int(OBJECT(&a->cpu[i]), "mp-affinity",
> > +                                aspeed_calc_affinity(i),
> > + &error_abort);
> > +
> > +        object_property_set_int(OBJECT(&a->cpu[i]), "cntfrq",
> 1125000000,
> > +                                &error_abort);
> > +        object_property_set_link(OBJECT(&a->cpu[i]), "memory",
> > +                                 OBJECT(s->memory),
> &error_abort);
> > +
> > +        if (!qdev_realize(DEVICE(&a->cpu[i]), NULL, errp)) {
> > +            return;
> > +        }
> > +    }
> > +
> > +    /* GIC */
> > +    aspeed_soc_ast2700_gic(dev, errp);
> 
> Hmm, we should return.
This function return type is void.
If I understand your request, do you mean do the following changes?

static bool aspeed_soc_ast2700_gic(DeviceState *dev, Error **errp) --> change 
return type bool
{
    ---
    gicbusdev = SYS_BUS_DEVICE(a->intc.gic); 
    if(!sysbus_realize(gicbusdev, errp)) {
        return false;
    }
    ---
    return true;
}

Then, 
/* GIC */
if(!aspeed_soc_ast2700_gic(dev, errp)) {
    return;
    }

Thanks-Jamin
> 
> > +
> > +    /* INTC */
> > +    if (!sysbus_realize(SYS_BUS_DEVICE(&a->intc), errp)) {
> > +        return;
> > +    }
> > +
> > +    aspeed_mmio_map(s, SYS_BUS_DEVICE(&a->intc), 0,
> > +                    sc->memmap[ASPEED_DEV_INTC]);
> > +
> > +    /* GICINT orgate -> INTC -> GIC */
> > +    for (i = 0; i < ASPEED_INTC_NR_GICS; i++) {
> > +        if (!qdev_realize(DEVICE(&a->intc.gicint_orgate[i]), NULL, errp)) {
> > +            return;
> > +        }
> > +
> > +        qdev_connect_gpio_out(DEVICE(&a->intc.gicint_orgate[i]), 0,
> > +                              qdev_get_gpio_in(DEVICE(&a->intc),
> i));
> > +
> > +        sysbus_connect_irq(SYS_BUS_DEVICE(&a->intc), i,
> > +                           qdev_get_gpio_in(a->intc.gic,
> > +
> aspeed_soc_ast2700_gic_intcmap[i].irq));
> > +    }
> > +
> > +    /* SRAM */
> > +    sram_name = g_strdup_printf("aspeed.sram.%d",
> CPU(&a->cpu[0])->cpu_index);
> > +    if (!memory_region_init_ram(&s->sram, OBJECT(s), sram_name,
> sc->sram_size,
> > +                                 errp)) {
> > +        return;
> > +    }
> > +    memory_region_add_subregion(s->memory,
> > +                                sc->memmap[ASPEED_DEV_SRAM],
> > + &s->sram);
> > +
> > +    /* SCU */
> > +    if (!sysbus_realize(SYS_BUS_DEVICE(&s->scu), errp)) {
> > +        return;
> > +    }
> > +    aspeed_mmio_map(s, SYS_BUS_DEVICE(&s->scu), 0,
> > + sc->memmap[ASPEED_DEV_SCU]);
> > +
> > +    /* SCU1 */
> > +    if (!sysbus_realize(SYS_BUS_DEVICE(&s->scuio), errp)) {
> > +        return;
> > +    }
> > +    aspeed_mmio_map(s, SYS_BUS_DEVICE(&s->scuio), 0,
> > +                    sc->memmap[ASPEED_DEV_SCUIO]);
> > +
> > +    /* UART */
> > +    if (!aspeed_soc_uart_realize(s, errp)) {
> > +        return;
> > +    }
> > +
> > +    /* 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 (!sysbus_realize(SYS_BUS_DEVICE(&s->fmc), errp)) {
> > +        return;
