target/nios2: Remove the deprecated Nios II target

The Nios II target is deprecated since v8.2 in commit 9997771bc1
("target/nios2: Deprecate the Nios II architecture").

Remove:
- Buildsys / CI infra
- User emulation
- System emulation (10m50-ghrd & nios2-generic-nommu machines)
- Tests

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Marek Vasut <marex@denx.de>
Message-Id: <20240327144806.11319-3-philmd@linaro.org>

6 files changed, 0 insertions, 545 deletions

diff --git a/hw/nios2/10m50_devboard.c b/hw/nios2/10m50_devboard.c
deleted file mode 100644
index 6cb32f7..0000000
--- a/hw/nios2/10m50_devboard.c
+++ /dev/null
@@ -1,181 +0,0 @@
-/*
- * Altera 10M50 Nios2 GHRD
- *
- * Copyright (c) 2016 Marek Vasut <marek.vasut@gmail.com>
- *
- * Based on LabX device code
- *
- * Copyright (c) 2012 Chris Wulff <crwulff@gmail.com>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, see
- * <http://www.gnu.org/licenses/lgpl-2.1.html>
- */
-
-#include "qemu/osdep.h"
-#include "qapi/error.h"
-
-#include "hw/sysbus.h"
-#include "hw/char/serial.h"
-#include "hw/intc/nios2_vic.h"
-#include "hw/qdev-properties.h"
-#include "sysemu/sysemu.h"
-#include "hw/boards.h"
-#include "exec/memory.h"
-#include "exec/address-spaces.h"
-#include "qemu/config-file.h"
-
-#include "boot.h"
-
-struct Nios2MachineState {
-    MachineState parent_obj;
-
-    MemoryRegion phys_tcm;
-    MemoryRegion phys_tcm_alias;
-    MemoryRegion phys_ram;
-    MemoryRegion phys_ram_alias;
-
-    bool vic;
-};
-
-#define TYPE_NIOS2_MACHINE  MACHINE_TYPE_NAME("10m50-ghrd")
-OBJECT_DECLARE_TYPE(Nios2MachineState, MachineClass, NIOS2_MACHINE)
-
-#define BINARY_DEVICE_TREE_FILE    "10m50-devboard.dtb"
-
-static void nios2_10m50_ghrd_init(MachineState *machine)
-{
-    Nios2MachineState *nms = NIOS2_MACHINE(machine);
-    Nios2CPU *cpu;
-    DeviceState *dev;
-    MemoryRegion *address_space_mem = get_system_memory();
-    ram_addr_t tcm_base = 0x0;
-    ram_addr_t tcm_size = 0x1000;    /* 1 kiB, but QEMU limit is 4 kiB */
-    ram_addr_t ram_base = 0x08000000;
-    ram_addr_t ram_size = 0x08000000;
-    qemu_irq irq[32];
-    int i;
-
-    /* Physical TCM (tb_ram_1k) with alias at 0xc0000000 */
-    memory_region_init_ram(&nms->phys_tcm, NULL, "nios2.tcm", tcm_size,
-                           &error_abort);
-    memory_region_init_alias(&nms->phys_tcm_alias, NULL, "nios2.tcm.alias",
-                             &nms->phys_tcm, 0, tcm_size);
-    memory_region_add_subregion(address_space_mem, tcm_base, &nms->phys_tcm);
-    memory_region_add_subregion(address_space_mem, 0xc0000000 + tcm_base,
-                                &nms->phys_tcm_alias);
-
-    /* Physical DRAM with alias at 0xc0000000 */
-    memory_region_init_ram(&nms->phys_ram, NULL, "nios2.ram", ram_size,
-                           &error_abort);
-    memory_region_init_alias(&nms->phys_ram_alias, NULL, "nios2.ram.alias",
-                             &nms->phys_ram, 0, ram_size);
-    memory_region_add_subregion(address_space_mem, ram_base, &nms->phys_ram);
-    memory_region_add_subregion(address_space_mem, 0xc0000000 + ram_base,
-                                &nms->phys_ram_alias);
-
-    /* Create CPU.  We need to set eic_present between init and realize. */
-    cpu = NIOS2_CPU(object_new(TYPE_NIOS2_CPU));
-
-    /* Enable the External Interrupt Controller within the CPU. */
-    cpu->eic_present = nms->vic;
-
-    /* Configure new exception vectors. */
-    cpu->reset_addr = 0xd4000000;
-    cpu->exception_addr = 0xc8000120;
-    cpu->fast_tlb_miss_addr = 0xc0000100;
-
-    qdev_realize_and_unref(DEVICE(cpu), NULL, &error_fatal);
-
-    if (nms->vic) {
-        dev = qdev_new(TYPE_NIOS2_VIC);
-        MemoryRegion *dev_mr;
-        qemu_irq cpu_irq;
-
-        object_property_set_link(OBJECT(dev), "cpu", OBJECT(cpu), &error_fatal);
