[Qemu-devel] [Qemu-devel RFC v2 4/4] msf2: Add Emcraft's Smartfusion2 SOM kit.

[Subbaraya Sundeep]

Emulated Emcraft's Smartfusion2 System On Module starter
kit.

Signed-off-by: Subbaraya Sundeep <address@hidden>
---
 default-configs/arm-softmmu.mak |   1 +
 hw/arm/Makefile.objs            |   2 +-
 hw/arm/msf2_soc.c               | 141 ++++++++++++++++++++++++++++++++++++++++
 3 files changed, 143 insertions(+), 1 deletion(-)
 create mode 100644 hw/arm/msf2_soc.c

diff --git a/default-configs/arm-softmmu.mak b/default-configs/arm-softmmu.mak
index 1e3bd2b..379f7e1 100644
--- a/default-configs/arm-softmmu.mak
+++ b/default-configs/arm-softmmu.mak
@@ -121,3 +121,4 @@ CONFIG_ACPI=y
 CONFIG_SMBIOS=y
 CONFIG_ASPEED_SOC=y
 CONFIG_GPIO_KEY=y
+CONFIG_MSF2=y
diff --git a/hw/arm/Makefile.objs b/hw/arm/Makefile.objs
index 4c5c4ee..cce2759 100644
--- a/hw/arm/Makefile.objs
+++ b/hw/arm/Makefile.objs
@@ -1,7 +1,7 @@
 obj-y += boot.o collie.o exynos4_boards.o gumstix.o highbank.o
 obj-$(CONFIG_DIGIC) += digic_boards.o
 obj-y += integratorcp.o mainstone.o musicpal.o nseries.o
-obj-y += omap_sx1.o palm.o realview.o spitz.o stellaris.o
+obj-y += omap_sx1.o palm.o realview.o spitz.o stellaris.o msf2_soc.o
 obj-y += tosa.o versatilepb.o vexpress.o virt.o xilinx_zynq.o z2.o
 obj-$(CONFIG_ACPI) += virt-acpi-build.o
 obj-y += netduino2.o
diff --git a/hw/arm/msf2_soc.c b/hw/arm/msf2_soc.c
new file mode 100644
index 0000000..7277b51
--- /dev/null
+++ b/hw/arm/msf2_soc.c
@@ -0,0 +1,141 @@
+/*
+ * Smartfusion2 SOM starter kit(from Emcraft) emulation.
+ *
+ * Copyright (c) 2017 Subbaraya Sundeep <address@hidden>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to 
deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 
FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "qemu/osdep.h"
+#include "qapi/error.h"
+#include "qemu-common.h"
+#include "hw/arm/arm.h"
+#include "exec/address-spaces.h"
+#include "hw/sysbus.h"
+#include "hw/char/serial.h"
+#include "hw/boards.h"
+#include "sysemu/block-backend.h"
+#include "hw/ssi/ssi.h"
+
+#define MSF2_NUM_USARTS       1
+#define MSF2_NUM_TIMERS       2
+
+#define ENVM_BASE_ADDRESS     0x60000000
+#define ENVM_SIZE             (128 * 1024)
+
+#define DDR_BASE_ADDRESS      0xA0000000
+#define DDR_SIZE              (64 * 1024 * 1024)
+
+#define SRAM_BASE_ADDRESS     0x20000000
+#define SRAM_SIZE             (64 * 1024)
+
+#define MSF2_TIMER_BASE       0x40004000
+#define MSF2_UART0_BASE       0x40000000
+#define MSF2_SYSREG_BASE      0x40038000
+#define MSF2_SPI0_BASE        0x40001000
+
+#define MSF2_SPI0_IRQ         2
+#define MSF2_UART0_IRQ        10
+#define MSF2_TIMER_IRQ0       14
+#define MSF2_TIMER_IRQ1       15
+
+static void msf2_init(MachineState *machine)
+{
+    const char *kernel_filename = NULL;
+    DeviceState *dev, *nvic;
+    MemoryRegion *system_memory = get_system_memory();
+    MemoryRegion *nvm = g_new(MemoryRegion, 1);
+    MemoryRegion *nvm_alias = g_new(MemoryRegion, 1);
+    MemoryRegion *sram = g_new(MemoryRegion, 1);
+    MemoryRegion *ddr = g_new(MemoryRegion, 1);
