---
hw/misc/aspeed_i3c.c | 381 +++++++++++++++++++++++++++++++++++
hw/misc/meson.build | 1 +
hw/misc/trace-events | 6 +
include/hw/misc/aspeed_i3c.h | 48 +++++
4 files changed, 436 insertions(+)
create mode 100644 hw/misc/aspeed_i3c.c
create mode 100644 include/hw/misc/aspeed_i3c.h
diff --git a/hw/misc/aspeed_i3c.c b/hw/misc/aspeed_i3c.c
new file mode 100644
index 0000000000..43771d768a
--- /dev/null
+++ b/hw/misc/aspeed_i3c.c
@@ -0,0 +1,381 @@
+/*
+ * ASPEED I3C Controller
+ *
+ * Copyright (C) 2021 ASPEED Technology Inc.
+ *
+ * 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 "qemu/log.h"
+#include "qemu/error-report.h"
+#include "hw/misc/aspeed_i3c.h"
+#include "hw/registerfields.h"
+#include "hw/qdev-properties.h"
+#include "qapi/error.h"
+#include "migration/vmstate.h"
+#include "trace.h"
+
+/* I3C Controller Registers */
+REG32(I3C1_REG0, 0x10)
+REG32(I3C1_REG1, 0x14)
+ FIELD(I3C1_REG1, I2C_MODE, 0, 1)
+ FIELD(I3C1_REG1, SA_EN, 15, 1)
+REG32(I3C2_REG0, 0x20)
+REG32(I3C2_REG1, 0x24)
+ FIELD(I3C2_REG1, I2C_MODE, 0, 1)
+ FIELD(I3C2_REG1, SA_EN, 15, 1)
+REG32(I3C3_REG0, 0x30)
+REG32(I3C3_REG1, 0x34)
+ FIELD(I3C3_REG1, I2C_MODE, 0, 1)
+ FIELD(I3C3_REG1, SA_EN, 15, 1)
+REG32(I3C4_REG0, 0x40)
+REG32(I3C4_REG1, 0x44)
+ FIELD(I3C4_REG1, I2C_MODE, 0, 1)
+ FIELD(I3C4_REG1, SA_EN, 15, 1)
+REG32(I3C5_REG0, 0x50)
+REG32(I3C5_REG1, 0x54)
+ FIELD(I3C5_REG1, I2C_MODE, 0, 1)
+ FIELD(I3C5_REG1, SA_EN, 15, 1)
+REG32(I3C6_REG0, 0x60)
+REG32(I3C6_REG1, 0x64)
+ FIELD(I3C6_REG1, I2C_MODE, 0, 1)
+ FIELD(I3C6_REG1, SA_EN, 15, 1)
+
+/* I3C Device Registers */
+REG32(DEVICE_CTRL, 0x00)
+REG32(DEVICE_ADDR, 0x04)
+REG32(HW_CAPABILITY, 0x08)
+REG32(COMMAND_QUEUE_PORT, 0x0c)
+REG32(RESPONSE_QUEUE_PORT, 0x10)
+REG32(RX_TX_DATA_PORT, 0x14)
+REG32(IBI_QUEUE_STATUS, 0x18)
+REG32(IBI_QUEUE_DATA, 0x18)
+REG32(QUEUE_THLD_CTRL, 0x1c)
+REG32(DATA_BUFFER_THLD_CTRL, 0x20)
+REG32(IBI_QUEUE_CTRL, 0x24)
+REG32(IBI_MR_REQ_REJECT, 0x2c)
+REG32(IBI_SIR_REQ_REJECT, 0x30)
+REG32(RESET_CTRL, 0x34)
+REG32(SLV_EVENT_CTRL, 0x38)
+REG32(INTR_STATUS, 0x3c)
+REG32(INTR_STATUS_EN, 0x40)
+REG32(INTR_SIGNAL_EN, 0x44)
+REG32(INTR_FORCE, 0x48)
+REG32(QUEUE_STATUS_LEVEL, 0x4c)
+REG32(DATA_BUFFER_STATUS_LEVEL, 0x50)
+REG32(PRESENT_STATE, 0x54)
+REG32(CCC_DEVICE_STATUS, 0x58)
+REG32(DEVICE_ADDR_TABLE_POINTER, 0x5c)
+ FIELD(DEVICE_ADDR_TABLE_POINTER, DEPTH, 16, 16)
+ FIELD(DEVICE_ADDR_TABLE_POINTER, ADDR, 0, 16)
+REG32(DEV_CHAR_TABLE_POINTER, 0x60)
+REG32(VENDOR_SPECIFIC_REG_POINTER, 0x6c)
+REG32(SLV_MIPI_PID_VALUE, 0x70)
+REG32(SLV_PID_VALUE, 0x74)
+REG32(SLV_CHAR_CTRL, 0x78)
+REG32(SLV_MAX_LEN, 0x7c)
