[PATCH v3 02/17] hw/arm: add Xunlong Orange Pi PC machine

[Niek Linnenbank <nieklinnenbank@gmail.com>]

The Xunlong Orange Pi PC is an Allwinner H3 System on Chip
based embedded computer with mainline support in both U-Boot
and Linux. The board comes with a Quad Core Cortex A7 @ 1.3GHz,
512MB RAM, 100Mbit ethernet, USB, SD/MMC, USB, HDMI and
various other I/O. This commit add support for the Xunlong
Orange Pi PC machine.

Signed-off-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Tested-by: KONRAD Frederic <frederic.konrad@adacore.com>
---
 hw/arm/orangepi.c    | 93 ++++++++++++++++++++++++++++++++++++++++++++
 MAINTAINERS          |  1 +
 hw/arm/Makefile.objs |  2 +-
 3 files changed, 95 insertions(+), 1 deletion(-)
 create mode 100644 hw/arm/orangepi.c

diff --git a/hw/arm/orangepi.c b/hw/arm/orangepi.c
new file mode 100644
index 0000000000..051184f14f
--- /dev/null
+++ b/hw/arm/orangepi.c
@@ -0,0 +1,93 @@
+/*
+ * Orange Pi emulation
+ *
+ * Copyright (C) 2019 Niek Linnenbank <nieklinnenbank@gmail.com>
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "qemu/osdep.h"
+#include "exec/address-spaces.h"
+#include "qapi/error.h"
+#include "cpu.h"
+#include "hw/sysbus.h"
+#include "hw/boards.h"
+#include "hw/qdev-properties.h"
+#include "hw/arm/allwinner-h3.h"
+#include "sysemu/sysemu.h"
+
+static struct arm_boot_info orangepi_binfo = {
+    .board_id = -1,
+};
+
+typedef struct OrangePiState {
+    AwH3State *h3;
+    MemoryRegion sdram;
+} OrangePiState;
+
+static void orangepi_init(MachineState *machine)
+{
+    OrangePiState *s = g_new(OrangePiState, 1);
+
+    /* Only allow Cortex-A7 for this board */
+    if (strcmp(machine->cpu_type, ARM_CPU_TYPE_NAME("cortex-a7")) != 0) {
+        error_report("This board can only be used with cortex-a7 CPU");
+        exit(1);
+    }
+
+    s->h3 = AW_H3(object_new(TYPE_AW_H3));
+
+    /* Setup timer properties */
+    object_property_set_int(OBJECT(s->h3), 32768, "clk0-freq",
+                            &error_abort);
+    object_property_set_int(OBJECT(s->h3), 24000000, "clk1-freq",
+                            &error_abort);
+
+    /* Mark H3 object realized */
+    object_property_set_bool(OBJECT(s->h3), true, "realized", &error_abort);
+
+    /* SDRAM */
+    if (machine->ram_size != 1 * GiB) {
+        error_report("Requested ram size is not supported for this machine: "
+                     "restricted to 1GiB");
+        exit(1);
+    }
+    memory_region_allocate_system_memory(&s->sdram, NULL, "sdram",
+                                         machine->ram_size);
+    memory_region_add_subregion(get_system_memory(), s->h3->memmap[AW_H3_SDRAM],
+                                &s->sdram);
+
+    /* Load target kernel or start using BootROM */
+    if (bios_name) {
+        error_report("BIOS not supported for this machine");
+        exit(1);
+    }
+    orangepi_binfo.loader_start = s->h3->memmap[AW_H3_SDRAM];
+    orangepi_binfo.ram_size = machine->ram_size;
+    orangepi_binfo.nb_cpus  = AW_H3_NUM_CPUS;
+    arm_load_kernel(ARM_CPU(first_cpu), machine, &orangepi_binfo);
+}
+
+static void orangepi_machine_init(MachineClass *mc)
+{
+    mc->desc = "Orange Pi PC";
+    mc->init = orangepi_init;
+    mc->min_cpus = AW_H3_NUM_CPUS;
+    mc->max_cpus = AW_H3_NUM_CPUS;
+    mc->default_cpus = AW_H3_NUM_CPUS;
+    mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-a7");
+    mc->default_ram_size = 1 * GiB;
+}
+
+DEFINE_MACHINE("orangepi-pc", orangepi_machine_init)
diff --git a/MAINTAINERS b/MAINTAINERS
index dc2d7991bf..6e1b92b5fa 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -487,6 +487,7 @@ L: qemu-arm@nongnu.org
 S: Maintained
 F: hw/*/allwinner-h3*
 F: include/hw/*/allwinner-h3*
+F: hw/arm/orangepi.c
 
 ARM PrimeCell and CMSDK devices
 M: Peter Maydell <peter.maydell@linaro.org>
diff --git a/hw/arm/Makefile.objs b/hw/arm/Makefile.objs
index 956e496052..8d5ea453d5 100644
--- a/hw/arm/Makefile.objs
+++ b/hw/arm/Makefile.objs
@@ -34,7 +34,7 @@ obj-$(CONFIG_DIGIC) += digic.o
 obj-$(CONFIG_OMAP) += omap1.o omap2.o
 obj-$(CONFIG_STRONGARM) += strongarm.o
 obj-$(CONFIG_ALLWINNER_A10) += allwinner-a10.o cubieboard.o
-obj-$(CONFIG_ALLWINNER_H3) += allwinner-h3.o
+obj-$(CONFIG_ALLWINNER_H3) += allwinner-h3.o orangepi.o
 obj-$(CONFIG_RASPI) += bcm2835_peripherals.o bcm2836.o raspi.o
 obj-$(CONFIG_STM32F205_SOC) += stm32f205_soc.o
 obj-$(CONFIG_XLNX_ZYNQMP_ARM) += xlnx-zynqmp.o xlnx-zcu102.o
-- 
2.17.1