-        sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
-
-        cpu_irq = qdev_get_gpio_in_named(DEVICE(cpu), "EIC", 0);
-        sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, cpu_irq);
-        for (i = 0; i < 32; i++) {
-            irq[i] = qdev_get_gpio_in(dev, i);
-        }
-
-        dev_mr = sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 0);
-        memory_region_add_subregion(address_space_mem, 0x18002000, dev_mr);
-    } else {
-        for (i = 0; i < 32; i++) {
-            irq[i] = qdev_get_gpio_in_named(DEVICE(cpu), "IRQ", i);
-        }
-    }
-
-    /* Register: Altera 16550 UART */
-    serial_mm_init(address_space_mem, 0xf8001600, 2, irq[1], 115200,
-                   serial_hd(0), DEVICE_NATIVE_ENDIAN);
-
-    /* Register: Timer sys_clk_timer  */
-    dev = qdev_new("ALTR.timer");
-    qdev_prop_set_uint32(dev, "clock-frequency", 75 * 1000000);
-    sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
-    sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, 0xf8001440);
-    sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, irq[0]);
-
-    /* Register: Timer sys_clk_timer_1  */
-    dev = qdev_new("ALTR.timer");
-    qdev_prop_set_uint32(dev, "clock-frequency", 75 * 1000000);
-    sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
-    sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, 0xe0000880);
-    sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, irq[5]);
-
-    nios2_load_kernel(cpu, ram_base, ram_size, machine->initrd_filename,
-                      BINARY_DEVICE_TREE_FILE, NULL);
-}
-
-static bool get_vic(Object *obj, Error **errp)
-{
-    Nios2MachineState *nms = NIOS2_MACHINE(obj);
-    return nms->vic;
-}
-
-static void set_vic(Object *obj, bool value, Error **errp)
-{
-    Nios2MachineState *nms = NIOS2_MACHINE(obj);
-    nms->vic = value;
-}
-
-static void nios2_10m50_ghrd_class_init(ObjectClass *oc, void *data)
-{
-    MachineClass *mc = MACHINE_CLASS(oc);
-
-    mc->desc = "Altera 10M50 GHRD Nios II design";
-    mc->init = nios2_10m50_ghrd_init;
-    mc->is_default = true;
-    mc->deprecation_reason = "Nios II architecture is deprecated";
-
-    object_class_property_add_bool(oc, "vic", get_vic, set_vic);
-    object_class_property_set_description(oc, "vic",
-        "Set on/off to enable/disable the Vectored Interrupt Controller");
-}
-
-static const TypeInfo nios2_10m50_ghrd_type_info = {
-    .name          = TYPE_NIOS2_MACHINE,
-    .parent        = TYPE_MACHINE,
-    .instance_size = sizeof(Nios2MachineState),
-    .class_init    = nios2_10m50_ghrd_class_init,
-};
-
-static void nios2_10m50_ghrd_type_init(void)
-{
-    type_register_static(&nios2_10m50_ghrd_type_info);
-}
-type_init(nios2_10m50_ghrd_type_init);
diff --git a/hw/nios2/Kconfig b/hw/nios2/Kconfig
deleted file mode 100644
index 4748ae2..0000000
--- a/hw/nios2/Kconfig
+++ /dev/null
@@ -1,13 +0,0 @@
-config NIOS2_10M50
-    bool
-    select NIOS2
-    select SERIAL
-    select ALTERA_TIMER
-    select NIOS2_VIC
-
-config NIOS2_GENERIC_NOMMU
-    bool
-    select NIOS2
-
-config NIOS2
-    bool
diff --git a/hw/nios2/boot.c b/hw/nios2/boot.c
deleted file mode 100644
index cd75803..0000000
--- a/hw/nios2/boot.c
+++ /dev/null
@@ -1,234 +0,0 @@
-/*
- * Nios2 kernel loader
- *
- * Copyright (c) 2016 Marek Vasut <marek.vasut@gmail.com>
- *
- * Based on microblaze kernel loader
- *
- * Copyright (c) 2012 Peter Crosthwaite <peter.crosthwaite@petalogix.com>
- * Copyright (c) 2012 PetaLogix
- * Copyright (c) 2009 Edgar E. Iglesias.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
-#include "qemu/osdep.h"
-#include "qemu/units.h"
-#include "qemu/datadir.h"
-#include "qemu/option.h"
-#include "qemu/config-file.h"
-#include "qemu/error-report.h"
-#include "qemu/guest-random.h"
-#include "sysemu/device_tree.h"
