@@ -1619,6 +1619,12 @@ F: docs/system/riscv/sifive_u.rst
F: hw/*/*sifive*.c
F: include/hw/*/*sifive*.h
+AMD Microblaze-V Generic Board
+M: Sai Pavan Boddu <sai.pavan.boddu@amd.com>
+S: Maintained
+F: hw/riscv/microblaze-v-generic.c
+F: docs/system/riscv/microblaze-v-generic.rst
+
RX Machines
-----------
rx-gdbsim
new file mode 100644
@@ -0,0 +1,42 @@
+Microblaze-V generic board (``amd-microblaze-v-generic``)
+=========================================================
+The AMD MicroBlaze™ V processor is a soft-core RISC-V processor IP for AMD
+adaptive SoCs and FPGAs. The MicroBlaze™ V processor is based on the 32-bit (or
+64-bit) RISC-V instruction set architecture (ISA) and contains interfaces
+compatible with the classic MicroBlaze™ V processor (i.e it is a drop in
+replacement for the classic MicroBlaze™ processor in existing RTL designs).
+More information can be found in below document.
+
+https://docs.amd.com/r/en-US/ug1629-microblaze-v-user-guide/MicroBlaze-V-Architecture
+
+The MicroBlaze™ V generic board in QEMU has following supported devices:
+
+ - timer
+ - uartlite
+ - uart16550
+ - emaclite
+ - timer2
+ - axi emac
+ - axi dma
+
+The MicroBlaze™ V core in QEMU has the following configuration:
+
+ - RV32I base integer instruction set
+ - "Zicsr" Control and Status register instructions
+ - "Zifencei" instruction-fetch
+ - Extensions: m, a, f, c
+
+Running
+"""""""
+Below is an example command line for launching mainline U-boot
+(xilinx_mbv32_defconfig) on the Microblaze-V generic board.
+
+.. code-block:: bash
+
+ $ qemu-system-riscv32 -M amd-microblaze-v-generic \
+ -display none \
+ -device loader,addr=0x80000000,file=u-boot-spl.bin,cpu-num=0 \
+ -device loader,addr=0x80200000,file=u-boot.img \
+ -serial mon:stdio \
+ -device loader,addr=0x83000000,file=system.dtb \
+ -m 2g
@@ -66,6 +66,7 @@ undocumented; you can get a complete list by running
.. toctree::
:maxdepth: 1
+ riscv/microblaze-v-generic
riscv/microchip-icicle-kit
riscv/shakti-c
riscv/sifive_u
new file mode 100644
@@ -0,0 +1,184 @@
+/*
+ * QEMU model of Microblaze V generic board.
+ *
+ * based on hw/microblaze/petalogix_ml605_mmu.c
+ *
+ * Copyright (c) 2011 Michal Simek <monstr@monstr.eu>
+ * Copyright (c) 2011 PetaLogix
+ * Copyright (c) 2009 Edgar E. Iglesias.
+ * Copyright (C) 2024, Advanced Micro Devices, Inc.
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ *
+ * Written by Sai Pavan Boddu <sai.pavan.boddu@amd.com
+ * and by Michal Simek <michal.simek@amd.com>.
