hw/arm/xlnx-zcu102.c - qemu - Git at Google

 /*
  * Xilinx ZynqMP ZCU102 board
  *
  * Copyright (C) 2015 Xilinx Inc
  * Written by Peter Crosthwaite <peter.crosthwaite@xilinx.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.
  */

 #include "qemu/osdep.h"
 #include "qapi/error.h"
 #include "hw/arm/xlnx-zynqmp.h"
 #include "hw/boards.h"
 #include "qemu/error-report.h"
 #include "qemu/log.h"
 #include "sysemu/device_tree.h"
 #include "qom/object.h"
 #include "net/can_emu.h"

 struct XlnxZCU102 {
     MachineState parent_obj;

     XlnxZynqMPState soc;

     bool secure;
     bool virt;

     CanBusState *canbus[XLNX_ZYNQMP_NUM_CAN];

     struct arm_boot_info binfo;
 };

 #define TYPE_ZCU102_MACHINE   MACHINE_TYPE_NAME("xlnx-zcu102")
 OBJECT_DECLARE_SIMPLE_TYPE(XlnxZCU102, ZCU102_MACHINE)


 static bool zcu102_get_secure(Object *obj, Error **errp)
 {
     XlnxZCU102 *s = ZCU102_MACHINE(obj);

     return s->secure;
 }

 static void zcu102_set_secure(Object *obj, bool value, Error **errp)
 {
     XlnxZCU102 *s = ZCU102_MACHINE(obj);

     s->secure = value;
 }

 static bool zcu102_get_virt(Object *obj, Error **errp)
 {
     XlnxZCU102 *s = ZCU102_MACHINE(obj);

     return s->virt;
 }

 static void zcu102_set_virt(Object *obj, bool value, Error **errp)
 {
     XlnxZCU102 *s = ZCU102_MACHINE(obj);

     s->virt = value;
 }

 static void zcu102_modify_dtb(const struct arm_boot_info *binfo, void *fdt)
 {
     XlnxZCU102 *s = container_of(binfo, XlnxZCU102, binfo);
     bool method_is_hvc;
     char **node_path;
     const char *r;
     int prop_len;
     int i;

     /* If EL3 is enabled, we keep all firmware nodes active.  */
     if (!s->secure) {
         node_path = qemu_fdt_node_path(fdt, NULL, "xlnx,zynqmp-firmware",
                                        &error_fatal);

         for (i = 0; node_path && node_path[i]; i++) {
             r = qemu_fdt_getprop(fdt, node_path[i], "method", &prop_len, NULL);
             method_is_hvc = r && !strcmp("hvc", r);

             /* Allow HVC based firmware if EL2 is enabled.  */
             if (method_is_hvc && s->virt) {
                 continue;
             }
             qemu_fdt_setprop_string(fdt, node_path[i], "status", "disabled");
         }
         g_strfreev(node_path);
     }
 }

 static void xlnx_zcu102_init(MachineState *machine)
 {
     XlnxZCU102 *s = ZCU102_MACHINE(machine);
     int i;
     uint64_t ram_size = machine->ram_size;

     /* Create the memory region to pass to the SoC */
     if (ram_size > XLNX_ZYNQMP_MAX_RAM_SIZE) {
         error_report("ERROR: RAM size 0x%" PRIx64 " above max supported of "
                      "0x%llx", ram_size,
                      XLNX_ZYNQMP_MAX_RAM_SIZE);
         exit(1);
     }

     if (ram_size < 0x08000000) {
         qemu_log("WARNING: RAM size 0x%" PRIx64 " is small for ZCU102",
                  ram_size);
     }

     object_initialize_child(OBJECT(machine), "soc", &s->soc, TYPE_XLNX_ZYNQMP);

     object_property_set_link(OBJECT(&s->soc), "ddr-ram", OBJECT(machine->ram),
                              &error_abort);
     object_property_set_bool(OBJECT(&s->soc), "secure", s->secure,
                              &error_fatal);
     object_property_set_bool(OBJECT(&s->soc), "virtualization", s->virt,
                              &error_fatal);

     for (i = 0; i < XLNX_ZYNQMP_NUM_CAN; i++) {
         gchar *bus_name = g_strdup_printf("canbus%d", i);

         object_property_set_link(OBJECT(&s->soc), bus_name,
                                  OBJECT(s->canbus[i]), &error_fatal);
         g_free(bus_name);
     }

     qdev_realize(DEVICE(&s->soc), NULL, &error_fatal);