+REG32(MAX_READ_TURNAROUND, 0x80)
+REG32(MAX_DATA_SPEED, 0x84)
+REG32(SLV_DEBUG_STATUS, 0x88)
+REG32(SLV_INTR_REQ, 0x8c)
+REG32(DEVICE_CTRL_EXTENDED, 0xb0)
+REG32(SCL_I3C_OD_TIMING, 0xb4)
+REG32(SCL_I3C_PP_TIMING, 0xb8)
+REG32(SCL_I2C_FM_TIMING, 0xbc)
+REG32(SCL_I2C_FMP_TIMING, 0xc0)
+REG32(SCL_EXT_LCNT_TIMING, 0xc8)
+REG32(SCL_EXT_TERMN_LCNT_TIMING, 0xcc)
+REG32(BUS_FREE_TIMING, 0xd4)
+REG32(BUS_IDLE_TIMING, 0xd8)
+REG32(I3C_VER_ID, 0xe0)
+REG32(I3C_VER_TYPE, 0xe4)
+REG32(EXTENDED_CAPABILITY, 0xe8)
+REG32(SLAVE_CONFIG, 0xec)
+
+static const uint32_t ast2600_i3c_device_resets[ASPEED_I3C_DEVICE_NR_REGS] = {
+ [R_HW_CAPABILITY] = 0x000e00bf,
+ [R_QUEUE_THLD_CTRL] = 0x01000101,
+ [R_I3C_VER_ID] = 0x3130302a,
+ [R_I3C_VER_TYPE] = 0x6c633033,
+ [R_DEVICE_ADDR_TABLE_POINTER] = 0x00080280,
+ [R_DEV_CHAR_TABLE_POINTER] = 0x00020200,
+ [A_VENDOR_SPECIFIC_REG_POINTER] = 0x000000b0,
+ [R_SLV_MAX_LEN] = 0x00ff00ff,
+};
+
+static uint64_t aspeed_i3c_device_read(void *opaque, hwaddr offset,
+ unsigned size)
+{
+ AspeedI3CDevice *s = ASPEED_I3C_DEVICE(opaque);
+ uint32_t addr = offset >> 2;
+ uint64_t value;
+
+ switch (addr) {
+ case R_COMMAND_QUEUE_PORT:
+ value = 0;
+ break;
+ default:
+ value = s->regs[addr];
+ break;
+ }
+
+ trace_aspeed_i3c_device_read(s->id, offset, value);
+
+ return value;
+}
+
+static void aspeed_i3c_device_write(void *opaque, hwaddr offset,
+ uint64_t value, unsigned size)
+{
+ AspeedI3CDevice *s = ASPEED_I3C_DEVICE(opaque);
+ uint32_t addr = offset >> 2;
+
+ trace_aspeed_i3c_device_write(s->id, offset, value);
+
+ switch (addr) {
+ case R_HW_CAPABILITY:
+ case R_RESPONSE_QUEUE_PORT:
+ case R_IBI_QUEUE_DATA:
+ case R_QUEUE_STATUS_LEVEL:
+ case R_PRESENT_STATE:
+ case R_CCC_DEVICE_STATUS:
+ case R_DEVICE_ADDR_TABLE_POINTER:
+ case R_VENDOR_SPECIFIC_REG_POINTER:
+ case R_SLV_CHAR_CTRL:
+ case R_SLV_MAX_LEN:
+ case R_MAX_READ_TURNAROUND:
+ case R_I3C_VER_ID:
+ case R_I3C_VER_TYPE:
+ case R_EXTENDED_CAPABILITY:
+ qemu_log_mask(LOG_GUEST_ERROR,
+ "%s: write to readonly register[%02lx] = %08lx\n",
+ __func__, offset, value);
+ break;
+ case R_RX_TX_DATA_PORT:
+ break;
+ case R_RESET_CTRL:
+ break;
+ default:
+ s->regs[addr] = value;
+ break;
+ }
+}
+
+static const VMStateDescription aspeed_i3c_device_vmstate = {
+ .name = TYPE_ASPEED_I3C,
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .fields = (VMStateField[]){
+ VMSTATE_UINT32_ARRAY(regs, AspeedI3CDevice, ASPEED_I3C_DEVICE_NR_REGS),
+ VMSTATE_END_OF_LIST(),
+ }
+};
+
+static const MemoryRegionOps aspeed_i3c_device_ops = {
+ .read = aspeed_i3c_device_read,
