This patch adds new model for Axiado SoC AX3000 which supports
4 Cortex-A53 ARM64 CPUs
Arm Generic Interrupt Controller v3
4 Cadence UARTs
1 SDHCI controller with PHY
Signed-off-by: Kuan-Jui Chiu <kchiu@axiado.com>
---
hw/arm/Kconfig | 8 +
hw/arm/axiado-soc.c | 287 ++++++++++++++++++++++++++++++++++++
hw/arm/meson.build | 2 +
include/hw/arm/axiado-soc.h | 152 +++++++++++++++++++
4 files changed, 449 insertions(+)
create mode 100644 hw/arm/axiado-soc.c
create mode 100644 include/hw/arm/axiado-soc.h
diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig
index c66c452737..a91b81b298 100644
--- a/hw/arm/Kconfig
+++ b/hw/arm/Kconfig
@@ -699,3 +699,11 @@ config ARMSSE
select UNIMP
select SSE_COUNTER
select SSE_TIMER
+
+config AXIADO_SOC
+ bool
+ default y
+ depends on ARM
+ select ARM_GIC
+ select CADENCE # UART
+ select SDHCI
diff --git a/hw/arm/axiado-soc.c b/hw/arm/axiado-soc.c
new file mode 100644
index 0000000000..e23410c147
--- /dev/null
+++ b/hw/arm/axiado-soc.c
@@ -0,0 +1,287 @@
+/*
+ * Axiado SoC AX3000
+ *
+ * Author: Kuan-Jui Chiu <kchiu@axiado.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 or
+ * (at your option) version 3 of the License.
+ *
+ * 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 "system/address-spaces.h"
+#include "hw/arm/bsa.h"
+#include "hw/arm/axiado-soc.h"
+#include "system/system.h"
+#include "qobject/qlist.h"
+#include "qom/object.h"
+
+static uint64_t sdhci_phy_read(void *opaque, hwaddr offset, unsigned size)
+{
+ uint32_t val = 0x00;
+
+ switch (offset) {
+ case REG_ID:
+ val = 0x3dff6870;
+ break;
+ case REG_STATUS:
+ // Make DLL_RDY | CAL_DONE
+ val = (1u << 0) | (1u << 6);
+ break;
+ default:
+ break;
+ }
+
+ return val;
+}
+
+static void sdhci_phy_write(void *opaque, hwaddr offset, uint64_t val, unsigned size)
+{
+ /* TBD */
+}
+
+static const MemoryRegionOps sdhci_phy_ops = {
+ .read = sdhci_phy_read,
+ .write = sdhci_phy_write,
+ .endianness = DEVICE_LITTLE_ENDIAN,
+};
+
+static uint64_t timer_ctrl_read(void *opaque, hwaddr offset, unsigned size)
+{
+ return 0x0;
+}
+
+static void timer_ctrl_write(void *opaque, hwaddr offset, uint64_t val, unsigned size)
+{
+ /* TBD */
+}
+
+static const MemoryRegionOps timer_ctrl_ops = {
+ .read = timer_ctrl_read,
+ .write = timer_ctrl_write,
+ .endianness = DEVICE_LITTLE_ENDIAN,
+};
+
+static uint64_t pll_read(void *opaque, hwaddr offset, unsigned size)
+{
+ switch (offset) {
+ case CLKRST_CPU_PLL_POSTDIV_OFFSET:
+ return 0x20891b;
+ case CLKRST_CPU_PLL_STS_OFFSET:
+ return 0x01;
+ default:
+ return 0x00;
+ }
+}
+
+static void pll_write(void *opaque, hwaddr offset, uint64_t val, unsigned size)
+{
+ /* TBD */
+}
+
+static const MemoryRegionOps pll_ops = {
+ .read = pll_read,
+ .write = pll_write,
+ .endianness = DEVICE_LITTLE_ENDIAN,
+};
+
+static void ax3000_init(Object *obj)
+{
+ AxiadoSoCState *s = AXIADO_SOC(obj);
+ AxiadoSoCClass *sc = AXIADO_SOC_GET_CLASS(s);
+ int i;
+
+ for (i = 0; i < sc->num_cpus; i++) {
+ g_autofree char *name = g_strdup_printf("cpu%d", i);
+ object_initialize_child(obj, name, &s->cpu[i], ARM_CPU_TYPE_NAME("cortex-a53"));
+ }
+
+ object_initialize_child(obj, "gic", &s->gic, gicv3_class_name());
+
+ for (i = 0; i < AX3000_NUM_UARTS; i++) {
+ g_autofree char *name = g_strdup_printf("uart%d", i);
+ object_initialize_child(obj, name, &s->uart[i], TYPE_CADENCE_UART);
+ }
+
+ object_initialize_child(obj, "sdhci0", &s->sdhci0, TYPE_SYSBUS_SDHCI);
+}
+
+static void ax3000_realize(DeviceState *dev, Error **errp)
+{
+ AxiadoSoCState *s = AXIADO_SOC(dev);
+ AxiadoSoCClass *sc = AXIADO_SOC_GET_CLASS(s);
+ SysBusDevice *gicsbd = SYS_BUS_DEVICE(&s->gic);
+ DeviceState *gicdev = DEVICE(&s->gic);
+ QList *redist_region_count;
+ int i;
+
+ /* CPUs */
+ for (i = 0; i < sc->num_cpus; i++) {
+ object_property_set_int(OBJECT(&s->cpu[i]), "cntfrq", 8000000,
+ &error_abort);
+
+ if (object_property_find(OBJECT(&s->cpu[i]), "has_el3")) {
+ object_property_set_bool(OBJECT(&s->cpu[i]), "has_el3",
+ false, &error_abort);
+ }
+
+ if (!qdev_realize(DEVICE(&s->cpu[i]), NULL, errp)) {
+ return;
+ }
+ }
+
+ /* GIC */
+ qdev_prop_set_uint32(gicdev, "num-cpu", sc->num_cpus);
+ qdev_prop_set_uint32(gicdev, "num-irq",
+ AX3000_NUM_IRQS + GIC_INTERNAL);
+
+ redist_region_count = qlist_new();
+ qlist_append_int(redist_region_count, sc->num_cpus);
+ qdev_prop_set_array(gicdev, "redist-region-count", redist_region_count);
+
+ if (!sysbus_realize(gicsbd, errp)) {
+ return;
+ }
+
+ sysbus_mmio_map(gicsbd, 0, AX3000_GIC_DIST_BASE);
+ sysbus_mmio_map(gicsbd, 1, AX3000_GIC_REDIST_BASE);
+
+ /*
+ * 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 interrupt outputs to the CPU's inputs.