> > +    }
> > +    aspeed_mmio_map(s, SYS_BUS_DEVICE(&s->fmc), 0,
> sc->memmap[ASPEED_DEV_FMC]);
> > +    aspeed_mmio_map(s, SYS_BUS_DEVICE(&s->fmc), 1,
> > +
> ASPEED_SMC_GET_CLASS(&s->fmc)->flash_window_base);
> > +    sysbus_connect_irq(SYS_BUS_DEVICE(&s->fmc), 0,
> > +                       aspeed_soc_get_irq(s, ASPEED_DEV_FMC));
> > +
> > +    /* Set up an alias on the FMC CE0 region (boot default) */
> > +    MemoryRegion *fmc0_mmio = &s->fmc.flashes[0].mmio;
> > +    memory_region_init_alias(&s->spi_boot, OBJECT(s),
> "aspeed.spi_boot",
> > +                             fmc0_mmio, 0,
> memory_region_size(fmc0_mmio));
> > +    memory_region_add_subregion(&s->spi_boot_container, 0x0,
> > + &s->spi_boot);
> > +
> > +    /* SPI */
> > +    for (i = 0; i < sc->spis_num; i++) {
> > +        object_property_set_link(OBJECT(&s->spi[i]), "dram",
> > +                                 OBJECT(s->dram_mr),
> &error_abort);
> > +        if (!sysbus_realize(SYS_BUS_DEVICE(&s->spi[i]), errp)) {
> > +            return;
> > +        }
> > +        aspeed_mmio_map(s, SYS_BUS_DEVICE(&s->spi[i]), 0,
> > +                        sc->memmap[ASPEED_DEV_SPI0 + i]);
> > +        aspeed_mmio_map(s, SYS_BUS_DEVICE(&s->spi[i]), 1,
> > +
> ASPEED_SMC_GET_CLASS(&s->spi[i])->flash_window_base);
> > +    }
> > +
> > +    /*
> > +     * SDMC - SDRAM Memory Controller
> > +     * The SDMC controller is unlocked at SPL stage.
> > +     * At present, only supports to emulate booting
> > +     * start from u-boot stage. Set SDMC controller
> > +     * unlocked by default. It is a temporarily solution.
> > +     */
> > +    object_property_set_bool(OBJECT(&s->sdmc), "unlocked", true,
> > +                                 &error_abort);
> > +    if (!sysbus_realize(SYS_BUS_DEVICE(&s->sdmc), errp)) {
> > +        return;
> > +    }
> > +    aspeed_mmio_map(s, SYS_BUS_DEVICE(&s->sdmc), 0,
> > +                    sc->memmap[ASPEED_DEV_SDMC]);
> > +
> > +    /* RAM */
> > +    if (!aspeed_soc_dram_init(s, errp)) {
> > +        return;
> > +    }
> > +
> > +    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;
> > +        }
> > +        aspeed_mmio_map(s, 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));
> > +
> > +        object_property_set_link(OBJECT(&s->mii[i]), "nic",
> > +                                 OBJECT(&s->ftgmac100[i]),
> &error_abort);
> > +        if (!sysbus_realize(SYS_BUS_DEVICE(&s->mii[i]), errp)) {
> > +            return;
> > +        }
> > +
> > +        aspeed_mmio_map(s, SYS_BUS_DEVICE(&s->mii[i]), 0,
> > +                        sc->memmap[ASPEED_DEV_MII1 + i]);
> > +    }
> > +
> > +    /* Watch dog */
> > +    for (i = 0; i < sc->wdts_num; i++) {
> > +        AspeedWDTClass *awc = ASPEED_WDT_GET_CLASS(&s->wdt[i]);
> > +        hwaddr wdt_offset = sc->memmap[ASPEED_DEV_WDT] + i *
> > + awc->iosize;
> > +
> > +        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;
> > +        }
