diff options
Diffstat (limited to 'hw/nios2')
| -rw-r--r-- | hw/nios2/10m50_devboard.c | 181 | ||||
| -rw-r--r-- | hw/nios2/Kconfig | 13 | ||||
| -rw-r--r-- | hw/nios2/boot.c | 234 | ||||
| -rw-r--r-- | hw/nios2/boot.h | 10 | ||||
| -rw-r--r-- | hw/nios2/generic_nommu.c | 101 | ||||
| -rw-r--r-- | hw/nios2/meson.build | 6 |
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 6cb32f777b..0000000000 --- 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 4748ae27b6..0000000000 --- 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 cd75803fc2..0000000000 --- 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 59b9fbfc62..0000000000 --- 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 defa16953f..0000000000 --- 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 22277bd6c5..0000000000 --- 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} |