unicore32-softmmu: Add puv3 soc/board support

This patch only add puv3 soc/board support, which introduces puv3
machine description, and specifies console type.

Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

default-configs/unicore32-softmmu.mak

@@ -1 +1,2 @@
 # Default configuration for unicore32-softmmu
+CONFIG_PUV3=y

hw/puv3.c

@@ -0,0 +1,93 @@
+/*
+ * 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 "console.h"
+#include "elf.h"
+#include "exec-memory.h"
+#include "sysbus.h"
+#include "boards.h"
+#include "loader.h"
+#include "pc.h"
+
+#undef DEBUG_PUV3
+#include "puv3.h"
+
+#define KERNEL_LOAD_ADDR        0x03000000
+#define KERNEL_MAX_SIZE         0x00800000 /* Just a guess */
+
+static void puv3_soc_init(CPUUniCore32State *env)
+{
+    /* TODO */
+}
+
+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, "puv3.ram", ram_size);
+    vmstate_register_ram_global(ram_memory);
+    memory_region_add_subregion(get_system_memory(), 0, ram_memory);
+}
+
+static void puv3_load_kernel(const char *kernel_filename)
+{
+    int size;
+
+    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, NULL, NULL, NULL, NULL);
+}
+
+static void puv3_init(ram_addr_t ram_size, const char *boot_device,
+                     const char *kernel_filename, const char *kernel_cmdline,
+                     const char *initrd_filename, const char *cpu_model)
+{
+    CPUUniCore32State *env;
+
+    if (initrd_filename) {
+        hw_error("Please use kernel built-in initramdisk.\n");
+    }
+
+    if (!cpu_model) {
+        cpu_model = "UniCore-II";
+    }
+
+    env = cpu_init(cpu_model);
+    if (!env) {
+        hw_error("Unable to find CPU definition\n");
+    }
+
+    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,
+    .use_scsi = 0,
+};
+
+static void puv3_machine_init(void)
+{
+    qemu_register_machine(&puv3_machine);
+}
+
+machine_init(puv3_machine_init)

hw/puv3.h

@@ -0,0 +1,49 @@
+/*
+ * Misc PKUnity SoC declarations
+ *
+ * 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.
+ */
+#ifndef QEMU_HW_PUV3_H
+#define QEMU_HW_PUV3_H
+
+#define PUV3_REGS_OFFSET        (0x1000) /* 4K is reasonable */
+
+/* PKUnity System bus (AHB): 0xc0000000 - 0xedffffff (640MB) */
+#define PUV3_DMA_BASE           (0xc0200000) /* AHB-4 */
+
+/* PKUnity Peripheral bus (APB): 0xee000000 - 0xefffffff (128MB) */
+#define PUV3_GPIO_BASE          (0xee500000) /* APB-5 */
+#define PUV3_INTC_BASE          (0xee600000) /* APB-6 */
+#define PUV3_OST_BASE           (0xee800000) /* APB-8 */
+#define PUV3_PM_BASE            (0xeea00000) /* APB-10 */
+#define PUV3_PS2_BASE           (0xeeb00000) /* APB-11 */
+
+/* Hardware interrupts */
+#define PUV3_IRQS_NR            (32)
+
+#define PUV3_IRQS_GPIOLOW0      (0)
+#define PUV3_IRQS_GPIOLOW1      (1)
+#define PUV3_IRQS_GPIOLOW2      (2)
+#define PUV3_IRQS_GPIOLOW3      (3)
+#define PUV3_IRQS_GPIOLOW4      (4)
+#define PUV3_IRQS_GPIOLOW5      (5)
+#define PUV3_IRQS_GPIOLOW6      (6)
+#define PUV3_IRQS_GPIOLOW7      (7)
+#define PUV3_IRQS_GPIOHIGH      (8)
+#define PUV3_IRQS_PS2_KBD       (22)
+#define PUV3_IRQS_PS2_AUX       (23)
+#define PUV3_IRQS_OST0          (26)
+
+/* All puv3_*.c use DPRINTF for debug. */
+#ifdef DEBUG_PUV3
+#define DPRINTF(fmt, ...) printf("%s: " fmt , __func__, ## __VA_ARGS__)
+#else
+#define DPRINTF(fmt, ...) do {} while (0)
+#endif
+
+#endif /* !QEMU_HW_PUV3_H */

hw/unicore32/Makefile.objs

@@ -1 +1,6 @@
 # For UniCore32 machines and boards
+
+# PKUnity-v3 SoC and board information
+obj-${CONFIG_PUV3} += puv3.o
+
+obj-y := $(addprefix ../,$(obj-y))