+    QemuOpts *machine_opts = qemu_get_machine_opts();
+    SysBusDevice *busdev;
+    DriveInfo *dinfo = drive_get_next(IF_MTD);
+    qemu_irq cs_line;
+    SSIBus *spi;
+
+    kernel_filename = qemu_opt_get(machine_opts, "kernel");
+
+    memory_region_init_ram(nvm, NULL, "MSF2.envm", ENVM_SIZE,
+                           &error_fatal);
+    memory_region_init_alias(nvm_alias, NULL, "MSF2.flash.alias",
+                             nvm, 0, ENVM_SIZE);
+    vmstate_register_ram_global(nvm);
+
+    memory_region_set_readonly(nvm, true);
+    memory_region_set_readonly(nvm_alias, true);
+
+    memory_region_add_subregion(system_memory, ENVM_BASE_ADDRESS, nvm);
+    memory_region_add_subregion(system_memory, 0, nvm_alias);
+
+    memory_region_init_ram(ddr, NULL, "MSF2.ddr", DDR_SIZE,
+                           &error_fatal);
+    vmstate_register_ram_global(ddr);
+    memory_region_add_subregion(system_memory, DDR_BASE_ADDRESS, ddr);
+
+    memory_region_init_ram(sram, NULL, "MSF2.sram", SRAM_SIZE,
+                           &error_fatal);
+    vmstate_register_ram_global(sram);
+    memory_region_add_subregion(system_memory, SRAM_BASE_ADDRESS, sram);
+
+    nvic = armv7m_init(system_memory, ENVM_SIZE, 96,
+                       kernel_filename, "cortex-m3");
+
+       if (serial_hds[0]) {
+                serial_mm_init(get_system_memory(), MSF2_UART0_BASE, 2,
+                       qdev_get_gpio_in(nvic, MSF2_UART0_IRQ),
+                       115200, serial_hds[0], DEVICE_NATIVE_ENDIAN);
+    }
+    dev = qdev_create(NULL, "msf2-timer");
+    qdev_prop_set_uint32(dev, "clock-frequency", 83 * 1000000);
+    qdev_init_nofail(dev);
+    sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, MSF2_TIMER_BASE);
+    sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0,
+                           qdev_get_gpio_in(nvic, MSF2_TIMER_IRQ0));
+    sysbus_connect_irq(SYS_BUS_DEVICE(dev), 1,
+                           qdev_get_gpio_in(nvic, MSF2_TIMER_IRQ1));
+
+    dev = qdev_create(NULL, "msf2-sysreg");
+    qdev_init_nofail(dev);
+    sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, MSF2_SYSREG_BASE);
+
+    dev = qdev_create(NULL, "msf2-spi");
+    qdev_init_nofail(dev);
+    busdev = SYS_BUS_DEVICE(dev);
+    sysbus_mmio_map(busdev, 0, MSF2_SPI0_BASE);
+    sysbus_connect_irq(busdev, 0, qdev_get_gpio_in(nvic, MSF2_SPI0_IRQ));
+
+    spi = (SSIBus *)qdev_get_child_bus(dev, "spi");
+    dev = ssi_create_slave_no_init(spi, "s25sl12801");
+    qdev_prop_set_uint8(dev, "spansion-cr2nv", 1);
+    if (dinfo)
+               qdev_prop_set_drive(dev, "drive", blk_by_legacy_dinfo(dinfo),
+                                    &error_fatal);
+    qdev_init_nofail(dev);
+    cs_line = qdev_get_gpio_in_named(dev, SSI_GPIO_CS, 0);
+    sysbus_connect_irq(busdev, 1, cs_line);
+}
+
+static void msf2_machine_init(MachineClass *mc)
+{
+    mc->desc = "SmartFusion2 SOM kit from Emcraft";
+    mc->init = msf2_init;
+}
+
+DEFINE_MACHINE("smartfusion2-som", msf2_machine_init)
-- 
2.5.0