989c8a46cc
Avoid the interrupt controller directly access the first cpu via the qemu_get_cpu() call. Pass it as argument to mcf5206_init() from the board code. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Thomas Huth <huth@tuxfamily.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-ID: <20231024083010.12453-3-philmd@linaro.org> Signed-off-by: Thomas Huth <huth@tuxfamily.org>
105 lines
2.9 KiB
C
105 lines
2.9 KiB
C
/*
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* Arnewsh 5206 ColdFire system emulation.
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*
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* Copyright (c) 2007 CodeSourcery.
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*
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* This code is licensed under the GPL
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*/
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#include "qemu/osdep.h"
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#include "qapi/error.h"
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#include "cpu.h"
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#include "hw/m68k/mcf.h"
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#include "hw/boards.h"
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#include "hw/loader.h"
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#include "elf.h"
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#include "qemu/error-report.h"
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#include "sysemu/qtest.h"
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#define KERNEL_LOAD_ADDR 0x10000
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#define AN5206_MBAR_ADDR 0x10000000
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#define AN5206_RAMBAR_ADDR 0x20000000
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static void mcf5206_init(M68kCPU *cpu, MemoryRegion *sysmem, uint32_t base)
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{
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DeviceState *dev;
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SysBusDevice *s;
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dev = qdev_new(TYPE_MCF5206_MBAR);
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object_property_set_link(OBJECT(dev), "m68k-cpu",
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OBJECT(cpu), &error_abort);
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s = SYS_BUS_DEVICE(dev);
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sysbus_realize_and_unref(s, &error_fatal);
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memory_region_add_subregion(sysmem, base, sysbus_mmio_get_region(s, 0));
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}
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static void an5206_init(MachineState *machine)
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{
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ram_addr_t ram_size = machine->ram_size;
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const char *kernel_filename = machine->kernel_filename;
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M68kCPU *cpu;
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CPUM68KState *env;
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int kernel_size;
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uint64_t elf_entry;
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hwaddr entry;
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MemoryRegion *address_space_mem = get_system_memory();
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MemoryRegion *sram = g_new(MemoryRegion, 1);
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cpu = M68K_CPU(cpu_create(machine->cpu_type));
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env = &cpu->env;
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/* Initialize CPU registers. */
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env->vbr = 0;
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/* TODO: allow changing MBAR and RAMBAR. */
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env->mbar = AN5206_MBAR_ADDR | 1;
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env->rambar0 = AN5206_RAMBAR_ADDR | 1;
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/* DRAM at address zero */
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memory_region_add_subregion(address_space_mem, 0, machine->ram);
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/* Internal SRAM. */
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memory_region_init_ram(sram, NULL, "an5206.sram", 512, &error_fatal);
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memory_region_add_subregion(address_space_mem, AN5206_RAMBAR_ADDR, sram);
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mcf5206_init(cpu, address_space_mem, AN5206_MBAR_ADDR);
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/* Load kernel. */
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if (!kernel_filename) {
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if (qtest_enabled()) {
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return;
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}
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error_report("Kernel image must be specified");
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exit(1);
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}
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kernel_size = load_elf(kernel_filename, NULL, NULL, NULL, &elf_entry,
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NULL, NULL, NULL, 1, EM_68K, 0, 0);
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entry = elf_entry;
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if (kernel_size < 0) {
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kernel_size = load_uimage(kernel_filename, &entry, NULL, NULL,
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NULL, NULL);
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}
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if (kernel_size < 0) {
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kernel_size = load_image_targphys(kernel_filename, KERNEL_LOAD_ADDR,
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ram_size - KERNEL_LOAD_ADDR);
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entry = KERNEL_LOAD_ADDR;
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}
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if (kernel_size < 0) {
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error_report("Could not load kernel '%s'", kernel_filename);
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exit(1);
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}
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env->pc = entry;
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}
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static void an5206_machine_init(MachineClass *mc)
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{
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mc->desc = "Arnewsh 5206";
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mc->init = an5206_init;
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mc->default_cpu_type = M68K_CPU_TYPE_NAME("m5206");
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mc->default_ram_id = "an5206.ram";
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}
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DEFINE_MACHINE("an5206", an5206_machine_init)
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