     /* Create and plug in the SD cards */
     for (i = 0; i < XLNX_ZYNQMP_NUM_SDHCI; i++) {
         BusState *bus;
         DriveInfo *di = drive_get_next(IF_SD);
         BlockBackend *blk = di ? blk_by_legacy_dinfo(di) : NULL;
         DeviceState *carddev;
         char *bus_name;

         bus_name = g_strdup_printf("sd-bus%d", i);
         bus = qdev_get_child_bus(DEVICE(&s->soc), bus_name);
         g_free(bus_name);
         if (!bus) {
             error_report("No SD bus found for SD card %d", i);
             exit(1);
         }
         carddev = qdev_new(TYPE_SD_CARD);
         qdev_prop_set_drive_err(carddev, "drive", blk, &error_fatal);
         qdev_realize_and_unref(carddev, bus, &error_fatal);
     }

     for (i = 0; i < XLNX_ZYNQMP_NUM_SPIS; i++) {
         BusState *spi_bus;
         DeviceState *flash_dev;
         qemu_irq cs_line;
         DriveInfo *dinfo = drive_get_next(IF_MTD);
         gchar *bus_name = g_strdup_printf("spi%d", i);

         spi_bus = qdev_get_child_bus(DEVICE(&s->soc), bus_name);
         g_free(bus_name);

         flash_dev = qdev_new("sst25wf080");
         if (dinfo) {
             qdev_prop_set_drive_err(flash_dev, "drive",
                                     blk_by_legacy_dinfo(dinfo), &error_fatal);
         }
         qdev_realize_and_unref(flash_dev, spi_bus, &error_fatal);

         cs_line = qdev_get_gpio_in_named(flash_dev, SSI_GPIO_CS, 0);

         sysbus_connect_irq(SYS_BUS_DEVICE(&s->soc.spi[i]), 1, cs_line);
     }

     for (i = 0; i < XLNX_ZYNQMP_NUM_QSPI_FLASH; i++) {
         BusState *spi_bus;
         DeviceState *flash_dev;
         qemu_irq cs_line;
         DriveInfo *dinfo = drive_get_next(IF_MTD);
         int bus = i / XLNX_ZYNQMP_NUM_QSPI_BUS_CS;
         gchar *bus_name = g_strdup_printf("qspi%d", bus);

         spi_bus = qdev_get_child_bus(DEVICE(&s->soc), bus_name);
         g_free(bus_name);

         flash_dev = qdev_new("n25q512a11");
         if (dinfo) {
             qdev_prop_set_drive_err(flash_dev, "drive",
                                     blk_by_legacy_dinfo(dinfo), &error_fatal);
         }
         qdev_realize_and_unref(flash_dev, spi_bus, &error_fatal);

         cs_line = qdev_get_gpio_in_named(flash_dev, SSI_GPIO_CS, 0);

         sysbus_connect_irq(SYS_BUS_DEVICE(&s->soc.qspi), i + 1, cs_line);
     }

     /* TODO create and connect IDE devices for ide_drive_get() */

     s->binfo.ram_size = ram_size;
     s->binfo.loader_start = 0;
     s->binfo.modify_dtb = zcu102_modify_dtb;
     arm_load_kernel(s->soc.boot_cpu_ptr, machine, &s->binfo);
 }

 static void xlnx_zcu102_machine_instance_init(Object *obj)
 {
     XlnxZCU102 *s = ZCU102_MACHINE(obj);