> > +        aspeed_mmio_map(s, SYS_BUS_DEVICE(&s->wdt[i]), 0,
> wdt_offset);
> > +    }
> > +
> > +    /* SLI */
> > +    if (!sysbus_realize(SYS_BUS_DEVICE(&s->sli), errp)) {
> > +        return;
> > +    }
> > +    aspeed_mmio_map(s, SYS_BUS_DEVICE(&s->sli), 0,
> > + sc->memmap[ASPEED_DEV_SLI]);
> > +
> > +    if (!sysbus_realize(SYS_BUS_DEVICE(&s->sliio), errp)) {
> > +        return;
> > +    }
> > +    aspeed_mmio_map(s, SYS_BUS_DEVICE(&s->sliio), 0,
> > +                    sc->memmap[ASPEED_DEV_SLIIO]);
> > +
> > +    create_unimplemented_device("ast2700.dpmcu", 0x11000000,
> 0x40000);
> > +    create_unimplemented_device("ast2700.iomem0", 0x12000000,
> 0x01000000);
> > +    create_unimplemented_device("ast2700.iomem1", 0x14000000,
> 0x01000000);
> > +    create_unimplemented_device("ast2700.ltpi", 0x30000000,
> 0x1000000);
> > +    create_unimplemented_device("ast2700.io", 0x0, 0x4000000); }
> > +
> > +static void aspeed_soc_ast2700_class_init(ObjectClass *oc, void
> > +*data) {
> > +    static const char * const valid_cpu_types[] = {
> > +        ARM_CPU_TYPE_NAME("cortex-a35"),
> > +        NULL
> > +    };
> > +    DeviceClass *dc = DEVICE_CLASS(oc);
> > +    AspeedSoCClass *sc = ASPEED_SOC_CLASS(oc);
> > +
> > +    dc->realize      = aspeed_soc_ast2700_realize;
> 
> 
> Please add :
> 
>      /* Reason: The Aspeed SoC can only be instantiated from a board */
>      dc->user_creatable = false;
> 
> 
Will add.
> Thanks,
> 
> C.
> 
> 
> > +
> > +    sc->name         = "ast2700-a0";
> > +    sc->valid_cpu_types = valid_cpu_types;
> > +    sc->silicon_rev  = AST2700_A0_SILICON_REV;
> > +    sc->sram_size    = 0x20000;
> > +    sc->spis_num     = 3;
> > +    sc->wdts_num     = 8;
> > +    sc->macs_num     = 1;
> > +    sc->uarts_num    = 13;
> > +    sc->num_cpus     = 4;
> > +    sc->uarts_base   = ASPEED_DEV_UART0;
> > +    sc->irqmap       = aspeed_soc_ast2700_irqmap;
> > +    sc->memmap       = aspeed_soc_ast2700_memmap;
> > +    sc->get_irq      = aspeed_soc_ast2700_get_irq;
> > +}
> > +
> > +static const TypeInfo aspeed_soc_ast27x0_types[] = {
> > +    {
> > +        .name           = TYPE_ASPEED27X0_SOC,
> > +        .parent         = TYPE_ASPEED_SOC,
> > +        .instance_size  = sizeof(Aspeed27x0SoCState),
> > +        .abstract       = true,
> > +    }, {
> > +        .name           = "ast2700-a0",
> > +        .parent         = TYPE_ASPEED27X0_SOC,
> > +        .instance_init  = aspeed_soc_ast2700_init,
> > +        .class_init     = aspeed_soc_ast2700_class_init,
> > +    },
> > +};
> > +
> > +DEFINE_TYPES(aspeed_soc_ast27x0_types)
> > diff --git a/hw/arm/meson.build b/hw/arm/meson.build index
> > 6808135c1f..1e3295a423 100644
> > --- a/hw/arm/meson.build
> > +++ b/hw/arm/meson.build
> > @@ -46,6 +46,7 @@ arm_ss.add(when: 'CONFIG_ASPEED_SOC', if_true:
> files(
> >     'aspeed_soc_common.c',
> >     'aspeed_ast2400.c',
> >     'aspeed_ast2600.c',
> > +  'aspeed_ast27x0.c',
> >     'aspeed_ast10x0.c',
> >     'aspeed_eeprom.c',
> >     'fby35.c'))
