Add qemu 2.4.0

[kvmfornfv.git] / qemu / hw / unicore32 / puv3.c

diff --git a/qemu/hw/unicore32/puv3.c b/qemu/hw/unicore32/puv3.c
new file mode 100644 (file)
index 0000000..703e29d
--- /dev/null
+++ b/qemu/hw/unicore32/puv3.c
@@ -0,0 +1,145 @@
+/*
+ * Generic PKUnity SoC machine and board descriptor
+ *
+ * Copyright (C) 2010-2012 Guan Xuetao
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation, or any later version.
+ * See the COPYING file in the top-level directory.
+ */
+
+#include "qemu-common.h"
+#include "ui/console.h"
+#include "elf.h"
+#include "exec/address-spaces.h"
+#include "hw/sysbus.h"
+#include "hw/boards.h"
+#include "hw/loader.h"
+#include "hw/i386/pc.h"
+#include "sysemu/qtest.h"
+
+#undef DEBUG_PUV3
+#include "hw/unicore32/puv3.h"
+
+#define KERNEL_LOAD_ADDR        0x03000000
+#define KERNEL_MAX_SIZE         0x00800000 /* Just a guess */
+
+static void puv3_intc_cpu_handler(void *opaque, int irq, int level)
+{
+    UniCore32CPU *cpu = opaque;
+    CPUState *cs = CPU(cpu);
+
+    assert(irq == 0);
+    if (level) {
+        cpu_interrupt(cs, CPU_INTERRUPT_HARD);
+    } else {
+        cpu_reset_interrupt(cs, CPU_INTERRUPT_HARD);
+    }
+}
+
+static void puv3_soc_init(CPUUniCore32State *env)
+{
+    qemu_irq cpu_intc, irqs[PUV3_IRQS_NR];
+    DeviceState *dev;
+    MemoryRegion *i8042 = g_new(MemoryRegion, 1);
+    int i;
+
+    /* Initialize interrupt controller */
+    cpu_intc = qemu_allocate_irq(puv3_intc_cpu_handler,
+                                 uc32_env_get_cpu(env), 0);
+    dev = sysbus_create_simple("puv3_intc", PUV3_INTC_BASE, cpu_intc);
+    for (i = 0; i < PUV3_IRQS_NR; i++) {
+        irqs[i] = qdev_get_gpio_in(dev, i);
+    }
+
+    /* Initialize minimal necessary devices for kernel booting */
+    sysbus_create_simple("puv3_pm", PUV3_PM_BASE, NULL);
+    sysbus_create_simple("puv3_dma", PUV3_DMA_BASE, NULL);
+    sysbus_create_simple("puv3_ost", PUV3_OST_BASE, irqs[PUV3_IRQS_OST0]);
+    sysbus_create_varargs("puv3_gpio", PUV3_GPIO_BASE,
+            irqs[PUV3_IRQS_GPIOLOW0], irqs[PUV3_IRQS_GPIOLOW1],
+            irqs[PUV3_IRQS_GPIOLOW2], irqs[PUV3_IRQS_GPIOLOW3],
+            irqs[PUV3_IRQS_GPIOLOW4], irqs[PUV3_IRQS_GPIOLOW5],
+            irqs[PUV3_IRQS_GPIOLOW6], irqs[PUV3_IRQS_GPIOLOW7],
+            irqs[PUV3_IRQS_GPIOHIGH], NULL);
+
+    /* Keyboard (i8042), mouse disabled for nographic */
+    i8042_mm_init(irqs[PUV3_IRQS_PS2_KBD], NULL, i8042, PUV3_REGS_OFFSET, 4);
+    memory_region_add_subregion(get_system_memory(), PUV3_PS2_BASE, i8042);
+}
+
+static void puv3_board_init(CPUUniCore32State *env, ram_addr_t ram_size)
+{
+    MemoryRegion *ram_memory = g_new(MemoryRegion, 1);
+
+    /* SDRAM at address zero.  */
+    memory_region_init_ram(ram_memory, NULL, "puv3.ram", ram_size,
+                           &error_abort);
+    vmstate_register_ram_global(ram_memory);
+    memory_region_add_subregion(get_system_memory(), 0, ram_memory);
+}
+
+static const GraphicHwOps no_ops;
+
+static void puv3_load_kernel(const char *kernel_filename)
+{
+    int size;
+
+    if (kernel_filename == NULL && qtest_enabled()) {
+        return;
+    }
+    assert(kernel_filename != NULL);
+
+    /* only zImage format supported */
+    size = load_image_targphys(kernel_filename, KERNEL_LOAD_ADDR,
+            KERNEL_MAX_SIZE);
+    if (size < 0) {
+        hw_error("Load kernel error: '%s'\n", kernel_filename);
+    }
+
+    /* cheat curses that we have a graphic console, only under ocd console */
+    graphic_console_init(NULL, 0, &no_ops, NULL);
+}
+
+static void puv3_init(MachineState *machine)
+{
+    ram_addr_t ram_size = machine->ram_size;
+    const char *cpu_model = machine->cpu_model;
+    const char *kernel_filename = machine->kernel_filename;
+    const char *initrd_filename = machine->initrd_filename;
+    CPUUniCore32State *env;
+    UniCore32CPU *cpu;
+
+    if (initrd_filename) {
+        hw_error("Please use kernel built-in initramdisk.\n");
+    }
+
+    if (!cpu_model) {
+        cpu_model = "UniCore-II";
+    }
+
+    cpu = uc32_cpu_init(cpu_model);
+    if (!cpu) {
+        hw_error("Unable to find CPU definition\n");
+    }
+    env = &cpu->env;
+
+    puv3_soc_init(env);
+    puv3_board_init(env, ram_size);
+    puv3_load_kernel(kernel_filename);
+}
+
+static QEMUMachine puv3_machine = {
+    .name = "puv3",
+    .desc = "PKUnity Version-3 based on UniCore32",
+    .init = puv3_init,
+    .is_default = 1,
+};
+
+static void puv3_machine_init(void)
+{
+    qemu_register_machine(&puv3_machine);
+}
+
+machine_init(puv3_machine_init)