[Qemu-devel] [PATCH 3/3] arm: add EFM32GG-DK3750 support

[Rabin Vincent]

Add support for the EFM32GG990 MCU and its development board
EFM32GG-DK3750.  This is a Cortex-M3 platform supported
by mainline Linux.

Signed-off-by: Rabin Vincent <address@hidden>
---
 default-configs/arm-softmmu.mak |  1 +
 hw/arm/Makefile.objs            |  1 +
 hw/arm/efm32.c                  | 71 +++++++++++++++++++++++++++++++++++++++++
 3 files changed, 73 insertions(+)
 create mode 100644 hw/arm/efm32.c

diff --git a/default-configs/arm-softmmu.mak b/default-configs/arm-softmmu.mak
index f3513fa..d151f27 100644
--- a/default-configs/arm-softmmu.mak
+++ b/default-configs/arm-softmmu.mak
@@ -57,6 +57,7 @@ CONFIG_PL310=y
 CONFIG_PL330=y
 CONFIG_CADENCE=y
 CONFIG_XGMAC=y
+CONFIG_EFM32=y
 CONFIG_EXYNOS4=y
 CONFIG_PXA2XX=y
 CONFIG_BITBANG_I2C=y
diff --git a/hw/arm/Makefile.objs b/hw/arm/Makefile.objs
index 6088e53..7030a82 100644
--- a/hw/arm/Makefile.objs
+++ b/hw/arm/Makefile.objs
@@ -6,5 +6,6 @@ obj-y += tosa.o versatilepb.o vexpress.o virt.o xilinx_zynq.o 
z2.o
 
 obj-y += armv7m.o exynos4210.o pxa2xx.o pxa2xx_gpio.o pxa2xx_pic.o
 obj-$(CONFIG_DIGIC) += digic.o
+obj-$(CONFIG_EFM32) += efm32.o
 obj-y += omap1.o omap2.o strongarm.o
 obj-$(CONFIG_ALLWINNER_A10) += allwinner-a10.o cubieboard.o
diff --git a/hw/arm/efm32.c b/hw/arm/efm32.c
new file mode 100644
index 0000000..201f921
--- /dev/null
+++ b/hw/arm/efm32.c
@@ -0,0 +1,71 @@
+/*
+ * EFM32GG
+ *
+ * Copyright (C) 2014 Rabin Vincent <address@hidden>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#include "hw/sysbus.h"
+#include "hw/arm/arm.h"
+#include "hw/devices.h"
+#include "hw/boards.h"
+#include "hw/block/flash.h"
+#include "exec/address-spaces.h"
+
+static void efm32_init(QEMUMachineInitArgs *args)
+{
+    static const int timer_irq[] = {2, 12, 13, 14};
+    const char *cpu_model = args->cpu_model;
+    const char *kernel_filename = args->kernel_filename;
+    MemoryRegion *address_space_mem = get_system_memory();
+    qemu_irq *pic;
+    int i;
+    MemoryRegion *nor = g_new(MemoryRegion, 1);
+    MemoryRegion *psram = g_new(MemoryRegion, 1);
+    DriveInfo *dinfo;
+    uint32_t flashsize = 16 * 1024 * 1024;
+
+    pic = armv7m_init(address_space_mem, 1024, 128, kernel_filename, 
cpu_model);
+
+    memory_region_init_ram(psram, NULL, "psram", 4 * 1024 * 1024);
+    vmstate_register_ram_global(psram);
+    memory_region_add_subregion(address_space_mem, 0x88000000, psram);
+
+    memory_region_init_ram(nor, NULL, "flash", flashsize);
+    vmstate_register_ram_global(nor);
+    memory_region_add_subregion(address_space_mem, 0x8C000000, nor);
+    memory_region_set_readonly(nor, true);
+
+    sysbus_create_varargs("efm32-uart", 0x4000e400, pic[22], pic[23], NULL);
+    for (i = 0; i < 4; i++) {
+        sysbus_create_simple("efm32-timer", 0x40010000 + i * 0x400,
+                             pic[timer_irq[i]]);
+    }
+
+    dinfo = drive_get(IF_PFLASH, 0, 0);
+    if (dinfo) {
+        int sector_len = 128 * 1024;
+        if (!pflash_cfi01_register(0x8c000000, NULL, "dk.flash", flashsize,
+                                   dinfo ? dinfo->bdrv : NULL,
+                                   sector_len, flashsize / sector_len,
+                                   2, 0, 0, 0, 0, 0)) {
+            fprintf(stderr, "qemu: Error registering flash memory.\n");
+            exit(1);
+        }
+    }
+}
+
+static QEMUMachine efm32ggdk3750_machine = {
+    .name = "efm32ggdk3750",
+    .desc = "EnergyMicro Giant Gecko Development Kit",
+    .init = efm32_init,
+};
+
+static void efm32_machine_init(void)
+{
+    qemu_register_machine(&efm32ggdk3750_machine);
+}
+
+machine_init(efm32_machine_init);
-- 
2.0.0.rc0