+ */
+
+#include "qemu/osdep.h"
+#include "qemu/units.h"
+#include "qapi/error.h"
+#include "cpu.h"
+#include "hw/sysbus.h"
+#include "sysemu/sysemu.h"
+#include "net/net.h"
+#include "hw/boards.h"
+#include "hw/char/serial-mm.h"
+#include "exec/address-spaces.h"
+#include "hw/char/xilinx_uartlite.h"
+#include "hw/misc/unimp.h"
+
+#define LMB_BRAM_SIZE (128 * KiB)
+#define MEMORY_BASEADDR 0x80000000
+#define INTC_BASEADDR 0x41200000
+#define TIMER_BASEADDR 0x41c00000
+#define TIMER_BASEADDR2 0x41c10000
+#define UARTLITE_BASEADDR 0x40600000
+#define ETHLITE_BASEADDR 0x40e00000
+#define UART16550_BASEADDR 0x44a10000
+#define AXIENET_BASEADDR 0x40c00000
+#define AXIDMA_BASEADDR 0x41e00000
+#define GPIO_BASEADDR 0x40000000
+#define GPIO_BASEADDR2 0x40010000
+#define GPIO_BASEADDR3 0x40020000
+#define I2C_BASEADDR 0x40800000
+#define QSPI_BASEADDR 0x44a00000
+
+#define TIMER_IRQ 0
+#define UARTLITE_IRQ 1
+#define UART16550_IRQ 4
+#define ETHLITE_IRQ 5
+#define TIMER_IRQ2 6
+#define AXIENET_IRQ 7
+#define AXIDMA_IRQ1 8
+#define AXIDMA_IRQ0 9
+
+static void mb_v_generic_init(MachineState *machine)
+{
+ ram_addr_t ram_size = machine->ram_size;
+ DeviceState *dev, *dma, *eth0;
+ Object *ds, *cs;
+ int i;
+ RISCVCPU *cpu;
+ hwaddr ddr_base = MEMORY_BASEADDR;
+ MemoryRegion *phys_lmb_bram = g_new(MemoryRegion, 1);
+ MemoryRegion *phys_ram = g_new(MemoryRegion, 1);
+ qemu_irq irq[32];
+ MemoryRegion *sysmem = get_system_memory();
+
+ cpu = RISCV_CPU(object_new(machine->cpu_type));
+ object_property_set_bool(OBJECT(cpu), "h", false, NULL);
+ object_property_set_bool(OBJECT(cpu), "d", false, NULL);
+ qdev_realize(DEVICE(cpu), NULL, &error_abort);
+ /* Attach emulated BRAM through the LMB. */
+ memory_region_init_ram(phys_lmb_bram, NULL,
+ "mb_v.lmb_bram", LMB_BRAM_SIZE,
+ &error_fatal);
+ memory_region_add_subregion(sysmem, 0x00000000, phys_lmb_bram);
+
+ memory_region_init_ram(phys_ram, NULL, "mb_v.ram",
+ ram_size, &error_fatal);
+ memory_region_add_subregion(sysmem, ddr_base, phys_ram);
+
+ dev = qdev_new("xlnx.xps-intc");
+ qdev_prop_set_uint32(dev, "kind-of-intr",
+ 1 << UARTLITE_IRQ);
+ sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
+ sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, INTC_BASEADDR);
+ sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0,
+ qdev_get_gpio_in(DEVICE(cpu), 11));
+ for (i = 0; i < 32; i++) {
+ irq[i] = qdev_get_gpio_in(dev, i);
+ }
+
+ /* Uartlite */
+ dev = qdev_new(TYPE_XILINX_UARTLITE);
+ qdev_prop_set_chr(dev, "chardev", serial_hd(0));
+ sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
+ sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, UARTLITE_BASEADDR);
+ sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, irq[UARTLITE_IRQ]);
+
+ /* Full uart */
+ serial_mm_init(sysmem, UART16550_BASEADDR + 0x1000, 2,
+ irq[UART16550_IRQ], 115200, serial_hd(1),
+ DEVICE_LITTLE_ENDIAN);
+
+ /* 2 timers at irq 0 @ 100 Mhz. */
+ dev = qdev_new("xlnx.xps-timer");
+ qdev_prop_set_uint32(dev, "one-timer-only", 0);
+ qdev_prop_set_uint32(dev, "clock-frequency", 100000000);
+ sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
+ sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, TIMER_BASEADDR);
+ sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, irq[TIMER_IRQ]);
+
+ /* 2 timers at irq 3 @ 100 Mhz. */
+ dev = qdev_new("xlnx.xps-timer");
+ qdev_prop_set_uint32(dev, "one-timer-only", 0);
+ qdev_prop_set_uint32(dev, "clock-frequency", 100000000);
+ sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
+ sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, TIMER_BASEADDR2);
+ sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, irq[TIMER_IRQ2]);
+
+ /* Emaclite */
+ dev = qdev_new("xlnx.xps-ethernetlite");
+ qemu_configure_nic_device(dev, true, NULL);
+ qdev_prop_set_uint32(dev, "tx-ping-pong", 0);
+ qdev_prop_set_uint32(dev, "rx-ping-pong", 0);
+ sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
+ sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, ETHLITE_BASEADDR);
+ sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, irq[ETHLITE_IRQ]);
+
+ /* axi ethernet and dma initialization. */
+ eth0 = qdev_new("xlnx.axi-ethernet");
+ dma = qdev_new("xlnx.axi-dma");
+
+ /* FIXME: attach to the sysbus instead */
+ object_property_add_child(qdev_get_machine(), "xilinx-eth", OBJECT(eth0));
+ object_property_add_child(qdev_get_machine(), "xilinx-dma", OBJECT(dma));
+
+ ds = object_property_get_link(OBJECT(dma),
+ "axistream-connected-target", NULL);
+ cs = object_property_get_link(OBJECT(dma),
+ "axistream-control-connected-target", NULL);
+ qemu_configure_nic_device(eth0, true, NULL);
+ qdev_prop_set_uint32(eth0, "rxmem", 0x1000);
+ qdev_prop_set_uint32(eth0, "txmem", 0x1000);
+ object_property_set_link(OBJECT(eth0), "axistream-connected", ds,
+ &error_abort);
+ object_property_set_link(OBJECT(eth0), "axistream-control-connected", cs,
+ &error_abort);
+ sysbus_realize_and_unref(SYS_BUS_DEVICE(eth0), &error_fatal);
+ sysbus_mmio_map(SYS_BUS_DEVICE(eth0), 0, AXIENET_BASEADDR);
+ sysbus_connect_irq(SYS_BUS_DEVICE(eth0), 0, irq[AXIENET_IRQ]);
+
+ ds = object_property_get_link(OBJECT(eth0),
+ "axistream-connected-target", NULL);
+ cs = object_property_get_link(OBJECT(eth0),
+ "axistream-control-connected-target", NULL);
+ qdev_prop_set_uint32(dma, "freqhz", 100000000);
+ object_property_set_link(OBJECT(dma), "axistream-connected", ds,
+ &error_abort);
+ object_property_set_link(OBJECT(dma), "axistream-control-connected", cs,
+ &error_abort);
+ sysbus_realize_and_unref(SYS_BUS_DEVICE(dma), &error_fatal);
+ sysbus_mmio_map(SYS_BUS_DEVICE(dma), 0, AXIDMA_BASEADDR);
+ sysbus_connect_irq(SYS_BUS_DEVICE(dma), 0, irq[AXIDMA_IRQ0]);
+ sysbus_connect_irq(SYS_BUS_DEVICE(dma), 1, irq[AXIDMA_IRQ1]);
+
+ /* unimplemented devices */
+ create_unimplemented_device("gpio", GPIO_BASEADDR, 0x10000);
+ create_unimplemented_device("gpio2", GPIO_BASEADDR2, 0x10000);
+ create_unimplemented_device("gpio3", GPIO_BASEADDR3, 0x10000);
+ create_unimplemented_device("i2c", I2C_BASEADDR, 0x10000);
+ create_unimplemented_device("qspi", QSPI_BASEADDR, 0x10000);
+}
+
+static void mb_v_generic_machine_init(MachineClass *mc)
+{
+ mc->desc = "AMD Microblaze-V generic platform";
+ mc->init = mb_v_generic_init;
+ mc->min_cpus = 1;
+ mc->max_cpus = 1;
+ mc->default_cpu_type = TYPE_RISCV_CPU_BASE;
+ mc->default_cpus = 1;
+}
+
+DEFINE_MACHINE("amd-microblaze-v-generic", mb_v_generic_machine_init)
@@ -25,6 +25,14 @@ config MICROCHIP_PFSOC
select SIFIVE_PLIC
select UNIMP
+config MICROBLAZE_V
+ bool
+ default y
+ depends on RISCV32 || RISCV64
+ select XILINX
+ select XILINX_AXI
+ select XILINX_ETHLITE
+
config OPENTITAN
bool
default y
@@ -11,5 +11,6 @@ riscv_ss.add(when: 'CONFIG_SPIKE', if_true: files('spike.c'))
riscv_ss.add(when: 'CONFIG_MICROCHIP_PFSOC', if_true: files('microchip_pfsoc.c'))
riscv_ss.add(when: 'CONFIG_ACPI', if_true: files('virt-acpi-build.c'))
riscv_ss.add(when: 'CONFIG_RISCV_IOMMU', if_true: files('riscv-iommu.c', 'riscv-iommu-pci.c', 'riscv-iommu-sys.c'))
+riscv_ss.add(when: 'CONFIG_MICROBLAZE_V', if_true: files('microblaze-v-generic.c'))
hw_arch += {'riscv': riscv_ss}