+ */
+ for (i = 0; i < sc->num_cpus; i++) {
+ DeviceState *cpudev = DEVICE(&s->cpu[i]);
+ int intidbase = AX3000_NUM_IRQS + i * GIC_INTERNAL;
+ qemu_irq irq;
+
+ /*
+ * Mapping from the output timer irq lines from the CPU to the
+ * GIC PPI inputs.
+ */
+ static const int timer_irqs[] = {
+ [GTIMER_PHYS] = ARCH_TIMER_NS_EL1_IRQ,
+ [GTIMER_VIRT] = ARCH_TIMER_VIRT_IRQ,
+ [GTIMER_HYP] = ARCH_TIMER_NS_EL2_IRQ,
+ [GTIMER_SEC] = ARCH_TIMER_S_EL1_IRQ
+ };
+
+ for (int j = 0; j < ARRAY_SIZE(timer_irqs); j++) {
+ irq = qdev_get_gpio_in(gicdev, intidbase + timer_irqs[j]);
+ qdev_connect_gpio_out(cpudev, j, irq);
+ }
+
+ irq = qdev_get_gpio_in(gicdev, intidbase + ARCH_GIC_MAINT_IRQ);
+ qdev_connect_gpio_out_named(cpudev, "gicv3-maintenance-interrupt",
+ 0, irq);
+
+ sysbus_connect_irq(gicsbd, i,
+ qdev_get_gpio_in(cpudev, ARM_CPU_IRQ));
+ sysbus_connect_irq(gicsbd, i + sc->num_cpus,
+ qdev_get_gpio_in(cpudev, ARM_CPU_FIQ));
+ sysbus_connect_irq(gicsbd, i + 2 * sc->num_cpus,
+ qdev_get_gpio_in(cpudev, ARM_CPU_VIRQ));
+ sysbus_connect_irq(gicsbd, i + 3 * sc->num_cpus,
+ qdev_get_gpio_in(cpudev, ARM_CPU_VFIQ));
+ }
+
+ /* DRAM */
+ for (i = 0; i < AX3000_NUM_BANKS; i++) {
+ struct {
+ hwaddr addr;
+ size_t size;
+ const char *name;
+ } dram_table[] = {
+ { AX3000_DRAM0_BASE, AX3000_DRAM0_SIZE, "dram0" },
+ { AX3000_DRAM1_BASE, AX3000_DRAM1_SIZE, "dram1" }
+ };
+
+ memory_region_init_ram(&s->dram[i], OBJECT(s), dram_table[i].name,
+ dram_table[i].size, &error_fatal);
+ memory_region_add_subregion(get_system_memory(), dram_table[i].addr,
+ &s->dram[i]);
+ }
+
+ /* UARTs */
+ for (i = 0; i < AX3000_NUM_UARTS; i++) {
+ struct {
+ hwaddr addr;
+ unsigned int irq;
+ } serial_table[] = {
+ { AX3000_UART0_BASE, AX3000_UART0_IRQ },
+ { AX3000_UART1_BASE, AX3000_UART1_IRQ },
+ { AX3000_UART2_BASE, AX3000_UART2_IRQ },
+ { AX3000_UART3_BASE, AX3000_UART3_IRQ }
+ };
+
+ qdev_prop_set_chr(DEVICE(&s->uart[i]), "chardev", serial_hd(i));
+ if (!sysbus_realize(SYS_BUS_DEVICE(&s->uart[i]), errp)) {
+ return;
+ }
+
+ sysbus_mmio_map(SYS_BUS_DEVICE(&s->uart[i]), 0, serial_table[i].addr);
+ sysbus_connect_irq(SYS_BUS_DEVICE(&s->uart[i]), 0,
+ qdev_get_gpio_in(gicdev, serial_table[i].irq));
+ }
+
+ /* Timer control*/
+ memory_region_init_io(&s->timer_ctrl, OBJECT(s), &timer_ctrl_ops, s,
+ "timer_ctrl", 32);
+ memory_region_add_subregion(get_system_memory(), AX3000_TIMER_CTRL,