     /* Default to secure mode being disabled */
     s->secure = false;
     /* Default to virt (EL2) being disabled */
     s->virt = false;
     object_property_add_link(obj, "canbus0", TYPE_CAN_BUS,
                              (Object **)&s->canbus[0],
                              object_property_allow_set_link,
                              0);

     object_property_add_link(obj, "canbus1", TYPE_CAN_BUS,
                              (Object **)&s->canbus[1],
                              object_property_allow_set_link,
                              0);
 }

 static void xlnx_zcu102_machine_class_init(ObjectClass *oc, void *data)
 {
     MachineClass *mc = MACHINE_CLASS(oc);

     mc->desc = "Xilinx ZynqMP ZCU102 board with 4xA53s and 2xR5Fs based on " \
                "the value of smp";
     mc->init = xlnx_zcu102_init;
     mc->block_default_type = IF_IDE;
     mc->units_per_default_bus = 1;
     mc->ignore_memory_transaction_failures = true;
     mc->max_cpus = XLNX_ZYNQMP_NUM_APU_CPUS + XLNX_ZYNQMP_NUM_RPU_CPUS;
     mc->default_cpus = XLNX_ZYNQMP_NUM_APU_CPUS;
     mc->default_ram_id = "ddr-ram";

     object_class_property_add_bool(oc, "secure", zcu102_get_secure,
                                    zcu102_set_secure);
     object_class_property_set_description(oc, "secure",
                                           "Set on/off to enable/disable the ARM "
                                           "Security Extensions (TrustZone)");

     object_class_property_add_bool(oc, "virtualization", zcu102_get_virt,
                                    zcu102_set_virt);
     object_class_property_set_description(oc, "virtualization",
                                           "Set on/off to enable/disable emulating a "
                                           "guest CPU which implements the ARM "
                                           "Virtualization Extensions");
 }

 static const TypeInfo xlnx_zcu102_machine_init_typeinfo = {
     .name       = TYPE_ZCU102_MACHINE,
     .parent     = TYPE_MACHINE,
     .class_init = xlnx_zcu102_machine_class_init,
     .instance_init = xlnx_zcu102_machine_instance_init,
     .instance_size = sizeof(XlnxZCU102),
 };

 static void xlnx_zcu102_machine_init_register_types(void)
 {
     type_register_static(&xlnx_zcu102_machine_init_typeinfo);
 }

 type_init(xlnx_zcu102_machine_init_register_types)
	/*
	* Xilinx ZynqMP ZCU102 board
	*
	* Copyright (C) 2015 Xilinx Inc
	* Written by Peter Crosthwaite <peter.crosthwaite@xilinx.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.
	*/

	#include "qemu/osdep.h"
	#include "qapi/error.h"
	#include "hw/arm/xlnx-zynqmp.h"
	#include "hw/boards.h"
	#include "qemu/error-report.h"
	#include "qemu/log.h"
	#include "sysemu/device_tree.h"
	#include "qom/object.h"
	#include "net/can_emu.h"

	struct XlnxZCU102 {
	MachineState parent_obj;

	XlnxZynqMPState soc;

	bool secure;
	bool virt;

	CanBusState *canbus[XLNX_ZYNQMP_NUM_CAN];

	struct arm_boot_info binfo;
	};

	#define TYPE_ZCU102_MACHINE MACHINE_TYPE_NAME("xlnx-zcu102")
	OBJECT_DECLARE_SIMPLE_TYPE(XlnxZCU102, ZCU102_MACHINE)


	static bool zcu102_get_secure(Object obj, Error *errp)
	{
	XlnxZCU102 *s = ZCU102_MACHINE(obj);

	return s->secure;
	}

	static void zcu102_set_secure(Object obj, bool value, Error *errp)
	{
	XlnxZCU102 *s = ZCU102_MACHINE(obj);

	s->secure = value;
	}

	static bool zcu102_get_virt(Object obj, Error *errp)
	{
	XlnxZCU102 *s = ZCU102_MACHINE(obj);

	return s->virt;
	}

	static void zcu102_set_virt(Object obj, bool value, Error *errp)
	{
	XlnxZCU102 *s = ZCU102_MACHINE(obj);

	s->virt = value;
	}

	static void zcu102_modify_dtb(const struct arm_boot_info binfo, void fdt)
	{
	XlnxZCU102 *s = container_of(binfo, XlnxZCU102, binfo);
	bool method_is_hvc;
	char **node_path;
	const char *r;
	int prop_len;
	int i;