> > diff --git a/include/hw/arm/aspeed_soc.h b/include/hw/arm/aspeed_soc.h
> > index c60fac900a..9f177b6037 100644
> > --- a/include/hw/arm/aspeed_soc.h
> > +++ b/include/hw/arm/aspeed_soc.h
> > @@ -15,6 +15,7 @@
> >   #include "hw/cpu/a15mpcore.h"
> >   #include "hw/arm/armv7m.h"
> >   #include "hw/intc/aspeed_vic.h"
> > +#include "hw/intc/aspeed_intc.h"
> >   #include "hw/misc/aspeed_scu.h"
> >   #include "hw/adc/aspeed_adc.h"
> >   #include "hw/misc/aspeed_sdmc.h"
> > @@ -26,6 +27,7 @@
> >   #include "hw/ssi/aspeed_smc.h"
> >   #include "hw/misc/aspeed_hace.h"
> >   #include "hw/misc/aspeed_sbc.h"
> > +#include "hw/misc/aspeed_sli.h"
> >   #include "hw/watchdog/wdt_aspeed.h"
> >   #include "hw/net/ftgmac100.h"
> >   #include "target/arm/cpu.h"
> > @@ -41,8 +43,8 @@
> >
> >   #define ASPEED_SPIS_NUM  2
> >   #define ASPEED_EHCIS_NUM 2
> > -#define ASPEED_WDTS_NUM  4
> > -#define ASPEED_CPUS_NUM  2
> > +#define ASPEED_WDTS_NUM  8
> > +#define ASPEED_CPUS_NUM  4
> >   #define ASPEED_MACS_NUM  4
> >   #define ASPEED_UARTS_NUM 13
> >   #define ASPEED_JTAG_NUM  2
> > @@ -61,6 +63,7 @@ struct AspeedSoCState {
> >       AspeedI2CState i2c;
> >       AspeedI3CState i3c;
> >       AspeedSCUState scu;
> > +    AspeedSCUState scuio;
> >       AspeedHACEState hace;
> >       AspeedXDMAState xdma;
> >       AspeedADCState adc;
> > @@ -68,6 +71,8 @@ struct AspeedSoCState {
> >       AspeedSMCState spi[ASPEED_SPIS_NUM];
> >       EHCISysBusState ehci[ASPEED_EHCIS_NUM];
> >       AspeedSBCState sbc;
> > +    AspeedSLIState sli;
> > +    AspeedSLIState sliio;
> >       MemoryRegion secsram;
> >       UnimplementedDeviceState sbc_unimplemented;
> >       AspeedSDMCState sdmc;
> > @@ -117,6 +122,16 @@ struct Aspeed2600SoCState {
> >   #define TYPE_ASPEED2600_SOC "aspeed2600-soc"
> >   OBJECT_DECLARE_SIMPLE_TYPE(Aspeed2600SoCState,
> ASPEED2600_SOC)
> >
> > +struct Aspeed27x0SoCState {
> > +    AspeedSoCState parent;
> > +
> > +    ARMCPU cpu[ASPEED_CPUS_NUM];
> > +    AspeedINTCState intc;
> > +};
> > +
> > +#define TYPE_ASPEED27X0_SOC "aspeed27x0-soc"
> > +OBJECT_DECLARE_SIMPLE_TYPE(Aspeed27x0SoCState, ASPEED27X0_SOC)
> > +
> >   struct Aspeed10x0SoCState {
> >       AspeedSoCState parent;
> >
> > @@ -168,11 +183,13 @@ enum {
> >       ASPEED_DEV_UART13,
> >       ASPEED_DEV_VUART,
> >       ASPEED_DEV_FMC,
> > +    ASPEED_DEV_SPI0,
> >       ASPEED_DEV_SPI1,
> >       ASPEED_DEV_SPI2,
> >       ASPEED_DEV_EHCI1,
> >       ASPEED_DEV_EHCI2,
> >       ASPEED_DEV_VIC,
> > +    ASPEED_DEV_INTC,
> >       ASPEED_DEV_SDMC,
> >       ASPEED_DEV_SCU,
> >       ASPEED_DEV_ADC,
> > @@ -222,6 +239,11 @@ enum {
> >       ASPEED_DEV_JTAG1,
> >       ASPEED_DEV_FSI1,
> >       ASPEED_DEV_FSI2,
> > +    ASPEED_DEV_SCUIO,
> > +    ASPEED_DEV_SLI,
> > +    ASPEED_DEV_SLIIO,
> > +    ASPEED_GIC_DIST,
> > +    ASPEED_GIC_REDIST,
> >   };
> >
> >   qemu_irq aspeed_soc_get_irq(AspeedSoCState *s, int dev);


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