+ &s->timer_ctrl);
+
+ /* PLL control */
+ memory_region_init_io(&s->pll_ctrl, OBJECT(s), &pll_ops, s, "pll_ctrl",
+ 32);
+ memory_region_add_subregion(get_system_memory(), AX3000_PLL_BASE,
+ &s->pll_ctrl);
+
+ /* SDHCI */
+ qdev_prop_set_uint64(DEVICE(&s->sdhci0), "capareg", 0x216737eed0b0);
+ qdev_prop_set_uint64(DEVICE(&s->sdhci0), "sd-spec-version", 3);
+
+ if (!sysbus_realize(SYS_BUS_DEVICE(&s->sdhci0), errp)) {
+ return;
+ }
+
+ sysbus_mmio_map(SYS_BUS_DEVICE(&s->sdhci0), 0, AX3000_SDHCI0_BASE);
+ sysbus_connect_irq(SYS_BUS_DEVICE(&s->sdhci0), 0,
+ qdev_get_gpio_in(gicdev, AX3000_SDHCI0_IRQ));
+
+ memory_region_init_io(&s->sdhci_phy, OBJECT(s), &sdhci_phy_ops, s,
+ "sdhci_phy", AX3000_SDHCI0_PHY_SIZE);
+ memory_region_add_subregion(get_system_memory(), AX3000_SDHCI0_PHY_BASE,
+ &s->sdhci_phy);
+}
+
+static void ax3000_class_init(ObjectClass *oc, const void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(oc);
+ AxiadoSoCClass *sc = AXIADO_SOC_CLASS(oc);
+
+ dc->desc = "Axiado SoC AX3000";
+ dc->realize = ax3000_realize;
+ sc->num_cpus = AX3000_NUM_CPUS;
+}
+
+static const TypeInfo axiado_soc_types[] = {
+ {
+ .name = TYPE_AXIADO_SOC,
+ .parent = TYPE_SYS_BUS_DEVICE,
+ .instance_size = sizeof(AxiadoSoCState),
+ .instance_init = ax3000_init,
+ .class_init = ax3000_class_init,
+ }
+};
+
+DEFINE_TYPES(axiado_soc_types)
diff --git a/hw/arm/meson.build b/hw/arm/meson.build
index 47cdc51d13..c3c96c0a70 100644
--- a/hw/arm/meson.build
+++ b/hw/arm/meson.build
@@ -105,6 +105,8 @@ arm_common_ss.add(when: 'CONFIG_STRONGARM', if_true: files('strongarm.c'))
arm_common_ss.add(when: 'CONFIG_SX1', if_true: files('omap_sx1.c'))
arm_common_ss.add(when: 'CONFIG_VERSATILE', if_true: files('versatilepb.c'))
arm_common_ss.add(when: 'CONFIG_VEXPRESS', if_true: files('vexpress.c'))
+arm_common_ss.add(when: ['CONFIG_AXIADO_SOC', 'TARGET_AARCH64'], if_true: files(
+ 'axiado-soc.c'))
arm_common_ss.add(files('boot.c'))
diff --git a/include/hw/arm/axiado-soc.h b/include/hw/arm/axiado-soc.h
new file mode 100644
index 0000000000..2483bdd8c2
--- /dev/null
+++ b/include/hw/arm/axiado-soc.h
@@ -0,0 +1,152 @@
+/*
+ * Axiado SoC AX3000
+ *
+ * Author: Kuan-Jui Chiu <kchiu@axiado.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 or
+ * (at your option) version 3 of the License.
+ *
+ * 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/>.