+ .write = aspeed_i3c_device_write,
+ .endianness = DEVICE_LITTLE_ENDIAN,
+};
+
+static void aspeed_i3c_device_reset(DeviceState *dev)
+{
+ AspeedI3CDevice *s = ASPEED_I3C_DEVICE(dev);
+
+ memcpy(s->regs, ast2600_i3c_device_resets, sizeof(s->regs));
+}
+
+static void aspeed_i3c_device_realize(DeviceState *dev, Error **errp)
+{
+ AspeedI3CDevice *s = ASPEED_I3C_DEVICE(dev);
+ g_autofree char *name = g_strdup_printf(TYPE_ASPEED_I3C_DEVICE ".%d",
+ s->id);
+
+ sysbus_init_irq(SYS_BUS_DEVICE(dev), &s->irq);
+
+ memory_region_init_io(&s->mr, OBJECT(s), &aspeed_i3c_device_ops,
+ s, name, ASPEED_I3C_DEVICE_NR_REGS << 2);
+}
+
+static uint64_t aspeed_i3c_read(void *opaque, hwaddr addr, unsigned int size)
+{
+ AspeedI3CState *s = ASPEED_I3C(opaque);
+ uint64_t val = 0;
+
+ val = s->regs[addr >> 2];
+
+ trace_aspeed_i3c_read(addr, val);
+
+ return val;
+}
+
+static void aspeed_i3c_write(void *opaque,
+ hwaddr addr,
+ uint64_t data,
+ unsigned int size)
+{
+ AspeedI3CState *s = ASPEED_I3C(opaque);
+
+ trace_aspeed_i3c_write(addr, data);
+
+ addr >>= 2;
+
+ /* I3C controller register */
+ switch (addr) {
+ case R_I3C1_REG1:
+ case R_I3C2_REG1:
+ case R_I3C3_REG1:
+ case R_I3C4_REG1:
+ case R_I3C5_REG1:
+ case R_I3C6_REG1:
+ if (data & R_I3C1_REG1_I2C_MODE_MASK) {
+ qemu_log_mask(LOG_UNIMP,
+ "%s: Not support I2C mode [%08lx]=%08lx",
+ __func__, addr << 2, data);
+ break;
+ }
+ if (data & R_I3C1_REG1_SA_EN_MASK) {
+ qemu_log_mask(LOG_UNIMP,
+ "%s: Not support slave mode [%08lx]=%08lx",
+ __func__, addr << 2, data);
+ break;
+ }
+ s->regs[addr] = data;
+ break;
+ default:
+ s->regs[addr] = data;
+ break;
+ }
+}
+
+static const MemoryRegionOps aspeed_i3c_ops = {
+ .read = aspeed_i3c_read,
+ .write = aspeed_i3c_write,
+ .endianness = DEVICE_LITTLE_ENDIAN,
+ .valid = {
+ .min_access_size = 1,
+ .max_access_size = 4,
+ }
+};
+
+static void aspeed_i3c_reset(DeviceState *dev)
+{
+ AspeedI3CState *s = ASPEED_I3C(dev);
+ memset(s->regs, 0, sizeof(s->regs));
+}
+
+static void aspeed_i3c_instance_init(Object *obj)
+{
+ AspeedI3CState *s = ASPEED_I3C(obj);
+ int i;
+
+ for (i = 0; i < ASPEED_I3C_NR_DEVICES; ++i) {
+ object_initialize_child(obj, "device[*]", &s->devices[i],
+ TYPE_ASPEED_I3C_DEVICE);
+ }
+}
+
+static void aspeed_i3c_realize(DeviceState *dev, Error **errp)
+{
+ int i;
+ AspeedI3CState *s = ASPEED_I3C(dev);
+ SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
+
+ memory_region_init(&s->iomem_container, OBJECT(s),
+ TYPE_ASPEED_I3C ".container", 0x8000);
+
+ sysbus_init_mmio(sbd, &s->iomem_container);
+
+ memory_region_init_io(&s->iomem, OBJECT(s), &aspeed_i3c_ops, s,