	/* If EL3 is enabled, we keep all firmware nodes active. */
	if (!s->secure) {
	node_path = qemu_fdt_node_path(fdt, NULL, "xlnx,zynqmp-firmware",
	&error_fatal);

	for (i = 0; node_path && node_path[i]; i++) {
	r = qemu_fdt_getprop(fdt, node_path[i], "method", &prop_len, NULL);
	method_is_hvc = r && !strcmp("hvc", r);

	/* Allow HVC based firmware if EL2 is enabled. */
	if (method_is_hvc && s->virt) {
	continue;
	}
	qemu_fdt_setprop_string(fdt, node_path[i], "status", "disabled");
	}
	g_strfreev(node_path);
	}
	}

	static void xlnx_zcu102_init(MachineState *machine)
	{
	XlnxZCU102 *s = ZCU102_MACHINE(machine);
	int i;
	uint64_t ram_size = machine->ram_size;

	/* Create the memory region to pass to the SoC */
	if (ram_size > XLNX_ZYNQMP_MAX_RAM_SIZE) {
	error_report("ERROR: RAM size 0x%" PRIx64 " above max supported of "
	"0x%llx", ram_size,
	XLNX_ZYNQMP_MAX_RAM_SIZE);
	exit(1);
	}

	if (ram_size < 0x08000000) {
	qemu_log("WARNING: RAM size 0x%" PRIx64 " is small for ZCU102",
	ram_size);
	}

	object_initialize_child(OBJECT(machine), "soc", &s->soc, TYPE_XLNX_ZYNQMP);

	object_property_set_link(OBJECT(&s->soc), "ddr-ram", OBJECT(machine->ram),
	&error_abort);
	object_property_set_bool(OBJECT(&s->soc), "secure", s->secure,
	&error_fatal);
	object_property_set_bool(OBJECT(&s->soc), "virtualization", s->virt,
	&error_fatal);

	for (i = 0; i < XLNX_ZYNQMP_NUM_CAN; i++) {
	gchar *bus_name = g_strdup_printf("canbus%d", i);

	object_property_set_link(OBJECT(&s->soc), bus_name,
	OBJECT(s->canbus[i]), &error_fatal);
	g_free(bus_name);
	}

	qdev_realize(DEVICE(&s->soc), NULL, &error_fatal);

	/* Create and plug in the SD cards */
	for (i = 0; i < XLNX_ZYNQMP_NUM_SDHCI; i++) {
	BusState *bus;
	DriveInfo *di = drive_get_next(IF_SD);
	BlockBackend *blk = di ? blk_by_legacy_dinfo(di) : NULL;
	DeviceState *carddev;
	char *bus_name;

	bus_name = g_strdup_printf("sd-bus%d", i);
	bus = qdev_get_child_bus(DEVICE(&s->soc), bus_name);
	g_free(bus_name);
	if (!bus) {
	error_report("No SD bus found for SD card %d", i);
	exit(1);
	}
	carddev = qdev_new(TYPE_SD_CARD);
	qdev_prop_set_drive_err(carddev, "drive", blk, &error_fatal);
	qdev_realize_and_unref(carddev, bus, &error_fatal);
	}

	for (i = 0; i < XLNX_ZYNQMP_NUM_SPIS; i++) {
	BusState *spi_bus;
	DeviceState *flash_dev;
	qemu_irq cs_line;
	DriveInfo *dinfo = drive_get_next(IF_MTD);
	gchar *bus_name = g_strdup_printf("spi%d", i);

	spi_bus = qdev_get_child_bus(DEVICE(&s->soc), bus_name);
	g_free(bus_name);

	flash_dev = qdev_new("sst25wf080");
	if (dinfo) {
	qdev_prop_set_drive_err(flash_dev, "drive",
	blk_by_legacy_dinfo(dinfo), &error_fatal);
	}
	qdev_realize_and_unref(flash_dev, spi_bus, &error_fatal);

	cs_line = qdev_get_gpio_in_named(flash_dev, SSI_GPIO_CS, 0);