+ */
+
+#ifndef AXIADO_AX3000_H
+#define AXIADO_AX3000_H
+
+#include "cpu.h"
+#include "hw/intc/arm_gicv3_common.h"
+#include "hw/char/cadence_uart.h"
+#include "hw/sd/sdhci.h"
+#include "hw/core/sysbus.h"
+#include "qemu/units.h"
+
+#define TYPE_AXIADO_SOC "ax3000"
+OBJECT_DECLARE_TYPE(AxiadoSoCState, AxiadoSoCClass, AXIADO_SOC)
+
+#define AX3000_RAM_START 0x3C000000
+#define AX3000_RAM_SIZE_MAX (16 * GiB)
+
+#define AX3000_DRAM0_BASE AX3000_RAM_START
+#define AX3000_DRAM0_SIZE (1088 * MiB)
+#define AX3000_DRAM1_BASE 0x400000000
+#define AX3000_DRAM1_SIZE (2 * GiB)
+
+#define AX3000_GIC_DIST_BASE 0x80300000
+#define AX3000_GIC_DIST_SIZE (64 * KiB)
+#define AX3000_GIC_REDIST_BASE 0x80380000
+#define AX3000_GIC_REDIST_SIZE (512 * KiB)
+
+#define AX3000_UART0_BASE 0x80520000
+#define AX3000_UART0_SIZE (256)
+#define AX3000_UART1_BASE 0x805a0000
+#define AX3000_UART1_SIZE (256)
+#define AX3000_UART2_BASE 0x80620000
+#define AX3000_UART2_SIZE (256)
+#define AX3000_UART3_BASE 0x80520800
+#define AX3000_UART3_SIZE (256)
+
+#define AX3000_SDHCI0_BASE 0x86000000
+#define AX3000_SDHCI0_PHY_BASE 0x80801C00
+#define AX3000_SDHCI0_PHY_SIZE (256)
+
+#define AX3000_GPIO0_BASE 0x80500000
+#define AX3000_GPIO0_SIZE (1024)
+#define AX3000_GPIO1_BASE 0x80580000
+#define AX3000_GPIO1_SIZE (1024)
+#define AX3000_GPIO2_BASE 0x80600000
+#define AX3000_GPIO2_SIZE (1024)
+#define AX3000_GPIO3_BASE 0x80680000
+#define AX3000_GPIO3_SIZE (1024)
+#define AX3000_GPIO4_BASE 0x80700000
+#define AX3000_GPIO4_SIZE (1024)
+#define AX3000_GPIO5_BASE 0x80780000
+#define AX3000_GPIO5_SIZE (1024)
+#define AX3000_GPIO6_BASE 0x80800000
+#define AX3000_GPIO6_SIZE (1024)
+#define AX3000_GPIO7_BASE 0x80880000
+#define AX3000_GPIO7_SIZE (1024)
+
+#define AX3000_TIMER_CTRL 0x8A020000
+#define AX3000_PLL_BASE 0x80000000
+#define CLKRST_CPU_PLL_POSTDIV_OFFSET 0x0C
+#define CLKRST_CPU_PLL_STS_OFFSET 0x14
+
+
+enum Ax3000Configuration {
+ AX3000_NUM_CPUS = 4,
+ AX3000_NUM_IRQS = 224,
+ AX3000_NUM_BANKS = 2,
+ AX3000_NUM_UARTS = 4,
+ AX3000_NUM_GPIOS = 8,
+};
+
+typedef struct AxiadoSoCState {
+ SysBusDevice parent;
+
+ ARMCPU cpu[AX3000_NUM_CPUS];
+ GICv3State gic;
+ MemoryRegion dram[AX3000_NUM_BANKS];
+ MemoryRegion timer_ctrl;
+ MemoryRegion pll_ctrl;
+ CadenceUARTState uart[AX3000_NUM_UARTS];
+ SDHCIState sdhci0;
+ MemoryRegion sdhci_phy;
+} AxiadoSoCState;
+
+typedef struct AxiadoSoCClass {
+ SysBusDeviceClass parent;
+
+ uint32_t num_cpus;
+} AxiadoSoCClass;
+
+enum Ax3000MemoryRegions {
+ AX3000_GIC_DIST,
+ AX3000_GIC_REDIST,
+ AX3000_DRAM0,
+ AX3000_DRAM1,
+ AX3000_UART0,
+ AX3000_UART1,
+ AX3000_UART2,
+ AX3000_UART3,
+ AX3000_SDHCI0,
+ AX3000_GPIO0,
+ AX3000_GPIO1,
+ AX3000_GPIO2,
+ AX3000_GPIO3,
+ AX3000_GPIO4,
+ AX3000_GPIO5,
+ AX3000_GPIO6,
+ AX3000_GPIO7,
+};
+
+enum Ax3000Irqs {
+ AX3000_UART0_IRQ = 112,
+ AX3000_UART1_IRQ = 113,
+ AX3000_UART2_IRQ = 114,
+ AX3000_UART3_IRQ = 170,
+
+ AX3000_SDHCI0_IRQ = 123,
+
+ AX3000_GPIO0_IRQ = 183,
+ AX3000_GPIO1_IRQ = 184,
+ AX3000_GPIO2_IRQ = 185,
+ AX3000_GPIO3_IRQ = 186,
+ AX3000_GPIO4_IRQ = 187,
+ AX3000_GPIO5_IRQ = 188,
+ AX3000_GPIO6_IRQ = 189,
+ AX3000_GPIO7_IRQ = 190,
+};
+
+enum SDHCI_PHY_REG {
+ REG_ID = 0x00, // ID
+ REG_STATUS = 0x50, // READY/LOCK/CAL_DONE bits
+};
+
+#endif /* AXIADO_AX3000_H */
--
2.34.1On Fri, 6 Mar 2026 at 12:21, Kuan-Jui Chiu <kchiu@axiado.com> wrote:
>
> This patch adds new model for Axiado SoC AX3000 which supports
> 4 Cortex-A53 ARM64 CPUs
> Arm Generic Interrupt Controller v3
> 4 Cadence UARTs
> 1 SDHCI controller with PHY
>
> Signed-off-by: Kuan-Jui Chiu <kchiu@axiado.com>
Hi; thanks for this patch; my review comments are below. I have
some comments about structure but nothing too major I think.
