130 lines
4.2 KiB
C
130 lines
4.2 KiB
C
/*
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* TriCore Baseboard System emulation.
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*
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* Copyright (c) 2013-2014 Bastian Koppelmann C-Lab/University Paderborn
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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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 "qemu-common.h"
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#include "cpu.h"
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#include "hw/hw.h"
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#include "hw/devices.h"
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#include "net/net.h"
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#include "sysemu/sysemu.h"
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#include "hw/boards.h"
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#include "hw/loader.h"
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#include "sysemu/block-backend.h"
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#include "exec/address-spaces.h"
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#include "hw/block/flash.h"
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#include "elf.h"
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#include "hw/tricore/tricore.h"
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#include "qemu/error-report.h"
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/* Board init. */
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static struct tricore_boot_info tricoretb_binfo;
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static void tricore_load_kernel(CPUTriCoreState *env)
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{
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uint64_t entry;
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long kernel_size;
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kernel_size = load_elf(tricoretb_binfo.kernel_filename, NULL,
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NULL, &entry, NULL,
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NULL, 0,
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EM_TRICORE, 1, 0);
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if (kernel_size <= 0) {
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error_report("qemu: no kernel file '%s'",
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tricoretb_binfo.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 tricore_testboard_init(MachineState *machine, int board_id)
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{
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TriCoreCPU *cpu;
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CPUTriCoreState *env;
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MemoryRegion *sysmem = get_system_memory();
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MemoryRegion *ext_cram = g_new(MemoryRegion, 1);
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MemoryRegion *ext_dram = g_new(MemoryRegion, 1);
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MemoryRegion *int_cram = g_new(MemoryRegion, 1);
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MemoryRegion *int_dram = g_new(MemoryRegion, 1);
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MemoryRegion *pcp_data = g_new(MemoryRegion, 1);
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MemoryRegion *pcp_text = g_new(MemoryRegion, 1);
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if (!machine->cpu_model) {
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machine->cpu_model = "tc1796";
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}
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cpu = cpu_tricore_init(machine->cpu_model);
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if (!cpu) {
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error_report("Unable to find CPU definition");
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exit(1);
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}
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env = &cpu->env;
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memory_region_init_ram(ext_cram, NULL, "powerlink_ext_c.ram", 2*1024*1024,
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&error_fatal);
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vmstate_register_ram_global(ext_cram);
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memory_region_init_ram(ext_dram, NULL, "powerlink_ext_d.ram", 4*1024*1024,
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&error_fatal);
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vmstate_register_ram_global(ext_dram);
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memory_region_init_ram(int_cram, NULL, "powerlink_int_c.ram", 48*1024,
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&error_fatal);
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vmstate_register_ram_global(int_cram);
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memory_region_init_ram(int_dram, NULL, "powerlink_int_d.ram", 48*1024,
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&error_fatal);
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vmstate_register_ram_global(int_dram);
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memory_region_init_ram(pcp_data, NULL, "powerlink_pcp_data.ram", 16*1024,
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&error_fatal);
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vmstate_register_ram_global(pcp_data);
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memory_region_init_ram(pcp_text, NULL, "powerlink_pcp_text.ram", 32*1024,
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&error_fatal);
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vmstate_register_ram_global(pcp_text);
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memory_region_add_subregion(sysmem, 0x80000000, ext_cram);
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memory_region_add_subregion(sysmem, 0xa1000000, ext_dram);
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memory_region_add_subregion(sysmem, 0xd4000000, int_cram);
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memory_region_add_subregion(sysmem, 0xd0000000, int_dram);
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memory_region_add_subregion(sysmem, 0xf0050000, pcp_data);
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memory_region_add_subregion(sysmem, 0xf0060000, pcp_text);
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tricoretb_binfo.ram_size = machine->ram_size;
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tricoretb_binfo.kernel_filename = machine->kernel_filename;
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if (machine->kernel_filename) {
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tricore_load_kernel(env);
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}
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}
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static void tricoreboard_init(MachineState *machine)
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{
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tricore_testboard_init(machine, 0x183);
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}
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static void ttb_machine_init(MachineClass *mc)
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{
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mc->desc = "a minimal TriCore board";
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mc->init = tricoreboard_init;
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mc->is_default = 0;
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}
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DEFINE_MACHINE("tricore_testboard", ttb_machine_init)
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