[Qemu-devel] [PATCH v7 02/15] target-tricore: Add board for systemmode

[Bastian Koppelmann <kbastian@mail.uni-paderborn.de>]

Add basic board to allow systemmode emulation

Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
---
v6 -> v7:
    - TRICORECPU -> TriCoreCPU.
    - CPUTRICOREState -> CPUTriCoreState.
    - tricore_testboard.c: Change Licence to GPL v2.
    - fprintf(stderr, ..) -> error_report(..).
    - tricore_boot_info: Remove unused fields.
    - tricore_testboard.c: Remove flash drive.
    - tricore_testboard.c: Is not default anymore, change desc.

 hw/tricore/Makefile.objs       |   1 +
 hw/tricore/tricore_testboard.c | 124 +++++++++++++++++++++++++++++++++++++++++
 include/hw/tricore/tricore.h   |  11 ++++
 3 files changed, 136 insertions(+)
 create mode 100644 hw/tricore/Makefile.objs
 create mode 100644 hw/tricore/tricore_testboard.c
 create mode 100644 include/hw/tricore/tricore.h

diff --git a/hw/tricore/Makefile.objs b/hw/tricore/Makefile.objs
new file mode 100644
index 0000000..435e095
--- /dev/null
+++ b/hw/tricore/Makefile.objs
@@ -0,0 +1 @@
+obj-y += tricore_testboard.o
diff --git a/hw/tricore/tricore_testboard.c b/hw/tricore/tricore_testboard.c
new file mode 100644
index 0000000..f412e27
--- /dev/null
+++ b/hw/tricore/tricore_testboard.c
@@ -0,0 +1,124 @@
+/*
+ * 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 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 "hw/hw.h"
+#include "hw/devices.h"
+#include "net/net.h"
+#include "sysemu/sysemu.h"
+#include "hw/boards.h"
+#include "hw/loader.h"
+#include "sysemu/blockdev.h"
+#include "exec/address-spaces.h"
+#include "hw/block/flash.h"
+#include "elf.h"
+#include "hw/tricore/tricore.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, (uint64_t *)&entry, NULL,
+                           NULL, 0,
+                           ELF_MACHINE, 1);
+    if (kernel_size <= 0) {
+        error_report("qemu: 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;
+
+    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);
+
+    if (!machine->cpu_model) {
+        machine->cpu_model = "tc1796";
+    }
+    cpu = cpu_tricore_init(machine->cpu_model);
+    env = &cpu->env;
+    if (!cpu) {
+        error_report("Unable to find CPU definition");
+        exit(1);
+    }
+    memory_region_init_ram(ext_cram, NULL, "powerlink_ext_c.ram", 2*1024*1024);
+    vmstate_register_ram_global(ext_cram);
+    memory_region_init_ram(ext_dram, NULL, "powerlink_ext_d.ram", 4*1024*1024);
+    vmstate_register_ram_global(ext_dram);
+    memory_region_init_ram(int_cram, NULL, "powerlink_int_c.ram", 48*1024);
+    vmstate_register_ram_global(int_cram);
+    memory_region_init_ram(int_dram, NULL, "powerlink_int_d.ram", 48*1024);
+    vmstate_register_ram_global(int_dram);
+    memory_region_init_ram(pcp_data, NULL, "powerlink_pcp_data.ram", 16*1024);
+    vmstate_register_ram_global(pcp_data);
+    memory_region_init_ram(pcp_text, NULL, "powerlink_pcp_text.ram", 32*1024);
+    vmstate_register_ram_global(pcp_text);
+
+    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);
+
+    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 QEMUMachine ttb_machine = {
+    .name = "tricore_testboard",
+    .desc = "a minimal TriCore board",
+    .init = tricoreboard_init,
+    .is_default = 0,
+};
+
+static void tricore_testboard_machine_init(void)
+{
+    qemu_register_machine(&ttb_machine);
+}
+
+machine_init(tricore_testboard_machine_init);
diff --git a/include/hw/tricore/tricore.h b/include/hw/tricore/tricore.h
new file mode 100644
index 0000000..5f13252
--- /dev/null
+++ b/include/hw/tricore/tricore.h
@@ -0,0 +1,11 @@
+#ifndef TRICORE_MISC_H
+#define TRICORE_MISC_H 1
+
+#include "exec/memory.h"
+#include "hw/irq.h"
+
+struct tricore_boot_info {
+    uint64_t ram_size;
+    const char *kernel_filename;
+};
+#endif
-- 
2.1.0