> ---
> hw/arm/Kconfig | 8 +
> hw/arm/axiado-soc.c | 287 ++++++++++++++++++++++++++++++++++++
> hw/arm/meson.build | 2 +
> include/hw/arm/axiado-soc.h | 152 +++++++++++++++++++
> 4 files changed, 449 insertions(+)
> create mode 100644 hw/arm/axiado-soc.c
> create mode 100644 include/hw/arm/axiado-soc.h
>
> diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig
> index c66c452737..a91b81b298 100644
> --- a/hw/arm/Kconfig
> +++ b/hw/arm/Kconfig
> @@ -699,3 +699,11 @@ config ARMSSE
> select UNIMP
> select SSE_COUNTER
> select SSE_TIMER
> +
> +config AXIADO_SOC
> + bool
> + default y
> + depends on ARM
> + select ARM_GIC
> + select CADENCE # UART
> + select SDHCI
> diff --git a/hw/arm/axiado-soc.c b/hw/arm/axiado-soc.c
> new file mode 100644
> index 0000000000..e23410c147
> --- /dev/null
> +++ b/hw/arm/axiado-soc.c
> @@ -0,0 +1,287 @@
> +/*
> + * Axiado SoC AX3000
> + *
> + * Author: Kuan-Jui Chiu <kchiu@axiado.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 or
> + * (at your option) version 3 of the License.
> + *
> + * 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/>.
If you run scripts/checkpatch.pl on your patches, it should
warn you that we prefer to use SPDX identifiers rather than
the traditional GPL license boilerplate.
> + */
Is there a data sheet for this SoC? The top level comment is
a good place to put the URL for it.
Without a datasheet, it's trickier to review.
> +
> +#include "qemu/osdep.h"
> +#include "system/address-spaces.h"
> +#include "hw/arm/bsa.h"
> +#include "hw/arm/axiado-soc.h"
> +#include "system/system.h"
> +#include "qobject/qlist.h"
> +#include "qom/object.h"
> +
> +static uint64_t sdhci_phy_read(void *opaque, hwaddr offset, unsigned size)
> +{
> + uint32_t val = 0x00;
> +
> + switch (offset) {
> + case REG_ID:
> + val = 0x3dff6870;
> + break;
> + case REG_STATUS:
> + // Make DLL_RDY | CAL_DONE
> + val = (1u << 0) | (1u << 6);
> + break;
> + default:
> + break;
> + }
> +
> + return val;
> +}
> +
> +static void sdhci_phy_write(void *opaque, hwaddr offset, uint64_t val, unsigned size)
> +{
> + /* TBD */
> +}
> +
> +static const MemoryRegionOps sdhci_phy_ops = {
> + .read = sdhci_phy_read,
> + .write = sdhci_phy_write,
> + .endianness = DEVICE_LITTLE_ENDIAN,
> +};
Please put models of sub-devices of the SoC into their own
source files in the appropriate subdirectory of the hw/ directory.
> +
> +static uint64_t timer_ctrl_read(void *opaque, hwaddr offset, unsigned size)
> +{
> + return 0x0;
> +}
> +
> +static void timer_ctrl_write(void *opaque, hwaddr offset, uint64_t val, unsigned size)
> +{
> + /* TBD */
> +}
> +
> +static const MemoryRegionOps timer_ctrl_ops = {
> + .read = timer_ctrl_read,
> + .write = timer_ctrl_write,
> + .endianness = DEVICE_LITTLE_ENDIAN,
> +};
If you can get by with absolutely no implementation of a device,
consider using TYPE_UNIMPLEMENTED_DEVICE (from hw/misc/unimp.c),
which will give you a "reads as zero, writes ignored" block which
also logs when the guest touches it. (You can either create the
device directly, or use the create_unimplemented_device() helper
function.)
> +
> +static uint64_t pll_read(void *opaque, hwaddr offset, unsigned size)
> +{
> + switch (offset) {
> + case CLKRST_CPU_PLL_POSTDIV_OFFSET:
> + return 0x20891b;
> + case CLKRST_CPU_PLL_STS_OFFSET:
> + return 0x01;
> + default:
> + return 0x00;
> + }
> +}
> +
> +static void pll_write(void *opaque, hwaddr offset, uint64_t val, unsigned size)
> +{
> + /* TBD */
> +}
> +
> +static const MemoryRegionOps pll_ops = {
> + .read = pll_read,
> + .write = pll_write,
> + .endianness = DEVICE_LITTLE_ENDIAN,
> +};
> +
> +static void ax3000_init(Object *obj)
> +{
> + AxiadoSoCState *s = AXIADO_SOC(obj);
> + AxiadoSoCClass *sc = AXIADO_SOC_GET_CLASS(s);
> + int i;
> +
> + for (i = 0; i < sc->num_cpus; i++) {
> + g_autofree char *name = g_strdup_printf("cpu%d", i);
> + object_initialize_child(obj, name, &s->cpu[i], ARM_CPU_TYPE_NAME("cortex-a53"));
> + }
> +
> + object_initialize_child(obj, "gic", &s->gic, gicv3_class_name());
> +
> + for (i = 0; i < AX3000_NUM_UARTS; i++) {
> + g_autofree char *name = g_strdup_printf("uart%d", i);
> + object_initialize_child(obj, name, &s->uart[i], TYPE_CADENCE_UART);
> + }
> +
> + object_initialize_child(obj, "sdhci0", &s->sdhci0, TYPE_SYSBUS_SDHCI);
> +}
> +
> +static void ax3000_realize(DeviceState *dev, Error **errp)
> +{
> + AxiadoSoCState *s = AXIADO_SOC(dev);
> + AxiadoSoCClass *sc = AXIADO_SOC_GET_CLASS(s);
> + SysBusDevice *gicsbd = SYS_BUS_DEVICE(&s->gic);
> + DeviceState *gicdev = DEVICE(&s->gic);
> + QList *redist_region_count;
> + int i;
> +
> + /* CPUs */
> + for (i = 0; i < sc->num_cpus; i++) {
> + object_property_set_int(OBJECT(&s->cpu[i]), "cntfrq", 8000000,
> + &error_abort);
> +
> + if (object_property_find(OBJECT(&s->cpu[i]), "has_el3")) {
> + object_property_set_bool(OBJECT(&s->cpu[i]), "has_el3",
> + false, &error_abort);
Does your SoC really not implement EL3 ?
