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-rw-r--r--src/hw/unicore32/puv3.c140
1 files changed, 140 insertions, 0 deletions
diff --git a/src/hw/unicore32/puv3.c b/src/hw/unicore32/puv3.c
new file mode 100644
index 0000000..91117b2
--- /dev/null
+++ b/src/hw/unicore32/puv3.c
@@ -0,0 +1,140 @@
+/*
+ * 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_fatal);
+ 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 void puv3_machine_init(MachineClass *mc)
+{
+ mc->desc = "PKUnity Version-3 based on UniCore32";
+ mc->init = puv3_init;
+ mc->is_default = 1;
+}
+
+DEFINE_MACHINE("puv3", puv3_machine_init)
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