+ TYPE_ASPEED_I3C ".regs", ASPEED_I3C_NR_REGS << 2);
+
+ memory_region_add_subregion(&s->iomem_container, 0x0, &s->iomem);
+
+ for (i = 0; i < ASPEED_I3C_NR_DEVICES; ++i) {
+ Object *dev = OBJECT(&s->devices[i]);
+
+ if (!object_property_set_uint(dev, "device-id", i, errp)) {
+ return;
+ }
+
+ if (!sysbus_realize(SYS_BUS_DEVICE(dev), errp)) {
+ return;
+ }
+
+ /*
+ * Register Address of I3CX Device =
+ * (Base Address of Global Register) + (Offset of I3CX) + Offset
+ * X = 0, 1, 2, 3, 4, 5
+ * Offset of I3C0 = 0x2000
+ * Offset of I3C1 = 0x3000
+ * Offset of I3C2 = 0x4000
+ * Offset of I3C3 = 0x5000
+ * Offset of I3C4 = 0x6000
+ * Offset of I3C5 = 0x7000
+ */
+ memory_region_add_subregion(&s->iomem_container,
+ 0x2000 + i * 0x1000, &s->devices[i].mr);
+ }
+
+}
+
+static Property aspeed_i3c_device_properties[] = {
+ DEFINE_PROP_UINT8("device-id", AspeedI3CDevice, id, 0),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+static void aspeed_i3c_device_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+
+ dc->desc = "Aspeed I3C Device";
+ dc->realize = aspeed_i3c_device_realize;
+ dc->reset = aspeed_i3c_device_reset;
+ device_class_set_props(dc, aspeed_i3c_device_properties);
+}
+
+static const TypeInfo aspeed_i3c_device_info = {
+ .name = TYPE_ASPEED_I3C_DEVICE,
+ .parent = TYPE_SYS_BUS_DEVICE,
+ .instance_size = sizeof(AspeedI3CDevice),
+ .class_init = aspeed_i3c_device_class_init,
+};
+
+static const VMStateDescription vmstate_aspeed_i3c = {
+ .name = TYPE_ASPEED_I3C,
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT32_ARRAY(regs, AspeedI3CState, ASPEED_I3C_NR_REGS),
+ VMSTATE_STRUCT_ARRAY(devices, AspeedI3CState, ASPEED_I3C_NR_DEVICES, 1,
+ aspeed_i3c_device_vmstate, AspeedI3CDevice),
+ VMSTATE_END_OF_LIST(),
+ }
+};
+
+static void aspeed_i3c_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+
+ dc->realize = aspeed_i3c_realize;
+ dc->reset = aspeed_i3c_reset;
+ dc->desc = "Aspeed I3C Controller";
+ dc->vmsd = &vmstate_aspeed_i3c;
+}
+
+static const TypeInfo aspeed_i3c_info = {
+ .name = TYPE_ASPEED_I3C,
+ .parent = TYPE_SYS_BUS_DEVICE,
+ .instance_init = aspeed_i3c_instance_init,
+ .instance_size = sizeof(AspeedI3CState),
+ .class_init = aspeed_i3c_class_init,
+};
+
+static void aspeed_i3c_register_types(void)
+{
+ type_register_static(&aspeed_i3c_device_info);
+ type_register_static(&aspeed_i3c_info);
+}
+
+type_init(aspeed_i3c_register_types);
diff --git a/hw/misc/meson.build b/hw/misc/meson.build
index 3f41a3a5b2..d1a1169108 100644
--- a/hw/misc/meson.build
+++ b/hw/misc/meson.build