> + }
> +
> + if (!qdev_realize(DEVICE(&s->cpu[i]), NULL, errp)) {
> + return;
> + }
> + }
> +
> + /* GIC */
> + qdev_prop_set_uint32(gicdev, "num-cpu", sc->num_cpus);
> + qdev_prop_set_uint32(gicdev, "num-irq",
> + AX3000_NUM_IRQS + GIC_INTERNAL);
> +
> + redist_region_count = qlist_new();
> + qlist_append_int(redist_region_count, sc->num_cpus);
> + qdev_prop_set_array(gicdev, "redist-region-count", redist_region_count);
> +
> + if (!sysbus_realize(gicsbd, errp)) {
> + return;
> + }
> +
> + sysbus_mmio_map(gicsbd, 0, AX3000_GIC_DIST_BASE);
> + sysbus_mmio_map(gicsbd, 1, AX3000_GIC_REDIST_BASE);
> +
> + /*
> + * 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 interrupt outputs to the CPU's inputs.
> + */
> + for (i = 0; i < sc->num_cpus; i++) {
> + DeviceState *cpudev = DEVICE(&s->cpu[i]);
> + int intidbase = AX3000_NUM_IRQS + i * GIC_INTERNAL;
> + qemu_irq irq;
> +
> + /*
> + * Mapping from the output timer irq lines from the CPU to the
> + * GIC PPI inputs.
> + */
> + static const int timer_irqs[] = {
> + [GTIMER_PHYS] = ARCH_TIMER_NS_EL1_IRQ,
> + [GTIMER_VIRT] = ARCH_TIMER_VIRT_IRQ,
> + [GTIMER_HYP] = ARCH_TIMER_NS_EL2_IRQ,
> + [GTIMER_SEC] = ARCH_TIMER_S_EL1_IRQ
> + };
> +
> + for (int j = 0; j < ARRAY_SIZE(timer_irqs); j++) {
> + irq = qdev_get_gpio_in(gicdev, intidbase + timer_irqs[j]);
> + qdev_connect_gpio_out(cpudev, j, irq);
> + }
> +
> + irq = qdev_get_gpio_in(gicdev, intidbase + ARCH_GIC_MAINT_IRQ);
> + qdev_connect_gpio_out_named(cpudev, "gicv3-maintenance-interrupt",
> + 0, irq);
> +
> + sysbus_connect_irq(gicsbd, i,
> + qdev_get_gpio_in(cpudev, ARM_CPU_IRQ));
> + sysbus_connect_irq(gicsbd, i + sc->num_cpus,
> + qdev_get_gpio_in(cpudev, ARM_CPU_FIQ));
> + sysbus_connect_irq(gicsbd, i + 2 * sc->num_cpus,
> + qdev_get_gpio_in(cpudev, ARM_CPU_VIRQ));
> + sysbus_connect_irq(gicsbd, i + 3 * sc->num_cpus,
> + qdev_get_gpio_in(cpudev, ARM_CPU_VFIQ));
> + }
> +
> + /* DRAM */
> + for (i = 0; i < AX3000_NUM_BANKS; i++) {
> + struct {
> + hwaddr addr;
> + size_t size;
> + const char *name;
> + } dram_table[] = {
> + { AX3000_DRAM0_BASE, AX3000_DRAM0_SIZE, "dram0" },
> + { AX3000_DRAM1_BASE, AX3000_DRAM1_SIZE, "dram1" }
> + };
> +
> + memory_region_init_ram(&s->dram[i], OBJECT(s), dram_table[i].name,
> + dram_table[i].size, &error_fatal);
> + memory_region_add_subregion(get_system_memory(), dram_table[i].addr,
> + &s->dram[i]);
> + }
> +
> + /* UARTs */
> + for (i = 0; i < AX3000_NUM_UARTS; i++) {
> + struct {
> + hwaddr addr;
> + unsigned int irq;
> + } serial_table[] = {
> + { AX3000_UART0_BASE, AX3000_UART0_IRQ },
> + { AX3000_UART1_BASE, AX3000_UART1_IRQ },
> + { AX3000_UART2_BASE, AX3000_UART2_IRQ },
> + { AX3000_UART3_BASE, AX3000_UART3_IRQ }
> + };
> +
> + qdev_prop_set_chr(DEVICE(&s->uart[i]), "chardev", serial_hd(i));
> + if (!sysbus_realize(SYS_BUS_DEVICE(&s->uart[i]), errp)) {
> + return;
> + }
> +