-#include "sysemu/reset.h"
-#include "hw/boards.h"
-#include "hw/loader.h"
-#include "elf.h"
-
-#include "boot.h"
-
-#include <libfdt.h>
-
-#define NIOS2_MAGIC    0x534f494e
-
-static struct nios2_boot_info {
-    void (*machine_cpu_reset)(Nios2CPU *);
-    uint32_t bootstrap_pc;
-    uint32_t cmdline;
-    uint32_t initrd_start;
-    uint32_t initrd_end;
-    uint32_t fdt;
-} boot_info;
-
-static void main_cpu_reset(void *opaque)
-{
-    Nios2CPU *cpu = opaque;
-    CPUState *cs = CPU(cpu);
-    CPUNios2State *env = &cpu->env;
-
-    cpu_reset(CPU(cpu));
-
-    env->regs[R_ARG0] = NIOS2_MAGIC;
-    env->regs[R_ARG1] = boot_info.initrd_start;
-    env->regs[R_ARG2] = boot_info.fdt;
-    env->regs[R_ARG3] = boot_info.cmdline;
-
-    cpu_set_pc(cs, boot_info.bootstrap_pc);
-    if (boot_info.machine_cpu_reset) {
-        boot_info.machine_cpu_reset(cpu);
-    }
-}
-
-static uint64_t translate_kernel_address(void *opaque, uint64_t addr)
-{
-    return addr - 0xc0000000LL;
-}
-
-static int nios2_load_dtb(struct nios2_boot_info bi, const uint32_t ramsize,
-                          const char *kernel_cmdline, const char *dtb_filename)
-{
-    MachineState *machine = MACHINE(qdev_get_machine());
-    int fdt_size;
-    void *fdt = NULL;
-    int r;
-    uint8_t rng_seed[32];
-
-    if (dtb_filename) {
-        fdt = load_device_tree(dtb_filename, &fdt_size);
-    }
-    if (!fdt) {
-        return 0;
-    }
-
-    qemu_guest_getrandom_nofail(rng_seed, sizeof(rng_seed));
-    qemu_fdt_setprop(fdt, "/chosen", "rng-seed", rng_seed, sizeof(rng_seed));
-
-    if (kernel_cmdline) {
-        r = qemu_fdt_setprop_string(fdt, "/chosen", "bootargs",
-                                    kernel_cmdline);
-        if (r < 0) {
-            fprintf(stderr, "couldn't set /chosen/bootargs\n");
-        }
-    }
-
-    if (bi.initrd_start) {
-        qemu_fdt_setprop_cell(fdt, "/chosen", "linux,initrd-start",
-                              translate_kernel_address(NULL, bi.initrd_start));
-
-        qemu_fdt_setprop_cell(fdt, "/chosen", "linux,initrd-end",
-                              translate_kernel_address(NULL, bi.initrd_end));
-    }
-
-    cpu_physical_memory_write(bi.fdt, fdt, fdt_size);
-
-    /* Set machine->fdt for 'dumpdtb' QMP/HMP command */
-    machine->fdt = fdt;
-
-    return fdt_size;
-}
-
-void nios2_load_kernel(Nios2CPU *cpu, hwaddr ddr_base,
-                            uint32_t ramsize,
-                            const char *initrd_filename,
-                            const char *dtb_filename,
-                            void (*machine_cpu_reset)(Nios2CPU *))
-{
-    const char *kernel_filename;
-    const char *kernel_cmdline;
-    const char *dtb_arg;
-    char *filename = NULL;
-
-    kernel_filename = current_machine->kernel_filename;
-    kernel_cmdline = current_machine->kernel_cmdline;
-    dtb_arg = current_machine->dtb;
-    /* default to pcbios dtb as passed by machine_init */
-    if (!dtb_arg) {
-        filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, dtb_filename);
-    }
-
-    boot_info.machine_cpu_reset = machine_cpu_reset;
-    qemu_register_reset(main_cpu_reset, cpu);
-
-    if (kernel_filename) {
-        int kernel_size, fdt_size;
-        uint64_t entry, high;
-
-        /* Boots a kernel elf binary. */
-        kernel_size = load_elf(kernel_filename, NULL, NULL, NULL,
-                               &entry, NULL, &high, NULL,
-                               TARGET_BIG_ENDIAN, EM_ALTERA_NIOS2, 0, 0);
-        if ((uint32_t)entry == 0xc0000000) {
-            /*
-             * The Nios II processor reference guide documents that the
-             * kernel is placed at virtual memory address 0xc0000000,
-             * and we've got something that points there.  Reload it
-             * and adjust the entry to get the address in physical RAM.
