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[Qemu-devel] [PATCH v5 4/5] hw/arm: add sunxi machine type


From: liguang
Subject: [Qemu-devel] [PATCH v5 4/5] hw/arm: add sunxi machine type
Date: Wed, 27 Nov 2013 13:36:48 +0800

Signed-off-by: liguang <address@hidden>
---
 hw/arm/Makefile.objs |    1 +
 hw/arm/sunxi-soc.c   |   98 ++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 99 insertions(+), 0 deletions(-)
 create mode 100644 hw/arm/sunxi-soc.c

diff --git a/hw/arm/Makefile.objs b/hw/arm/Makefile.objs
index 3671b42..f9f3071 100644
--- a/hw/arm/Makefile.objs
+++ b/hw/arm/Makefile.objs
@@ -5,3 +5,4 @@ obj-y += tosa.o versatilepb.o vexpress.o xilinx_zynq.o z2.o
 
 obj-y += armv7m.o exynos4210.o pxa2xx.o pxa2xx_gpio.o pxa2xx_pic.o
 obj-y += omap1.o omap2.o strongarm.o
+obj-y += sunxi-soc.o
diff --git a/hw/arm/sunxi-soc.c b/hw/arm/sunxi-soc.c
new file mode 100644
index 0000000..3c9f204
--- /dev/null
+++ b/hw/arm/sunxi-soc.c
@@ -0,0 +1,98 @@
+/*
+ * Allwinner sunxi series SoC emulation
+ *
+ * Copyright (C) 2013 Li Guang
+ * Written by Li Guang <address@hidden>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License
+ * for more details.
+ */
+
+#include "hw/sysbus.h"
+#include "hw/devices.h"
+#include "hw/boards.h"
+#include "hw/arm/arm.h"
+#include "hw/ptimer.h"
+#include "hw/char/serial.h"
+#include "hw/timer/sunxi-pit.h"
+#include "hw/intc/sunxi-pic.h"
+
+#include "sysemu/sysemu.h"
+#include "exec/address-spaces.h"
+
+
+#define SUNXI_PIC_REG_BASE 0x01c20400
+#define SUNXI_PIT_REG_BASE 0x01c20c00
+#define SUNXI_UART0_REG_BASE 0x01c28000
+
+static struct arm_boot_info sunxi_binfo = {
+    .loader_start = 0x40000000,
+    .board_id = 0x1008,
+};
+
+static void sunxi_init(QEMUMachineInitArgs *args)
+{
+    ram_addr_t ram_size = args->ram_size;
+    const char *cpu_model = args->cpu_model;
+    const char *kernel_filename = args->kernel_filename;
+    const char *kernel_cmdline = args->kernel_cmdline;
+    ARMCPU *cpu;
+    MemoryRegion *address_space_mem = get_system_memory();
+    MemoryRegion *ram = g_new(MemoryRegion, 1);
+    MemoryRegion *ram_alias = g_new(MemoryRegion, 1);
+    qemu_irq pic[SUNXI_PIC_INT_NR];
+    DeviceState *dev;
+    uint8_t i;
+
+    /*here we currently support sunxi-4i*/
+    cpu_model = "cortex-a8";
+    cpu = cpu_arm_init(cpu_model);
+    if (!cpu) {
+        fprintf(stderr, "Unable to find CPU definition\n");
+        exit(1);
+    }
+
+    memory_region_init_ram(ram, NULL, "sunxi-soc.ram", ram_size);
+    memory_region_add_subregion(address_space_mem, 0, ram);
+    memory_region_init_alias(ram_alias, NULL, "ram.alias", ram, 0, ram_size);
+    memory_region_add_subregion(address_space_mem, 0x40000000, ram_alias);
+
+    dev = sysbus_create_varargs(TYPE_SUNXI_PIC, SUNXI_PIC_REG_BASE,
+                                qdev_get_gpio_in(DEVICE(cpu), ARM_CPU_IRQ),
+                                qdev_get_gpio_in(DEVICE(cpu), ARM_CPU_FIQ),
+                                NULL);
+    for (i = 0; i < SUNXI_PIC_INT_NR; i++) {
+        pic[i] = qdev_get_gpio_in(dev, i);
+    }
+
+    sysbus_create_varargs(TYPE_SUNXI_PIT, SUNXI_PIT_REG_BASE, pic[22], pic[23],
+                          pic[24], pic[25], pic[67], pic[68], NULL);
+
+    serial_mm_init(address_space_mem, SUNXI_UART0_REG_BASE, 2, pic[1], 115200,
+                    serial_hds[0], DEVICE_NATIVE_ENDIAN);
+
+    sunxi_binfo.ram_size = ram_size;
+    sunxi_binfo.kernel_filename = kernel_filename;
+    sunxi_binfo.kernel_cmdline = kernel_cmdline;
+    arm_load_kernel(cpu, &sunxi_binfo);
+}
+
+static QEMUMachine sunxi_machine = {
+    .name = "sunxi",
+    .desc = "Allwinner's SoC (sunxi series)",
+    .init = sunxi_init,
+};
+
+static void sunxi_machine_init(void)
+{
+    qemu_register_machine(&sunxi_machine);
+}
+
+machine_init(sunxi_machine_init);
-- 
1.7.2.5




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