	sysbus_connect_irq(SYS_BUS_DEVICE(&s->soc.spi[i]), 1, cs_line);
	}

	for (i = 0; i < XLNX_ZYNQMP_NUM_QSPI_FLASH; i++) {
	BusState *spi_bus;
	DeviceState *flash_dev;
	qemu_irq cs_line;
	DriveInfo *dinfo = drive_get_next(IF_MTD);
	int bus = i / XLNX_ZYNQMP_NUM_QSPI_BUS_CS;
	gchar *bus_name = g_strdup_printf("qspi%d", bus);

	spi_bus = qdev_get_child_bus(DEVICE(&s->soc), bus_name);
	g_free(bus_name);

	flash_dev = qdev_new("n25q512a11");
	if (dinfo) {
	qdev_prop_set_drive_err(flash_dev, "drive",
	blk_by_legacy_dinfo(dinfo), &error_fatal);
	}
	qdev_realize_and_unref(flash_dev, spi_bus, &error_fatal);

	cs_line = qdev_get_gpio_in_named(flash_dev, SSI_GPIO_CS, 0);

	sysbus_connect_irq(SYS_BUS_DEVICE(&s->soc.qspi), i + 1, cs_line);
	}

	/* TODO create and connect IDE devices for ide_drive_get() */

	s->binfo.ram_size = ram_size;
	s->binfo.loader_start = 0;
	s->binfo.modify_dtb = zcu102_modify_dtb;
	arm_load_kernel(s->soc.boot_cpu_ptr, machine, &s->binfo);
	}

	static void xlnx_zcu102_machine_instance_init(Object *obj)
	{
	XlnxZCU102 *s = ZCU102_MACHINE(obj);

	/* Default to secure mode being disabled */
	s->secure = false;
	/* Default to virt (EL2) being disabled */
	s->virt = false;
	object_property_add_link(obj, "canbus0", TYPE_CAN_BUS,
	(Object **)&s->canbus[0],
	object_property_allow_set_link,
	0);

	object_property_add_link(obj, "canbus1", TYPE_CAN_BUS,
	(Object **)&s->canbus[1],
	object_property_allow_set_link,
	0);
	}

	static void xlnx_zcu102_machine_class_init(ObjectClass oc, void data)
	{
	MachineClass *mc = MACHINE_CLASS(oc);

	mc->desc = "Xilinx ZynqMP ZCU102 board with 4xA53s and 2xR5Fs based on " \
	"the value of smp";
	mc->init = xlnx_zcu102_init;
	mc->block_default_type = IF_IDE;
	mc->units_per_default_bus = 1;
	mc->ignore_memory_transaction_failures = true;
	mc->max_cpus = XLNX_ZYNQMP_NUM_APU_CPUS + XLNX_ZYNQMP_NUM_RPU_CPUS;
	mc->default_cpus = XLNX_ZYNQMP_NUM_APU_CPUS;
	mc->default_ram_id = "ddr-ram";

	object_class_property_add_bool(oc, "secure", zcu102_get_secure,
	zcu102_set_secure);
	object_class_property_set_description(oc, "secure",
	"Set on/off to enable/disable the ARM "
	"Security Extensions (TrustZone)");

	object_class_property_add_bool(oc, "virtualization", zcu102_get_virt,
	zcu102_set_virt);
	object_class_property_set_description(oc, "virtualization",
	"Set on/off to enable/disable emulating a "
	"guest CPU which implements the ARM "
	"Virtualization Extensions");
	}

	static const TypeInfo xlnx_zcu102_machine_init_typeinfo = {
	.name = TYPE_ZCU102_MACHINE,
	.parent = TYPE_MACHINE,
	.class_init = xlnx_zcu102_machine_class_init,
	.instance_init = xlnx_zcu102_machine_instance_init,
	.instance_size = sizeof(XlnxZCU102),
	};

	static void xlnx_zcu102_machine_init_register_types(void)
	{
	type_register_static(&xlnx_zcu102_machine_init_typeinfo);
	}

	type_init(xlnx_zcu102_machine_init_register_types)