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/*
* TriCore Baseboard System emulation.
*
* Copyright (c) 2013-2014 Bastian Koppelmann C-Lab/University Paderborn
*
* 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/>.
*/
#include "qemu/osdep.h"
#include "qemu/units.h"
#include "qapi/error.h"
#include "cpu.h"
#include "net/net.h"
#include "hw/boards.h"
#include "hw/loader.h"
#include "elf.h"
#include "hw/tricore/tricore.h"
#include "hw/tricore/tricore_testdevice.h"
#include "qemu/error-report.h"
/* Board init. */
static struct tricore_boot_info tricoretb_binfo;
static void tricore_load_kernel(CPUTriCoreState *env)
{
uint64_t entry;
long kernel_size;
kernel_size = load_elf(tricoretb_binfo.kernel_filename, NULL,
NULL, NULL, &entry, NULL,
NULL, NULL, 0,
EM_TRICORE, 1, 0);
if (kernel_size <= 0) {
error_report("no kernel file '%s'",
tricoretb_binfo.kernel_filename);
exit(1);
}
env->PC = entry;
}
static void tricore_testboard_init(MachineState *machine, int board_id)
{
TriCoreCPU *cpu;
CPUTriCoreState *env;
TriCoreTestDeviceState *test_dev;
MemoryRegion *sysmem = get_system_memory();
MemoryRegion *ext_cram = g_new(MemoryRegion, 1);
MemoryRegion *ext_dram = g_new(MemoryRegion, 1);
MemoryRegion *int_cram = g_new(MemoryRegion, 1);
MemoryRegion *int_dram = g_new(MemoryRegion, 1);
MemoryRegion *pcp_data = g_new(MemoryRegion, 1);
MemoryRegion *pcp_text = g_new(MemoryRegion, 1);
cpu = TRICORE_CPU(cpu_create(machine->cpu_type));
env = &cpu->env;
memory_region_init_ram(ext_cram, NULL, "powerlink_ext_c.ram",
2 * MiB, &error_fatal);
memory_region_init_ram(ext_dram, NULL, "powerlink_ext_d.ram",
4 * MiB, &error_fatal);
memory_region_init_ram(int_cram, NULL, "powerlink_int_c.ram", 48 * KiB,
&error_fatal);
memory_region_init_ram(int_dram, NULL, "powerlink_int_d.ram", 48 * KiB,
&error_fatal);
memory_region_init_ram(pcp_data, NULL, "powerlink_pcp_data.ram",
16 * KiB, &error_fatal);
memory_region_init_ram(pcp_text, NULL, "powerlink_pcp_text.ram",
32 * KiB, &error_fatal);
memory_region_add_subregion(sysmem, 0x80000000, ext_cram);
memory_region_add_subregion(sysmem, 0xa1000000, ext_dram);
memory_region_add_subregion(sysmem, 0xd4000000, int_cram);
memory_region_add_subregion(sysmem, 0xd0000000, int_dram);
memory_region_add_subregion(sysmem, 0xf0050000, pcp_data);
memory_region_add_subregion(sysmem, 0xf0060000, pcp_text);
test_dev = g_new(TriCoreTestDeviceState, 1);
object_initialize(test_dev, sizeof(TriCoreTestDeviceState),
TYPE_TRICORE_TESTDEVICE);
memory_region_add_subregion(sysmem, 0xf0000000, &test_dev->iomem);
tricoretb_binfo.ram_size = machine->ram_size;
tricoretb_binfo.kernel_filename = machine->kernel_filename;
if (machine->kernel_filename) {
tricore_load_kernel(env);
}
}
static void tricoreboard_init(MachineState *machine)
{
tricore_testboard_init(machine, 0x183);
}
static void ttb_machine_init(MachineClass *mc)
{
mc->desc = "a minimal TriCore board";
mc->init = tricoreboard_init;
mc->default_cpu_type = TRICORE_CPU_TYPE_NAME("tc1796");
}
DEFINE_MACHINE("tricore_testboard", ttb_machine_init)
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