> + sysbus_mmio_map(SYS_BUS_DEVICE(&s->uart[i]), 0, serial_table[i].addr);
> + sysbus_connect_irq(SYS_BUS_DEVICE(&s->uart[i]), 0,
> + qdev_get_gpio_in(gicdev, serial_table[i].irq));
> + }
> +
> + /* Timer control*/
> + memory_region_init_io(&s->timer_ctrl, OBJECT(s), &timer_ctrl_ops, s,
> + "timer_ctrl", 32);
> + memory_region_add_subregion(get_system_memory(), AX3000_TIMER_CTRL,
> + &s->timer_ctrl);
> +
> + /* PLL control */
> + memory_region_init_io(&s->pll_ctrl, OBJECT(s), &pll_ops, s, "pll_ctrl",
> + 32);
> + memory_region_add_subregion(get_system_memory(), AX3000_PLL_BASE,
> + &s->pll_ctrl);
> +
> + /* SDHCI */
> + qdev_prop_set_uint64(DEVICE(&s->sdhci0), "capareg", 0x216737eed0b0);
> + qdev_prop_set_uint64(DEVICE(&s->sdhci0), "sd-spec-version", 3);
> +
> + if (!sysbus_realize(SYS_BUS_DEVICE(&s->sdhci0), errp)) {
> + return;
> + }
> +
> + sysbus_mmio_map(SYS_BUS_DEVICE(&s->sdhci0), 0, AX3000_SDHCI0_BASE);
> + sysbus_connect_irq(SYS_BUS_DEVICE(&s->sdhci0), 0,
> + qdev_get_gpio_in(gicdev, AX3000_SDHCI0_IRQ));
> +
> + memory_region_init_io(&s->sdhci_phy, OBJECT(s), &sdhci_phy_ops, s,
> + "sdhci_phy", AX3000_SDHCI0_PHY_SIZE);
> + memory_region_add_subregion(get_system_memory(), AX3000_SDHCI0_PHY_BASE,
> + &s->sdhci_phy);
> +}
> +
> +static void ax3000_class_init(ObjectClass *oc, const void *data)
> +{
> + DeviceClass *dc = DEVICE_CLASS(oc);
> + AxiadoSoCClass *sc = AXIADO_SOC_CLASS(oc);
> +
> + dc->desc = "Axiado SoC AX3000";
> + dc->realize = ax3000_realize;
> + sc->num_cpus = AX3000_NUM_CPUS;
> +}
> +
> +static const TypeInfo axiado_soc_types[] = {
> + {
> + .name = TYPE_AXIADO_SOC,
> + .parent = TYPE_SYS_BUS_DEVICE,
> + .instance_size = sizeof(AxiadoSoCState),
> + .instance_init = ax3000_init,
> + .class_init = ax3000_class_init,
> + }
> +};
> +
> +DEFINE_TYPES(axiado_soc_types)
> diff --git a/hw/arm/meson.build b/hw/arm/meson.build
> index 47cdc51d13..c3c96c0a70 100644
> --- a/hw/arm/meson.build
> +++ b/hw/arm/meson.build
> @@ -105,6 +105,8 @@ arm_common_ss.add(when: 'CONFIG_STRONGARM', if_true: files('strongarm.c'))
> arm_common_ss.add(when: 'CONFIG_SX1', if_true: files('omap_sx1.c'))
> arm_common_ss.add(when: 'CONFIG_VERSATILE', if_true: files('versatilepb.c'))
> arm_common_ss.add(when: 'CONFIG_VEXPRESS', if_true: files('vexpress.c'))
> +arm_common_ss.add(when: ['CONFIG_AXIADO_SOC', 'TARGET_AARCH64'], if_true: files(
> + 'axiado-soc.c'))
>
> arm_common_ss.add(files('boot.c'))
>
> diff --git a/include/hw/arm/axiado-soc.h b/include/hw/arm/axiado-soc.h
> new file mode 100644
> index 0000000000..2483bdd8c2
> --- /dev/null
> +++ b/include/hw/arm/axiado-soc.h
> @@ -0,0 +1,152 @@
> +/*
> + * Axiado SoC AX3000
> + *
> + * Author: Kuan-Jui Chiu <kchiu@axiado.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 or
> + * (at your option) version 3 of the License.
> + *
> + * 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/>.