-             */
-            kernel_size = load_elf(kernel_filename, NULL,
-                                   translate_kernel_address, NULL,
-                                   &entry, NULL, NULL, NULL,
-                                   TARGET_BIG_ENDIAN, EM_ALTERA_NIOS2, 0, 0);
-            boot_info.bootstrap_pc = ddr_base + 0xc0000000 +
-                (entry & 0x07ffffff);
-        } else {
-            /* Use the entry point in the ELF image.  */
-            boot_info.bootstrap_pc = (uint32_t)entry;
-        }
-
-        /* If it wasn't an ELF image, try an u-boot image. */
-        if (kernel_size < 0) {
-            hwaddr uentry, loadaddr = LOAD_UIMAGE_LOADADDR_INVALID;
-
-            kernel_size = load_uimage(kernel_filename, &uentry, &loadaddr, 0,
-                                      NULL, NULL);
-            boot_info.bootstrap_pc = uentry;
-            high = loadaddr + kernel_size;
-        }
-
-        /* Not an ELF image nor an u-boot image, try a RAW image. */
-        if (kernel_size < 0) {
-            kernel_size = load_image_targphys(kernel_filename, ddr_base,
-                                              ramsize);
-            boot_info.bootstrap_pc = ddr_base;
-            high = ddr_base + kernel_size;
-        }
-
-        high = ROUND_UP(high, 1 * MiB);
-
-        /* If initrd is available, it goes after the kernel, aligned to 1M. */
-        if (initrd_filename) {
-            int initrd_size;
-            uint32_t initrd_offset;
-
-            boot_info.initrd_start = high;
-            initrd_offset = boot_info.initrd_start - ddr_base;
-
-            initrd_size = load_ramdisk(initrd_filename,
-                                       boot_info.initrd_start,
-                                       ramsize - initrd_offset);
-            if (initrd_size < 0) {
-                initrd_size = load_image_targphys(initrd_filename,
-                                                  boot_info.initrd_start,
-                                                  ramsize - initrd_offset);
-            }
-            if (initrd_size < 0) {
-                error_report("could not load initrd '%s'",
-                             initrd_filename);
-                exit(EXIT_FAILURE);
-            }
-            high += initrd_size;
-        }
-        high = ROUND_UP(high, 4);
-        boot_info.initrd_end = high;
-
-        /* Device tree must be placed right after initrd (if available) */
-        boot_info.fdt = high;
-        fdt_size = nios2_load_dtb(boot_info, ramsize, kernel_cmdline,
-                                  /* Preference a -dtb argument */
-                                  dtb_arg ? dtb_arg : filename);
-        high += fdt_size;
-
-        /* Kernel command is at the end, 4k aligned. */
-        boot_info.cmdline = ROUND_UP(high, 4 * KiB);
-        if (kernel_cmdline && strlen(kernel_cmdline)) {
-            pstrcpy_targphys("cmdline", boot_info.cmdline, 256, kernel_cmdline);
-        }
-    }
-    g_free(filename);
-}
diff --git a/hw/nios2/boot.h b/hw/nios2/boot.h
deleted file mode 100644
index 59b9fbf..0000000
--- a/hw/nios2/boot.h
+++ /dev/null
@@ -1,10 +0,0 @@
-#ifndef NIOS2_BOOT_H
-#define NIOS2_BOOT_H
-
-#include "cpu.h"
-
-void nios2_load_kernel(Nios2CPU *cpu, hwaddr ddr_base, uint32_t ramsize,
-                       const char *initrd_filename, const char *dtb_filename,
-                       void (*machine_cpu_reset)(Nios2CPU *));
-
-#endif /* NIOS2_BOOT_H */
diff --git a/hw/nios2/generic_nommu.c b/hw/nios2/generic_nommu.c
deleted file mode 100644
index defa169..0000000
--- a/hw/nios2/generic_nommu.c
+++ /dev/null
@@ -1,101 +0,0 @@
-/*
- * Generic simulator target with no MMU or devices.  This emulation is
- * compatible with the libgloss qemu-hosted.ld linker script for using
- * QEMU as an instruction set simulator.