@@ -105,6 +105,7 @@ softmmu_ss.add(when: 'CONFIG_PVPANIC_PCI', if_true:
files('pvpanic-pci.c'))
softmmu_ss.add(when: 'CONFIG_AUX', if_true: files('auxbus.c'))
softmmu_ss.add(when: 'CONFIG_ASPEED_SOC', if_true: files(
'aspeed_hace.c',
+ 'aspeed_i3c.c',
'aspeed_lpc.c',
'aspeed_scu.c',
'aspeed_sdmc.c',
diff --git a/hw/misc/trace-events b/hw/misc/trace-events
index 2da96d167a..1c373dd0a4 100644
--- a/hw/misc/trace-events
+++ b/hw/misc/trace-events
@@ -199,6 +199,12 @@ armsse_mhu_write(uint64_t offset, uint64_t data, unsigned size)
"SSE-200 MHU wri
# aspeed_xdma.c
aspeed_xdma_write(uint64_t offset, uint64_t data) "XDMA write: offset 0x%" PRIx64
" data 0x%" PRIx64
+# aspeed_i3c.c
+aspeed_i3c_read(uint64_t offset, uint64_t data) "I3C read: offset 0x%" PRIx64 "
data 0x%" PRIx64
+aspeed_i3c_write(uint64_t offset, uint64_t data) "I3C write: offset 0x%" PRIx64 "
data 0x%" PRIx64
+aspeed_i3c_device_read(uint32_t deviceid, uint64_t offset, uint64_t data) "I3C Dev[%u] read:
offset 0x%" PRIx64 " data 0x%" PRIx64
+aspeed_i3c_device_write(uint32_t deviceid, uint64_t offset, uint64_t data) "I3C Dev[%u]
write: offset 0x%" PRIx64 " data 0x%" PRIx64
+
# bcm2835_property.c
bcm2835_mbox_property(uint32_t tag, uint32_t bufsize, size_t resplen) "mbox
property tag:0x%08x in_sz:%u out_sz:%zu"
diff --git a/include/hw/misc/aspeed_i3c.h b/include/hw/misc/aspeed_i3c.h
new file mode 100644
index 0000000000..39679dfa1a
--- /dev/null
+++ b/include/hw/misc/aspeed_i3c.h
@@ -0,0 +1,48 @@
+/*
+ * ASPEED I3C Controller
+ *
+ * Copyright (C) 2021 ASPEED Technology Inc.
+ *
+ * This code is licensed under the GPL version 2 or later. See
+ * the COPYING file in the top-level directory.
+ */
+
+#ifndef ASPEED_I3C_H
+#define ASPEED_I3C_H
+
+#include "hw/sysbus.h"
+
+#define TYPE_ASPEED_I3C "aspeed.i3c"
+#define TYPE_ASPEED_I3C_DEVICE "aspeed.i3c.device"
+OBJECT_DECLARE_TYPE(AspeedI3CState, AspeedI3CClass, ASPEED_I3C)
+
+#define ASPEED_I3C_NR_REGS (0x70 >> 2)
+#define ASPEED_I3C_DEVICE_NR_REGS (0x300 >> 2)
+#define ASPEED_I3C_NR_DEVICES 6
+
+OBJECT_DECLARE_SIMPLE_TYPE(AspeedI3CDevice, ASPEED_I3C_DEVICE)
+typedef struct AspeedI3CDevice {
+ /* <private> */
+ SysBusDevice parent;
+
+ /* <public> */
+ MemoryRegion mr;
+ qemu_irq irq;
+
+ uint8_t id;
+ uint32_t regs[ASPEED_I3C_DEVICE_NR_REGS];
+} AspeedI3CDevice;
+
+typedef struct AspeedI3CState {
+ /* <private> */
+ SysBusDevice parent;
+
+ /* <public> */
+ MemoryRegion iomem;
+ MemoryRegion iomem_container;
+ qemu_irq irq;
+
+ uint32_t regs[ASPEED_I3C_NR_REGS];
+ AspeedI3CDevice devices[ASPEED_I3C_NR_DEVICES];
+} AspeedI3CState;
+#endif /* ASPEED_I3C_H */