> + */
> +
> +#ifndef AXIADO_AX3000_H
> +#define AXIADO_AX3000_H
> +
> +#include "cpu.h"
> +#include "hw/intc/arm_gicv3_common.h"
> +#include "hw/char/cadence_uart.h"
> +#include "hw/sd/sdhci.h"
> +#include "hw/core/sysbus.h"
> +#include "qemu/units.h"
> +
> +#define TYPE_AXIADO_SOC "ax3000"
> +OBJECT_DECLARE_TYPE(AxiadoSoCState, AxiadoSoCClass, AXIADO_SOC)
> +
> +#define AX3000_RAM_START 0x3C000000
> +#define AX3000_RAM_SIZE_MAX (16 * GiB)
> +
> +#define AX3000_DRAM0_BASE AX3000_RAM_START
> +#define AX3000_DRAM0_SIZE (1088 * MiB)
> +#define AX3000_DRAM1_BASE 0x400000000
> +#define AX3000_DRAM1_SIZE (2 * GiB)
> +
> +#define AX3000_GIC_DIST_BASE 0x80300000
> +#define AX3000_GIC_DIST_SIZE (64 * KiB)
> +#define AX3000_GIC_REDIST_BASE 0x80380000
> +#define AX3000_GIC_REDIST_SIZE (512 * KiB)
> +
> +#define AX3000_UART0_BASE 0x80520000
> +#define AX3000_UART0_SIZE (256)
> +#define AX3000_UART1_BASE 0x805a0000
> +#define AX3000_UART1_SIZE (256)
> +#define AX3000_UART2_BASE 0x80620000
> +#define AX3000_UART2_SIZE (256)
> +#define AX3000_UART3_BASE 0x80520800
> +#define AX3000_UART3_SIZE (256)
> +
> +#define AX3000_SDHCI0_BASE 0x86000000
> +#define AX3000_SDHCI0_PHY_BASE 0x80801C00
> +#define AX3000_SDHCI0_PHY_SIZE (256)
> +
> +#define AX3000_GPIO0_BASE 0x80500000
> +#define AX3000_GPIO0_SIZE (1024)
> +#define AX3000_GPIO1_BASE 0x80580000
> +#define AX3000_GPIO1_SIZE (1024)
> +#define AX3000_GPIO2_BASE 0x80600000
> +#define AX3000_GPIO2_SIZE (1024)
> +#define AX3000_GPIO3_BASE 0x80680000
> +#define AX3000_GPIO3_SIZE (1024)
> +#define AX3000_GPIO4_BASE 0x80700000
> +#define AX3000_GPIO4_SIZE (1024)
> +#define AX3000_GPIO5_BASE 0x80780000
> +#define AX3000_GPIO5_SIZE (1024)
> +#define AX3000_GPIO6_BASE 0x80800000
> +#define AX3000_GPIO6_SIZE (1024)
> +#define AX3000_GPIO7_BASE 0x80880000
> +#define AX3000_GPIO7_SIZE (1024)
> +
> +#define AX3000_TIMER_CTRL 0x8A020000
> +#define AX3000_PLL_BASE 0x80000000
> +#define CLKRST_CPU_PLL_POSTDIV_OFFSET 0x0C
> +#define CLKRST_CPU_PLL_STS_OFFSET 0x14
> +
> +
> +enum Ax3000Configuration {
> + AX3000_NUM_CPUS = 4,
> + AX3000_NUM_IRQS = 224,
> + AX3000_NUM_BANKS = 2,
> + AX3000_NUM_UARTS = 4,
> + AX3000_NUM_GPIOS = 8,
> +};
> +
> +typedef struct AxiadoSoCState {
> + SysBusDevice parent;
> +
> + ARMCPU cpu[AX3000_NUM_CPUS];
> + GICv3State gic;
> + MemoryRegion dram[AX3000_NUM_BANKS];
> + MemoryRegion timer_ctrl;
> + MemoryRegion pll_ctrl;
> + CadenceUARTState uart[AX3000_NUM_UARTS];
> + SDHCIState sdhci0;
> + MemoryRegion sdhci_phy;
> +} AxiadoSoCState;
> +
> +typedef struct AxiadoSoCClass {
> + SysBusDeviceClass parent;
> +
> + uint32_t num_cpus;
> +} AxiadoSoCClass;
> +
> +enum Ax3000MemoryRegions {
> + AX3000_GIC_DIST,
> + AX3000_GIC_REDIST,
> + AX3000_DRAM0,
> + AX3000_DRAM1,
> + AX3000_UART0,
> + AX3000_UART1,
> + AX3000_UART2,
> + AX3000_UART3,
> + AX3000_SDHCI0,
> + AX3000_GPIO0,
> + AX3000_GPIO1,
> + AX3000_GPIO2,
> + AX3000_GPIO3,
> + AX3000_GPIO4,
> + AX3000_GPIO5,
> + AX3000_GPIO6,
> + AX3000_GPIO7,
> +};
> +
> +enum Ax3000Irqs {
> + AX3000_UART0_IRQ = 112,
> + AX3000_UART1_IRQ = 113,
> + AX3000_UART2_IRQ = 114,
> + AX3000_UART3_IRQ = 170,
> +
> + AX3000_SDHCI0_IRQ = 123,
> +
> + AX3000_GPIO0_IRQ = 183,
> + AX3000_GPIO1_IRQ = 184,
> + AX3000_GPIO2_IRQ = 185,
> + AX3000_GPIO3_IRQ = 186,
> + AX3000_GPIO4_IRQ = 187,
> + AX3000_GPIO5_IRQ = 188,
> + AX3000_GPIO6_IRQ = 189,
> + AX3000_GPIO7_IRQ = 190,
> +};
> +
> +enum SDHCI_PHY_REG {
> + REG_ID = 0x00, // ID
> + REG_STATUS = 0x50, // READY/LOCK/CAL_DONE bits
Don't use C++ style // comments, please. checkpatch will warn
about that too, I think.
> +};
> +
> +#endif /* AXIADO_AX3000_H */
> --
> 2.34.1
thanks
-- PMM
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