- *
- * Copyright (c) 2018-2019 Mentor Graphics
- *
- * Copyright (c) 2016 Marek Vasut <marek.vasut@gmail.com>
- *
- * Based on LabX device code
- *
- * Copyright (c) 2012 Chris Wulff <crwulff@gmail.com>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, see
- * <http://www.gnu.org/licenses/lgpl-2.1.html>
- */
-
-#include "qemu/osdep.h"
-#include "qapi/error.h"
-
-#include "hw/char/serial.h"
-#include "hw/boards.h"
-#include "exec/memory.h"
-#include "exec/address-spaces.h"
-#include "qemu/config-file.h"
-
-#include "boot.h"
-
-#define BINARY_DEVICE_TREE_FILE    "generic-nommu.dtb"
-
-static void nios2_generic_nommu_init(MachineState *machine)
-{
-    Nios2CPU *cpu;
-    MemoryRegion *address_space_mem = get_system_memory();
-    MemoryRegion *phys_tcm = g_new(MemoryRegion, 1);
-    MemoryRegion *phys_tcm_alias = g_new(MemoryRegion, 1);
-    MemoryRegion *phys_ram = g_new(MemoryRegion, 1);
-    MemoryRegion *phys_ram_alias = g_new(MemoryRegion, 1);
-    ram_addr_t tcm_base = 0x0;
-    ram_addr_t tcm_size = 0x1000;    /* 1 kiB, but QEMU limit is 4 kiB */
-    ram_addr_t ram_base = 0x10000000;
-    ram_addr_t ram_size = 0x08000000;
-
-    /* Physical TCM (tb_ram_1k) with alias at 0xc0000000 */
-    memory_region_init_ram(phys_tcm, NULL, "nios2.tcm", tcm_size,
-                           &error_abort);
-    memory_region_init_alias(phys_tcm_alias, NULL, "nios2.tcm.alias",
-                             phys_tcm, 0, tcm_size);
-    memory_region_add_subregion(address_space_mem, tcm_base, phys_tcm);
-    memory_region_add_subregion(address_space_mem, 0xc0000000 + tcm_base,
-                                phys_tcm_alias);
-
-    /* Physical DRAM with alias at 0xc0000000 */
-    memory_region_init_ram(phys_ram, NULL, "nios2.ram", ram_size,
-                           &error_abort);
-    memory_region_init_alias(phys_ram_alias, NULL, "nios2.ram.alias",
-                             phys_ram, 0, ram_size);
-    memory_region_add_subregion(address_space_mem, ram_base, phys_ram);
-    memory_region_add_subregion(address_space_mem, 0xc0000000 + ram_base,
-                                phys_ram_alias);
-
-    cpu = NIOS2_CPU(cpu_create(TYPE_NIOS2_CPU));
-
-    /* Remove MMU */
-    cpu->mmu_present = false;
-
-    /* Reset vector is the first 32 bytes of RAM.  */
-    cpu->reset_addr = ram_base;
-
-    /* The interrupt vector comes right after reset.  */
-    cpu->exception_addr = ram_base + 0x20;
-
-    /*
-     * The linker script does have a TLB miss memory region declared,
-     * but this should never be used with no MMU.
-     */
-    cpu->fast_tlb_miss_addr = 0x7fff400;
-
-    nios2_load_kernel(cpu, ram_base, ram_size, machine->initrd_filename,
-                      BINARY_DEVICE_TREE_FILE, NULL);
-}
-
-static void nios2_generic_nommu_machine_init(struct MachineClass *mc)
-{
-    mc->desc = "Generic NOMMU Nios II design";
-    mc->init = nios2_generic_nommu_init;
-    mc->deprecation_reason = "Nios II architecture is deprecated";
-}
-
-DEFINE_MACHINE("nios2-generic-nommu", nios2_generic_nommu_machine_init);
diff --git a/hw/nios2/meson.build b/hw/nios2/meson.build
deleted file mode 100644
index 22277bd..0000000
--- a/hw/nios2/meson.build
+++ /dev/null
@@ -1,6 +0,0 @@
-nios2_ss = ss.source_set()
-nios2_ss.add(files('boot.c'), fdt)
-nios2_ss.add(when: 'CONFIG_NIOS2_10M50', if_true: files('10m50_devboard.c'))
-nios2_ss.add(when: 'CONFIG_NIOS2_GENERIC_NOMMU', if_true: files('generic_nommu.c'))
-
-hw_arch += {'nios2': nios2_ss}